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|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3,100 |
2003.01909
|
Amin Azizi
|
Amin Azizi, Mehmet Dogan, Hu Long, Jeffrey D. Cain, Kyunghoon Lee,
Rahmatollah Eskandari, Alessandro Varieschi, Emily C. Glazer, Marvin L Cohen,
Alex Zettl
|
High-Performance Atomically-Thin Room-Temperature NO2 Sensor
| null |
Nano Lett. 2020, 20, 8, 6120-6127
|
10.1021/acs.nanolett.0c02221
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The development of room-temperature sensing devices for detecting small
concentrations of molecular species is imperative for a wide range of low-power
sensor applications. We demonstrate a room-temperature, highly sensitive,
selective, and reversible chemical sensor based on a monolayer of the
transition metal dichalcogenide Re0.5Nb0.5S2. The sensing device exhibits
thickness dependent carrier type, and upon exposure to NO2 molecules, its
electrical resistance considerably increases or decreases depending on the
layer number. The sensor is selective to NO2 with only minimal response to
other gases such as NH3, CH2O, and CO2. In the presence of humidity, not only
are the sensing properties not deteriorated, but also the monolayer sensor
shows complete reversibility with fast recovery at room temperature. We present
a theoretical analysis of the sensing platform and identify the
atomically-sensitive transduction mechanism.
|
[{'version': 'v1', 'created': 'Wed, 4 Mar 2020 06:18:54 GMT'}
{'version': 'v2', 'created': 'Fri, 17 Jul 2020 01:02:28 GMT'}]
|
2021-01-14
|
[array(['Azizi', 'Amin', ''], dtype=object)
array(['Dogan', 'Mehmet', ''], dtype=object)
array(['Long', 'Hu', ''], dtype=object)
array(['Cain', 'Jeffrey D.', ''], dtype=object)
array(['Lee', 'Kyunghoon', ''], dtype=object)
array(['Eskandari', 'Rahmatollah', ''], dtype=object)
array(['Varieschi', 'Alessandro', ''], dtype=object)
array(['Glazer', 'Emily C.', ''], dtype=object)
array(['Cohen', 'Marvin L', ''], dtype=object)
array(['Zettl', 'Alex', ''], dtype=object)]
|
3,101 |
1608.03940
|
Chengrong Deng
|
Chengrong Deng, Jialun Ping, Hongxia Huang, and Fan Wang
|
Heavy pentaquark states and a novel color structure
|
7 pages, 1 figure and 3 tables
|
Phys. Rev. D 95, 014031 (2017)
|
10.1103/PhysRevD.95.014031
| null |
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Encouraged by the observation of the pentaquark states $P^+_c(4380)$ and
$P^+_c(4450)$, we propose a novel color flux-tube structure, pentagonal state,
for pentaquark states within the framework of color flux-tube mode involving a
five-body confinement potential. Numerical results on the heavy pentaquark
states indicate that the states with three color flux-tube structures, diquark,
octet and pentagonal structures, have the close masses, which can therefore be
called QCD isomers analogous to isomers in Chemistry. The pentagonal structure
has lowest energy. The state $P^+_c(4380)$ can be described as the compact
pentaquark state $uudc\bar{c}$ with the pentagonal structure and
$J^P=\frac{3}{2}^-$ in the color flux-tube model. The state $P^+_c(4450)$ can
not be accommodated into the color flux-tube model. The heavy pentaquark states
$uudc\bar{b}$, $uudb\bar{c}$ and $uudb\bar{b}$ are predicted in the color
flux-tube model. The five-body confinement potential basing on the color
flux-tube picture as a collective degree of freedom is a dynamical mechanism in
the formation of the compact heavy pentaquark states.
|
[{'version': 'v1', 'created': 'Sat, 13 Aug 2016 04:22:32 GMT'}
{'version': 'v2', 'created': 'Tue, 3 Jan 2017 09:27:55 GMT'}]
|
2017-02-08
|
[array(['Deng', 'Chengrong', ''], dtype=object)
array(['Ping', 'Jialun', ''], dtype=object)
array(['Huang', 'Hongxia', ''], dtype=object)
array(['Wang', 'Fan', ''], dtype=object)]
|
3,102 |
1809.11000
|
Andrew Goryachev
|
Marcin Leda, Andrew J. Holland, and Andrew B. Goryachev
|
Autoamplification and competition drive symmetry breaking: Initiation of
centriole duplication by the PLK4-STIL network
| null | null | null | null |
q-bio.SC
|
http://creativecommons.org/licenses/by/4.0/
|
Symmetry breaking, a central principle of physics, has been hailed as the
driver of self-organization in biological systems in general and biogenesis of
cellular organelles in particular, but the molecular mechanisms of symmetry
breaking only begin to become understood. Centrioles, the structural cores of
centrosomes and cilia, must duplicate every cell cycle to ensure their faithful
inheritance through cellular divisions. Work in model organisms identified
conserved proteins required for centriole duplication and found that altering
their abundance affects centriole number. However, the biophysical principles
that ensure that, under physiological conditions, only a single procentriole is
produced on each mother centriole remain enigmatic. Here we propose a
mechanistic biophysical model for the initiation of procentriole formation in
mammalian cells. The model faithfully recapitulates the experimentally observed
transition from PLK4 uniformly distributed around the mother centriole, the
"ring", to a unique PLK4 focus, the "spot", that triggers the assembly of a new
procentriole. This symmetry breaking requires a dual positive feedback based on
autocatalytic activation of PLK4 and enhanced centriolar anchoring of PLK4-STIL
complexes by phosphorylated STIL. We find that, contrary to previous proposals,
in situ degradation of active PLK4 is insufficient to break symmetry. Instead,
the model predicts that competition between transient PLK4 activity maxima for
PLK4-STIL complexes explains both the instability of the PLK4 ring and
formation of the unique PLK4 spot. In the model, strong competition at
physiologically normal parameters robustly produces a single procentriole,
while increasing overexpression of PLK4 and STIL weakens the competition and
causes progressive addition of procentrioles in agreement with experimental
observations.
|
[{'version': 'v1', 'created': 'Fri, 28 Sep 2018 13:00:50 GMT'}]
|
2018-10-01
|
[array(['Leda', 'Marcin', ''], dtype=object)
array(['Holland', 'Andrew J.', ''], dtype=object)
array(['Goryachev', 'Andrew B.', ''], dtype=object)]
|
3,103 |
nucl-th/9705055
|
Raju Venugopalan
|
Larry McLerran (TPI, Minn.) and Raju Venugopalan (NBI)
|
Boost covariant gluon distributions in large nuclei
|
15 pages, LaTex + 1 figure, revised version, more extensive
discussion
|
Phys.Lett.B424:15-24,1998
|
10.1016/S0370-2693(98)00214-7
|
NBI--97--08
|
nucl-th hep-ph
| null |
It has been shown recently that there exist analytical solutions of the
Yang-Mills equations for non-Abelian Weizs\"acker-Williams fields which
describe the distribution of gluons in large nuclei at small x. These solutions
however depend on the color charge distribution at large rapidities. We here
construct a model of the color charge distribution of partons in the
fragmentation region and use it to compute the boost covariant momentum
distributions of wee gluons. The phenomenological applications of our results
are discussed.
|
[{'version': 'v1', 'created': 'Fri, 30 May 1997 11:16:28 GMT'}
{'version': 'v2', 'created': 'Mon, 17 Nov 1997 18:48:16 GMT'}
{'version': 'v3', 'created': 'Tue, 18 Nov 1997 10:07:40 GMT'}]
|
2011-08-17
|
[array(['McLerran', 'Larry', '', 'TPI, Minn.'], dtype=object)
array(['Venugopalan', 'Raju', '', 'NBI'], dtype=object)]
|
3,104 |
2004.09112
|
Hanbaek Lyu
|
Hanbaek Lyu, Christopher Strohmeier, Georg Menz, and Deanna Needell
|
COVID-19 Time-series Prediction by Joint Dictionary Learning and Online
NMF
|
8 pages, 4 figures
| null | null | null |
cs.LG math.OC stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Predicting the spread and containment of COVID-19 is a challenge of utmost
importance that the broader scientific community is currently facing. One of
the main sources of difficulty is that a very limited amount of daily COVID-19
case data is available, and with few exceptions, the majority of countries are
currently in the "exponential spread stage," and thus there is scarce
information available which would enable one to predict the phase transition
between spread and containment.
In this paper, we propose a novel approach to predicting the spread of
COVID-19 based on dictionary learning and online nonnegative matrix
factorization (online NMF). The key idea is to learn dictionary patterns of
short evolution instances of the new daily cases in multiple countries at the
same time, so that their latent correlation structures are captured in the
dictionary patterns. We first learn such patterns by minibatch learning from
the entire time-series and then further adapt them to the time-series by online
NMF. As we progressively adapt and improve the learned dictionary patterns to
the more recent observations, we also use them to make one-step predictions by
the partial fitting. Lastly, by recursively applying the one-step predictions,
we can extrapolate our predictions into the near future. Our prediction results
can be directly attributed to the learned dictionary patterns due to their
interpretability.
|
[{'version': 'v1', 'created': 'Mon, 20 Apr 2020 08:02:03 GMT'}]
|
2020-04-21
|
[array(['Lyu', 'Hanbaek', ''], dtype=object)
array(['Strohmeier', 'Christopher', ''], dtype=object)
array(['Menz', 'Georg', ''], dtype=object)
array(['Needell', 'Deanna', ''], dtype=object)]
|
3,105 |
hep-th/0402028
|
Kunihito Uzawa
|
Kunihito Uzawa, Kentaroh Yoshida
|
Effective Potential in PP-Wave Geometry
|
17pages, 1figure, LaTeX, minor changes
|
Nucl.Phys. B683 (2004) 122-136
|
10.1016/j.nuclphysb.2004.02.002
| null |
hep-th gr-qc hep-ph
| null |
We calculate effective potentials in scalar field theories on the maximally
supersymmetric pp-wave background in ten dimensions. For this purpose we have
to work in the light-cone formulation, and hence we introduce two methods to
compute them in the light-cone frame. One is to use the Yan's formula for
evaluating one-loop correction terms. The other is to introduce a cut-off for
the light-cone momentum. These methods are also confirmed in the case of
Minkowski spacetime.
|
[{'version': 'v1', 'created': 'Wed, 4 Feb 2004 05:44:46 GMT'}
{'version': 'v2', 'created': 'Thu, 19 Feb 2004 08:18:35 GMT'}
{'version': 'v3', 'created': 'Thu, 9 Jun 2005 02:55:39 GMT'}]
|
2009-11-10
|
[array(['Uzawa', 'Kunihito', ''], dtype=object)
array(['Yoshida', 'Kentaroh', ''], dtype=object)]
|
3,106 |
0801.1780
|
J\'er\^ome Bolte
|
Hedy Attouch, Jerome Bolte, Patrick Redont, Antoine Soubeyran
|
Proximal alternating minimization and projection methods for nonconvex
problems. An approach based on the Kurdyka-Lojasiewicz inequality
| null | null | null | null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the convergence properties of an alternating proximal minimization
algorithm for nonconvex structured functions of the type:
$L(x,y)=f(x)+Q(x,y)+g(y)$, where $f:\R^n\rightarrow\R\cup{+\infty}$ and
$g:\R^m\rightarrow\R\cup{+\infty}$ are proper lower semicontinuous functions,
and $Q:\R^n\times\R^m\rightarrow \R$ is a smooth $C^1$ function which couples
the variables $x$ and $y$. The algorithm can be viewed as a proximal
regularization of the usual Gauss-Seidel method to minimize $L$. We work in a
nonconvex setting, just assuming that the function $L$ satisfies the Kurdyka-\L
ojasiewicz inequality. An entire section illustrates the relevancy of such an
assumption by giving examples ranging from semialgebraic geometry to
"metrically regular" problems. Our main result can be stated as follows: If L
has the Kurdyka-\L ojasiewicz property, then each bounded sequence generated by
the algorithm converges to a critical point of $L$. This result is completed by
the study of the convergence rate of the algorithm, which depends on the
geometrical properties of the function $L$ around its critical points. When
specialized to $Q(x,y)=|x-y|^2$ and to $f$, $g$ indicator functions, the
algorithm is an alternating projection mehod (a variant of Von Neumann's) that
converges for a wide class of sets including semialgebraic and tame sets,
transverse smooth manifolds or sets with "regular" intersection. In order to
illustrate our results with concrete problems, we provide a convergent proximal
reweighted $\ell^1$ algorithm for compressive sensing and an application to
rank reduction problems.
|
[{'version': 'v1', 'created': 'Fri, 11 Jan 2008 13:54:05 GMT'}
{'version': 'v2', 'created': 'Thu, 17 Jan 2008 09:34:35 GMT'}
{'version': 'v3', 'created': 'Tue, 22 Jan 2013 20:19:54 GMT'}]
|
2013-01-23
|
[array(['Attouch', 'Hedy', ''], dtype=object)
array(['Bolte', 'Jerome', ''], dtype=object)
array(['Redont', 'Patrick', ''], dtype=object)
array(['Soubeyran', 'Antoine', ''], dtype=object)]
|
3,107 |
1805.04312
|
Takanori Kuroda
|
Takanori Kuroda, Mitsuharu \^Otani
|
Initial-boundary value problems for complex Ginzburg-Landau equations
governed by $p$-Laplacian in general domains
|
33 pages
| null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, complex Ginzburg-Landau (CGL) equations governed by
p-Laplacian are studied. We discuss the global existence of solutions for the
initial-boundary value problem of the equation in general domains. The global
solvability of the initial-boundary value problem for the case when $p = 2$ is
already examined by several authors provided that parameters appearing in CGL
equations satisfy a suitable condition. Our approach to CGL equations is based
on the theory of parabolic equations with non-monotone perturbations. By using
this method together with some approximate procedure and a diagonal argument,
the global solvability is shown without assuming any growth conditions on the
nonlinear terms.
|
[{'version': 'v1', 'created': 'Fri, 11 May 2018 10:34:36 GMT'}]
|
2018-05-14
|
[array(['Kuroda', 'Takanori', ''], dtype=object)
array(['Ôtani', 'Mitsuharu', ''], dtype=object)]
|
3,108 |
1211.3757
|
Ming-Hao Liu
|
Ming-Hao Liu
|
Gate-induced carrier density modulation in bulk graphene: Theories and
electrostatic simulation using Matlab pdetool
|
15 pages, 8 figures, significant revision with section 4.5 about
contact doping newly added
|
Journal of Computational Electronics, June 2013, Volume 12, Issue
2, pp 188-202
|
10.1007/s10825-013-0456-9
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This article aims at providing a self-contained introduction to theoretical
modeling of gate-induced carrier density in graphene sheets. For this, relevant
theories are introduced, namely, classical capacitance model (CCM),
self-consistent Poisson-Dirac method (PDM), and quantum capacitance model
(QCM). The usage of Matlab pdetool is also briefly introduced, pointing out the
least knowledge required for using this tool to solve the present electrostatic
problem. Results based on the three approaches are compared, showing that the
quantum correction, which is not considered by the CCM but by the other two,
plays a role only when the metal gate is exceedingly close to the graphene
sheet, and that the exactly solvable QCM works equally well as the
self-consistent PDM. Practical examples corresponding to realistic experimental
conditions for generating graphene pnp junctions and superlattices, as well as
how a background potential linear in position can be achieved in graphene, are
shown to illustrate the applicability of the introduced methods. Furthermore,
by treating metal contacts in the same way, the last example shows that the PDM
and the QCM are able to resolve the contact-induced doping and screening
potential, well agreeing with the previous first-principles studies.
|
[{'version': 'v1', 'created': 'Thu, 15 Nov 2012 21:32:21 GMT'}
{'version': 'v2', 'created': 'Wed, 3 Apr 2013 19:42:19 GMT'}]
|
2013-06-18
|
[array(['Liu', 'Ming-Hao', ''], dtype=object)]
|
3,109 |
1402.1958
|
Arthur Guez
|
Arthur Guez, David Silver, Peter Dayan
|
Better Optimism By Bayes: Adaptive Planning with Rich Models
|
11 pages, 11 figures
| null | null | null |
cs.AI cs.LG stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The computational costs of inference and planning have confined Bayesian
model-based reinforcement learning to one of two dismal fates: powerful
Bayes-adaptive planning but only for simplistic models, or powerful, Bayesian
non-parametric models but using simple, myopic planning strategies such as
Thompson sampling. We ask whether it is feasible and truly beneficial to
combine rich probabilistic models with a closer approximation to fully Bayesian
planning. First, we use a collection of counterexamples to show formal problems
with the over-optimism inherent in Thompson sampling. Then we leverage
state-of-the-art techniques in efficient Bayes-adaptive planning and
non-parametric Bayesian methods to perform qualitatively better than both
existing conventional algorithms and Thompson sampling on two contextual
bandit-like problems.
|
[{'version': 'v1', 'created': 'Sun, 9 Feb 2014 15:38:57 GMT'}]
|
2014-02-11
|
[array(['Guez', 'Arthur', ''], dtype=object)
array(['Silver', 'David', ''], dtype=object)
array(['Dayan', 'Peter', ''], dtype=object)]
|
3,110 |
2203.12355
|
Matteo Paoluzzi
|
Jorge P. Rodr\'iguez, Matteo Paoluzzi, Demian Levis, Michele Starnini
|
Epidemic processes on self-propelled particles: continuum and
agent-based modelling
| null | null | null | null |
cond-mat.stat-mech cond-mat.soft
|
http://creativecommons.org/licenses/by/4.0/
|
Most spreading processes require spatial proximity between agents. The
stationary state of spreading dynamics in a population of mobile agents thus
depends on the interplay between the time and length scales involved in the
epidemic process and their motion in space. We analyze the steady properties
resulting from such interplay in a simple model describing epidemic spreading
(modeled as a Susceptible-Infected-Susceptible process) on self-propelled
particles (performing Run-and-Tumble motion). Focusing our attention on the
diffusive long-time regime, we find that the agents' motion changes
qualitatively the nature of the epidemic transition characterized by the
emergence of a macroscopic fraction of infected agents. Indeed, the transition
becomes of the mean-field type for agents diffusing in one, two and three
dimensions, while, in the absence of motion, the epidemic outbreak depends on
the dimension of the underlying static network determined by the agents' fixed
locations. The insights obtained from a continuum description of the system are
validated by numerical simulations of an agent-based model. Our work aims at
bridging soft active matter physics and theoretical epidemiology, and may be of
interest for researchers in both communities.
|
[{'version': 'v1', 'created': 'Wed, 23 Mar 2022 12:10:06 GMT'}]
|
2022-03-24
|
[array(['Rodríguez', 'Jorge P.', ''], dtype=object)
array(['Paoluzzi', 'Matteo', ''], dtype=object)
array(['Levis', 'Demian', ''], dtype=object)
array(['Starnini', 'Michele', ''], dtype=object)]
|
3,111 |
2109.09678
|
James Walsh
|
James Walsh
|
An incompleteness theorem via ordinal analysis
| null | null | null | null |
math.LO
|
http://creativecommons.org/licenses/by/4.0/
|
We present an analogue of G\"{o}del's second incompleteness theorem for
systems of second-order arithmetic. Whereas G\"{o}del showed that sufficiently
strong theories that are $\Pi^0_1$-sound and $\Sigma^0_1$-definable do not
prove their own $\Pi^0_1$-soundness, we prove that sufficiently strong theories
that are $\Pi^1_1$-sound and $\Sigma^1_1$-definable do not prove their own
$\Pi^1_1$-soundness. Our proof does not involve the construction of a
self-referential sentence but rather relies on ordinal analysis.
|
[{'version': 'v1', 'created': 'Mon, 20 Sep 2021 16:47:00 GMT'}
{'version': 'v2', 'created': 'Tue, 20 Sep 2022 12:42:09 GMT'}]
|
2022-09-21
|
[array(['Walsh', 'James', ''], dtype=object)]
|
3,112 |
math/0606101
|
Ivan Losev
|
Ivan V. Losev
|
Computation of the Cartan spaces of affine homogeneous spaces
|
v1 20 pages, v2 minor corrections are made
|
Sbornik Math. 198(2007), 31-56
|
10.1070/SM2007v198n10ABEH003889
| null |
math.AG math.RT
| null |
Let $G$ be a reductive algebraic group and $H$ its reductive subgroup. Fix a
Borel subgroup $B\subset G$ and a maximal torus $T\subset B$. The Cartan space
$\a_{G,G/H}$ is, by definition, the subspace of $\Lie(T)^*$ generated by the
weights of $B$-semiinvariant rational functions on $G/H$. We compute the spaces
$\a_{G,G/H}$.
|
[{'version': 'v1', 'created': 'Mon, 5 Jun 2006 11:09:40 GMT'}
{'version': 'v2', 'created': 'Sun, 20 Aug 2006 05:02:03 GMT'}]
|
2015-06-26
|
[array(['Losev', 'Ivan V.', ''], dtype=object)]
|
3,113 |
1308.4441
|
Nicholas J. Kuhn
|
Nicholas J. Kuhn
|
The Whitehead Conjecture, the Tower of S^1 Conjecture, and Hecke
algebras of type A
|
27 pages. As accepted for publication by the Journal of Topology.
