Unnamed: 0
int64 0
20k
| id
stringlengths 9
16
| submitter
stringlengths 1
50
⌀ | authors
stringlengths 5
15.2k
| title
stringlengths 7
294
| comments
stringlengths 1
682
⌀ | journal-ref
stringlengths 4
256
⌀ | doi
stringlengths 13
133
⌀ | report-no
stringlengths 2
187
⌀ | categories
stringlengths 5
90
| license
stringclasses 9
values | abstract
stringlengths 21
2.62k
| versions
stringlengths 62
2.35k
| update_date
stringlengths 10
10
| authors_parsed
stringlengths 39
44.4k
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5,100 |
1911.09722
|
A Lakshmi
|
Lakshmi Annamalai, Anirban Chakraborty and Chetan Singh Thakur
|
EvAn: Neuromorphic Event-based Anomaly Detection
| null | null | null | null |
stat.ML cs.LG eess.IV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Event-based cameras are bio-inspired novel sensors that asynchronously record
changes in illumination in the form of events, thus resulting in significant
advantages over conventional cameras in terms of low power utilization, high
dynamic range, and no motion blur. Moreover, such cameras, by design, encode
only the relative motion between the scene and the sensor (and not the static
background) to yield a very sparse data structure, which can be utilized for
various motion analytics tasks. In this paper, for the first time in event data
analytics community, we leverage these advantages of an event camera towards a
critical vision application - video anomaly detection. We propose to model the
motion dynamics in the event domain with dual discriminator conditional
Generative adversarial Network (cGAN) built on state-of-the-art architectures.
To adapt event data for using as input to cGAN, we also put forward a deep
learning solution to learn a novel representation of event data, which retains
the sparsity of the data as well as encode the temporal information readily
available from these sensors. Since there is no existing dataset for anomaly
detection in event domain, we also provide an anomaly detection event dataset
with an exhaustive set of anomalies. Careful analysis reveals that the proposed
method results in huge reduction in computational complexity as compared to
previous state-of-the-art conventional anomaly detection networks.
|
[{'version': 'v1', 'created': 'Thu, 21 Nov 2019 19:43:51 GMT'}
{'version': 'v2', 'created': 'Sat, 15 Feb 2020 19:23:42 GMT'}]
|
2020-02-18
|
[array(['Annamalai', 'Lakshmi', ''], dtype=object)
array(['Chakraborty', 'Anirban', ''], dtype=object)
array(['Thakur', 'Chetan Singh', ''], dtype=object)]
|
5,101 |
1106.5130
|
Mladen Kova\v{c}evi\'c
|
Mladen Kova\v{c}evi\'c, Ivan Stanojevi\'c, Vojin \v{S}enk
|
Some Properties of R\'{e}nyi Entropy over Countably Infinite Alphabets
|
13 pages (single-column)
|
Probl. Inf. Transm., vol. 49, no. 2, pp. 99-110, Apr. 2013
|
10.1134/S0032946013020014
| null |
cs.IT math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we study certain properties of R\'{e}nyi entropy functionals
$H_\alpha(\mathcal{P})$ on the space of probability distributions over
$\mathbb{Z}_+$. Primarily, continuity and convergence issues are addressed.
Some properties shown parallel those known in the finite alphabet case, while
others illustrate a quite different behaviour of R\'enyi entropy in the
infinite case. In particular, it is shown that, for any distribution $\mathcal
P$ and any $r\in[0,\infty]$, there exists a sequence of distributions
$\mathcal{P}_n$ converging to $\mathcal{P}$ with respect to the total variation
distance, such that $\lim_{n\to\infty}\lim_{\alpha\to{1+}}
H_\alpha(\mathcal{P}_n) = \lim_{\alpha\to{1+}}\lim_{n\to\infty}
H_\alpha(\mathcal{P}_n) + r$.
|
[{'version': 'v1', 'created': 'Sat, 25 Jun 2011 13:49:45 GMT'}
{'version': 'v2', 'created': 'Wed, 27 Feb 2013 15:36:35 GMT'}]
|
2020-08-13
|
[array(['Kovačević', 'Mladen', ''], dtype=object)
array(['Stanojević', 'Ivan', ''], dtype=object)
array(['Šenk', 'Vojin', ''], dtype=object)]
|
5,102 |
1806.01678
|
Nate Veldt
|
Nate Veldt and David Gleich and Anthony Wirth and James Saunderson
|
A Projection Method for Metric-Constrained Optimization
| null | null | null | null |
cs.NA cs.LG stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We outline a new approach for solving optimization problems which enforce
triangle inequalities on output variables. We refer to this as
metric-constrained optimization, and give several examples where problems of
this form arise in machine learning applications and theoretical approximation
algorithms for graph clustering. Although these problem are interesting from a
theoretical perspective, they are challenging to solve in practice due to the
high memory requirement of black-box solvers. In order to address this
challenge we first prove that the metric-constrained linear program relaxation
of correlation clustering is equivalent to a special case of the metric
nearness problem. We then developed a general solver for metric-constrained
linear and quadratic programs by generalizing and improving a simple projection
algorithm originally developed for metric nearness. We give several novel
approximation guarantees for using our framework to find lower bounds for
optimal solutions to several challenging graph clustering problems. We also
demonstrate the power of our framework by solving optimizing problems involving
up to 10^{8} variables and 10^{11} constraints.