New: section 2 has been expanded, section 8 has been improved, and a
dedication has been added
| null |
10.1112/jtopol/jtu019
| null |
math.AT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the early 1980's the author proved G.W. Whitehead's conjecture about
stable homotopy groups and symmetric products. In the mid 1990's, Arone and
Mahowald showed that the Goodwillie tower of the identity had remarkably good
properties when specialized to odd dimensional spheres.
In this paper we prove that these results are linked, as has been long
suspected. We give a state-of-the-art proof of the Whitehead conjecture valid
for all primes, and simultaneously show that the identity tower specialized to
the circle collapses in the expected sense.
Key to our work is that Steenrod algebra module maps between the primitives
in the mod p homology of certain infinite loopspaces are determined by elements
in the mod p Hecke algebras of type A. Certain maps between spaces are shown to
be chain homotopy contractions by using identities in these Hecke algebras.
|
[{'version': 'v1', 'created': 'Tue, 20 Aug 2013 21:35:22 GMT'}
{'version': 'v2', 'created': 'Fri, 20 Sep 2013 20:10:55 GMT'}
{'version': 'v3', 'created': 'Mon, 18 Aug 2014 18:05:43 GMT'}]
|
2017-05-17
|
[array(['Kuhn', 'Nicholas J.', ''], dtype=object)]
|
3,114 |
1806.09848
|
EPTCS
|
Antonios Gouglidis (School of Computing and Communications, Lancaster
University, Lancaster, UK), Christos Grompanopoulos (Department of Mechanical
Engineering, University of Western Macedonia, Kozani, Greece), Anastasia
Mavridou (Institute for Software Integrated Systems, Vanderbilt University,
Nashville, TN, USA)
|
Formal Verification of Usage Control Models: A Case Study of UseCON
Using TLA+
|
In Proceedings MeTRiD 2018, arXiv:1806.09330
|
EPTCS 272, 2018, pp. 52-64
|
10.4204/EPTCS.272.5
| null |
cs.LO cs.CR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Usage control models provide an integration of access control, digital
rights, and trust management. To achieve this integration, usage control models
support additional concepts such as attribute mutability and continuity of
decision. However, these concepts may introduce an additional level of
complexity to the underlying model, rendering its definition a cumbersome and
prone to errors process. Applying a formal verification technique allows for a
rigorous analysis of the interactions amongst the components, and thus for
formal guarantees in respect of the correctness of a model. In this paper, we
elaborate on a case study, where we express the high-level functional model of
the UseCON usage control model in the TLA+ formal specification language, and
verify its correctness for <=12 uses in both of its supporting authorisation
models.
|
[{'version': 'v1', 'created': 'Tue, 26 Jun 2018 08:53:20 GMT'}]
|
2018-06-27
|
[array(['Gouglidis', 'Antonios', '',
'School of Computing and Communications, Lancaster\n University, Lancaster, UK'],
dtype=object)
array(['Grompanopoulos', 'Christos', '',
'Department of Mechanical\n Engineering, University of Western Macedonia, Kozani, Greece'],
dtype=object)
array(['Mavridou', 'Anastasia', '',
'Institute for Software Integrated Systems, Vanderbilt University,\n Nashville, TN, USA'],
dtype=object) ]
|
3,115 |
2009.08351
|
Dong Liu
|
Qinghong Yang, Zhesen Yang, Dong E. Liu
|
Intrinsic dissipative Floquet superconductors beyond mean-field theory
|
14 pages, 5 figures
|
Phys. Rev. B 104, 014512 (2021)
|
10.1103/PhysRevB.104.014512
| null |
cond-mat.supr-con cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the intrinsic superconductivity in a dissipative Floquet electronic
system in the presence of attractive interactions. Based on the functional
Keldysh theory beyond the mean-field treatment, we find that the system shows a
time-periodic bosonic condensation and reaches an intrinsic dissipative Floquet
superconducting (SC) phase. Due to the interplay between dissipations and
periodic modulations, the Floquet SC gap becomes "soft" and contains the
diffusive fermionic modes with finite lifetimes. However, bosonic modes of the
bosonic condensation are still propagating even in the presence of
dissipations.
|
[{'version': 'v1', 'created': 'Thu, 17 Sep 2020 14:59:23 GMT'}
{'version': 'v2', 'created': 'Mon, 19 Jul 2021 15:53:39 GMT'}]
|
2021-07-20
|
[array(['Yang', 'Qinghong', ''], dtype=object)
array(['Yang', 'Zhesen', ''], dtype=object)
array(['Liu', 'Dong E.', ''], dtype=object)]
|
3,116 |
cond-mat/9903193
|
Richard E. Prange
|
R. Narevich, R. E. Prange and Oleg Zaitsev (University of Maryland,
College Park)
|
Localization by interference: Square billiard with a magnetic flux
|
5 pages, 3 figures
| null | null | null |
cond-mat.mes-hall chao-dyn nlin.CD
| null |
Eigenstates and energy levels of a square quantum billiard in a magnetic
field, or with an Aharonov-Bohm flux line, are found in quasiclassical
approximation, that is, for high enough energy. Explicit formulas for the
energy levels and wavefunctions are found. There are localized states, never
before noticed in this well studied problem, whose localization is due to phase
interference, even though there is no or negligible classical effect of the
magnetic field. These and related states account almost entirely for the
magnetic response in certain temperature ranges, and thus have a bearing on the
experiments of Levy et al.
|
[{'version': 'v1', 'created': 'Thu, 11 Mar 1999 21:11:53 GMT'}]
|
2007-05-23
|
[array(['Narevich', 'R.', '', 'University of Maryland,\n College Park'],
dtype=object)
array(['Prange', 'R. E.', '', 'University of Maryland,\n College Park'],
dtype=object)
array(['Zaitsev', 'Oleg', '', 'University of Maryland,\n College Park'],
dtype=object) ]
|
3,117 |
0904.4767
|
Atac Imamoglu
|
C. Latta, A. H\"ogele, Y. Zhao, A. N. Vamivakas, P. Maletinsky, M.
Kroner, J. Dreiser, I. Carusotto, A. Badolato, D. Schuh, W. Wegscheider, M.
Atature, and A. Imamoglu
|
Confluence of resonant laser excitation and bi-directional quantum dot
nuclear spin polarization
| null | null |
10.1038/nphys1363
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Resonant laser scattering along with photon correlation measurements have
established the atom-like character of quantum dots. Here, we present
measurements which challenge this identification for a wide range of
experimental parameters: the absorption lineshapes that we measure at magnetic
fields exceeding 1 Tesla indicate that the nuclear spins polarize by an amount
that ensures locking of the quantum dot resonances to the incident laser
frequency. In contrast to earlier experiments, this nuclear spin polarization
is bi-directional, allowing the electron+nuclear spin system to track the
changes in laser frequency dynamically on both sides of the quantum dot
resonance. Our measurements reveal that the confluence of the laser excitation
and nuclear spin polarization suppresses the fluctuations in the resonant
absorption signal. A master equation analysis shows narrowing of the nuclear
Overhauser field variance, pointing to potential applications in quantum
information processing.
|
[{'version': 'v1', 'created': 'Thu, 30 Apr 2009 09:15:15 GMT'}]
|
2015-05-13
|
[array(['Latta', 'C.', ''], dtype=object)
array(['Högele', 'A.', ''], dtype=object)
array(['Zhao', 'Y.', ''], dtype=object)
array(['Vamivakas', 'A. N.', ''], dtype=object)
array(['Maletinsky', 'P.', ''], dtype=object)
array(['Kroner', 'M.', ''], dtype=object)
array(['Dreiser', 'J.', ''], dtype=object)
array(['Carusotto', 'I.', ''], dtype=object)
array(['Badolato', 'A.', ''], dtype=object)
array(['Schuh', 'D.', ''], dtype=object)
array(['Wegscheider', 'W.', ''], dtype=object)
array(['Atature', 'M.', ''], dtype=object)
array(['Imamoglu', 'A.', ''], dtype=object)]
|
3,118 |
2306.10701
|
Shijie Rao
|
Kaiyu Cui, Shijie Rao, Sheng Xu, Yidong Huang, Jiawei Yang, Jian
Xiong, Chenxuan Wang, Xue Feng, Fang Liu, Wei Zhang, Yali Li, and Shengjin
Wang
|
Metasurface-based Spectral Convolutional Neural Network for Matter
Meta-imaging
| null | null | null | null |
physics.optics cs.ET
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Convolutional neural networks (CNNs) are representative models of artificial
neural networks (ANNs), that form the backbone of modern computer vision.
However, the considerable power consumption and limited computing speed of
electrical computing platforms restrict further development of CNNs. Optical
neural networks are considered the next-generation physical implementations of
ANNs to break the bottleneck. This study proposes a spectral convolutional
neural network (SCNN) with the function of matter meta-imaging, namely
identifying the composition of matter and mapping its distribution in space.
This SCNN includes an optical convolutional layer (OCL) and a reconfigurable
electrical backend. The OCL is implemented by integrating very large-scale,
pixel-aligned metasurfaces on a CMOS image sensor, which accepts 3D raw
datacubes of natural images, containing two-spatial and one-spectral
dimensions, at megapixels directly as input to realize the matter meta-imaging.
This unique optoelectronic framework empowers in-sensor optical analog
computing at extremely high energy efficiency eliminating the need for coherent
light sources and greatly reducing the computing load of the electrical
backend. We employed the SCNN framework on several real-world complex tasks. It
achieved accuracies of 96.4% and 100% for pathological diagnosis and real-time
face anti-spoofing at video rate, respectively. The SCNN framework, with an
unprecedented new function of substance identification, provides a feasible
optoelectronic and integrated optical CNN implementation for edge devices or
cellphones with limited computing capabilities, facilitating diverse
applications, such as intelligent robotics, industrial automation, medical
diagnosis, and astronomy.
|
[{'version': 'v1', 'created': 'Mon, 19 Jun 2023 05:01:07 GMT'}
{'version': 'v2', 'created': 'Tue, 27 Jun 2023 12:16:44 GMT'}]
|
2023-06-28
|
[array(['Cui', 'Kaiyu', ''], dtype=object)
array(['Rao', 'Shijie', ''], dtype=object)
array(['Xu', 'Sheng', ''], dtype=object)
array(['Huang', 'Yidong', ''], dtype=object)
array(['Yang', 'Jiawei', ''], dtype=object)
array(['Xiong', 'Jian', ''], dtype=object)
array(['Wang', 'Chenxuan', ''], dtype=object)
array(['Feng', 'Xue', ''], dtype=object)
array(['Liu', 'Fang', ''], dtype=object)
array(['Zhang', 'Wei', ''], dtype=object)
array(['Li', 'Yali', ''], dtype=object)
array(['Wang', 'Shengjin', ''], dtype=object)]
|
3,119 |
1406.3075
|
Istvan Kiss Z
|
David Juher, Istvan Z. Kiss, Joan Saldana
|
Analysis of an epidemic model with awareness decay on regular random
networks
| null |
Journal of Theoretical Biology, 365 (2015): 457-468
|
10.1016/j.jtbi.2014.10.013
| null |
q-bio.QM math.DS nlin.AO q-bio.PE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The existence of a die-out threshold (different from the classic
disease-invasion one) defining a region of slow extinction of an epidemic has
been proved elsewhere for susceptible-aware-infectious-susceptible models
without awareness decay, through bifurcation analysis. By means of an
equivalent mean-field model defined on regular random networks, we interpret
the dynamics of the system in this region and prove that the existence of
bifurcation for this second epidemic threshold crucially depends on the absence
of awareness decay. We show that the continuum of equilibria that characterizes
the slow die-out dynamics collapses into a unique equilibrium when a constant
rate of awareness decay is assumed, no matter how small, and that the resulting
bifurcation from the disease-free equilibrium is equivalent to that of standard
epidemic models. We illustrate these findings with continuous-time stochastic
simulations on regular random networks with different degrees. Finally, the
behaviour of solutions with and without decay in awareness is compared around
the second epidemic threshold for a small rate of awareness decay.
|
[{'version': 'v1', 'created': 'Wed, 11 Jun 2014 22:01:20 GMT'}
{'version': 'v2', 'created': 'Wed, 17 Dec 2014 13:47:20 GMT'}]
|
2016-10-19
|
[array(['Juher', 'David', ''], dtype=object)
array(['Kiss', 'Istvan Z.', ''], dtype=object)
array(['Saldana', 'Joan', ''], dtype=object)]
|
3,120 |
1502.00608
|
Christopher Sheehy
|
BICEP2 Collaboration: P. A. R. Ade, R. W. Aikin, D. Barkats, S. J.
Benton, C. A. Bischoff, J. J. Bock, J. A. Brevik, I. Buder, E. Bullock, C. D.
Dowell, L. Duband, J. P. Filippini, S. Fliescher, S. R. Golwala, M. Halpern,
M. Hasselfield, S. R. Hildebrandt, G. C. Hilton, K. D. Irwin, K. S. Karkare,
J. P. Kaufman, B. G. Keating, S. A. Kernasovskiy, J. M. Kovac, C. L. Kuo, E.
M. Leitch, M. Lueker, C. B. Netterfield, H. T. Nguyen, R. O'Brient, R. W.
Ogburn IV, A. Orlando, C. Pryke, S. Richter, R. Schwarz, C. D. Sheehy, Z. K.
Staniszewski, R. V. Sudiwala, G. P. Teply, J. E. Tolan, A. D. Turner, A. G.
Vieregg, C. L. Wong, K. W. Yoon
|
BICEP2 III: Instrumental Systematics
|
26 pages, 16 figures, higher quality figures available at
http://bicepkeck.org
|
The Astrophysical Journal, Volume 814, Issue 2, article id. 110,
28 pp. (2015)
|
10.1088/0004-637X/814/2/110
| null |
astro-ph.IM astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In a companion paper we have reported a $>5\sigma$ detection of degree scale
$B $-mode polarization at 150 GHz by the BICEP2 experiment. Here we provide a
detailed study of potential instrumental systematic contamination to that
measurement. We focus extensively on spurious polarization that can potentially
arise from beam imperfections. We present a heuristic classification of beam
imperfections according to their symmetries and uniformities, and discuss how
resulting contamination adds or cancels in maps that combine observations made
at multiple orientations of the telescope about its boresight axis. We
introduce a technique, which we call "deprojection", for filtering the leading
order beam-induced contamination from time ordered data, and show that it
removes power from BICEP2's $BB$ spectrum consistent with predictions using
high signal-to-noise beam shape measurements. We detail the simulation pipeline
that we use to directly simulate instrumental systematics and the calibration
data used as input to that pipeline. Finally, we present the constraints on
$BB$ contamination from individual sources of potential systematics. We find
that systematics contribute $BB$ power that is a factor $\sim10\times$ below
BICEP2's 3-year statistical uncertainty, and negligible compared to the
observed $BB$ signal. The contribution to the best-fit tensor/scalar ratio is
at a level equivalent to $r=(3-6)\times10^{-3}$.
|
[{'version': 'v1', 'created': 'Mon, 2 Feb 2015 20:17:39 GMT'}
{'version': 'v2', 'created': 'Mon, 14 Dec 2015 23:57:45 GMT'}]
|
2016-01-11
|
[array(['BICEP2 Collaboration', '', ''], dtype=object)
array(['Ade', 'P. A. R.', ''], dtype=object)
array(['Aikin', 'R. W.', ''], dtype=object)
array(['Barkats', 'D.', ''], dtype=object)
array(['Benton', 'S. J.', ''], dtype=object)
array(['Bischoff', 'C. A.', ''], dtype=object)
array(['Bock', 'J. J.', ''], dtype=object)
array(['Brevik', 'J. A.', ''], dtype=object)
array(['Buder', 'I.', ''], dtype=object)
array(['Bullock', 'E.', ''], dtype=object)
array(['Dowell', 'C. D.', ''], dtype=object)
array(['Duband', 'L.', ''], dtype=object)
array(['Filippini', 'J. P.', ''], dtype=object)
array(['Fliescher', 'S.', ''], dtype=object)
array(['Golwala', 'S. R.', ''], dtype=object)
array(['Halpern', 'M.', ''], dtype=object)
array(['Hasselfield', 'M.', ''], dtype=object)
array(['Hildebrandt', 'S. R.', ''], dtype=object)
array(['Hilton', 'G. C.', ''], dtype=object)
array(['Irwin', 'K. D.', ''], dtype=object)
array(['Karkare', 'K. S.', ''], dtype=object)
array(['Kaufman', 'J. P.', ''], dtype=object)
array(['Keating', 'B. G.', ''], dtype=object)
array(['Kernasovskiy', 'S. A.', ''], dtype=object)
array(['Kovac', 'J. M.', ''], dtype=object)
array(['Kuo', 'C. L.', ''], dtype=object)
array(['Leitch', 'E. M.', ''], dtype=object)
array(['Lueker', 'M.', ''], dtype=object)
array(['Netterfield', 'C. B.', ''], dtype=object)
array(['Nguyen', 'H. T.', ''], dtype=object)
array(["O'Brient", 'R.', ''], dtype=object)
array(['Ogburn', 'R. W.', 'IV'], dtype=object)
array(['Orlando', 'A.', ''], dtype=object)
array(['Pryke', 'C.', ''], dtype=object)
array(['Richter', 'S.', ''], dtype=object)
array(['Schwarz', 'R.', ''], dtype=object)
array(['Sheehy', 'C. D.', ''], dtype=object)
array(['Staniszewski', 'Z. K.', ''], dtype=object)
array(['Sudiwala', 'R. V.', ''], dtype=object)
array(['Teply', 'G. P.', ''], dtype=object)
array(['Tolan', 'J. E.', ''], dtype=object)
array(['Turner', 'A. D.', ''], dtype=object)
array(['Vieregg', 'A. G.', ''], dtype=object)
array(['Wong', 'C. L.', ''], dtype=object)
array(['Yoon', 'K. W.', ''], dtype=object)]
|
3,121 |
2205.10396
|
Roberto Petti
|
R. Petti
|
Probing Free Nucleons with (Anti)neutrinos
|
15 pages, 6 figures. Prepared for proceedings of DIS 2022
| null |
10.1016/j.physletb.2022.137469
| null |
hep-ph
|
http://creativecommons.org/licenses/by/4.0/
|
We discuss a method to study free protons and neutrons using $\nu(\bar
\nu)$-hydrogen (H) Charged Current (CC) inelastic interactions, together with
various precision tests of the isospin (charge) symmetry using $\nu$ and $\bar
\nu$ CC interactions on both H and nuclear targets. Probing free nucleons with
(anti)neutrinos provides information about their partonic structure, as well as
a crucial input for the modeling of $\nu(\bar\nu)$-nucleus (A) interactions.
Such measurements can also represent a tool to address some of the limitations
of accelerator-based neutrino scattering experiments on nuclear targets,
originating from the combined effect of the unknown (anti)neutrino energy and
of the nuclear smearing. We also discuss a method to impose constraints on
nuclear effects and calibrate the (anti)neutrino energy scale in $\nu(\bar
\nu)$-A interactions, which are two outstanding systematic uncertainties
affecting present and future long-baseline neutrino experiments.
|
[{'version': 'v1', 'created': 'Thu, 19 May 2022 02:17:53 GMT'}]
|
2022-10-26
|
[array(['Petti', 'R.', ''], dtype=object)]
|
3,122 |
1903.07987
|
O\u{g}uzhan Fatih Kar
|
O\u{g}uzhan Fatih Kar, Figen S. Oktem
|
Compressive Spectral Imaging with Diffractive Lenses
|
4 pages, 4 figures, published in Optics Letters (Vol.44, Issue 18,
pp. 4582-4585 (2019))
|
Opt. Lett. 44, 4582-4585 (2019)
|
10.1364/OL.44.004582
| null |
eess.IV eess.SP physics.optics
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Compressive spectral imaging enables to reconstruct the entire
three-dimensional (3D) spectral cube from a few multiplexed images. Here, we
develop a novel compressive spectral imaging technique using diffractive
lenses. Our technique uses a coded aperture to spatially modulate the optical
field from the scene and a diffractive lens such as a photon-sieve for
dispersion. The coded field is passed through the diffractive lens and then
measured at a few planes using a monochrome detector. The 3D spectral cube is
then reconstructed from these highly compressed measurements through sparse
recovery. A fast sparse recovery method is developed to solve this large-scale
inverse problem. The imaging performance is illustrated at visible regime for
various scenarios with different compression ratios through numerical
simulations. The results demonstrate that promising reconstruction performance
can be achieved with as little as two measurements. This opens up new
possibilities for high resolution spectral imaging with low-cost and simple
designs.
|
[{'version': 'v1', 'created': 'Sat, 16 Mar 2019 18:07:43 GMT'}
{'version': 'v2', 'created': 'Sat, 4 May 2019 12:17:27 GMT'}
{'version': 'v3', 'created': 'Sat, 21 Sep 2019 22:19:18 GMT'}]
|
2019-09-24
|
[array(['Kar', 'Oğuzhan Fatih', ''], dtype=object)
array(['Oktem', 'Figen S.', ''], dtype=object)]
|
3,123 |
1705.09501
|
Scientific Information Service CERN
|
E. Bravin, B. Dehning, R. Jones, T. Lefevre and H. Schmickler
|
Beam Instrumentation and Long-Range Beam-Beam Compensation
|
14 pages, chapter 13 in High-Luminosity Large Hadron Collider
(HL-LHC) : Preliminary Design Report
|
CERN Yellow Report CERN 2015-005, pp. 207-220
|
10.5170/CERN-2015-005.207
| null |
physics.acc-ph
|
http://creativecommons.org/licenses/by/4.0/
|
Chapter 13 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary
Design Report. The Large Hadron Collider (LHC) is one of the largest scientific
instruments ever built. Since opening up a new energy frontier for exploration
in 2010, it has gathered a global user community of about 7,000 scientists
working in fundamental particle physics and the physics of hadronic matter at
extreme temperature and density. To sustain and extend its discovery potential,
the LHC will need a major upgrade in the 2020s. This will increase its
luminosity (rate of collisions) by a factor of five beyond the original design
value and the integrated luminosity (total collisions created) by a factor ten.