|
[{'version': 'v1', 'created': 'Tue, 5 Jun 2018 13:25:30 GMT'}]
|
2018-06-06
|
[array(['Veldt', 'Nate', ''], dtype=object)
array(['Gleich', 'David', ''], dtype=object)
array(['Wirth', 'Anthony', ''], dtype=object)
array(['Saunderson', 'James', ''], dtype=object)]
|
5,103 |
1001.1347
|
Stephane Menozzi
|
Vincent Lemaire (PMA), Stephane Menozzi (PMA)
|
On some Non Asymptotic Bounds for the Euler Scheme
|
26 pages
|
Electronic Journal of Probability, Institute of Mathematical
Statistics (IMS), 2010, pp.1645-1681
|
10.1214/EJP.v15-814
| null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We obtain non asymptotic bounds for the Monte Carlo algorithm associated to
the Euler discretization of some diffusion processes. The key tool is the
Gaussian concentration satisfied by the density of the discretization scheme.
This Gaussian concentration is derived from a Gaussian upper bound of the
density of the scheme and a modification of the so-called "Herbst argument"
used to prove Logarithmic Sobolev inequalities. We eventually establish a
Gaussian lower bound for the density of the scheme that emphasizes the
concentration is sharp.
|
[{'version': 'v1', 'created': 'Fri, 8 Jan 2010 19:44:05 GMT'}]
|
2018-02-20
|
[array(['Lemaire', 'Vincent', '', 'PMA'], dtype=object)
array(['Menozzi', 'Stephane', '', 'PMA'], dtype=object)]
|
5,104 |
gr-qc/9711066
|
Eanna E. Flanagan
|
Eanna E. Flanagan (Cornell University)
|
Quantum mechanical instabilities of Cauchy horizons in two dimensions -
a modified form of the blueshift instability mechanism
|
20 pages (including 4 eps figures), RevTex. Uses psfig.tex. To be
published in the proceedings of the workshop on ``The Internal Structure of
Black Holes and Spacetime Singularities", held at the Technion -- Israel
Institute of Technology, Haifa, Israel. June 29 - July 3, 1997
| null | null | null |
gr-qc hep-th
| null |
There are several examples known of two dimensional spacetimes which are
linearly stable when perturbed by test scalar classical fields, but which are
unstable when perturbed by test scalar quantum fields. We elucidate the
mechanism behind such instabilities by considering minimally coupled, massless,
scalar, test quantum fields on general two dimensional spacetimes with Cauchy
horizons which are classically stable. We identify a geometric feature of such
spacetimes which is a necessary condition for obtaining a quantum mechanical
divergence of the renormalized expected stress tensor on the Cauchy horizon for
regular initial states. This feature is the divergence of the affine parameter
length of a one parameter family of null geodesics which lie parallel to the
Cauchy horizon, where the affine parameter normalization is determined by
parallel transport along a fixed, transverse null geodesic which intersects the
Cauchy horizon. (By contrast, the geometric feature of such spacetimes which
underlies classical blueshift instabilities is the divergence of a holonomy
operator). We show that the instability can be understood as a ``delayed
blueshift'' instability, which arises from the infinite blueshifting of an
energy flux which is created locally and quantum mechanically. The instability
mechanism applies both to chronology horizons in spacetimes with closed
timelike curves, and to the inner horizon in black hole spacetimes like two
dimensional Reissner-Nordstrom-de Sitter.
|
[{'version': 'v1', 'created': 'Fri, 21 Nov 1997 20:05:16 GMT'}]
|
2007-05-23
|
[array(['Flanagan', 'Eanna E.', '', 'Cornell University'], dtype=object)]
|
5,105 |
2004.11325
|
Sahar Rahbar
|
Sahar Rahbar
|
Mathematical and Preclinical Investigation of Respiratory Sinus
Arrhythmia Effects on Cardiac Output
| null | null | null | null |
q-bio.TO math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Respiratory sinus arrhythmia (RSA) is heart rate variability in synchrony
with respiration although its functional significance not clear. The loss of
sinus arrhythmia may indicate underlying heart failure or disease; therefore,
there would be a great advantage of knowing how it works and affects the
cardio-respiratory system, especially by providing a mathematical model. To
this end, Windkessel model and cardiovascular partial differential equations
are used to obtain cardiac output based on the elasticity of left ventricle,
which is related to RSA. By solving the corresponding equations, it would be
possible to propose a new model to predict the RSA effects on cardiac output.
|
[{'version': 'v1', 'created': 'Thu, 23 Apr 2020 17:19:44 GMT'}]
|
2020-04-24
|
[array(['Rahbar', 'Sahar', ''], dtype=object)]
|
5,106 |
2109.11753
|
Noritomo Kozima
|
Noritomo Kozima
|
Pullback formula for vector valued Siegel modular forms and its
applications
| null | null | null | null |
math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $E_n$ be the Siegel Eisenstein series of degree $n$ and weight $k$ with a
complex parameter $s$. In this paper, using a differential operator $D$ by
Ibukiyama which sends a scalar valued Siegel modular form to the tensor product
of two vector valued Siegel modular forms, under a certain condition, we give a
formula of $DE_{p+q}$ on $H_p\times H_q$, where $H_n$ is the Siegel upper half
space of degree $n$. Furthermore, we give some applications of this formula,
i.e., analytic properies of standard $L$-functions and the Klingen Eisenstein
series and algebraicity results for Siegel modular forms and standard
$L$-functions.