The LHC is already a highly complex and exquisitely optimised machine so this
upgrade must be carefully conceived and will require about ten years to
implement. The new configuration, known as High Luminosity LHC (HL-LHC), will
rely on a number of key innovations that push accelerator technology beyond its
present limits. Among these are cutting-edge 11-12 tesla superconducting
magnets, compact superconducting cavities for beam rotation with ultra-precise
phase control, new technology and physical processes for beam collimation and
300 metre-long high-power superconducting links with negligible energy
dissipation. The present document describes the technologies and components
that will be used to realise the project and is intended to serve as the basis
for the detailed engineering design of HL-LHC.
|
[{'version': 'v1', 'created': 'Fri, 26 May 2017 09:38:30 GMT'}]
|
2017-05-31
|
[array(['Bravin', 'E.', ''], dtype=object)
array(['Dehning', 'B.', ''], dtype=object)
array(['Jones', 'R.', ''], dtype=object)
array(['Lefevre', 'T.', ''], dtype=object)
array(['Schmickler', 'H.', ''], dtype=object)]
|
3,124 |
astro-ph/9803263
|
Cole Miller
|
Frederick K. Lamb, M. Coleman Miller, and Dimitrios Psaltis
|
The Origin of Kilohertz QPOs and Implications for Neutron Stars
|
8 pages LaTeX including four figures, uses neu.sty, tron.sty
(included), invited review at "Neutron Stars and Pulsars: Thirty Years After
the Discovery"
| null | null | null |
astro-ph
| null |
One of the most dramatic discoveries made with the Rossi X-Ray Timing
Explorer is that many accreting neutron stars in low-mass binary systems
produce strong, remarkably coherent, high-frequency X-ray brightness
oscillations. The 325-1200 Hz quasi-periodic oscillations (QPOs) observed in
the accretion-powered emission are thought to be produced by gas orbiting very
close to the neutron star, whereas the 360-600 Hz brightness oscillations seen
during thermonuclear X-ray bursts are produced by one or two hot spots rotating
with the star and have frequencies equal to the stellar spin frequency or its
first overtone. The oscillations constrain the masses and radii of these
neutron stars, which are thought to be the progenitors of the millisecond
pulsars. Modeling indicates that the stars have spin frequencies 250-350 Hz and
magnetic fields 1e7-5e9 G.
|
[{'version': 'v1', 'created': 'Mon, 23 Mar 1998 13:21:20 GMT'}]
|
2007-05-23
|
[array(['Lamb', 'Frederick K.', ''], dtype=object)
array(['Miller', 'M. Coleman', ''], dtype=object)
array(['Psaltis', 'Dimitrios', ''], dtype=object)]
|
3,125 |
2004.14501
|
Sayak Mukherjee
|
Sayak Mukherjee, He Bai, Aranya Chakrabortty
|
Reduced-Dimensional Reinforcement Learning Control using Singular
Perturbation Approximations
| null |
Automatica 2021 (full version with proofs)
|
10.1016/j.automatica.2020.109451
| null |
eess.SY cs.LG cs.SY
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a set of model-free, reduced-dimensional reinforcement learning
(RL) based optimal control designs for linear time-invariant singularly
perturbed (SP) systems. We first present a state-feedback and output-feedback
based RL control design for a generic SP system with unknown state and input
matrices. We take advantage of the underlying time-scale separation property of
the plant to learn a linear quadratic regulator (LQR) for only its slow
dynamics, thereby saving a significant amount of learning time compared to the
conventional full-dimensional RL controller. We analyze the sub-optimality of
the design using SP approximation theorems and provide sufficient conditions
for closed-loop stability. Thereafter, we extend both designs to clustered
multi-agent consensus networks, where the SP property reflects through
clustering. We develop both centralized and cluster-wise block-decentralized RL
controllers for such networks, in reduced dimensions. We demonstrate the
details of the implementation of these controllers using simulations of
relevant numerical examples and compare them with conventional RL designs to
show the computational benefits of our approach.
|
[{'version': 'v1', 'created': 'Wed, 29 Apr 2020 22:15:54 GMT'}]
|
2021-02-08
|
[array(['Mukherjee', 'Sayak', ''], dtype=object)
array(['Bai', 'He', ''], dtype=object)
array(['Chakrabortty', 'Aranya', ''], dtype=object)]
|
3,126 |
1102.4007
|
Nicolas Quesada
|
Paulo C. C\'ardenas, Nicol\'as Quesada, Herbert Vinck-Posada and Boris
A. Rodr\'iguez
|
Strong coupling of two interacting excitons confined in a
nanocavity-quantum-dot system
| null | null |
10.1088/0953-8984/23/26/265304
| null |
cond-mat.str-el cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a study of the strong coupling between radiation and matter,
considering a system of two quantum dots, which are in mutual interaction and
interacting with a single mode of light confined in a semiconductor nanocavity.
We take into account dissipative mechanisms such as the escape of the cavity
photons, decay of the quantum dot excitons by spontaneous emission, and
independent exciton pumping. It is shown that the mutual interaction between
the dots can be measured off-resonance, only if the strong coupling condition
is reached. Using the quantum regression theorem, a reasonable definition of
the dynamical coupling regimes is introduced in terms of the complex Rabi
frequency. Finally, the emission spectrum for relevant conditions is presented
and compared with the above definition, demonstrating that the interaction
between the excitons does not affect the Strong Coupling.
|
[{'version': 'v1', 'created': 'Sat, 19 Feb 2011 17:20:30 GMT'}
{'version': 'v2', 'created': 'Sat, 30 Apr 2011 22:44:01 GMT'}]
|
2015-05-27
|
[array(['Cárdenas', 'Paulo C.', ''], dtype=object)
array(['Quesada', 'Nicolás', ''], dtype=object)
array(['Vinck-Posada', 'Herbert', ''], dtype=object)
array(['Rodríguez', 'Boris A.', ''], dtype=object)]
|
3,127 |
1603.05830
|
Giancarlo Rossi
|
Giancarlo Rossi and Gabriele Veneziano
|
The string-junction picture of multiquark states: an update
|
37 pages, 18 figures Some clarifications and several new references
added
| null |
10.1007/JHEP06(2016)041
| null |
hep-th hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We recall and update, both theoretically and phenomenologically, our (nearly)
forty-years-old proposal of a string-junction as a necessary complement to the
conventional classification of hadrons based just on their quark-antiquark
constituents. In that proposal single (though in general metastable) hadronic
states are associated with "irreducible" gauge-invariant operators consisting
of Wilson lines (visualized as strings of color flux tubes) that may either end
on a quark or an antiquark, or annihilate in triplets at a junction $J$ or an
anti-junction $\bar{J}$. For the junction-free sector (ordinary $q\, \bar{q}$
mesons and glueballs) the picture is supported by large-$N$ (number of colors)
considerations as well as by a lattice strong-coupling expansion. Both imply
the famous OZI rule suppressing quark-antiquark annihilation diagrams. For
hadrons with $J$ and/or $\bar{J}$ constituents the same expansions support our
proposal, including its generalization of the OZI rule to the suppression of
$J-\bar{J}$ annihilation diagrams. Such a rule implies that hadrons with
junctions are "mesophobic" and thus unusually narrow if they are below
threshold for decaying into as many baryons as their total number of junctions
(two for a tetraquark, three for a pentaquark). Experimental support for our
claim, based on the observation that narrow multiquark states typically lie
below (well above) the relevant baryonic (mesonic) thresholds, will be
presented.
|
[{'version': 'v1', 'created': 'Fri, 18 Mar 2016 10:54:15 GMT'}
{'version': 'v2', 'created': 'Tue, 5 Apr 2016 14:01:42 GMT'}]
|
2016-06-29
|
[array(['Rossi', 'Giancarlo', ''], dtype=object)
array(['Veneziano', 'Gabriele', ''], dtype=object)]
|
3,128 |
1906.01274
|
Chia-Fu Yu
|
Chia-Fu Yu
|
Chow's theorem for semi-abelian varieties and bounds for splitting
fields of algebraic tori
|
14 pages, to appear in Acta Math. Sinica
| null | null | null |
math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A theorem of Chow concerns homomorphisms of two abelian varieties under a
primary field extension base change. In this paper we generalize Chow's theorem
to semi-abelian varieties. This contributes to different proofs of a well-known
result that every algebraic torus splits over a finite separable field
extension. We also obtain the best bound for the degrees of splitting fields of
tori.
|
[{'version': 'v1', 'created': 'Tue, 4 Jun 2019 08:52:09 GMT'}]
|
2019-06-05
|
[array(['Yu', 'Chia-Fu', ''], dtype=object)]
|
3,129 |
2105.01984
|
Silverio Mart\'inez-Fern\'andez
|
Silverio Mart\'inez-Fern\'andez, Justus Bogner, Xavier Franch, Marc
Oriol, Julien Siebert, Adam Trendowicz, Anna Maria Vollmer, Stefan Wagner
|
Software Engineering for AI-Based Systems: A Survey
|
Accepted in ACM Transactions on Software Engineering and Methodology
(TOSEM). For its published version refer to the Journal of ACM TOSEM
|
ACM Trans. Softw. Eng. Methodol. 31, 2, Article 37e (March 2022),
59 pages
|
10.1145/3487043
| null |
cs.SE cs.AI cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
AI-based systems are software systems with functionalities enabled by at
least one AI component (e.g., for image- and speech-recognition, and autonomous
driving). AI-based systems are becoming pervasive in society due to advances in
AI. However, there is limited synthesized knowledge on Software Engineering
(SE) approaches for building, operating, and maintaining AI-based systems. To
collect and analyze state-of-the-art knowledge about SE for AI-based systems,
we conducted a systematic mapping study. We considered 248 studies published
between January 2010 and March 2020. SE for AI-based systems is an emerging
research area, where more than 2/3 of the studies have been published since
2018. The most studied properties of AI-based systems are dependability and
safety. We identified multiple SE approaches for AI-based systems, which we
classified according to the SWEBOK areas. Studies related to software testing
and software quality are very prevalent, while areas like software maintenance
seem neglected. Data-related issues are the most recurrent challenges. Our
results are valuable for: researchers, to quickly understand the state of the
art and learn which topics need more research; practitioners, to learn about
the approaches and challenges that SE entails for AI-based systems; and,
educators, to bridge the gap among SE and AI in their curricula.
|
[{'version': 'v1', 'created': 'Wed, 5 May 2021 11:22:08 GMT'}
{'version': 'v2', 'created': 'Thu, 2 Sep 2021 09:39:59 GMT'}]
|
2022-04-05
|
[array(['Martínez-Fernández', 'Silverio', ''], dtype=object)
array(['Bogner', 'Justus', ''], dtype=object)
array(['Franch', 'Xavier', ''], dtype=object)
array(['Oriol', 'Marc', ''], dtype=object)
array(['Siebert', 'Julien', ''], dtype=object)
array(['Trendowicz', 'Adam', ''], dtype=object)
array(['Vollmer', 'Anna Maria', ''], dtype=object)
array(['Wagner', 'Stefan', ''], dtype=object)]
|
3,130 |
1910.04985
|
Guoli Wang
|
Mengjia Yan, Mengao Zhao, Zining Xu, Qian Zhang, Guoli Wang, Zhizhong
Su
|
VarGFaceNet: An Efficient Variable Group Convolutional Neural Network
for Lightweight Face Recognition
|
8 pages,2 figures. In Proceedings of the IEEE International
Conference on Computer Vision Workshop, 2019
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
To improve the discriminative and generalization ability of lightweight
network for face recognition, we propose an efficient variable group
convolutional network called VarGFaceNet. Variable group convolution is
introduced by VarGNet to solve the conflict between small computational cost
and the unbalance of computational intensity inside a block. We employ variable
group convolution to design our network which can support large scale face
identification while reduce computational cost and parameters. Specifically, we
use a head setting to reserve essential information at the start of the network
and propose a particular embedding setting to reduce parameters of
fully-connected layer for embedding. To enhance interpretation ability, we
employ an equivalence of angular distillation loss to guide our lightweight
network and we apply recursive knowledge distillation to relieve the
discrepancy between the teacher model and the student model. The champion of
deepglint-light track of LFR (2019) challenge demonstrates the effectiveness of
our model and approach. Implementation of VarGFaceNet will be released at
https://github.com/zma-c-137/VarGFaceNet soon.
|
[{'version': 'v1', 'created': 'Fri, 11 Oct 2019 06:16:09 GMT'}
{'version': 'v2', 'created': 'Mon, 21 Oct 2019 07:06:54 GMT'}
{'version': 'v3', 'created': 'Thu, 24 Oct 2019 12:30:31 GMT'}
{'version': 'v4', 'created': 'Sun, 24 Nov 2019 09:24:06 GMT'}]
|
2019-11-26
|
[array(['Yan', 'Mengjia', ''], dtype=object)
array(['Zhao', 'Mengao', ''], dtype=object)
array(['Xu', 'Zining', ''], dtype=object)
array(['Zhang', 'Qian', ''], dtype=object)
array(['Wang', 'Guoli', ''], dtype=object)
array(['Su', 'Zhizhong', ''], dtype=object)]
|
3,131 |
1911.06959
|
Nazgol Tavabi
|
Nazgol Tavabi, Homa Hosseinmardi, Jennifer L. Villatte, Andr\'es
Abeliuk, Shrikanth Narayanan, Emilio Ferrara, Kristina Lerman
|
Learning Behavioral Representations from Wearable Sensors
| null | null | null | null |
cs.LG eess.SP stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Continuous collection of physiological data from wearable sensors enables
temporal characterization of individual behaviors. Understanding the relation
between an individual's behavioral patterns and psychological states can help
identify strategies to improve quality of life. One challenge in analyzing
physiological data is extracting the underlying behavioral states from the
temporal sensor signals and interpreting them. Here, we use a non-parametric
Bayesian approach to model sensor data from multiple people and discover the
dynamic behaviors they share. We apply this method to data collected from
sensors worn by a population of hospital workers and show that the learned
states can cluster participants into meaningful groups and better predict their
cognitive and psychological states. This method offers a way to learn
interpretable compact behavioral representations from multivariate sensor
signals.
|
[{'version': 'v1', 'created': 'Sat, 16 Nov 2019 05:21:55 GMT'}
{'version': 'v2', 'created': 'Sat, 4 Jul 2020 20:52:20 GMT'}]
|
2020-07-07
|
[array(['Tavabi', 'Nazgol', ''], dtype=object)
array(['Hosseinmardi', 'Homa', ''], dtype=object)
array(['Villatte', 'Jennifer L.', ''], dtype=object)
array(['Abeliuk', 'Andrés', ''], dtype=object)
array(['Narayanan', 'Shrikanth', ''], dtype=object)
array(['Ferrara', 'Emilio', ''], dtype=object)
array(['Lerman', 'Kristina', ''], dtype=object)]
|
3,132 |
2005.13780
|
Dharani Punithan
|
Dharani Punithan and Byoung-Tak Zhang
|
Pattern Denoising in Molecular Associative Memory using Pairwise Markov
Random Field Models
| null | null | null | null |
cs.ET cs.NE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We propose an in silico molecular associative memory model for pattern
learning, storage and denoising using Pairwise Markov Random Field (PMRF)
model. Our PMRF-based molecular associative memory model extracts locally
distributed features from the exposed examples, learns and stores the patterns
in the molecular associative memory and denoises the given noisy patterns via
DNA computation based operations. Thus, our computational molecular model
demonstrates the functionalities of content-addressability of human memory. Our
molecular simulation results show that the averaged mean squared error between
the learned and denoised patterns are low (< 0.014) up to 30% of noise.
|
[{'version': 'v1', 'created': 'Thu, 28 May 2020 05:14:08 GMT'}
{'version': 'v2', 'created': 'Fri, 29 May 2020 13:23:16 GMT'}
{'version': 'v3', 'created': 'Thu, 4 Jun 2020 10:40:18 GMT'}
{'version': 'v4', 'created': 'Wed, 17 Jun 2020 06:09:51 GMT'}]
|
2020-06-18
|
[array(['Punithan', 'Dharani', ''], dtype=object)
array(['Zhang', 'Byoung-Tak', ''], dtype=object)]
|
3,133 |
2106.15842
|
Wen Song
|
Zhizheng Zhang, Wen Song, Qiqiang Li
|
Dual Aspect Self-Attention based on Transformer for Remaining Useful
Life Prediction
| null | null |
10.1109/TIM.2022.3160561
| null |
eess.SP cs.AI cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Remaining useful life prediction (RUL) is one of the key technologies of
condition-based maintenance, which is important to maintain the reliability and
safety of industrial equipments. Massive industrial measurement data has
effectively improved the performance of the data-driven based RUL prediction
method. While deep learning has achieved great success in RUL prediction,
existing methods have difficulties in processing long sequences and extracting
information from the sensor and time step aspects. In this paper, we propose
Dual Aspect Self-attention based on Transformer (DAST), a novel deep RUL
prediction method, which is an encoder-decoder structure purely based on
self-attention without any RNN/CNN module. DAST consists of two encoders, which
work in parallel to simultaneously extract features of different sensors and
time steps. Solely based on self-attention, the DAST encoders are more
effective in processing long data sequences, and are capable of adaptively
learning to focus on more important parts of input. Moreover, the parallel
feature extraction design avoids mutual influence of information from two
aspects. Experiments on two widely used turbofan engines datasets show that our
method significantly outperforms the state-of-the-art RUL prediction methods.
|
[{'version': 'v1', 'created': 'Wed, 30 Jun 2021 06:54:59 GMT'}
{'version': 'v2', 'created': 'Wed, 27 Oct 2021 07:31:26 GMT'}
{'version': 'v3', 'created': 'Wed, 20 Apr 2022 07:12:06 GMT'}]
|
2022-04-21
|
[array(['Zhang', 'Zhizheng', ''], dtype=object)
array(['Song', 'Wen', ''], dtype=object)
array(['Li', 'Qiqiang', ''], dtype=object)]
|
3,134 |
2111.04830
|
Chen Liang
|
Chen Liang, Nahyun Kwon, Jeeeun Kim
|
Creative Compensation (CC): Future of Jobs with Creative Works in 3D
Printing
| null | null | null | null |
cs.HC
|
http://creativecommons.org/licenses/by/4.0/
|
With the continuous growth of online 3D printing community and the
democratization of 3D printers, growing number of users start sharing their own
3D designs on open platforms, enabling a wide audience to search, download, and
3D print models for free. Although sharing is mostly for altruistic reasons at
first, open platforms had also created potential job opportunities to
compensate creative labors. This paper analyzes new job opportunities emerged
in online 3D printing social platforms and patterns of seeking compensations,
and reveals various motivations for posting creative content online. We find
that offering exclusive membership through subscriptions, selling final
products or printing services through web stores, and using affiliate links are
primary means of earning profits, while there exist gaps between creators'
expectations and realities. We show that various socio-economic promises
emerged, leading to a win-win situation for both creators to gain extra income
and audiences to have access to more quality content. We also discuss future
challenges that need to be addressed, such as ethical use of opensource
content.