|
[{'version': 'v1', 'created': 'Fri, 24 Sep 2021 05:51:21 GMT'}]
|
2021-09-27
|
[array(['Kozima', 'Noritomo', ''], dtype=object)]
|
5,107 |
2005.10694
|
Griselda Figueroa Aguirre
|
Ernesto F. Eiroa, Griselda Figueroa-Aguirre
|
Thin shells in F(R) gravity with non-constant scalar curvature
|
17 pages, 4 figures; v2: extended and improved version, new
references added
|
Eur. Phys. J. Plus (2020) 135:774
|
10.1140/epjp/s13360-020-00793-y
| null |
gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We introduce two classes of spherically symmetric spacetimes having a thin
shell of matter, in non-quadratic F(R) theories of gravity with non-constant
scalar curvature R. In the first, the thin shell joins an inner region with an
outer one, while in the second it corresponds to the throat of a wormhole. In
both scenarios, we analyze the stability of the static configurations under
radial perturbations. As particular examples in spacetimes with a cosmological
constant, we present charged thin shells surrounding a non-charged black hole
and charged thin-shell wormholes. We show that in both cases stable solutions
are possible for suitable values of the parameters.
|
[{'version': 'v1', 'created': 'Thu, 21 May 2020 14:35:53 GMT'}
{'version': 'v2', 'created': 'Tue, 6 Oct 2020 13:48:48 GMT'}]
|
2020-10-07
|
[array(['Eiroa', 'Ernesto F.', ''], dtype=object)
array(['Figueroa-Aguirre', 'Griselda', ''], dtype=object)]
|
5,108 |
hep-th/9903010
|
Michael Gutperle
|
Michael Gutperle
|
A note on heterotic/type I' duality and D0 brane quantum mechanics
|
16 pages, harvmac, no figures, v2: references added, typos and eq.
(4.16) corrected, v3: typos fixed and one reference added, version to appear
in JHEP
|
JHEP 9905:007,1999
|
10.1088/1126-6708/1999/05/007
|
PUPT-1841
|
hep-th
| null |
In this note a simple calculation of one loop threshold corrections for the
SO(32) heterotic string is performed. In particular the compactification on T^2
with a Wilson line breaking the gauge group to SO(16) x SO(16) is considered.
Using heterotic type I duality, these corrections can be related to quantities
appearing in the quantum mechanics of type I' D0 particles.
|
[{'version': 'v1', 'created': 'Mon, 1 Mar 1999 21:17:45 GMT'}
{'version': 'v2', 'created': 'Thu, 4 Mar 1999 22:58:34 GMT'}
{'version': 'v3', 'created': 'Thu, 6 May 1999 14:53:20 GMT'}]
|
2010-11-19
|
[array(['Gutperle', 'Michael', ''], dtype=object)]
|
5,109 |
1303.1835
|
Simon Brain
|
Simon Brain
|
The Noncommutative Topology of Anti-Self-Dual Gauge Fields
|
25 pages, no figures; v2 typos corrected, refs updated
| null |
10.1016/j.geomphys.2013.03.019
| null |
math-ph hep-th math.MP math.QA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Through techniques afforded by $C^*$-algebras and Hilbert modules, we study
the topology of spaces which parametrize families of instanton gauge fields on
noncommutative Euclidean four-spheres $S^4_\sigma$. By deforming the ADHM
construction of instantons on the classical sphere $S^4$, we obtain families of
instantons on the quantum sphere which are naturally parametrized by
noncommutative topological spaces. Using the internal gauge theory of
$S^4_\sigma$ determined by the inner automorphisms of its function algebra, we
find that one may always recover a classical parameter space by making a
suitable choice of internal gauge.
|
[{'version': 'v1', 'created': 'Thu, 7 Mar 2013 21:45:06 GMT'}
{'version': 'v2', 'created': 'Thu, 9 May 2013 16:55:53 GMT'}]
|
2013-05-10
|
[array(['Brain', 'Simon', ''], dtype=object)]
|
5,110 |
0905.0321
|
Yaron Bromberg
|
Ori Katz, Yaron Bromberg, Yaron Silberberg
|
Compressive ghost imaging
|
Comments are welcome
| null |
10.1063/1.3238296
| null |
quant-ph physics.optics
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We describe an advanced image reconstruction algorithm for pseudothermal
ghost imaging, reducing the number of measurements required for image recovery
by an order of magnitude. The algorithm is based on compressed sensing, a
technique that enables the reconstruction of an N-pixel image from much less
than N measurements. We demonstrate the algorithm using experimental data from
a pseudothermal ghost-imaging setup. The algorithm can be applied to data taken
from past pseudothermal ghost-imaging experiments, improving the
reconstruction's quality.
|
[{'version': 'v1', 'created': 'Mon, 4 May 2009 18:44:21 GMT'}
{'version': 'v2', 'created': 'Sun, 9 Aug 2009 23:01:05 GMT'}]
|
2015-05-13
|
[array(['Katz', 'Ori', ''], dtype=object)
array(['Bromberg', 'Yaron', ''], dtype=object)
array(['Silberberg', 'Yaron', ''], dtype=object)]
|
5,111 |
1512.01241
|
Nikhil Padmanabhan
|
Nikhil Padmanabhan, Martin White, Harrison H. Zhou, Ross O'Connell
|
Estimating sparse precision matrices
|
11 pages, 14 figures, submitted to MNRAS
| null |
10.1093/mnras/stw1042
| null |
astro-ph.IM astro-ph.CO stat.ME
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We apply a method recently introduced to the statistical literature to
directly estimate the precision matrix from an ensemble of samples drawn from a
corresponding Gaussian distribution. Motivated by the observation that
cosmological precision matrices are often approximately sparse, the method
allows one to exploit this sparsity of the precision matrix to more quickly
converge to an asymptotic 1/sqrt(Nsim) rate while simultaneously providing an
error model for all of the terms. Such an estimate can be used as the starting
point for further regularization efforts which can improve upon the
1/sqrt(Nsim) limit above, and incorporating such additional steps is
straightforward within this framework. We demonstrate the technique with toy
models and with an example motivated by large-scale structure two-point
analysis, showing significant improvements in the rate of convergence.For the
large-scale structure example we find errors on the precision matrix which are
factors of 5 smaller than for the sample precision matrix for thousands of
simulations or, alternatively, convergence to the same error level with more
than an order of magnitude fewer simulations.
|
[{'version': 'v1', 'created': 'Thu, 3 Dec 2015 21:00:14 GMT'}]
|
2016-05-25
|
[array(['Padmanabhan', 'Nikhil', ''], dtype=object)
array(['White', 'Martin', ''], dtype=object)
array(['Zhou', 'Harrison H.', ''], dtype=object)
array(["O'Connell", 'Ross', ''], dtype=object)]
|
5,112 |
2206.00572
|
Wen-An Yong
|
Huang Qian, Chen Yihong, Yong Wen-An
|
Discrete-velocity-direction models of BGK-type with minimum entropy: I.
Basic idea
|
22 pages, 9 figures
| null | null | null |
physics.comp-ph cs.NA math.NA
|
http://creativecommons.org/licenses/by/4.0/
|
In this series of works, we develop a discrete-velocity-direction model
(DVDM) with collisions of BGK-type for simulating rarefied flows. Unlike the
conventional kinetic models (both BGK and discrete-velocity models), the new
model restricts the transport to finite fixed directions but leaves the
transport speed to be a 1-D continuous variable. Analogous to the BGK equation,
the discrete equilibriums of the model are determined by minimizing a discrete
entropy. In this first paper, we introduce the DVDM and investigate its basic
properties, including the existence of the discrete equilibriums and the
$H$-theorem. We also show that the discrete equilibriums can be efficiently
obtained by solving a convex optimization problem. The proposed model provides
a new way in choosing discrete velocities for the computational practice of the
conventional discrete-velocity methodology. It also facilitates a convenient
multidimensional extension of the extended quadrature method of moments. We
validate the model with numerical experiments for two benchmark problems at
moderate computational costs.
|
[{'version': 'v1', 'created': 'Wed, 1 Jun 2022 15:33:22 GMT'}]
|
2022-06-02
|
[array(['Qian', 'Huang', ''], dtype=object)
array(['Yihong', 'Chen', ''], dtype=object)
array(['Wen-An', 'Yong', ''], dtype=object)]
|
5,113 |
1810.08536
|
Erdo\u{g}an \c{S}en Dr.
|
Erdo\u{g}an \c{S}en
|
Traces and inverse nodal problems for a class of Sturm-Liouville
operators with retarded argument
|
presented partially at International Conference in Functional
Analysis (Banach125). 13 pages
| null | null | null |
math.CA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this study, we investigate the traces and solutions of inverse nodal
problems of discontinuous Sturm-Liouville operators with retarded argument and
with a finite number of transmission conditions.
|
[{'version': 'v1', 'created': 'Sun, 14 Oct 2018 09:59:06 GMT'}]
|
2018-10-22
|
[array(['Şen', 'Erdoğan', ''], dtype=object)]
|
5,114 |
astro-ph/0111429
|
Dima Yakovlev
|
A.D. Kaminker, D.G. Yakovlev (Ioffe Institute, St.-Petersburg), O.Y.
Gnedin (Space Telescope Science Institute, Baltimore)
|
Three Types of Cooling Superfluid Neutron Stars: Theory and Observations
|
12 pages, 10 figures, Astron. Astrophys., submitted
|
Astron. Astrophys. 383 (2002) 1076
|
10.1051/0004-6361:20011797
| null |
astro-ph
| null |
Cooling of neutron stars (NSs) with the cores composed of neutrons, protons,
and electrons is simulated assuming $^1$S$_0$ pairing of neutrons in the NS
crust, and also $^1$S$_0$ pairing of protons and weak $^3$P$_2$ pairing of
neutrons in the NS core, and using realistic density profiles of the superfluid
critical temperatures $T_{\rm c}(\rho)$. The theoretical cooling models of
isolated middle-aged NSs can be divided into three main types. (I) {\it
Low-mass}, {\it slowly cooling} NSs where the direct Urca process of neutrino
emission is either forbidden or almost fully suppressed by the proton
superfluidity. (II) {\it Medium-mass} NSs which show {\it moderate} cooling via
the direct Urca process suppressed by the proton superfluidity. (III) {\it
Massive} NSs which show {\it fast} cooling via the direct Urca process weakly
suppressed by superfluidity. Confronting the theory with observations we treat
RX J0822--43, PSR 1055--52 and RX J1856--3754 as slowly cooling NSs. To explain
these sufficiently warm sources we need a density profile $T_{\rm c}(\rho)$ in
the crust with a rather high and flat maximum and sharp wings. We treat 1E
1207--52, RX J0002+62, PSR 0656+14, Vela, and Geminga as moderately cooling
NSs. We can determine their masses for a given model of proton superfluidity,
$T_{\rm cp}(\rho)$, and the equation of state in the NS core. No rapidly
cooling NS has been observed so far.