|
[{'version': 'v1', 'created': 'Mon, 8 Nov 2021 21:03:40 GMT'}]
|
2021-11-10
|
[array(['Liang', 'Chen', ''], dtype=object)
array(['Kwon', 'Nahyun', ''], dtype=object)
array(['Kim', 'Jeeeun', ''], dtype=object)]
|
3,135 |
2101.10307
|
Bo Yang
|
Bo Yang, Rudy Raymond, Hiroshi Imai, Hyungseok Chang, and Hidefumi
Hiraishi
|
Testing Scalable Bell Inequalities for Quantum Graph States on IBM
Quantum Devices
| null | null | null | null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Testing and verifying imperfect multi-qubit quantum devices are important as
such noisy quantum devices are widely available today. Bell inequalities are
known useful for testing and verifying the quality of the quantum devices from
their nonlocal quantum states and local measurements. There have been many
experiments demonstrating the violations of Bell inequalities but they are
limited in the number of qubits and the types of quantum states. We report
violations of Bell inequalities on IBM Quantum devices based on the scalable
and robust inequalities maximally violated by graph states as proposed by
Baccari et al. (Ref.[1]). The violations are obtained from the quantum states
of path graphs up to 57 and 21 qubits on the 65-qubit and 27-qubit IBM Quantum
devices, respectively, and from those of star graphs up to 8 and 7 qubits with
error mitigation on the same devices. We are able to show violations of the
inequalities on various graph states by constructing low-depth quantum circuits
producing them, and by applying the readout error mitigation technique. We also
point out that quantum circuits for star graph states of size N can be realized
with circuits of depth $O(\sqrt n)$ on subdivided honeycomb lattices which are
the topology of the 65-qubit IBM Quantum device. Our experiments show
encouraging results on the ability of existing quantum devices to prepare
entangled quantum states, and provide experimental evidences on the benefit of
scalable Bell inequalities for testing them.
|
[{'version': 'v1', 'created': 'Mon, 25 Jan 2021 18:46:19 GMT'}]
|
2021-01-26
|
[array(['Yang', 'Bo', ''], dtype=object)
array(['Raymond', 'Rudy', ''], dtype=object)
array(['Imai', 'Hiroshi', ''], dtype=object)
array(['Chang', 'Hyungseok', ''], dtype=object)
array(['Hiraishi', 'Hidefumi', ''], dtype=object)]
|
3,136 |
1809.05112
|
Christian Sahlholdt
|
Christian L. Sahlholdt and Victor Silva Aguirre
|
Asteroseismic radii of dwarfs: New accuracy constraints from Gaia DR2
parallaxes
|
5 pages, 4 figures, MNRAS Letter
| null |
10.1093/mnrasl/sly173
| null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Precise stellar masses and radii can be determined using asteroseismology,
but their accuracy must be tested against independent estimates. Using radii
derived from Gaia DR2 parallaxes, we test the accuracy of asteroseismic radii
for a sample of 93 dwarfs based on both individual frequency fitting and the
seismic scaling relations. Radii from frequency fitting are about 1 per cent
smaller than Gaia radii on average; however, this difference may be explained
by a negative bias of 30 $\mu$as in the Gaia parallaxes. This indicates that
the radii derived from frequency fitting are accurate to within 1 per cent. The
scaling relations are found to overestimate radii by more than 5 per cent,
compared to the Gaia radii, at the highest temperatures. We demonstrate that
this offset is reduced to 3 per cent after applying corrections based on model
frequencies to the scaling relation for $\Delta\nu$, but only when the model
frequencies are corrected for the surface effect. With corrections to
$\Delta\nu$, the scaling relation gives radii accurate to about 2--3 per cent
for dwarfs in the temperature range $5400$--$6700$ K. The remaining offset at
the highest temperatures may indicate the need for a correction to the scaling
relation for $\nu_{\mathrm{max}}$.
|
[{'version': 'v1', 'created': 'Thu, 13 Sep 2018 18:01:17 GMT'}]
|
2018-09-26
|
[array(['Sahlholdt', 'Christian L.', ''], dtype=object)
array(['Aguirre', 'Victor Silva', ''], dtype=object)]
|
3,137 |
1708.01848
|
David Kalaj
|
David Kalaj
|
Minimal surfaces and Schwarz lemma
|
6 pages
| null | null | null |
math.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove a sharp Schwarz type inequality for the Weierstrass- Enneper
representation of the minimal surfaces. It states the following. If
$F:\mathbf{D}\to \Sigma$ is a conformal harmonic parameterization of a minimal
disk $\Sigma$, where $\mathbf{D}$ is the unit disk and $|\Sigma|=\pi R^2$, then
$|F_x(z)|(1-|z|^2)\le R$. If for some $z$ the previous inequality is equality,
then the surface is an affine disk, and $F$ is linear up to a M\"obius
transformation of the unit disk.
|
[{'version': 'v1', 'created': 'Sun, 6 Aug 2017 05:25:39 GMT'}
{'version': 'v2', 'created': 'Mon, 4 Jul 2022 09:19:16 GMT'}]
|
2022-07-05
|
[array(['Kalaj', 'David', ''], dtype=object)]
|
3,138 |
2304.09442
|
Marko Jusup
|
Hirotaka Ijima and Marko Jusup
|
Tuna and billfish larval distributions in a warming ocean
|
26 pages, 1 table, 6 figures
| null | null | null |
physics.ao-ph q-bio.PE
|
http://creativecommons.org/licenses/by/4.0/
|
Tuna and billfish are charismatic pelagic fishes attracting considerable
scientific attention due to their ecophysiological and socioeconomic
importance. However, the knowledge of their basin-wide spawning and larval
habitats, especially in a warming ocean, is limited. We use the largest
available dataset on tuna and billfish larvae in the Pacific Ocean to build a
geostatistical species-distribution model with high explanatory power. The
results reveal the spatial distribution of tuna and billfish larvae through all
seasons across the Pacific. The model also identifies the optimal temperature
ranges for nine major species and assesses the potential impact of ocean
warming on larval distributions. We additionally present evidence that
environmental variables, such as pH, phosphate concentration, and sea-surface
height, exert secondary effects on larval distributions that warrant further
investigation. Our findings make a quantum leap in understanding the
ecophysiology of tuna and billfish, providing valuable information for future
conservation efforts.
|
[{'version': 'v1', 'created': 'Wed, 19 Apr 2023 06:18:41 GMT'}]
|
2023-04-20
|
[array(['Ijima', 'Hirotaka', ''], dtype=object)
array(['Jusup', 'Marko', ''], dtype=object)]
|
3,139 |
2202.06205
|
Toby Jia-Jun Li
|
Zheng Zhang, Ying Xu, Yanhao Wang, Bingsheng Yao, Daniel Ritchie,
Tongshuang Wu, Mo Yu, Dakuo Wang, Toby Jia-Jun Li
|
StoryBuddy: A Human-AI Collaborative Chatbot for Parent-Child
Interactive Storytelling with Flexible Parental Involvement
|
Published at CHI 2022
| null |
10.1145/3491102.3517479
| null |
cs.HC cs.AI cs.CL cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
Despite its benefits for children's skill development and parent-child
bonding, many parents do not often engage in interactive storytelling by having
story-related dialogues with their child due to limited availability or
challenges in coming up with appropriate questions. While recent advances made
AI generation of questions from stories possible, the fully-automated approach
excludes parent involvement, disregards educational goals, and underoptimizes
for child engagement. Informed by need-finding interviews and participatory
design (PD) results, we developed StoryBuddy, an AI-enabled system for parents
to create interactive storytelling experiences. StoryBuddy's design highlighted
the need for accommodating dynamic user needs between the desire for parent
involvement and parent-child bonding and the goal of minimizing parent
intervention when busy. The PD revealed varied assessment and educational goals
of parents, which StoryBuddy addressed by supporting configuring question types
and tracking child progress. A user study validated StoryBuddy's usability and
suggested design insights for future parent-AI collaboration systems.
|
[{'version': 'v1', 'created': 'Sun, 13 Feb 2022 04:53:28 GMT'}
{'version': 'v2', 'created': 'Mon, 14 Mar 2022 18:36:00 GMT'}]
|
2022-03-16
|
[array(['Zhang', 'Zheng', ''], dtype=object)
array(['Xu', 'Ying', ''], dtype=object)
array(['Wang', 'Yanhao', ''], dtype=object)
array(['Yao', 'Bingsheng', ''], dtype=object)
array(['Ritchie', 'Daniel', ''], dtype=object)
array(['Wu', 'Tongshuang', ''], dtype=object)
array(['Yu', 'Mo', ''], dtype=object)
array(['Wang', 'Dakuo', ''], dtype=object)
array(['Li', 'Toby Jia-Jun', ''], dtype=object)]
|
3,140 |
1805.07778
|
Dachun Yang
|
Ciqiang Zhuo and Dachun Yang
|
Variable Weak Hardy Spaces $W\!H_L^{p(\cdot)}({\mathbb R}^n)$ Associated
with Operators Satisfying Davies-Gaffney Estimates
|
35 pages, Submitted
| null | null | null |
math.CA math.AP math.FA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $p(\cdot):\ \mathbb R^n\to(0,1]$ be a variable exponent function
satisfying the globally log-H\"older continuous condition and $L$ a one to one
operator of type $\omega$ in $L^2({\mathbb R}^n)$, with $\omega\in[0,\,\pi/2)$,
which has a bounded holomorphic functional calculus and satisfies the
Davies-Gaffney estimates. In this article, the authors introduce the variable
weak Hardy space $W\!H_L^{p(\cdot)}(\mathbb R^n)$ associated with $L$ via the
corresponding square function. Its molecular characterization is then
established by means of the atomic decomposition of the variable weak tent
space $W\!T^{p(\cdot)}(\mathbb R^n)$ which is also obtained in this article. In
particular, when $L$ is non-negative and self-adjoint, the authors obtain the
atomic characterization of $W\!H_L^{p(\cdot)}(\mathbb R^n)$. As an application
of the molecular characterization, when $L$ is the second-order divergence form
elliptic operator with complex bounded measurable coefficient, the authors
prove that the associated Riesz transform $\nabla L^{-1/2}$ is bounded from
$W\!H_L^{p(\cdot)}(\mathbb R^n)$ to the variable weak Hardy space
$W\!H^{p(\cdot)}(\mathbb R^n)$. Moreover, when $L$ is non-negative and
self-adjoint with the kernels of $\{e^{-tL}\}_{t>0}$ satisfying the Gauss upper
bound estimates, the atomic characterization of $W\!H_L^{p(\cdot)}(\mathbb
R^n)$ is further used to characterize the space via non-tangential maximal
functions.
|
[{'version': 'v1', 'created': 'Sun, 20 May 2018 15:33:32 GMT'}]
|
2018-05-22
|
[array(['Zhuo', 'Ciqiang', ''], dtype=object)
array(['Yang', 'Dachun', ''], dtype=object)]
|
3,141 |
2011.05370
|
Peter Ondruska
|
Lukas Platinsky, Michal Szabados, Filip Hlasek, Ross Hemsley, Luca Del
Pero, Andrej Pancik, Bryan Baum, Hugo Grimmett, Peter Ondruska
|
Collaborative Augmented Reality on Smartphones via Life-long City-scale
Maps
|
Published at ISMAR 2020, http://www.bluevisionlabs.org
| null | null | null |
cs.CV cs.RO
|
http://creativecommons.org/licenses/by/4.0/
|
In this paper we present the first published end-to-end production
computer-vision system for powering city-scale shared augmented reality
experiences on mobile devices. In doing so we propose a new formulation for an
experience-based mapping framework as an effective solution to the key issues
of city-scale SLAM scalability, robustness, map updates and all-time
all-weather performance required by a production system. Furthermore, we
propose an effective way of synchronising SLAM systems to deliver seamless
real-time localisation of multiple edge devices at the same time. All this in
the presence of network latency and bandwidth limitations. The resulting system
is deployed and tested at scale in San Francisco where it delivers AR
experiences in a mapped area of several hundred kilometers. To foster further
development of this area we offer the data set to the public, constituting the
largest of this kind to date.
|
[{'version': 'v1', 'created': 'Tue, 10 Nov 2020 19:45:06 GMT'}]
|
2020-11-12
|
[array(['Platinsky', 'Lukas', ''], dtype=object)
array(['Szabados', 'Michal', ''], dtype=object)
array(['Hlasek', 'Filip', ''], dtype=object)
array(['Hemsley', 'Ross', ''], dtype=object)
array(['Del Pero', 'Luca', ''], dtype=object)
array(['Pancik', 'Andrej', ''], dtype=object)
array(['Baum', 'Bryan', ''], dtype=object)
array(['Grimmett', 'Hugo', ''], dtype=object)
array(['Ondruska', 'Peter', ''], dtype=object)]
|
3,142 |
astro-ph/0109339
|
Petrucci
|
J. Malzac (1), P.O. Petrucci (1,2) ((1) Osservatorio astronomico di
Brera, Milano, Italy; (2) Lab. d'Astro. de l'Obs. de Grenoble, Grenoble,
France)
|
Reflection at large distance from the central engine in Seyferts
|
Proceeding of the meeting "X-ray emission from accretion onto black
hole" 20-23 June 2001, Hopkins University, Baltimore, USA (style file
jhuwkshp.sty included)
|
Mon.Not.Roy.Astron.Soc. 336 (2002) 1209
|
10.1046/j.1365-8711.2002.05851.x
| null |
astro-ph
| null |
We consider the possibility that most of the reflection component, observed
in the hard X-ray spectra of Seyfert galaxies, could be formed on an extended
medium, at large distance from the central source of primary radiation (e.g. on
a torus). Then, the reflector cannot respond to the rapid fluctuations of the
primary source. The observed reflected flux is controlled by the time-averaged
primary spectrum rather than the instantaneous (observed) one. We show that
this effect strongly influence the spectral fits parameters derived under the
assumption of a reflection component consistent with the primary radiation. We
find that a pivoting primary power-law spectrum with a nearly constant
Comptonised luminosity may account for the reported correlation between the
reflection amplitude $R$ and the spectral index $\Gamma$.
|
[{'version': 'v1', 'created': 'Thu, 20 Sep 2001 12:06:30 GMT'}]
|
2009-11-07
|
[array(['Malzac', 'J.', ''], dtype=object)
array(['Petrucci', 'P. O.', ''], dtype=object)]
|
3,143 |
0811.0085
|
Ioannis Karafyllidis G.
|
Ioannis G. Karafyllidis
|
Definition and evolution of quantum cellular automata with two qubits
per cell
|
13 pages, 4 figures
|
Phys. Rev. A 70, 044301 (2004)
|
10.1103/PhysRevA.70.044301
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Studies of quantum computer implementations suggest cellular quantum computer
architectures. These architectures can simulate the evolution of quantum
cellular automata, which can possibly simulate both quantum and classical
physical systems and processes. It is however known that except for the trivial
case, unitary evolution of one-dimensional homogeneous quantum cellular
automata with one qubit per cell is not possible. Quantum cellular automata
that comprise two qubits per cell are defined and their evolution is studied
using a quantum computer simulator. The evolution is unitary and its linearity
manifests itself as a periodic structure in the probability distribution
patterns.
|
[{'version': 'v1', 'created': 'Sat, 1 Nov 2008 10:41:30 GMT'}]
|
2008-11-04
|
[array(['Karafyllidis', 'Ioannis G.', ''], dtype=object)]
|
3,144 |
1306.6355
|
Piotr Haj{\l}asz
|
Piotr Hajlasz and Jacob Mirra
|
The Lusin theorem and horizontal graphs in the Heisenberg group
| null | null | null | null |
math.FA math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we prove that every collection of measurable functions
$f_\alpha$, $|\alpha|=m$ coincides a.e. with $m$th order derivatives of a
function $g\in C^{m-1}$ whose derivatives of order $m-1$ may have any modulus
of continuity weaker than that of a Lipschitz function. This is a stronger
version of earlier results of Lusin, Moonens-Pfeffer and Francos. As an
application we construct surfaces in the Heisenberg group with tangent spaces
being horizontal a.e.
|
[{'version': 'v1', 'created': 'Wed, 26 Jun 2013 20:34:37 GMT'}]
|
2013-06-28
|
[array(['Hajlasz', 'Piotr', ''], dtype=object)
array(['Mirra', 'Jacob', ''], dtype=object)]
|
3,145 |
1003.3944
|
Guenter Nimtz
|
Guenter Nimtz
|
Tunneling Violates Special Relativity
| null |
Foundations of Physics, 41, 1193-1199 (2011)
|
10.1007/s10701-011-9539-2
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Experiments with evanescent modes and tunneling particles have shown that i)
their signal velocity may be faster than light, ii) they are described by
virtual particles, iii) they are nonlocal and act at a distance, iv)
experimental tunneling data of phonons, photons, and electrons display a
universal scattering time at the tunneling barrier front, and v) the properties
of evanescent, i.e. tunneling modes is not compatible with the special theory
of relativity.
|
[{'version': 'v1', 'created': 'Sat, 20 Mar 2010 18:13:26 GMT'}]
|
2015-05-18
|
[array(['Nimtz', 'Guenter', ''], dtype=object)]
|
3,146 |
0902.2096
|
John Goold
|
J. Goold, Libby Heaney, Th. Busch, V. Vedral
|
Detection and engineering of spatial mode entanglement with ultra-cold
bosons
|
5 pages, 3 figures
|
Phys. Rev. A 80, 022338 (2009)
|
10.1103/PhysRevA.80.022338
| null |
quant-ph cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We outline an interferometric scheme for the detection of bi-mode and
multi-mode spatial entanglement of finite-temperature,interacting Bose gases of
fixed particle number. Whether entanglement is present in the gas depends on
the existence of the single-particle reduced density matrix between different
regions of space. We apply the scheme to the problem of a harmonically trapped
boson pair and show that while entanglement is rapidly decreasing with
temperature, a significant amount remains for all interaction strengths at zero
temperature.Thus, by tuning the interaction parameter, the distribution of
entanglement between many spatial modes can be modified.
|
[{'version': 'v1', 'created': 'Thu, 12 Feb 2009 12:19:29 GMT'}
{'version': 'v2', 'created': 'Wed, 5 Aug 2009 17:50:00 GMT'}]
|
2013-06-18
|
[array(['Goold', 'J.', ''], dtype=object)
array(['Heaney', 'Libby', ''], dtype=object)
array(['Busch', 'Th.', ''], dtype=object)
array(['Vedral', 'V.', ''], dtype=object)]
|
3,147 |
nlin/0601001
|
Folkert Muller-Hoissen
|
Aristophanes Dimakis and Folkert Muller-Hoissen
|
Nonassociativity and Integrable Hierarchies
|
36 pages, second version substantially revised and rewritten
| null | null | null |
nlin.SI hep-th math-ph math.MP
| null |
Let A be a nonassociative algebra such that the associator (A,A^2,A)
vanishes. If A is freely generated by an element f, there are commuting
derivations delta_n, n=1,2,..., such that delta_n(f) is a nonlinear homogeneous
polynomial in f of degree n+1. We prove that the expressions delta_{n_1} ...
delta_{n_k}(f) satisfy identities which are in correspondence with the
equations of the Kadomtsev-Petviashvili (KP) hierarchy. As a consequence,
solutions of the `nonassociative hierarchy' partial_{t_n}(f) = delta_n(f),
n=1,2,..., of ordinary differential equations lead to solutions of the KP
hierarchy. The framework is extended by introducing the notion of an A-module
and constructing, with the help of the derivations delta_n, zero curvature
connections and linear systems.
|
[{'version': 'v1', 'created': 'Sat, 31 Dec 2005 16:18:24 GMT'}
{'version': 'v2', 'created': 'Tue, 13 Jun 2006 20:51:14 GMT'}]
|
2007-05-23
|
[array(['Dimakis', 'Aristophanes', ''], dtype=object)
array(['Muller-Hoissen', 'Folkert', ''], dtype=object)]
|
3,148 |
2002.00991
|
Lu\'is Margato
|
L. M. S. Margato, A. Morozov, A. Blanco, P. Fonte, L. Lopes, K.
Zeitelhack, R. Hall-Wilton, C. H\"oglund, L. Robinson, S. Schmidt and P.
Svensson
|
Multilayer $^{10}B$-RPC neutron imaging detector
| null | null |
10.1088/1748-0221/15/06/P06007
| null |
physics.ins-det
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Resistive plate chambers (RPC) lined with $^{10}B_{4}$C neutron converters is
a promising cost effective technology for position-sensitive thermal neutron
detection capable to outperform $^{3}$He-based detectors in terms of spatial
resolution and timing. However, as for the other types of gaseous detectors
with a single layer of $^{10}B_{4}$C at normal beam incidence, the detection
efficiency to thermal neutrons of a single-gap $^{10}B$-RPC is only about 6%.
Aiming to overcome this limitation, we introduce a multi-layer $^{10}B$-RPCs
detector with a stack of ten double-gap hybrid RPCs. A description of the
detector design and the results of its characterization performed at the TREFF
neutron beamline at the FRM II neutron facility are presented. The results
demonstrate that the detection efficiency exceeds 60% for neutrons with a
wavelength of 4.7 \r{A} and the spatial resolution (FWHM) is about 0.25 mm and
0.35 mm in the X and Y direction, respectively.
|
[{'version': 'v1', 'created': 'Mon, 3 Feb 2020 19:39:19 GMT'}
{'version': 'v2', 'created': 'Tue, 26 May 2020 21:13:46 GMT'}]
|
2020-08-26
|
[array(['Margato', 'L. M. S.', ''], dtype=object)
array(['Morozov', 'A.', ''], dtype=object)
array(['Blanco', 'A.', ''], dtype=object)
array(['Fonte', 'P.', ''], dtype=object)
array(['Lopes', 'L.', ''], dtype=object)
array(['Zeitelhack', 'K.', ''], dtype=object)
array(['Hall-Wilton', 'R.', ''], dtype=object)
array(['Höglund', 'C.', ''], dtype=object)
array(['Robinson', 'L.', ''], dtype=object)
array(['Schmidt', 'S.', ''], dtype=object)
array(['Svensson', 'P.', ''], dtype=object)]
|
3,149 |
1301.1984
|
James Cumming
|
J. B. Cumming
|
Temperature Dependence of Light Absorption by Water
| null | null |
10.1016/j.nima.2013.02.024
| null |
cond-mat.mtrl-sci physics.chem-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A model is described that relates the temperature coefficient of the optical
absorption spectrum of pure water to the frequency derivative of that spectrum
and two parameters that quantify the dependence of a peak's amplitude and its
position on temperature. When applied to experimental temperature coefficients,
it provides a better understanding of the process than the analysis currently
in use.
|
[{'version': 'v1', 'created': 'Wed, 9 Jan 2013 21:00:20 GMT'}]
|
2015-06-12
|
[array(['Cumming', 'J. B.', ''], dtype=object)]
|
3,150 |
1303.0106
|
Elizabeth Wulcan
|
Mats Andersson, H{\aa}kan Samuelsson Kalm, Elizabeth Wulcan, Alain
Yger
|
One parameter regularizations of products of residue currents
|
8 pages
| null | null | null |
math.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that Coleff-Herrera type products of residue currents can be defined
by analytic continuation of natural functions depending on one complex
variable.
|
[{'version': 'v1', 'created': 'Fri, 1 Mar 2013 07:38:44 GMT'}]
|
2013-03-04
|
[array(['Andersson', 'Mats', ''], dtype=object)
array(['Kalm', 'Håkan Samuelsson', ''], dtype=object)
array(['Wulcan', 'Elizabeth', ''], dtype=object)
array(['Yger', 'Alain', ''], dtype=object)]
|
3,151 |
1102.3520
|
Ashot Harutyunyan
|
Naira Grigoryan, Ashot Harutyunyan, Svyatoslav Voloshynovskiy, Oleksiy
Koval
|
On Multiple Hypothesis Testing with Rejection Option
|
5 pages, 3 figures, submitted to IEEE Information Theory Workshop
2011
| null |
10.1109/ITW.2011.6089531
| null |
cs.IT math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the problem of multiple hypothesis testing (HT) in view of a
rejection option. That model of HT has many different applications. Errors in
testing of M hypotheses regarding the source distribution with an option of
rejecting all those hypotheses are considered. The source is discrete and
arbitrarily varying (AVS). The tradeoffs among error probability
exponents/reliabilities associated with false acceptance of rejection decision
and false rejection of true distribution are investigated and the optimal
decision strategies are outlined. The main result is specialized for discrete
memoryless sources (DMS) and studied further. An interesting insight that the
analysis implies is the phenomenon (comprehensible in terms of
supervised/unsupervised learning) that in optimal discrimination within M
hypothetical distributions one permits always lower error than in deciding to
decline the set of hypotheses. Geometric interpretations of the optimal
decision schemes are given for the current and known bounds in multi-HT for
AVS's.
|
[{'version': 'v1', 'created': 'Thu, 17 Feb 2011 08:20:31 GMT'}
{'version': 'v2', 'created': 'Wed, 25 May 2011 14:19:26 GMT'}]
|
2016-11-17
|
[array(['Grigoryan', 'Naira', ''], dtype=object)
array(['Harutyunyan', 'Ashot', ''], dtype=object)
array(['Voloshynovskiy', 'Svyatoslav', ''], dtype=object)
array(['Koval', 'Oleksiy', ''], dtype=object)]
|
3,152 |
1806.00784
|
Te Wu
|
Te Wu, Feng Fu, Long Wang
|
Phenotype affinity mediated interactions can facilitate the evolution of
cooperation
|
Comments are welcome!
| null | null | null |
q-bio.PE physics.bio-ph physics.soc-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the coevolutionary dynamics of the diversity of phenotype expression
and the evolution of cooperation in the Prisoner's Dilemma game. Rather than
pre-assigning zero-or-one interaction rate, we diversify the rate of
interaction by associating it with the phenotypes shared in common. Individuals
each carry a set of potentially expressible phenotypes and expresses a certain
number of phenotypes at a cost proportional to the number. The number of
expressed phenotypes and thus the rate of interaction is an evolvable trait.
Our results show that nonnegligible cost of expressing phenotypes restrains
phenotype expression, and the evolutionary race mainly proceeds on between
cooperative strains and defective strains who express a very few phenotypes. It
pays for cooperative strains to express a very few phenotypes. Though such a
low level of expression weakens reciprocity between cooperative strains, it
decelerates rate of interaction between cooperative strains and defective
strains to a larger degree, leading to the predominance of cooperative strains
over defective strains. We also find that evolved diversity of phenotype
expression can occasionally destabilize due to the invasion of defective
mutants, implying that cooperation and diversity of phenotype expression can
mutually reinforce each other. Therefore, our results provide new insights into
better understanding the coevolution of cooperation and the diversity of
phenotype expression.
|
[{'version': 'v1', 'created': 'Sun, 3 Jun 2018 12:56:44 GMT'}]
|
2018-06-05
|
[array(['Wu', 'Te', ''], dtype=object)
array(['Fu', 'Feng', ''], dtype=object)
array(['Wang', 'Long', ''], dtype=object)]
|
3,153 |
math/0702012
|
Vincent Beffara
|
Vincent Beffara (UMPA-ENSL), Vladas Sidoravicius (BR-IMPA), Maria
Eulalia Vares (BR-CBPF)
|
On a randomized PNG model with a columnar defect
| null | null | null | null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study a variant of poly-nuclear growth where the level boundaries perform
continuous-time, discrete-space random walks, and study how its asymptotic
behavior is affected by the presence of a columnar defect on the line. We prove
that there is a non-trivial phase transition in the strength of the
perturbation, above which the law of large numbers for the height function is
modified.
|
[{'version': 'v1', 'created': 'Thu, 1 Feb 2007 08:37:55 GMT'}
{'version': 'v2', 'created': 'Tue, 3 Mar 2009 14:02:43 GMT'}]
|
2009-03-03
|
[array(['Beffara', 'Vincent', '', 'UMPA-ENSL'], dtype=object)
array(['Sidoravicius', 'Vladas', '', 'BR-IMPA'], dtype=object)
array(['Vares', 'Maria Eulalia', '', 'BR-CBPF'], dtype=object)]
|
3,154 |
1908.07369
|
Ilya Gartseev
|
I. A. Chistiakov, A. A. Nikulin and I. B. Gartseev
|
Pedestrian Dead-Reckoning Algorithms For Dual Foot-Mounted Inertial
Sensors
|
The data used in the article are available for downloading at
http://gartseev.ru/projects/mkins2019
|
Proc. 26th Saint Petersburg International Conference on Integrated
Navigation Systems (ICINS), IEEE, May 2019, pp.1-8
|
10.23919/ICINS.2019.8769341
| null |
eess.SY cs.SY eess.SP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This work proposes algorithms for reconstruction of closed-loop pedestrian
trajectories based on two foot-mounted inertial measurement units (IMU). The
first proposed algorithm allows calculation of a trajectory using measurements
from only one IMU. The second algorithm uses data from both foot-mounted IMUs
simultaneously. Both algorithms are based on the Kalman filter and the
assumption that while a foot is on the ground its velocity is supposed to be
zero. Two methods for comparing the obtained trajectories are proposed,
advantages and disadvantages of each method are indicated and a way to optimize
the computation time is presented. In addition, a method is proposed for
constructing one generalized trajectory of human motion based on the
trajectories of each leg.
|
[{'version': 'v1', 'created': 'Tue, 20 Aug 2019 14:08:26 GMT'}]
|
2019-08-21
|
[array(['Chistiakov', 'I. A.', ''], dtype=object)
array(['Nikulin', 'A. A.', ''], dtype=object)
array(['Gartseev', 'I. B.', ''], dtype=object)]
|
3,155 |
1703.09095
|
Angel Paredes
|
Alvaro Navarrete, Angel Paredes, Jose R. Salgueiro and Humberto
Michinel
|
Spatial solitons in thermo-optical media from the nonlinear
Schrodinger-Poisson equation and dark matter analogues
|
13 pages, 11 figures
|
Physical Review A 95, 013844 (2017)
|
10.1103/PhysRevA.95.013844
| null |
physics.optics astro-ph.GA nlin.PS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We analyze theoretically the Schrodinger-Poisson equation in two transverse
dimensions in the presence of a Kerr term. The model describes the nonlinear
propagation of optical beams in thermooptical media and can be regarded as an
analogue system for a self-gravitating self-interacting wave. We compute
numerically the family of radially symmetric ground state bright stationary
solutions for focusing and defocusing local nonlinearity, keeping in both cases
a focusing nonlocal nonlinearity. We also analyze excited states and
oscillations induced by fixing the temperature at the borders of the material.
We provide simulations of soliton interactions, drawing analogies with the
dynamics of galactic cores in the scalar field dark matter scenario.
|
[{'version': 'v1', 'created': 'Mon, 27 Mar 2017 14:18:09 GMT'}]
|
2017-03-28
|
[array(['Navarrete', 'Alvaro', ''], dtype=object)
array(['Paredes', 'Angel', ''], dtype=object)
array(['Salgueiro', 'Jose R.', ''], dtype=object)
array(['Michinel', 'Humberto', ''], dtype=object)]
|
3,156 |
2212.01838
|
Stefan Pranger
|
Martin Tappler, Stefan Pranger, Bettina K\"onighofer, Edi
Mu\v{s}kardin, Roderick Bloem and Kim Larsen
|
Automata Learning meets Shielding
| null | null | null | null |
cs.LG cs.LO
|
http://creativecommons.org/licenses/by-sa/4.0/
|
Safety is still one of the major research challenges in reinforcement
learning (RL). In this paper, we address the problem of how to avoid safety
violations of RL agents during exploration in probabilistic and partially
unknown environments. Our approach combines automata learning for Markov
Decision Processes (MDPs) and shield synthesis in an iterative approach.
Initially, the MDP representing the environment is unknown. The agent starts
exploring the environment and collects traces. From the collected traces, we
passively learn MDPs that abstractly represent the safety-relevant aspects of
the environment. Given a learned MDP and a safety specification, we construct a
shield. For each state-action pair within a learned MDP, the shield computes
exact probabilities on how likely it is that executing the action results in
violating the specification from the current state within the next $k$ steps.
After the shield is constructed, the shield is used during runtime and blocks
any actions that induce a too large risk from the agent. The shielded agent
continues to explore the environment and collects new data on the environment.
Iteratively, we use the collected data to learn new MDPs with higher accuracy,
resulting in turn in shields able to prevent more safety violations. We
implemented our approach and present a detailed case study of a Q-learning
agent exploring slippery Gridworlds. In our experiments, we show that as the
agent explores more and more of the environment during training, the improved
learned models lead to shields that are able to prevent many safety violations.
|
[{'version': 'v1', 'created': 'Sun, 4 Dec 2022 14:58:12 GMT'}]
|
2022-12-06
|
[array(['Tappler', 'Martin', ''], dtype=object)
array(['Pranger', 'Stefan', ''], dtype=object)
array(['Könighofer', 'Bettina', ''], dtype=object)
array(['Muškardin', 'Edi', ''], dtype=object)
array(['Bloem', 'Roderick', ''], dtype=object)
array(['Larsen', 'Kim', ''], dtype=object)]
|
3,157 |
2109.02424
|
Shanika Galaudage
|
Shanika Galaudage and Colm Talbot and Tushar Nagar and Deepnika Jain
and Eric Thrane and Ilya Mandel
|
Building better spin models for merging binary black holes: Evidence for
non-spinning and rapidly spinning nearly aligned sub-populations
|
13 pages, 6 figures
| null |
10.3847/2041-8213/ac2f3c
| null |
gr-qc astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recent work paints a conflicting portrait of the distribution of black hole
spins in merging binaries measured with gravitational waves. Some analyses find
that a significant fraction of merging binaries contain at least one black hole
with a spin tilt $>90^\circ$ with respect to the orbital angular momentum
vector, which has been interpreted as a signature for dynamical assembly. Other
analyses find the data are consistent with a bimodal population in which some
binaries contain black holes with negligible spin while the rest contain black
holes with spin vectors preferentially aligned with the orbital angular
momentum vector. In this work, we scrutinize models for the distribution of
black hole spins to pinpoint possible failure modes in which the model yields a
faulty conclusion. We reanalyze data from the second LIGO--Virgo
gravitational-wave transient catalog (GWTC-2) using a revised spin model, which
allows for a sub-population of black holes with negligible spins. In agreement
with recent results by Roulet et al., we show that the GWTC-2 detections are
consistent with two distinct sub-populations. We estimate that $29-75\%$ (90\%
credible interval) of merging binaries contain black holes with negligible spin
$\chi \approx 0$. The remaining binaries are part of a second sub-population in
which the spin vectors are preferentially (but not exactly) aligned to the
orbital angular momentum. The black holes in this second sub-population are
characterized by spins of $\chi\sim0.45$. We suggest that the inferred spin
distribution is consistent with the hypothesis that all merging binaries form
via the field formation scenario.
|
[{'version': 'v1', 'created': 'Fri, 3 Sep 2021 02:42:02 GMT'}
{'version': 'v2', 'created': 'Tue, 7 Sep 2021 10:12:54 GMT'}
{'version': 'v3', 'created': 'Sat, 23 Apr 2022 13:26:46 GMT'}]
|
2022-04-26
|
[array(['Galaudage', 'Shanika', ''], dtype=object)
array(['Talbot', 'Colm', ''], dtype=object)
array(['Nagar', 'Tushar', ''], dtype=object)
array(['Jain', 'Deepnika', ''], dtype=object)
array(['Thrane', 'Eric', ''], dtype=object)
array(['Mandel', 'Ilya', ''], dtype=object)]
|
3,158 |
nucl-th/0002001
|
Kenji Morita
|
K.Morita, S.Muroya, H.Nakamura and C.Nonaka
|
Pion Interferometry From A Relativistic Fluid With A First Order Phase
Transition In CERN-SPS 158 GeV/A Pb+Pb Collisions
|
5 pages, LaTeX with six eps figures, Contribution to 'International
Workshop XXVIII on Gross Properties of Nuclei And Nuclear Excitations'.
Hirchegg, Austria, Jan 16-22, 2000
| null | null | null |
nucl-th
| null |
We investigate pion source sizes through the Yano-Koonin-Podgoretski\u{\i}
(YKP) parametrization for the Hanbury-Brown Twiss (HBT) effect in the CERN-SPS
158 GeV/A central collisions. We calculate two-particle correlation functions
numerically based on a (3+1)-dimensional relativistic hydrodynamics with a
first order phase transition and analyze the pair momentum dependence of the
HBT radii extracted from the YKP parametrization in detail. We find that even
in the case of a first order phase transition, expansion and the surface
dominant freeze-out make the source in the hydrodynamical model opaque
significantly. Consequently, the interpretation of the temporal radius
parameter as the time duration becomes unavailable for the hydrodynamical
model.
|
[{'version': 'v1', 'created': 'Tue, 1 Feb 2000 06:55:56 GMT'}]
|
2007-05-23
|
[array(['Morita', 'K.', ''], dtype=object)
array(['Muroya', 'S.', ''], dtype=object)
array(['Nakamura', 'H.', ''], dtype=object)
array(['Nonaka', 'C.', ''], dtype=object)]
|
3,159 |
1703.01321
|
Gorazd Cvetic
|
Cesar Ayala, Gorazd Cvetic, Reinhart Kogerler, and Igor Kondrashuk
|
Nearly perturbative lattice-motivated QCD coupling with zero IR limit
|
43 pages, 15 figures, v4: improved presentation in the text, results
unchanged; new references added ([7-8,28-29,40,44-45,47,52-53,127-128]); to
appear in J.Phys.G
|
J.Phys.G45 (2018) 035001
|
10.1088/1361-6471/aa9ecc
|
USM-TH-351
|
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The product of the gluon dressing function and the square of the ghost
dressing function in the Landau gauge can be regarded to represent, apart from
the inverse power corrections 1/Q^{2n}, a nonperturbative generalization A(Q^2)
of the perturbative QCD running coupling a(Q^2)=alpha_s(Q^2)/pi. Recent large
volume lattice calculations for these dressing functions indicate that the
coupling defined in such a way goes to zero as A(Q^2)~Q^2 when the squared
momenta Q^2 go to zero (Q^2<<1 GeV^2). In this work we construct such a QCD
coupling A(Q^2) which fulfills also various other physically motivated
conditions. At high momenta it becomes the underlying perturbative coupling
a(Q^2) to a very high precision. And at intermediate low squared momenta Q^2~1
GeV^2 it gives results consistent with the data of the semihadronic tau lepton
decays as measured by OPAL and ALEPH. The coupling is constructed in a
dispersive way, resulting as a byproduct in the holomorphic behavior of A(Q^2)
in the complex Q^2-plane which reflects the holomorphic behavior of the
spacelike QCD observables. Application of the Borel sum rules to tau-decay V+A
spectral functions allows us to obtain values for the gluon (dimension-4)
condensate and the dimension-6 condensate, which reproduce the measured OPAL
and ALEPH data to a significantly better precision than the perturbative MSbar
coupling approach.
|
[{'version': 'v1', 'created': 'Fri, 3 Mar 2017 20:00:55 GMT'}
{'version': 'v2', 'created': 'Wed, 15 Mar 2017 12:33:45 GMT'}
{'version': 'v3', 'created': 'Sun, 16 Jul 2017 07:35:20 GMT'}
{'version': 'v4', 'created': 'Sat, 2 Dec 2017 14:59:36 GMT'}]
|
2019-04-02
|
[array(['Ayala', 'Cesar', ''], dtype=object)
array(['Cvetic', 'Gorazd', ''], dtype=object)
array(['Kogerler', 'Reinhart', ''], dtype=object)
array(['Kondrashuk', 'Igor', ''], dtype=object)]
|
3,160 |
1605.00044
|
Mauricio Poletti
|
Mauricio Poletti
|
Stably positive Lyapunov exponents for symplectic linear cocycles over
partially hyperbolic diffeomorphisms
|
To appear in Discrete and Continuous Dynamical Systems
| null | null | null |
math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider symplectic cocycles over two classes of partially hyperbolic
diffeomorphisms: having compact center leaves and time one maps of Anosov
flows. We prove that the Lyapunov exponents are non-zero in an open and dense
set in the H\"older topology.
|
[{'version': 'v1', 'created': 'Fri, 29 Apr 2016 23:50:40 GMT'}
{'version': 'v2', 'created': 'Thu, 30 Jun 2016 16:58:44 GMT'}
{'version': 'v3', 'created': 'Tue, 21 Feb 2017 18:49:00 GMT'}
{'version': 'v4', 'created': 'Tue, 23 May 2017 12:53:48 GMT'}
{'version': 'v5', 'created': 'Mon, 11 Jun 2018 09:51:39 GMT'}]
|
2018-06-12
|
[array(['Poletti', 'Mauricio', ''], dtype=object)]
|
3,161 |
1711.09460
|
Kurt Vinhage
|
Adam Kanigowski, Kurt Vinhage, Daren Wei
|
Slow Entropy of Some Parabolic Flows
| null |
Commun. Math. Phys. (2019) 370: 449
|
10.1007/s00220-019-03512-6
| null |
math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study nontrivial entropy invariants in the class of parabolic flows on
homogeneous spaces, quasi-unipotent flows. We show that topological complexity
(ie, slow entropy) can be computed directly from the Jordan block structure of
the adjoint representation. Moreover using uniform polynomial shearing we are
able to show that the metric orbit growth (ie, slow entropy) coincides with the
topological one, establishing hence variational principle for quasi-unipotent
flows (this also applies to the non-compact case). Our results also apply to
sequence entropy. We establish criterion for a system to have trivial
topological complexity and give some examples in which the measure-theoretic
and topological complexities do not coincide for uniquely ergodic systems,
violating the intuition of the classical variational principle.
|
[{'version': 'v1', 'created': 'Sun, 26 Nov 2017 21:06:58 GMT'}]
|
2019-08-27
|
[array(['Kanigowski', 'Adam', ''], dtype=object)
array(['Vinhage', 'Kurt', ''], dtype=object)
array(['Wei', 'Daren', ''], dtype=object)]
|
3,162 |
2110.01846
|
Hyung-Joo Moon
|
Hyung-Joo Moon, Hong-Bae Jeon, Chan-Byoung Chae
|
RF Lens Antenna Array-Based One-Shot Coarse Pointing for Hybrid RF/FSO
Communications
|
5 pages, 5 figures
| null | null | null |
eess.SP
|
http://creativecommons.org/licenses/by/4.0/
|
Because of its high directivity, free-space optical (FSO) communication
offers a number of advantages. It can, however, give rise to major system
difficulties concerning alignment between two terminals. During the
link-acquisition step (a.k.a. coarse pointing), a ground station can be
prevented from acquiring optical links due to pointing errors and insufficient
information about unmanned aerial vehicle locations. We propose, in this
letter, a radio-frequency (RF) lens antenna array to increase the performance
of coarse pointing in hybrid RF/FSO communications. The proposed algorithm
using a novel closed-form angle estimator, compared to conventional methods,
reduces the minimum outage probability by over a thousand times.