|
[{'version': 'v1', 'created': 'Wed, 21 Nov 2001 22:00:41 GMT'}]
|
2009-11-07
|
[array(['Kaminker', 'A. D.', '', 'Ioffe Institute, St.-Petersburg'],
dtype=object)
array(['Yakovlev', 'D. G.', '', 'Ioffe Institute, St.-Petersburg'],
dtype=object)
array(['Gnedin', 'O. Y.', '',
'Space Telescope Science Institute, Baltimore'], dtype=object)]
|
5,115 |
2102.10483
|
Subham Roy Mr.
|
Avijit Mukherjee, Subham B Roy
|
Birkhoffs Theorem and Lie Symmetry Analysis
| null | null | null | null |
gr-qc math-ph math.MP
|
http://creativecommons.org/licenses/by/4.0/
|
Three dimensional space is said to be spherically symmetric if it admits
SO(3) as the group of isometries. Under this symmetry condition, the Einsteins
Field equations for vacuum, yields the Schwarzschild Metric as the unique
solution, which essentially is the statement of the well known Birkhoffs
Theorem. Geometrically speaking this theorem claims that the pseudo-Riemanian
space-times provide more isometries than expected from the original metric
holonomy/ansatz. In this paper we use the method of Lie Symmetry Analysis to
analyze the Einsteins Vacuum Field Equations so as to obtain the Symmetry
Generators of the corresponding Differential Equation. Additionally, applying
the Noether Point Symmetry method we have obtained the conserved quantities
corresponding to the generators of the Schwarzschild Lagrangian and paving way
to reformulate the Birkhoffs Theorem from a different approach.
|
[{'version': 'v1', 'created': 'Sun, 21 Feb 2021 00:47:22 GMT'}]
|
2021-02-23
|
[array(['Mukherjee', 'Avijit', ''], dtype=object)
array(['Roy', 'Subham B', ''], dtype=object)]
|
5,116 |
2010.13249
|
Benjamin Przybocki
|
Xiaoyu He, Yuzu Ido, and Benjamin Przybocki
|
Hat Guessing on Books and Windmills
| null | null | null | null |
math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The hat-guessing number is a graph invariant defined by Butler, Hajiaghayi,
Kleinberg, and Leighton. We determine the hat-guessing number exactly for book
graphs with sufficiently many pages, improving previously known lower bounds of
He and Li and exactly matching an upper bound of Gadouleau. We prove that the
hat-guessing number of $K_{3,3}$ is $3$, making this the first complete
bipartite graph $K_{n,n}$ for which the hat-guessing number is known to be
smaller than the upper bound of $n+1$ of Gadouleau and Georgiou. Finally, we
determine the hat-guessing number of windmill graphs for most choices of
parameters.
|
[{'version': 'v1', 'created': 'Sun, 25 Oct 2020 23:24:08 GMT'}]
|
2020-10-27
|
[array(['He', 'Xiaoyu', ''], dtype=object)
array(['Ido', 'Yuzu', ''], dtype=object)
array(['Przybocki', 'Benjamin', ''], dtype=object)]
|
5,117 |
1903.10626
|
Milena \v{C}uki\'c Dr
|
Milena Cukic
|
The role of physiological complexity changes in resting-state EEG in
clinical effectiveness of rTMS and tDCS in treatments of resistant depression
|
26 pages, 7 figures
|
Frontiers in Psychology, section Neuropsychology,Volume 10,
Article 2923. 10 December 2019
|
10.3389/fpsyg.2019.02923
| null |
q-bio.NC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The present literature about possible mechanisms behind the effectivity of
noninvasive electromagnetic stimulation in major depressive disorder (MDD) is
not very rich. Despite extensive research in applications for clinical
practice, the exact effects are yet not clear. We are comparing our previous
results about the complexity changes induced by repetitive Transcranial
Magnetic Stimulation (rTMS), and transcranial direct current stimulation (tDCS)
which are known to modulate neural dynamics. Also, we are reviewing different
biomarkers of complexity changes connected to depression, and how they change
with the stimulation. TDCS is low-intensity TES, known to have polarity
specific effects (neuromodulatory effects), and rTMS is inducing an electric
field in the tissue circumstantially via Faraday's law. Both nonlinear
modalities of electromagnetic stimulation may affect the levels of
physiological complexity in the brain. We also compare the changes of
complexity in electroencephalogram (EEG) and electrocardiogram (ECG), as
potential future predictors of therapy outcome.