|
[{'version': 'v1', 'created': 'Tue, 5 Oct 2021 07:10:02 GMT'}]
|
2021-10-06
|
[array(['Moon', 'Hyung-Joo', ''], dtype=object)
array(['Jeon', 'Hong-Bae', ''], dtype=object)
array(['Chae', 'Chan-Byoung', ''], dtype=object)]
|
3,163 |
2204.10287
|
Iddo Ben-Ari
|
Iddo Ben-Ari and Clayton Allard and Shrikant Chand and Van Hovenga and
Edith Lee and Julia Shapiro
|
Quasistationary Distribution for the Invasion Model on a Complete
Bipartite Graph
|
27 pages, 5 figures
| null | null | null |
math.PR
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
The Invasion Model on the complete bibartitle graph was introduced and
studied by physicists as a rudimentary model for opinion dynamics on complex
networks. We identify the limit of the Quasistationary distribution for the
model as one partition size tends to infinity. The limit is a highly dispersed
measure. A distinctive feature of the model is that of two time scales with
non-trivial interaction. The work and the results complement and are in sharp
contrast to the analogous results on the closely related Voter Model.
|
[{'version': 'v1', 'created': 'Thu, 21 Apr 2022 17:29:06 GMT'}
{'version': 'v2', 'created': 'Fri, 6 May 2022 20:46:02 GMT'}]
|
2022-05-10
|
[array(['Ben-Ari', 'Iddo', ''], dtype=object)
array(['Allard', 'Clayton', ''], dtype=object)
array(['Chand', 'Shrikant', ''], dtype=object)
array(['Hovenga', 'Van', ''], dtype=object)
array(['Lee', 'Edith', ''], dtype=object)
array(['Shapiro', 'Julia', ''], dtype=object)]
|
3,164 |
2202.04714
|
Michael Brannan
|
Michael Brannan, Floris Elzinga, Samuel J. Harris, Makoto Yamashita
|
Crossed Product Equivalence of Quantum Automorphism Groups
|
27 pages. Revised version to appear in IMRN
| null | null | null |
math.OA math.QA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We compare the algebras of the quantum automorphism group of
finite-dimensional C$^\ast$-algebra $B$, which includes the quantum permutation
group $S_N^+$, where $N = \dim B$. We show that matrix amplification and
crossed products by trace-preserving actions by a finite Abelian group $\Gamma$
lead to isomorphic $\ast$-algebras. This allows us to transfer various
properties such as inner unitarity, Connes embeddability, and strong
$1$-boundedness between the various algebras associated with these quantum
groups.
|
[{'version': 'v1', 'created': 'Wed, 9 Feb 2022 20:34:12 GMT'}
{'version': 'v2', 'created': 'Tue, 21 Feb 2023 16:49:34 GMT'}]
|
2023-02-22
|
[array(['Brannan', 'Michael', ''], dtype=object)
array(['Elzinga', 'Floris', ''], dtype=object)
array(['Harris', 'Samuel J.', ''], dtype=object)
array(['Yamashita', 'Makoto', ''], dtype=object)]
|
3,165 |
cond-mat/9808092
|
Toshimasa Fujisawa
|
T. Fujisawa (1,2), T. H. Oosterkamp (1), W. G. van der Wiel (1), B. W.
Broer (1), R. Aguado (1), S. Tarucha (2,3) and L. P. Kouwenhoven (1) ((1)
Delft Univ. Tech. (2) NTT Basic Res. Labs. (3) Univ. Tokyo)
|
Spontaneous Emission Spectrum in Double Quantum Dot Devices
|
5 pages, 3 figures
| null |
10.1126/science.282.5390.932
| null |
cond-mat.mes-hall
| null |
A double quantum dot device is a tunable two-level system for electronic
energy states. A dc electron current directly measures the rates for elastic
and inelastic transitions between the two levels. For inelastic transitions
energy is exchanged with bosonic degrees of freedom in the environment. The
inelastic transition rates are well described by the Einstein coefficients,
relating absorption with stimulated and spontaneous emission. The most
effectively coupled bosons in the specific environment of our semiconductor
device are acoustic phonons. The experiments demonstrate the importance of
vacuum fluctuations in the environment for little circuits of coherent quantum
devices.
|
[{'version': 'v1', 'created': 'Mon, 10 Aug 1998 15:45:57 GMT'}]
|
2009-10-31
|
[array(['Fujisawa', 'T.', ''], dtype=object)
array(['Oosterkamp', 'T. H.', ''], dtype=object)
array(['van der Wiel', 'W. G.', ''], dtype=object)
array(['Broer', 'B. W.', ''], dtype=object)
array(['Aguado', 'R.', ''], dtype=object)
array(['Tarucha', 'S.', ''], dtype=object)
array(['Kouwenhoven', 'L. P.', ''], dtype=object)]
|
3,166 |
1706.04605
|
Nikita G. Misuna
|
Nikita Misuna
|
On current contribution to Fronsdal equations
|
15 pages. V3: typos corrected; references added; Introduction
extended. To appear in Physics Letters B
|
Phys. Lett. B 778 (2018) 71
|
10.1016/j.physletb.2018.01.019
|
FIAN/TD/2017-15
|
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We explore a local form of second-order Vasiliev equations proposed in
[arXiv:1706.03718] and obtain an explicit expression for quadratic corrections
to bosonic Fronsdal equations, generated by gauge-invariant higher-spin
currents. Our analysis is performed for general phase factor, and for the case
of parity-invariant theory we find the agreement with expressions for cubic
vertices available in the literature. This provides an additional indication
that field redefinition proposed in [arXiv:1706.03718] is the proper one.
|
[{'version': 'v1', 'created': 'Wed, 14 Jun 2017 17:44:33 GMT'}
{'version': 'v2', 'created': 'Mon, 11 Sep 2017 17:38:21 GMT'}
{'version': 'v3', 'created': 'Mon, 15 Jan 2018 15:04:25 GMT'}]
|
2018-04-24
|
[array(['Misuna', 'Nikita', ''], dtype=object)]
|
3,167 |
2003.05438
|
Zhiqiang Shen
|
Zhiqiang Shen and Zechun Liu and Zhuang Liu and Marios Savvides and
Trevor Darrell and Eric Xing
|
Un-Mix: Rethinking Image Mixtures for Unsupervised Visual Representation
Learning
|
AAAI 2022 camera ready version with Appendix (add a formula example
with InfoNCE). Code is available at: https://github.com/szq0214/Un-Mix
| null | null | null |
cs.CV cs.LG eess.IV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The recently advanced unsupervised learning approaches use the siamese-like
framework to compare two "views" from the same image for learning
representations. Making the two views distinctive is a core to guarantee that
unsupervised methods can learn meaningful information. However, such frameworks
are sometimes fragile on overfitting if the augmentations used for generating
two views are not strong enough, causing the over-confident issue on the
training data. This drawback hinders the model from learning subtle variance
and fine-grained information. To address this, in this work we aim to involve
the distance concept on label space in the unsupervised learning and let the
model be aware of the soft degree of similarity between positive or negative
pairs through mixing the input data space, to further work collaboratively for
the input and loss spaces. Despite its conceptual simplicity, we show
empirically that with the solution -- Unsupervised image mixtures (Un-Mix), we
can learn subtler, more robust and generalized representations from the
transformed input and corresponding new label space. Extensive experiments are
conducted on CIFAR-10, CIFAR-100, STL-10, Tiny ImageNet and standard ImageNet
with popular unsupervised methods SimCLR, BYOL, MoCo V1&V2, SwAV, etc. Our
proposed image mixture and label assignment strategy can obtain consistent
improvement by 1~3% following exactly the same hyperparameters and training
procedures of the base methods. Code is publicly available at
https://github.com/szq0214/Un-Mix.
|
[{'version': 'v1', 'created': 'Wed, 11 Mar 2020 17:59:04 GMT'}
{'version': 'v2', 'created': 'Mon, 15 Feb 2021 17:44:46 GMT'}
{'version': 'v3', 'created': 'Thu, 25 Feb 2021 18:32:44 GMT'}
{'version': 'v4', 'created': 'Fri, 17 Dec 2021 18:42:21 GMT'}
{'version': 'v5', 'created': 'Thu, 17 Feb 2022 14:56:37 GMT'}]
|
2022-02-18
|
[array(['Shen', 'Zhiqiang', ''], dtype=object)
array(['Liu', 'Zechun', ''], dtype=object)
array(['Liu', 'Zhuang', ''], dtype=object)
array(['Savvides', 'Marios', ''], dtype=object)
array(['Darrell', 'Trevor', ''], dtype=object)
array(['Xing', 'Eric', ''], dtype=object)]
|
3,168 |
1406.3809
|
Dharm Veer Singh
|
Dharm Veer Singh
|
Power Law Corrections to BTZ Black Hole Entropy
|
21 pages, 3 figures, Journal Version
|
Int. J. Mod. Phys. D 24:1550001 (2015)
|
10.1142/S0218271815500017
| null |
hep-th gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the quantum scalar field in the background of BTZ black hole and
evaluate the entanglement entropy of the non-vacuum states. The entropy is
proportional to the area of event horizon for the ground state, but the area
law is violated in the case of non-vacuum states (first excited state and mixed
states) and the corrections scale as power law.
|
[{'version': 'v1', 'created': 'Sun, 15 Jun 2014 11:40:47 GMT'}
{'version': 'v2', 'created': 'Wed, 15 Oct 2014 07:13:51 GMT'}
{'version': 'v3', 'created': 'Fri, 14 Nov 2014 05:37:59 GMT'}]
|
2014-11-17
|
[array(['Singh', 'Dharm Veer', ''], dtype=object)]
|
3,169 |
2306.09697
|
Qingyu Tan
|
Qingyu Tan, Lu Xu, Lidong Bing, Hwee Tou Ng
|
Class-Adaptive Self-Training for Relation Extraction with Incompletely
Annotated Training Data
|
ACL 2023 Findings
| null | null | null |
cs.CL
|
http://creativecommons.org/licenses/by/4.0/
|
Relation extraction (RE) aims to extract relations from sentences and
documents. Existing relation extraction models typically rely on supervised
machine learning. However, recent studies showed that many RE datasets are
incompletely annotated. This is known as the false negative problem in which
valid relations are falsely annotated as 'no_relation'. Models trained with
such data inevitably make similar mistakes during the inference stage.
Self-training has been proven effective in alleviating the false negative
problem. However, traditional self-training is vulnerable to confirmation bias
and exhibits poor performance in minority classes. To overcome this limitation,
we proposed a novel class-adaptive re-sampling self-training framework.
Specifically, we re-sampled the pseudo-labels for each class by precision and
recall scores. Our re-sampling strategy favored the pseudo-labels of classes
with high precision and low recall, which improved the overall recall without
significantly compromising precision. We conducted experiments on
document-level and biomedical relation extraction datasets, and the results
showed that our proposed self-training framework consistently outperforms
existing competitive methods on the Re-DocRED and ChemDisgene datasets when the
training data are incompletely annotated. Our code is released at
https://github.com/DAMO-NLP-SG/CAST.
|
[{'version': 'v1', 'created': 'Fri, 16 Jun 2023 09:01:45 GMT'}]
|
2023-06-19
|
[array(['Tan', 'Qingyu', ''], dtype=object)
array(['Xu', 'Lu', ''], dtype=object)
array(['Bing', 'Lidong', ''], dtype=object)
array(['Ng', 'Hwee Tou', ''], dtype=object)]
|
3,170 |
quant-ph/9702059
|
Kalle-Antti Suominen
|
Stig Stenholm and Asta Paloviita (Research Institute for Theoretical
Physics, University of Helsinki, Finland)
|
States prepared by decay
|
22 pages, Latex2.09, 6 Postscript figures embedded using psfig, see
also http://www.physics.helsinki.fi/~kasuomin/ To appear in a Special Issue
of Journal of Modern Optics (1997)
|
J. Mod. Opt. 44, 2533-2550 (1997)
|
10.1080/09500349708231899
|
HU-TFT-96-43
|
quant-ph
| null |
We consider the time evolution of a discrete state embedded in a continuum.
Results from scattering theory can be utilized to solve the initial value
problem and discuss the system as a model of wave packet preparation. Extensive
use is made of the analytic properties of the propagators, and simple model
systems are evaluated to illustrate the argument. We verify the exponential
appearence of the continuum state and its propagation as a localized wave
packet.
|
[{'version': 'v1', 'created': 'Thu, 27 Feb 1997 09:22:40 GMT'}]
|
2015-06-26
|
[array(['Stenholm', 'Stig', '',
'Research Institute for Theoretical\n Physics, University of Helsinki, Finland'],
dtype=object)
array(['Paloviita', 'Asta', '',
'Research Institute for Theoretical\n Physics, University of Helsinki, Finland'],
dtype=object) ]
|
3,171 |
1407.3215
|
Jean Carlson
|
Edwin C. Yuan, David L. Alderson, Sean Stromberg, and Jean M. Carlson
|
Optimal vaccination in a stochastic epidemic model of two
non-interacting populations
|
21 pages, 7 figures
| null |
10.1371/journal.pone.0115826
| null |
q-bio.QM q-bio.PE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Developing robust, quantitative methods to optimize resource allocations in
response to epidemics has the potential to save lives and minimize health care
costs. In this paper, we develop and apply a computationally efficient
algorithm that enables us to calculate the complete probability distribution
for the final epidemic size in a stochastic Susceptible-Infected-Recovered
(SIR) model. Based on these results, we determine the optimal allocations of a
limited quantity of vaccine between two non-interacting populations. We compare
the stochastic solution to results obtained for the traditional, deterministic
SIR model. For intermediate quantities of vaccine, the deterministic model is a
poor estimate of the optimal strategy for the more realistic, stochastic case.
|
[{'version': 'v1', 'created': 'Thu, 10 Jul 2014 05:12:24 GMT'}]
|
2015-06-22
|
[array(['Yuan', 'Edwin C.', ''], dtype=object)
array(['Alderson', 'David L.', ''], dtype=object)
array(['Stromberg', 'Sean', ''], dtype=object)
array(['Carlson', 'Jean M.', ''], dtype=object)]
|
3,172 |
1402.6375
|
Xiaohu Li
|
Xiaohu Li, Carina Arasa, Marc C. van Hemert and Ewine F. van Dishoeck
|
Effects of Reagent Rotation and Vibration on H + OH (v,j) $\to$ O + H2
|
Current version: 35 pages with 7 figures and 2 tables. Online
version: 8 pages, see http://pubs.acs.org/doi/abs/10.1021/jp4068153
|
J. Phys. Chem. A, 2013, 117 (48), 12889
|
10.1021/jp4068153
| null |
astro-ph.SR
|
http://creativecommons.org/licenses/by-nc-sa/3.0/
|
The dynamics of the reaction H + OH $\to$ O (3P) + H2 have been studied in a
series of quasi-classical trajectory (QCT) calculations and transition state
theory (TST) methods using high quality 3A' and 3A'' potential energy surfaces
(PESs). Accurate OH (v, j) state resolved cross sections and rate constants on
both potential energy surfaces are presented and fitted for OH at (v = 0, j =
0-16) and (v = 1, j = 0-6). The cross sections were calculated for different
collisional energies (Ec), ranging from the threshold energy at each specific
rovibrational state up to 1.0 eV with step sizes of 0.1 eV or less. They
increase steeply with collision energy when the barrier to reaction can be
overcome, after which the cross sections stay nearly constant with energy.
State resolved rate constants in the temperature range 200-2500 K are presented
based on the cross sections. Total thermal rate constants were calculated by
summing the rates for reaction on the 3A' and 3A'' potential energy surfaces
weighted by 1/3 and taking into account the thermal populations of the
rovibrational states of the OH molecules. It is shown that the improved
canonical variational transition (CVT) treatments with the approximation of
zero-curvature tunneling (ZCT) or small-curvature tunneling (SCT) produce
results more in accord with the QCT results than the TST and CVT methods. The
reactions are governed by the direct reaction mechanism. The rate constants for
OH in excited vibrational and rotational states are orders of magnitude larger
than the thermal rate constants, which needs to be taken into account in
astrochemical models.
|
[{'version': 'v1', 'created': 'Tue, 25 Feb 2014 23:53:30 GMT'}]
|
2014-02-27
|
[array(['Li', 'Xiaohu', ''], dtype=object)
array(['Arasa', 'Carina', ''], dtype=object)
array(['van Hemert', 'Marc C.', ''], dtype=object)
array(['van Dishoeck', 'Ewine F.', ''], dtype=object)]
|
3,173 |
1911.11370
|
Florent Schaffhauser
|
Florent Schaffhauser
|
Symmetric differentials and the dimension of Hitchin components for
orbi-curves
|
To appear in Proceedings of the 2019 ISAAC Congress (Special Session
on Complex Geometry), 8 pages
| null | null | null |
math.AG math.DG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This note is based on a talk given at the 2019 ISAAC Congress in Aveiro,
Portugal. We give an expository account of joint work with Daniele Alessandrini
and Gye-Seon Lee on Hitchin components for orbifold groups (arXiv:1811.05366),
recasting part of it in the language of analytic orbi-curves. This reduces the
computation of the dimension of the Hitchin component for orbifold groups to an
application of the orbifold Riemann-Roch theorem.
|
[{'version': 'v1', 'created': 'Tue, 26 Nov 2019 06:57:07 GMT'}]
|
2019-11-27
|
[array(['Schaffhauser', 'Florent', ''], dtype=object)]
|
3,174 |
1908.05508
|
Fabio Brochero Martinez
|
F. E. Brochero Mart\'inez and Nelcy Esperanza Ar\'evalo Baquero
|
Factorization of Dickson polynomials over Finite Fields
| null | null | null | null |
math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $D_n(x;a)$ and $E_n(x;a)\in\mathbb F_q[x]$ be Dickson polynomials of
first and second kind respectively, where $\mathbb F_q$ is a finite field with
$q$ elements. In this article we show explicitly the irreducible factors these
polynomials in the case that every prime divisor of $n$ divides $q-1$.
This result generalizes the results find in Chou, W.S., The Factorization of
Dickson polynomials over finite fields. Finite Fields Appl. {\bf3} (1997)
84-96, Fitzgerald R. W., Yucas J. L., Explicit factorization of cyclotomic and
Dickson polynomials over finite fields. Arithmetic of Finite Fields. Lecture
Notes in Computer Science, vol. {\bf 4547}, pp. 1-10. Springer, Berlin (2007),
Tosun, S., Explicit factorizations of generalized Dickson polynomials of order
$2^{m}$ via generalized cyclotomic polynomials over finite fields. Finite
Fields Appl. {\bf 38} (2016) 40-56 and Tosun, S., Explicit factors of
generalized cyclotomic polynomials and generalized Dickson polynomials of order
$2^m3$ over finite fields. Discrete Math. 342 (2019) DOI: j.disc.2019.111618
|
[{'version': 'v1', 'created': 'Thu, 15 Aug 2019 12:19:21 GMT'}]
|
2019-08-16
|
[array(['Martínez', 'F. E. Brochero', ''], dtype=object)
array(['Baquero', 'Nelcy Esperanza Arévalo', ''], dtype=object)]
|
3,175 |
1902.10534
|
Cynthia Hadjidakis
|
C. Hadjidakis, S.J. Brodsky, G. Cavoto, C. Da Silva, F. Donato, M.G.
Echevarria, E.G. Ferreiro, I. H\v{r}ivn\'a\v{c}ov\'a, D. Kikola, A. Klein, A.
Kurepin, A. Kusina, J.P. Lansberg, C. Lorc\'e, F. Lyonnet, Y. Makdisi, L.
Massacrier, S. Porteboeuf, C. Quintans, A. Rakotozafindrabe, P. Robbe, W.
Scandale, I. Schienbein, J. Seixas, H.S. Shao, A. Signori, N. Topilskaya, B.
Trzeciak, A. Uras, J. Wagner, N. Yamanaka, Z. Yang, A. Zelenski
|
High luminosity fixed-target experiment at the LHC
|
5 pages, 2 figures, 9th International Conference on Hard and
Electromagnetic Probes of High-Energy Nuclear Collisions : Hard Probes 2018.
(HP2018)
| null | null | null |
hep-ex nucl-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
By extracting the beam with a bent crystal or by using an internal gas
target, the multi-TeV proton and lead LHC beams allow one to perform the most
energetic fixed-target experiments ever and to study $pp$, $p$d and $p$A
collisions at $\sqrt{s_{NN}}=115$ GeV and Pb$p$ and PbA collisions at
$\sqrt{s_{NN}}=72$ GeV with high precision and modern detection techniques.
Such studies would address open questions in the domain of the nucleon and
nucleus partonic structure at high-$x$, quark-gluon plasma and, by using
longitudinally or transversally polarised targets, spin physics. In this paper,
we will review the technical solutions to obtain a high-luminosity fixed-target
experiment at the LHC and will discuss their possible implementations with the
ALICE and LHCb detectors.
|
[{'version': 'v1', 'created': 'Wed, 27 Feb 2019 13:55:23 GMT'}]
|
2019-02-28
|
[array(['Hadjidakis', 'C.', ''], dtype=object)
array(['Brodsky', 'S. J.', ''], dtype=object)
array(['Cavoto', 'G.', ''], dtype=object)
array(['Da Silva', 'C.', ''], dtype=object)
array(['Donato', 'F.', ''], dtype=object)
array(['Echevarria', 'M. G.', ''], dtype=object)
array(['Ferreiro', 'E. G.', ''], dtype=object)
array(['Hřivnáčová', 'I.', ''], dtype=object)
array(['Kikola', 'D.', ''], dtype=object)
array(['Klein', 'A.', ''], dtype=object)
array(['Kurepin', 'A.', ''], dtype=object)
array(['Kusina', 'A.', ''], dtype=object)
array(['Lansberg', 'J. P.', ''], dtype=object)
array(['Lorcé', 'C.', ''], dtype=object)
array(['Lyonnet', 'F.', ''], dtype=object)
array(['Makdisi', 'Y.', ''], dtype=object)
array(['Massacrier', 'L.', ''], dtype=object)
array(['Porteboeuf', 'S.', ''], dtype=object)
array(['Quintans', 'C.', ''], dtype=object)
array(['Rakotozafindrabe', 'A.', ''], dtype=object)
array(['Robbe', 'P.', ''], dtype=object)
array(['Scandale', 'W.', ''], dtype=object)
array(['Schienbein', 'I.', ''], dtype=object)
array(['Seixas', 'J.', ''], dtype=object)
array(['Shao', 'H. S.', ''], dtype=object)
array(['Signori', 'A.', ''], dtype=object)
array(['Topilskaya', 'N.', ''], dtype=object)
array(['Trzeciak', 'B.', ''], dtype=object)
array(['Uras', 'A.', ''], dtype=object)
array(['Wagner', 'J.', ''], dtype=object)
array(['Yamanaka', 'N.', ''], dtype=object)
array(['Yang', 'Z.', ''], dtype=object)
array(['Zelenski', 'A.', ''], dtype=object)]
|
3,176 |
1812.09146
|
Giovanni Abramo
|
Giovanni Abramo
|
The Technology Transfer of the Italian Public Research System: the Case
of the National Research Council of Italy
| null |
International Journal of Technology Transfer and
Commercialization, 5(4), 338-354
|
10.1504/IJTTC.2006.013342
| null |
cs.DL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper deals with the technology transfer activities of the main public
research institution in Italy, the Italian Research Council, CNR. A comparative
analysis on patenting and licensing performances between CNR and the
Massachusetts Institute of Technology, MIT has been carried out. Findings show
that: research expenses being equal, CNR patents are 26% of MIT's; and, patents
being equal, CNR licenses are also 26% of MIT's. This means that CNR impact on
domestic competitiveness, in terms of patent licenses, is less than 7% of
MIT's. Moreover, while 83% of CNR patents are never licensed to domestic
industry, the Italian technology balance of payments shows a perennial deficit.
The paper concludes with the identification of the possible causes that may
explain such a gap.
|
[{'version': 'v1', 'created': 'Fri, 21 Dec 2018 14:30:50 GMT'}]
|
2018-12-24
|
[array(['Abramo', 'Giovanni', ''], dtype=object)]
|
3,177 |
2111.10343
|
Max Fieg
|
Brian Batell, Jonathan L. Feng, Max Fieg, Ahmed Ismail, Felix Kling,
Roshan Mammen Abraham, Sebastian Trojanowski
|
Hadrophilic Dark Sectors at the Forward Physics Facility
|
v2: Updated to PRD version, results unchanged v3: Corrected a minor
typo in Eq. 13, results unchanged
| null |
10.1103/PhysRevD.105.075001
| null |
hep-ph hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Models with light dark sector and dark matter particles motivate
qualitatively new collider searches. Here we carry out a comprehensive study of
hadrophilic models with U(1)$_B$ and U(1)$_{B-3L_{\tau}}$ gauge bosons coupled
to light dark matter. The new mediator particles in these models couple to
quarks, but have suppressed couplings to leptons, providing a useful foil to
the well-studied dark photon models. We consider current bounds from
accelerator and collider searches, rare anomaly-induced decays, neutrino
non-standard interactions, and dark matter direct detection. Despite the many
existing constraints, these models predict a range of new signatures that can
be seen in current and near future experiments, including dark gauge boson
decays to the hadronic final states $\pi^+ \pi^- \pi^0$, $\pi^0 \gamma$, $K^+
K^-$, and $K_S K_L$ in FASER at LHC Run 3, enhancements of $\nu_{\tau}$
scattering rates in far-forward neutrino detectors, and thermal dark matter
scattering in FLArE in the HL-LHC era. These models therefore motivate an array
of different experiments in the far-forward region at the LHC, as could be
accommodated in the proposed Forward Physics Facility.
|
[{'version': 'v1', 'created': 'Fri, 19 Nov 2021 17:47:59 GMT'}
{'version': 'v2', 'created': 'Tue, 19 Apr 2022 16:21:44 GMT'}
{'version': 'v3', 'created': 'Wed, 6 Jul 2022 19:00:29 GMT'}]
|
2022-07-08
|
[array(['Batell', 'Brian', ''], dtype=object)
array(['Feng', 'Jonathan L.', ''], dtype=object)
array(['Fieg', 'Max', ''], dtype=object)
array(['Ismail', 'Ahmed', ''], dtype=object)
array(['Kling', 'Felix', ''], dtype=object)
array(['Abraham', 'Roshan Mammen', ''], dtype=object)
array(['Trojanowski', 'Sebastian', ''], dtype=object)]
|
3,178 |
cond-mat/0307179
|
Alexei L. Ivanov
|
A.L. Ivanov and P.B. Littlewood
|
Resonant acousto-optics of microcavity polaritons
|
Accepted for publication in a special issue of Semiconductor Science
and Technology
|
Semicond. Sci. Technol., vol. 18 (10), pp. S428-S434 (2003)
|
10.1088/0268-1242/18/10/318
| null |
cond-mat.mes-hall cond-mat.mtrl-sci
| null |
We propose and analyze theoretically a resonant acousto-optic Stark effect
for microcavity (MC) polaritons parametrically driven by a surface acoustic
wave. For GaAs-based microcavities our scheme ``acoustic pumping - optical
probing'' deals with surface acoustic waves of frequency $\nu_{\rm SAW} \simeq
0.5 - 3$ GHz and intensity $I_{\rm SAW} \simeq 0.1 - 10$ mW/mm. The
acoustically-induced stop gaps in the MC polariton spectrum drastically change
the optical response of MC polaritons. Because an acoustically pumped intrinsic
semiconductor microcavity remains in its ground electronic state, no many-body
effects screen and weaken the resonant acousto-optic Stark effect. In the
meantime, this allows us to work out an exactly-solvable model for resonant
acousto-optics of MC polaritons which deals with giant acousto-optical
nonlinearities. Finally, we discuss possible applications of the proposed
resonant acoustic Stark effect for optical modulation and switching and
describe an acousto-optic device based on a (GaAs) microcavity driven by a
surface acoustic wave.
|
[{'version': 'v1', 'created': 'Tue, 8 Jul 2003 18:24:25 GMT'}]
|
2009-11-10
|
[array(['Ivanov', 'A. L.', ''], dtype=object)
array(['Littlewood', 'P. B.', ''], dtype=object)]
|
3,179 |
2207.09912
|
Byunggill Joe
|
Byunggill Joe, Insik Shin and Jihun Hamm
|
Online Evasion Attacks on Recurrent Models:The Power of Hallucinating
the Future
|
7 pages, 10 figures, IJCAI'22
| null | null | null |
cs.CR cs.AI cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recurrent models are frequently being used in online tasks such as autonomous
driving, and a comprehensive study of their vulnerability is called for.
Existing research is limited in generality only addressing application-specific
vulnerability or making implausible assumptions such as the knowledge of future
input. In this paper, we present a general attack framework for online tasks
incorporating the unique constraints of the online setting different from
offline tasks. Our framework is versatile in that it covers time-varying
adversarial objectives and various optimization constraints, allowing for a
comprehensive study of robustness. Using the framework, we also present a novel
white-box attack called Predictive Attack that `hallucinates' the future. The
attack achieves 98 percent of the performance of the ideal but infeasible
clairvoyant attack on average. We validate the effectiveness of the proposed
framework and attacks through various experiments.
|
[{'version': 'v1', 'created': 'Fri, 8 Jul 2022 11:06:19 GMT'}]
|
2022-07-21
|
[array(['Joe', 'Byunggill', ''], dtype=object)
array(['Shin', 'Insik', ''], dtype=object)
array(['Hamm', 'Jihun', ''], dtype=object)]
|
3,180 |
2104.14446
|
Yves-Marie Ducimeti\`ere
|
Yves-Marie Ducimeti\`ere, Fran\c{c}ois Gallaire, Adrien Lefauve and
Colm-cille P. Caulfield
|
The effects of spanwise confinement on stratified shear instabilities
|
35 pages, 12 figures
|
Phys. Rev. Fluids 6, 103901 (2021)
|
10.1103/PhysRevFluids.6.103901
| null |
physics.flu-dyn
|
http://creativecommons.org/licenses/by/4.0/
|
We consider the influence of transverse confinement on the instability
properties of velocity and density distributions reminiscent of those
pertaining to exchange flows in stratified inclined ducts, such as the recent
experiment of Lefauve et al. (J. Fluid Mech. 848, 508-544, 2018). Using a
normal mode streamwise and temporal expansion for flows in ducts with various
aspect ratios $B$ and non-trivial transverse velocity profiles, we calculate
two-dimensional (2D) dispersion relations with associated eigenfunctions
varying in the 'crosswise' direction, in which the density varies, and the
spanwise direction, both normal to the duct walls and to the flow direction. We
also compare these 2D dispersion relations to the so-called one-dimensional
(1D) dispersion relation obtained for spanwise invariant perturbations, for
different aspect ratios $B$ and bulk Richardson numbers $Ri_b$. In this limited
parameter space, the presence of lateral walls has a stabilizing effect.
Furthermore, accounting for spanwise-varying perturbations results in a
plethora of unstable modes, the number of which increases as the aspect ratio
is increased. These modes present an odd-even regularity in their spatial
structures, which is rationalized by comparison to the so-called
one-dimensional oblique (1D-O) dispersion relation obtained for oblique waves.
Finally, we show that in most cases, the most unstable 2D mode is the one that
oscillates the least in the spanwise direction, as a consequence of viscous
damping. However, in a limited region of the parameter space and in the absence
of stratification, we show that a secondary mode with a more complex `twisted'
structure dominated by crosswise vorticity becomes more unstable than the least
oscillating Kelvin-Helmholtz mode associated with spanwise vorticity.
|
[{'version': 'v1', 'created': 'Thu, 29 Apr 2021 16:05:53 GMT'}
{'version': 'v2', 'created': 'Tue, 12 Oct 2021 15:40:37 GMT'}]
|
2021-10-13
|
[array(['Ducimetière', 'Yves-Marie', ''], dtype=object)
array(['Gallaire', 'François', ''], dtype=object)
array(['Lefauve', 'Adrien', ''], dtype=object)
array(['Caulfield', 'Colm-cille P.', ''], dtype=object)]
|
3,181 |
1604.02962
|
Daniel Gruss
|
Daniel Gruss, Kirill A. Velizhanin, Michael Zwolak
|
Landauer's formula with finite-time relaxation: Kramers' crossover in
electronic transport
|
16 pages, 5 figures
|
Sci. Rep. 6. 24514 (2016)
|
10.1038/srep24514
| null |
cond-mat.mes-hall cond-mat.quant-gas quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Landauer's formula is the standard theoretical tool to examine ballistic
transport in nano- and meso-scale junctions, but it necessitates that any
variation of the junction with time must be slow compared to characteristic
times of the system, e.g., the relaxation time of local excitations. Transport
through structurally dynamic junctions is, however, increasingly of interest
for sensing, harnessing fluctuations, and real-time control. Here, we calculate
the steady-state current when relaxation of electrons in the reservoirs is
present and demonstrate that it gives rise to three regimes of behavior: weak
relaxation gives a contact-limited current; strong relaxation localizes
electrons, distorting their natural dynamics and reducing the current; and in
an intermediate regime the Landauer view of the system only is recovered. We
also demonstrate that a simple equation of motion emerges, which is suitable
for efficiently simulating time-dependent transport.
|
[{'version': 'v1', 'created': 'Mon, 11 Apr 2016 14:03:07 GMT'}]
|
2016-04-25
|
[array(['Gruss', 'Daniel', ''], dtype=object)
array(['Velizhanin', 'Kirill A.', ''], dtype=object)
array(['Zwolak', 'Michael', ''], dtype=object)]
|
3,182 |
2208.14453
|
Zhengqi Gao
|
Zhengqi Gao, Xiangfeng Chen, Zhengxing Zhang, Uttara Chakraborty, Wim
Bogaerts, Duane S. Boning
|
Automatic Synthesis of Light Processing Functions for Programmable
Photonics: Theory and Realization
|
16 pages, accepted by Photonics Research (DOI will be added when
available)
| null | null | null |
cs.ET physics.optics
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Linear light processing functions (e.g., routing, splitting, filtering) are
key functions requiring configuration to implement on a programmable photonic
integrated circuit (PPIC). In recirculating waveguide meshes (which include
loop-backs), this is usually done manually. Some previous results describe
explorations to perform this task automatically, but their efficiency or
applicability is still limited. In this paper, we propose an efficient method
that can automatically realize configurations for many light processing
functions on a square-mesh PPIC. At its heart is an automatic differentiation
subroutine built upon analytical expressions of scattering matrices, that
enables gradient descent optimization for functional circuit synthesis. Similar
to the state-of-the-art synthesis techniques, our method can realize
configurations for a wide range of light processing functions, and multiple
functions on the same PPIC simultaneously. However, we do not need to separate
the functions spatially into different subdomains of the mesh, and the
resulting optimum can have multiple functions using the same part of the mesh.
Furthermore, compared to non-gradient or numerical differentiation based
methods, our proposed approach achieves 3x time reduction in computational
cost.
|
[{'version': 'v1', 'created': 'Tue, 30 Aug 2022 17:46:49 GMT'}
{'version': 'v2', 'created': 'Fri, 10 Feb 2023 22:56:28 GMT'}]
|
2023-02-14
|
[array(['Gao', 'Zhengqi', ''], dtype=object)
array(['Chen', 'Xiangfeng', ''], dtype=object)
array(['Zhang', 'Zhengxing', ''], dtype=object)
array(['Chakraborty', 'Uttara', ''], dtype=object)
array(['Bogaerts', 'Wim', ''], dtype=object)
array(['Boning', 'Duane S.', ''], dtype=object)]
|
3,183 |
2305.18830
|
Lanfeng Zhong
|
Lanfeng Zhong, Xin Liao, Shaoting Zhang and Guotai Wang
|
Semi-supervised Pathological Image Segmentation via Cross Distillation
of Multiple Attentions
|
Provisional Accepted by MICCAI 2023
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Segmentation of pathological images is a crucial step for accurate cancer
diagnosis. However, acquiring dense annotations of such images for training is
labor-intensive and time-consuming. To address this issue, Semi-Supervised
Learning (SSL) has the potential for reducing the annotation cost, but it is
challenged by a large number of unlabeled training images. In this paper, we
propose a novel SSL method based on Cross Distillation of Multiple Attentions
(CDMA) to effectively leverage unlabeled images. Firstly, we propose a
Multi-attention Tri-branch Network (MTNet) that consists of an encoder and a
three-branch decoder, with each branch using a different attention mechanism
that calibrates features in different aspects to generate diverse outputs.
Secondly, we introduce Cross Decoder Knowledge Distillation (CDKD) between the
three decoder branches, allowing them to learn from each other's soft labels to
mitigate the negative impact of incorrect pseudo labels in training.
Additionally, uncertainty minimization is applied to the average prediction of
the three branches, which further regularizes predictions on unlabeled images
and encourages inter-branch consistency. Our proposed CDMA was compared with
eight state-of-the-art SSL methods on the public DigestPath dataset, and the
experimental results showed that our method outperforms the other approaches
under different annotation ratios. The code is available at
\href{https://github.com/HiLab-git/CDMA}{https://github.com/HiLab-git/CDMA.}
|
[{'version': 'v1', 'created': 'Tue, 30 May 2023 08:23:07 GMT'}]
|
2023-05-31
|
[array(['Zhong', 'Lanfeng', ''], dtype=object)
array(['Liao', 'Xin', ''], dtype=object)
array(['Zhang', 'Shaoting', ''], dtype=object)
array(['Wang', 'Guotai', ''], dtype=object)]
|
3,184 |
2010.05878
|
Hsiang-Fu Yu
|
Hsiang-Fu Yu and Kai Zhong and Jiong Zhang and Wei-Cheng Chang and
Inderjit S. Dhillon
|
PECOS: Prediction for Enormous and Correlated Output Spaces
| null | null | null | null |
cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Many large-scale applications amount to finding relevant results from an
enormous output space of potential candidates. For example, finding the best
matching product from a large catalog or suggesting related search phrases on a
search engine. The size of the output space for these problems can range from
millions to billions, and can even be infinite in some applications. Moreover,
training data is often limited for the long-tail items in the output space.
Fortunately, items in the output space are often correlated thereby presenting
an opportunity to alleviate the data sparsity issue. In this paper, we propose
the Prediction for Enormous and Correlated Output Spaces (PECOS) framework, a
versatile and modular machine learning framework for solving prediction
problems for very large output spaces, and apply it to the eXtreme Multilabel
Ranking (XMR) problem: given an input instance, find and rank the most relevant
items from an enormous but fixed and finite output space. We propose a three
phase framework for PECOS: (i) in the first phase, PECOS organizes the output
space using a semantic indexing scheme, (ii) in the second phase, PECOS uses
the indexing to narrow down the output space by orders of magnitude using a
machine learned matching scheme, and (iii) in the third phase, PECOS ranks the
matched items using a final ranking scheme. The versatility and modularity of
PECOS allows for easy plug-and-play of various choices for the indexing,
matching, and ranking phases. We also develop very fast inference procedures
which allow us to perform XMR predictions in real time; for example, inference
takes less than 1 millisecond per input on the dataset with 2.8 million labels.
The PECOS software is available at https://libpecos.org.
|
[{'version': 'v1', 'created': 'Mon, 12 Oct 2020 17:27:43 GMT'}
{'version': 'v2', 'created': 'Tue, 18 Jan 2022 19:43:10 GMT'}]
|
2022-01-20
|
[array(['Yu', 'Hsiang-Fu', ''], dtype=object)
array(['Zhong', 'Kai', ''], dtype=object)
array(['Zhang', 'Jiong', ''], dtype=object)
array(['Chang', 'Wei-Cheng', ''], dtype=object)
array(['Dhillon', 'Inderjit S.', ''], dtype=object)]
|
3,185 |
1508.02698
|
Przemyslaw Koscik
|
Przemyslaw Koscik
|
Bipartite correlations in quantum resonance states
|
5 pages, 2 figures, Accepted by PLA
| null |
10.1016/j.physleta.2016.01.048
| null |
quant-ph cond-mat.quant-gas
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We discuss a diagonal representation of a reduced density matrix determined
within the framework of the complex scaling method. We also discuss a possible
measure of bipartite correlations in quantum resonance states. As an example,
we consider a one-dimensional system of two bosons with a contact interaction
subjected to an open potential well. The correlation properties of the
lowest-energy resonance state of the system are explored over a wide range of
the inter-boson interaction strength, including the Tonks-Girardeau regime.
|
[{'version': 'v1', 'created': 'Tue, 11 Aug 2015 19:21:54 GMT'}
{'version': 'v2', 'created': 'Thu, 13 Aug 2015 19:48:56 GMT'}
{'version': 'v3', 'created': 'Mon, 19 Oct 2015 13:33:32 GMT'}
{'version': 'v4', 'created': 'Thu, 17 Dec 2015 09:38:23 GMT'}
{'version': 'v5', 'created': 'Thu, 28 Jan 2016 13:01:30 GMT'}]
|
2020-01-07
|
[array(['Koscik', 'Przemyslaw', ''], dtype=object)]
|
3,186 |
astro-ph/0209316
|
Norbert S. Schulz
|
Norbert S. Schulz
|
Highly Resolved X-ray Spectra with Chandra: Dynamics of Neutral and
Ionized Matter
|
9 pages, 8 figures, to appear in the proceedings "XEUS - studying the
evolution of the hot hot universe", Garching, March 11-13, 2002, eds. G.