|
[{'version': 'v1', 'created': 'Mon, 25 Mar 2019 23:06:22 GMT'}]
|
2019-12-19
|
[array(['Cukic', 'Milena', ''], dtype=object)]
|
5,118 |
1705.08993
|
Xian Wu
|
X. Wu, J. L. Long, H. S. Ku, R. E. Lake, M. Bal and D. P. Pappas
|
Overlap junctions for high coherence superconducting qubits
|
4 pages, 3 figures
| null |
10.1063/1.4993937
| null |
cond-mat.supr-con quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Fabrication of sub-micron Josephson junctions is demonstrated using standard
processing techniques for high-coherence, superconducting qubits. These
junctions are made in two separate lithography steps with normal-angle
evaporation. Most significantly, this work demonstrates that it is possible to
achieve high coherence with junctions formed on aluminum surfaces cleaned in
situ with Ar milling before the junction oxidation. This method eliminates the
angle-dependent shadow masks typically used for small junctions. Therefore,
this is conducive to the implementation of typical methods for improving
margins and yield using conventional CMOS processing. The current method uses
electron-beam lithography and an additive process to define the top and bottom
electrodes. Extension of this work to optical lithography and subtractive
processes is discussed.
|
[{'version': 'v1', 'created': 'Wed, 24 May 2017 22:56:28 GMT'}]
|
2017-08-02
|
[array(['Wu', 'X.', ''], dtype=object)
array(['Long', 'J. L.', ''], dtype=object)
array(['Ku', 'H. S.', ''], dtype=object)
array(['Lake', 'R. E.', ''], dtype=object)
array(['Bal', 'M.', ''], dtype=object)
array(['Pappas', 'D. P.', ''], dtype=object)]
|
5,119 |
0904.2169
|
Peter Athron
|
P. Athron (1), S. F. King (2), D. J. Miller (3), S. Moretti (2 and 4)
and R. Nevzorov (3) ((1) TU Dresden, (2) University of Southampton, (3)
University of Glasgow, (4) Universita' degli Studi di Torino)
|
The Constrained Exceptional Supersymmetric Standard Model
|
Version accepted for publication in Phys. Rev. D
|
Phys.Rev.D80:035009,2009
|
10.1103/PhysRevD.80.035009
|
DFTT 38/2009
|
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We propose and study a constrained version of the Exceptional Supersymmetric
Standard Model (E6SSM), which we call the cE6SSM, based on a universal high
energy scalar mass m_0, trilinear scalar coupling A_0 and gaugino mass M_{1/2}.
We derive the Renormalisation Group (RG) Equations for the cE6SSM, including
the extra U(1)_{N} gauge factor and the low energy matter content involving
three 27 representations of E6. We perform a numerical RG analysis for the
cE6SSM, imposing the usual low energy experimental constraints and successful
Electro-Weak Symmetry Breaking (EWSB). Our analysis reveals that the sparticle
spectrum of the cE6SSM involves a light gluino, two light neutralinos and a
light chargino. Furthermore, although the squarks, sleptons and Z' boson are
typically heavy, the exotic quarks and squarks can also be relatively light. We
finally specify a set of benchmark points which correspond to particle spectra,
production modes and decay patterns peculiar to the cE6SSM, altogether leading
to spectacular new physics signals at the Large Hadron Collider (LHC).
|
[{'version': 'v1', 'created': 'Tue, 14 Apr 2009 18:22:20 GMT'}
{'version': 'v2', 'created': 'Tue, 21 Apr 2009 09:29:56 GMT'}
{'version': 'v3', 'created': 'Tue, 28 Jul 2009 10:10:47 GMT'}]
|
2009-12-10
|
[array(['Athron', 'P.', '', '2 and 4'], dtype=object)
array(['King', 'S. F.', '', '2 and 4'], dtype=object)
array(['Miller', 'D. J.', '', '2 and 4'], dtype=object)
array(['Moretti', 'S.', '', '2 and 4'], dtype=object)
array(['Nevzorov', 'R.', ''], dtype=object)]
|
5,120 |
2201.04559
|
Galina Georgieva
|
Galina Georgieva, Christian Mai, Pascal M. Seiler, Anna Peczek and
Lars Zimmermann
|
Dual-polarization multiplexing amorphous Si:H grating couplers for
silicon photonic transmitters in the photonic BiCMOS backend of line
|
This is an accepted version of a peer-reviewed manuscript, considered
for publication by the Springer's journal Frontiers of Optoelectronics
| null |
10.1007/s12200-022-00005-8
| null |
physics.app-ph physics.optics
|
http://creativecommons.org/licenses/by/4.0/
|
We report on polarization combining 2D grating couplers (2D GCs) on amorphous
Si:H, fabricated in the backend of line of a photonic BiCMOS platform. The 2D
GCs can be used as an interface of a hybrid silicon photonic coherent
transmitter, which can be implemented on bulk Si wafers. The fabricated 2D GCs
operate in the telecom C-band and show an experimental coupling efficiency of
-5 dB with a wafer variation of +/-1.2 dB. Possibilities for efficiency
enhancement and improved performance stability in future design generations are
outlined and extension towards O-band devices is investigated as well.
|
[{'version': 'v1', 'created': 'Tue, 11 Jan 2022 12:50:00 GMT'}]
|
2022-05-11
|
[array(['Georgieva', 'Galina', ''], dtype=object)
array(['Mai', 'Christian', ''], dtype=object)
array(['Seiler', 'Pascal M.', ''], dtype=object)
array(['Peczek', 'Anna', ''], dtype=object)
array(['Zimmermann', 'Lars', ''], dtype=object)]
|
5,121 |
0712.1049
|
Azar Mustafayev
|
Alexander Belyaev (1), Shahida Dar (2), Ilia Gogoladze (2), Azar
Mustafayev (3), Qaisar Shafi (2) ((1) Southampton U., (2) Bartol Research
Inst. and Delaware U., (3) Kansas U.)
|
Interplay of Higgs and Sparticle Masses in the CMSSM with updated SUSY
constraints
|
26 pages, 14 figures; reference and comments added, mistake in fig.14
corrected
| null | null |
BA-07-029
|
hep-ph
| null |
We estimate the bounds on Higgs and sparticle masses and discuss their
correlations in the constrained minimal supersymmetric standard model (CMSSM).
In our analysis we have applied the present constraints from collider and low
energy experiments, as well as the experimental bound on cold dark matter from
WMAP. For a given lightest Higgs boson mass, which is expected to be measured
with good precision at the LHC, we find important correlations between the
Higgs and sparticle masses which allows one to delineate the MSSM model
parameters and particle spectra. We have also demonstrated an important
complementarity between the LHC and direct dark matter detection experiments
emphasizing that by including the experimental input both from collider physics
and from dark matter detection experiments, one would significantly improve the
measurement of the SUSY spectrum and the underlying parameter space.
|
[{'version': 'v1', 'created': 'Thu, 6 Dec 2007 21:12:42 GMT'}
{'version': 'v2', 'created': 'Fri, 4 Jan 2008 20:26:33 GMT'}]
|
2011-11-10
|
[array(['Belyaev', 'Alexander', ''], dtype=object)
array(['Dar', 'Shahida', ''], dtype=object)
array(['Gogoladze', 'Ilia', ''], dtype=object)
array(['Mustafayev', 'Azar', ''], dtype=object)
array(['Shafi', 'Qaisar', ''], dtype=object)]
|
5,122 |
1712.00784
|
Xi-Long Fan
|
Xi-Long Fan and Yan-Bei Chen
|
Stochastic gravitational-wave background from spin loss of black holes
| null |
Phys. Rev. D 98, 044020 (2018)
|
10.1103/PhysRevD.98.044020
|
LIGO-P1700409-v3
|
gr-qc astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Although spinning black holes are shown to be stable in vacuum in general
relativity, there exists exotic mechanisms that can convert the spin energy of
black holes into gravitational waves. Such waves may be very weak in amplitude,
since the spin-down could take a long time, and a direct search may not be
feasible. We propose to search for the stochastic background associated with
the spin-down, and we relate the level of this background to the formation rate
of spinning black holes from the merger of binary black holes, as well as the
energy spectrum of waves emitted by the spin-down process. We argue that
current LIGO-Virgo observations are not inconsistent with the existence of a
spin-down process, as long as it is slow enough. On the other hand, the
background may still exist as long as a moderate fraction of spin energy is
emitted within Hubble time. This stochastic background could be one interesting
target of next generation GW detector network, such as LIGO Voyager, and could
be extracted from total stochastic background.
|
[{'version': 'v1', 'created': 'Sun, 3 Dec 2017 16:03:23 GMT'}
{'version': 'v2', 'created': 'Tue, 5 Dec 2017 05:47:48 GMT'}
{'version': 'v3', 'created': 'Tue, 14 Aug 2018 14:32:57 GMT'}]
|
2018-08-22
|
[array(['Fan', 'Xi-Long', ''], dtype=object)
array(['Chen', 'Yan-Bei', ''], dtype=object)]
|
5,123 |
math/0203201
|
A. M. Gavrilik
|
A.M. Gavrilik and A.U. Klimyk (BITP, Kiev)
|
q-Deformed Orthogonal and Pseudo-Orthogonal Algebras and Their
Representations
|
Latex, 5 pages; an old paper (1991) posted for archival purposes
|
Lett.Math.Phys. 21 (1991) 215-220
|
10.1007/BF00420371
| null |
math.QA gr-qc hep-th math-ph math.MP math.RT
| null |
Deformed orthogonal and pseudo-orthogonal Lie algebras are constructed which
differ from deformations of Lie algebras in terms of Cartan subalgebra and root
vectors and which make it possible to construct representations by operators
acting according to Gel'fand--Tsetlin-type formulas. Unitary representations of
the q-deformed algebras U_q(so_{n,1}) are found.
|
[{'version': 'v1', 'created': 'Tue, 19 Mar 2002 20:23:16 GMT'}]
|
2015-06-26
|
[array(['Gavrilik', 'A. M.', '', 'BITP, Kiev'], dtype=object)
array(['Klimyk', 'A. U.', '', 'BITP, Kiev'], dtype=object)]
|
5,124 |
1907.03033
|
Shusaku Imajo
|
Shusaku Imajo, Yoshimitsu Kohama, Atsushi Miyake, Chao Dong, Masashi
Tokunaga, Jacques Flouquet, Koichi Kindo, and Dai Aoki
|
Thermodynamic Investigation of Metamagnetism in Pulsed High Magnetic
Fields on Heavy Fermion Superconductor UTe$_2$
|
6 pages, 6 figures, accepted for publication in JPSJ
|
J. Phys. Soc. Jpn. 88 (2019) 083705
|
10.7566/JPSJ.88.083705
| null |
cond-mat.str-el cond-mat.supr-con
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigated the thermodynamic property of the heavy fermion
superconductor UTe$_2$ in pulsed high magnetic fields. The superconducting
transition in zero field was observed at $T_{\rm c}$=1.65 K as a sharp heat
capacity jump. Magnetocaloric effect measurements in pulsed-magnetic fields
obviously detected a thermodynamic anomaly accompanied by a first-order
metamagnetic transition at $\mu$$_{0}$$H_{\rm m}$=36.0 T when the fields are
applied nearly along the hard-magnetization $b$-axis. From the results of heat
capacity measurements in magnetic fields, we found a drastic diverging
electronic heat capacity coefficient of the normal state $\gamma$$_{\rm N}$
with approaching $H_{\rm m}$. Comparing with the previous works via the
magnetic Clausius-Clapeyron relation, we unveil the thermodynamic details of
the metamagnetic transition. The enhancement of the effective mass observed as
the development of $\gamma_{\rm N}$ indicates that quantum fluctuation strongly
evolves around $H_{\rm m}$; it assists the superconductivity emerging even in
extremely high fields.