Hasinger, Th. Boller and A. Parmar, MPE Report
| null | null | null |
astro-ph
| null |
The High Energy Transmission Grating Spectrometer (HETGS) onboard the Chandra
X-ray Observatory has so far produced a large number of high resolution X-ray
spectra with unprecedented spectroscopic details. Spectra from outflows in
galactic and extragalactic X-ray sources indicate plasmas with a wide range of
properties. Optically thick fluorescent matter and warm photoionized regions
play as much a role as very hot regions where collisional ionization and
scattering dominate the emission. Through the measurements of blue- and
redshifts the complex dynamics of these plasmas is revealed. Quite intriguing
in this respect is the case of X-ray absorption of neutral matter. In many
cases spectral features are found to be of high complexity though the detection
of edges from intermediate Z elements as well as absorption lines from
monatomic species to molecular compounds. With the application of line
diagnostic tools and more accurate atomic data bases we are now able to model
the properties of these plasmas as well as measure line shifts and shapes to
constrain their spatial distribution and dynamics. In various examples, i.e.
plasmas from accretion disks, winds, stationary clouds as well as the ISM, the
power of highly resolved X-ray spectra is demonstrated and the scientific
capability of XEUS in this context is explored.
|
[{'version': 'v1', 'created': 'Mon, 16 Sep 2002 23:10:31 GMT'}]
|
2007-05-23
|
[array(['Schulz', 'Norbert S.', ''], dtype=object)]
|
3,187 |
1708.08029
|
Siyao Xu
|
Siyao Xu and Bing Zhang
|
Adiabatic non-resonant acceleration in magnetic turbulence and hard
spectra of gamma-ray bursts
|
5 pages, 2 figures; accepted for publication in ApJL
| null |
10.3847/2041-8213/aa88b1
| null |
astro-ph.HE hep-th physics.plasm-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We introduce a non-resonant acceleration mechanism arising from the second
adiabatic invariant in magnetic turbulence and apply it to study the prompt
emission spectra of gamma-ray bursts (GRBs). The mechanism contains both the
first- and second-order Fermi acceleration, originating from the interacting
turbulent reconnection and dynamo processes. It leads to a hard electron energy
distribution up to a cutoff energy at the balance between the acceleration and
synchrotron cooling. The sufficient acceleration rate ensures a rapid hardening
of any initial energy distribution to a power-law distribution with the index
$p \sim 1$, which naturally produces a low-energy photon index $\alpha \sim -1$
via the synchrotron radiation. For typical GRB parameters, the synchrotron
emission can extend to a characteristic photon energy on the order of $\sim
100$ keV.
|
[{'version': 'v1', 'created': 'Sun, 27 Aug 2017 00:52:54 GMT'}]
|
2017-09-20
|
[array(['Xu', 'Siyao', ''], dtype=object)
array(['Zhang', 'Bing', ''], dtype=object)]
|
3,188 |
astro-ph/9407062
|
Marc Kamionkowski
|
Marc Kamionkowski
|
Cosmic Microwave Background Anisotropies and the Geometry of the
Universe
|
(8 page uuencoded PostScript file), IASSNS-HEP-94/56. To appear in
the proceedings of the Case Western Reserve University CMB Workshop
| null | null | null |
astro-ph hep-ph
| null |
In this talk, I review some recent work on cosmic microwave background (CMB)
anisotropies in an open universe. I emphasize that the observed CMB
anisotropies are still consistent with a low value of $\Omega$, and I address
the question of whether future CMB measurements will be able to provide
information on the geometry of the Universe.
|
[{'version': 'v1', 'created': 'Wed, 20 Jul 1994 20:49:30 GMT'}]
|
2007-05-23
|
[array(['Kamionkowski', 'Marc', ''], dtype=object)]
|
3,189 |
2108.08251
|
Sven Jandura
|
Sven Jandura, Ernest Y.-Z. Tan
|
De Finetti Theorems for Quantum Conditional Probability Distributions
with Symmetry
|
30 pages
| null | null | null |
quant-ph
|
http://creativecommons.org/licenses/by/4.0/
|
The aim of device-independent quantum key distribution (DIQKD) is to study
protocols that allow the generation of a secret shared key between two parties
under minimal assumptions on the devices that produce the key. These devices
are merely modeled as black boxes and mathematically described as conditional
probability distributions. A major obstacle in the analysis of DIQKD protocols
is the huge space of possible black box behaviors. De Finetti theorems can help
to overcome this problem by reducing the analysis to black boxes that have an
iid structure. Here we show two new de Finetti theorems that relate conditional
probability distributions in the quantum set to de Finetti distributions
(convex combinations of iid distributions), that are themselves in the quantum
set. We also show how one of these de Finetti theorems can be used to enforce
some restrictions onto the attacker of a DIQKD protocol. Finally we observe
that some desirable strengthenings of this restriction, for instance to
collective attacks only, are not straightforwardly possible.
|
[{'version': 'v1', 'created': 'Wed, 18 Aug 2021 17:14:41 GMT'}]
|
2021-08-19
|
[array(['Jandura', 'Sven', ''], dtype=object)
array(['Tan', 'Ernest Y. -Z.', ''], dtype=object)]
|
3,190 |
quant-ph/0611035
|
Fabrizio Illuminati
|
S. M. Giampaolo, F. Illuminati, P. Verrucchi, S. De Siena
|
Determination of ground state properties in quantum spin systems by
single qubit unitary operations and entanglement excitation energies
|
To appear in Phys. Rev. A
|
Phys. Rev. A 77, 012319 (2008)
|
10.1103/PhysRevA.77.012319
| null |
quant-ph cond-mat.other
| null |
We introduce a method for analyzing ground state properties of quantum many
body systems, based on the characterization of separability and entanglement by
single subsystem unitary operations. We apply the method to the study of the
ground state structure of several interacting spin-1/2 models, described by
Hamiltonians with different degrees of symmetry. We show that the approach
based on single qubit unitary operations allows to introduce {\it
``entanglement excitation energies''}, a set of observables that can
characterize ground state properties, including the quantification of
single-site entanglement and the determination of quantum critical points. The
formalism allows to identify the existence and location of factorization
points, and a purely quantum {\it ``transition of entanglement''} that occurs
at the approach of factorization. This kind of quantum transition is
characterized by a diverging ratio of excitation energies associated to
single-qubit unitary operations.
|
[{'version': 'v1', 'created': 'Thu, 2 Nov 2006 21:04:18 GMT'}
{'version': 'v2', 'created': 'Mon, 6 Nov 2006 13:28:15 GMT'}
{'version': 'v3', 'created': 'Thu, 26 Jul 2007 09:09:57 GMT'}
{'version': 'v4', 'created': 'Fri, 21 Dec 2007 16:27:09 GMT'}]
|
2008-01-19
|
[array(['Giampaolo', 'S. M.', ''], dtype=object)
array(['Illuminati', 'F.', ''], dtype=object)
array(['Verrucchi', 'P.', ''], dtype=object)
array(['De Siena', 'S.', ''], dtype=object)]
|
3,191 |
hep-th/0011075
|
Jan Louis
|
Michael Haack, Jan Louis and Monika Marquart
|
Type IIA and Heterotic String Vacua in D=2
|
27 pages, changed referencing and made small changes
|
Nucl.Phys.B598:30-56,2001
|
10.1016/S0550-3213(00)00786-0
| null |
hep-th
| null |
We study type IIA string theory compactified on Calabi-Yau fourfolds and
heterotic string theory compactified on Calabi-Yau threefolds times a
two-torus. We derive the resulting effective theories which have two space-time
dimensions and preserve four supercharges. The duality between such vacua is
established at the level of the effective theory. For type IIA vacua with
non-trivial Ramond-Ramond background fluxes a superpotential is generated. We
show that for a specific choice of background fluxes and a fourfold which has
the structure of a threefold fibred over a sphere the superpotential coincides
with the superpotential recently proposed by Taylor and Vafa in
compactifications of type IIB string theory on a threefold.
|
[{'version': 'v1', 'created': 'Thu, 9 Nov 2000 18:49:26 GMT'}
{'version': 'v2', 'created': 'Mon, 20 Nov 2000 16:55:51 GMT'}]
|
2010-12-03
|
[array(['Haack', 'Michael', ''], dtype=object)
array(['Louis', 'Jan', ''], dtype=object)
array(['Marquart', 'Monika', ''], dtype=object)]
|
3,192 |
1704.00158
|
Ozsel Kilinc
|
Ozsel Kilinc, Ismail Uysal
|
Clustering-based Source-aware Assessment of True Robustness for Learning
Models
|
Submitted to UAI 2017
| null | null | null |
cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We introduce a novel validation framework to measure the true robustness of
learning models for real-world applications by creating source-inclusive and
source-exclusive partitions in a dataset via clustering. We develop a
robustness metric derived from source-aware lower and upper bounds of model
accuracy even when data source labels are not readily available. We clearly
demonstrate that even on a well-explored dataset like MNIST, challenging
training scenarios can be constructed under the proposed assessment framework
for two separate yet equally important applications: i) more rigorous learning
model comparison and ii) dataset adequacy evaluation. In addition, our findings
not only promise a more complete identification of trade-offs between model
complexity, accuracy and robustness but can also help researchers optimize
their efforts in data collection by identifying the less robust and more
challenging class labels.
|
[{'version': 'v1', 'created': 'Sat, 1 Apr 2017 11:58:24 GMT'}]
|
2017-04-04
|
[array(['Kilinc', 'Ozsel', ''], dtype=object)
array(['Uysal', 'Ismail', ''], dtype=object)]
|
3,193 |
1812.06641
|
Leo Girardin
|
L\'eo Girardin (UP11 UFR Sciences), Vincent Calvez (MMCS), Florence
D\'ebarre (IEES)
|
Catch me if you can: a spatial model for a brake-driven gene drive
reversal
| null | null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Population management using artificial gene drives (alleles biasing
inheritance, increasing their own transmission to offspring) is becoming a
realistic possibility with the development of CRISPR-Cas genetic engineering. A
gene drive may however have to be stopped. "Antidotes" (brakes) have been
suggested, but have been so far only studied in well-mixed populations. Here,
we consider a reaction--diffusion system modeling the release of a gene drive
(of fitness $1-a$) and a brake (fitness $1-b$, $b\leq a$) in a wild-type
population (fitness $1$). We prove that, whenever the drive fitness is at most
$1/2$ while the brake fitness is close to $1$, coextinction of the brake and
the drive occurs in the long run. On the contrary, if the drive fitness is
greater than $1/2$, then coextinction is impossible: the drive and the brake
keep spreading spatially, leaving in the invasion wake a complicated
spatio-temporally heterogeneous genetic pattern. Based on numerical
experiments, we argue in favor of a global coextinction conjecture provided the
drive fitness is at most $1/2$, irrespective of the brake fitness. The proof
relies upon the study of a related predator--prey system with strong Allee
effect on the prey. Our results indicate that some drives may be unstoppable,
and that, if gene drives are ever deployed in nature, threshold drives, that
only spread if introduced in high enough frequencies, should be preferred.
|
[{'version': 'v1', 'created': 'Mon, 17 Dec 2018 08:06:21 GMT'}
{'version': 'v2', 'created': 'Fri, 12 Jul 2019 12:22:52 GMT'}]
|
2019-07-15
|
[array(['Girardin', 'Léo', '', 'UP11 UFR Sciences'], dtype=object)
array(['Calvez', 'Vincent', '', 'MMCS'], dtype=object)
array(['Débarre', 'Florence', '', 'IEES'], dtype=object)]
|
3,194 |
2210.09394
|
Jaesung Yoo
|
Jaesung Yoo, Sunghyuk Choi, Ye Seul Yang, Suhyeon Kim, Jieun Choi,
Dongkyeong Lim, Yaeji Lim, Hyung Joon Joo, Dae Jung Kim, Rae Woong Park,
Hyeong-Jin Yoon, Kwangsoo Kim
|
Review Learning: Alleviating Catastrophic Forgetting with Generative
Replay without Generator
| null | null | null | null |
cs.AI cs.LG
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
When a deep learning model is sequentially trained on different datasets, it
forgets the knowledge acquired from previous data, a phenomenon known as
catastrophic forgetting. It deteriorates performance of the deep learning model
on diverse datasets, which is critical in privacy-preserving deep learning
(PPDL) applications based on transfer learning (TL). To overcome this, we
propose review learning (RL), a generative-replay-based continual learning
technique that does not require a separate generator. Data samples are
generated from the memory stored within the synaptic weights of the deep
learning model which are used to review knowledge acquired from previous
datasets. The performance of RL was validated through PPDL experiments.
Simulations and real-world medical multi-institutional experiments were
conducted using three types of binary classification electronic health record
data. In the real-world experiments, the global area under the receiver
operating curve was 0.710 for RL and 0.655 for TL. Thus, RL was highly
effective in retaining previously learned knowledge.
|
[{'version': 'v1', 'created': 'Mon, 17 Oct 2022 19:54:38 GMT'}]
|
2022-10-19
|
[array(['Yoo', 'Jaesung', ''], dtype=object)
array(['Choi', 'Sunghyuk', ''], dtype=object)
array(['Yang', 'Ye Seul', ''], dtype=object)
array(['Kim', 'Suhyeon', ''], dtype=object)
array(['Choi', 'Jieun', ''], dtype=object)
array(['Lim', 'Dongkyeong', ''], dtype=object)
array(['Lim', 'Yaeji', ''], dtype=object)
array(['Joo', 'Hyung Joon', ''], dtype=object)
array(['Kim', 'Dae Jung', ''], dtype=object)
array(['Park', 'Rae Woong', ''], dtype=object)
array(['Yoon', 'Hyeong-Jin', ''], dtype=object)
array(['Kim', 'Kwangsoo', ''], dtype=object)]
|
3,195 |
2207.02118
|
Yao Cheng
|
Yao Cheng
|
Local newforms for generic representations of unramified ${\rm
U}_{2n+1}$ and Rankin-Selberg integrals
|
34 pages. Substantially revised. In this revision, we in addition
compute the Rankin-Selberg integrals attached to newforms and oldforms under
a natural assumption on the $\gamma$-factors defined by these integrals
| null | null | null |
math.RT math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recently Atobe-Oi-Yasuda established the newform theory for irreducible
tempered generic representations of unramified ${\rm U}_{2n+1}$ over
non-archimedean local fields. In this paper we extend their result to every
irreducible generic representations and compute the dimensions of the spaces of
oldforms. We also compute the Rankin-Selberg integrals attached to newforms and
oldforms under a natural assumption on the $\gamma$-factors defined by these
integrals.
|
[{'version': 'v1', 'created': 'Tue, 5 Jul 2022 15:38:42 GMT'}
{'version': 'v2', 'created': 'Mon, 11 Jul 2022 16:51:41 GMT'}
{'version': 'v3', 'created': 'Thu, 16 Mar 2023 15:36:58 GMT'}]
|
2023-03-17
|
[array(['Cheng', 'Yao', ''], dtype=object)]
|
3,196 |
1705.06748
|
David Turner Dr.
|
D. G. Turner, G. Carraro, E. A. Panko
|
On the existence of young embedded clusters at high Galactic latitude
|
Accepted for publication (MNRAS)
| null |
10.1093/mnras/stx1258
| null |
astro-ph.GA astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Careful analyses of photometric and star count data available for the nine
putative young clusters identified by Camargo et al. (2015, 2016) at high
Galactic latitudes reveal that none of the groups contain early-type stars, and
most are not significant density enhancements above field level. 2MASS colours
for stars in the groups match those of unreddened late-type dwarfs and giants,
as expected for contamination by (mostly) thin disk objects. A simulation of
one such field using only typical high latitude foreground stars yields a
colour-magnitude diagram that is very similar to those constructed by Camargo
et al. (2015, 2016) as evidence for their young groups as well as the means of
deriving their reddenings and distances. Although some of the fields are
coincident with clusters of galaxies, one must conclude that there is no
evidence that the putative clusters are extremely young stellar groups.
|
[{'version': 'v1', 'created': 'Thu, 18 May 2017 18:00:15 GMT'}]
|
2017-06-28
|
[array(['Turner', 'D. G.', ''], dtype=object)
array(['Carraro', 'G.', ''], dtype=object)
array(['Panko', 'E. A.', ''], dtype=object)]
|
3,197 |
2211.10041
|
Wei-Ning Chen
|
Wei-Ning Chen, Ayfer \"Ozg\"ur, Graham Cormode, Akash Bharadwaj
|
The communication cost of security and privacy in federated frequency
estimation
| null | null | null | null |
cs.IT cs.DS math.IT
|
http://creativecommons.org/licenses/by/4.0/
|
We consider the federated frequency estimation problem, where each user holds
a private item $X_i$ from a size-$d$ domain and a server aims to estimate the
empirical frequency (i.e., histogram) of $n$ items with $n \ll d$. Without any
security and privacy considerations, each user can communicate its item to the
server by using $\log d$ bits. A naive application of secure aggregation
protocols would, however, require $d\log n$ bits per user. Can we reduce the
communication needed for secure aggregation, and does security come with a
fundamental cost in communication?
In this paper, we develop an information-theoretic model for secure
aggregation that allows us to characterize the fundamental cost of security and
privacy in terms of communication. We show that with security (and without
privacy) $\Omega\left( n \log d \right)$ bits per user are necessary and
sufficient to allow the server to compute the frequency distribution. This is
significantly smaller than the $d\log n$ bits per user needed by the naive
scheme, but significantly higher than the $\log d$ bits per user needed without
security. To achieve differential privacy, we construct a linear scheme based
on a noisy sketch which locally perturbs the data and does not require a
trusted server (a.k.a. distributed differential privacy). We analyze this
scheme under $\ell_2$ and $\ell_\infty$ loss. By using our
information-theoretic framework, we show that the scheme achieves the optimal
accuracy-privacy trade-off with optimal communication cost, while matching the
performance in the centralized case where data is stored in the central server.
|
[{'version': 'v1', 'created': 'Fri, 18 Nov 2022 05:40:28 GMT'}]
|
2022-11-21
|
[array(['Chen', 'Wei-Ning', ''], dtype=object)
array(['Özgür', 'Ayfer', ''], dtype=object)
array(['Cormode', 'Graham', ''], dtype=object)
array(['Bharadwaj', 'Akash', ''], dtype=object)]
|
3,198 |
1901.08363
|
Krishnamoorthy Iyer
|
Krishnamoorthy Iyer
|
Dispensing with Noise Forward in the "Weak" Relay-Eavesdropper Channel
|
Submitted to CISS2019 on December 10, 2018
| null | null | null |
cs.IT math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The "weak" relay-eavesdropper channel was first studied by Lai and El Gamal,
whose achievable scheme introduced noise forwarding (NF) and used backward
decoding. We suggest a novel sliding window decoding scheme with a two block
decoding delay, where the relay uses compress-forward with Wyner-Ziv (WZ)
binning but does not use NF. Wireless engineers will welcome the reduced
decoding delay. Sliding window decoding mandates multiblock equivocation
calculations; dispensing with NF enables it. We identify nine regimes and
develop a case-by-case choice of relay channel codebook and WZ bin sizes to
maximize the secrecy rate. The multiblock equivocation calculations may be of
independent interest.
|
[{'version': 'v1', 'created': 'Thu, 24 Jan 2019 11:36:05 GMT'}]
|
2019-01-25
|
[array(['Iyer', 'Krishnamoorthy', ''], dtype=object)]
|
3,199 |
1807.07680
|
Haihao Lu
|
Haihao Lu and Robert M. Freund
|
Generalized Stochastic Frank-Wolfe Algorithm with Stochastic
"Substitute" Gradient for Structured Convex Optimization
| null | null | null | null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The stochastic Frank-Wolfe method has recently attracted much general
interest in the context of optimization for statistical and machine learning
due to its ability to work with a more general feasible region. However, there
has been a complexity gap in the guaranteed convergence rate for stochastic
Frank-Wolfe compared to its deterministic counterpart. In this work, we present
a new generalized stochastic Frank-Wolfe method which closes this gap for the
class of structured optimization problems encountered in statistical and
machine learning characterized by empirical loss minimization with a certain
type of ``linear prediction'' property (formally defined in the paper), which
is typically present loss minimization problems in practice. Our method also
introduces the notion of a ``substitute gradient'' that is a
not-necessarily-unbiased sample of the gradient. We show that our new method is
equivalent to a particular randomized coordinate mirror descent algorithm
applied to the dual problem, which in turn provides a new interpretation of
randomized dual coordinate descent in the primal space. Also, in the special
case of a strongly convex regularizer our generalized stochastic Frank-Wolfe
method (as well as the randomized dual coordinate descent method) exhibits
linear convergence. Furthermore, we present computational experiments that
indicate that our method outperforms other stochastic Frank-Wolfe methods
consistent with the theory developed herein.
|
[{'version': 'v1', 'created': 'Fri, 20 Jul 2018 01:05:50 GMT'}
{'version': 'v2', 'created': 'Thu, 26 Jul 2018 15:40:14 GMT'}
{'version': 'v3', 'created': 'Fri, 7 Sep 2018 20:54:22 GMT'}
{'version': 'v4', 'created': 'Sat, 29 Jun 2019 14:38:46 GMT'}
{'version': 'v5', 'created': 'Tue, 5 Nov 2019 03:28:15 GMT'}]
|
2019-11-06
|
[array(['Lu', 'Haihao', ''], dtype=object)
array(['Freund', 'Robert M.', ''], dtype=object)]
|
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