|
[{'version': 'v1', 'created': 'Fri, 5 Jul 2019 22:13:19 GMT'}]
|
2019-07-23
|
[array(['Imajo', 'Shusaku', ''], dtype=object)
array(['Kohama', 'Yoshimitsu', ''], dtype=object)
array(['Miyake', 'Atsushi', ''], dtype=object)
array(['Dong', 'Chao', ''], dtype=object)
array(['Tokunaga', 'Masashi', ''], dtype=object)
array(['Flouquet', 'Jacques', ''], dtype=object)
array(['Kindo', 'Koichi', ''], dtype=object)
array(['Aoki', 'Dai', ''], dtype=object)]
|
5,125 |
1907.00519
|
Sanjay Kumar
|
Sanjay Kumar and Nirmal Tiwari
|
Transformed Naive Ratio and Product Based Estimators for Estimating
Population Mode in Simple Random Sampling
|
25 pages, 11 figures
| null | null | null |
stat.ME
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we propose a transformed na\"ive ratio and product based
estimators using the characterizing scalar in presence of auxiliary information
of the study variable for estimating the population mode following simple
random sampling without replacement. The bias, mean square errors, relative
efficiency, ratios of the exact values of mean square errors to the simulated
mean square errors and confidence interval are studied for the performance of
the proposed transformed na\"ive ratio type estimator with the certain natural
population as well as artificially generated data sets. We have shown that
proposed transformed na\"ive ratio based estimator is more efficient than the
na\"ive estimator and na\"ive ratio estimator of the population mode.
|
[{'version': 'v1', 'created': 'Mon, 1 Jul 2019 02:56:18 GMT'}]
|
2019-07-02
|
[array(['Kumar', 'Sanjay', ''], dtype=object)
array(['Tiwari', 'Nirmal', ''], dtype=object)]
|
5,126 |
2011.02702
|
Dong Zhang
|
Yingda Chen, Dong Zhang and Kai Chang
|
Exciton vortices in two-dimensional hybrid perovskite monolayers
| null | null |
10.1088/0256-307X/37/11/117102
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study theoretically the exciton Bose-Einstein condensation and exciton
vortices in a two-dimensional (2D) perovskite (PEA)2PbI4 monolayer. Combining
the first-principles calculations and the Keldysh model, the exciton binding
energy of (PEA)2PbI4 in a monolayer can approach hundreds meV, which make it
possible to observe the excitonic effect at room temperature. Due to the large
exciton binding energy, and hence the high density of excitons, we find that
the critical temperature of the exciton condensation could approach the liquid
nitrogen regime. In presence of perpendicular electric fields, the
dipole-dipole interaction between excitons is found to drive the condensed
excitons into patterned vortices, as the evolution time of vortex patterns is
comparable to the exciton lifetime.
|
[{'version': 'v1', 'created': 'Thu, 5 Nov 2020 08:49:31 GMT'}]
|
2020-11-06
|
[array(['Chen', 'Yingda', ''], dtype=object)
array(['Zhang', 'Dong', ''], dtype=object)
array(['Chang', 'Kai', ''], dtype=object)]
|
5,127 |
2007.06213
|
Amnon Aharony
|
K. Sarkar, A. Aharony, O. Entin-Wohlman, M. Jonson, and R. I. Shekhter
|
Effects of magnetic fields on the Datta-Das spin field-effect transistor
|
Published version, new title
|
Phys. Rev. B 102, 115436 (2020)
|
10.1103/PhysRevB.102.115436
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A Datta-Das spin field-effect transistor is built of a heterostructure with a
Rashba spin-orbit interaction (SOI) at the interface (or quantum well)
separating two possibly magnetized reservoirs. The particle and spin currents
between the two reservoirs are driven by chemical potentials that are
(possibly) different for each spin direction. These currents are also tuned by
varying the strength of the SOI, which changes the amount of the rotation of
the spins of electrons crossing the heterostructure. Here we investigate the
dependence of these currents on additional Zeeman fields on the heterostructure
and on variations of the reservoir magnetizations. In contrast to the particle
current, the spin currents are not necessarily conserved; an additional spin
polarization is injected into the reservoirs. If a reservoir has a finite
(equilibrium) magnetization, then we surprisingly find that the spin current
into that reservoir can only have spins which are parallel to the reservoir
magnetization, independent of all the other fields. This spin current can be
enhanced by increasing the magnetization of the other reservoir, and can also
be tuned by the SOI and the various magnetic fields. When only one reservoir is
magnetized then the spin current into the other reservoir has arbitrary tunable
size and direction. In particular, this spin current changes as the
magnetization of the other reservoir is rotated. The optimal conditions for
accumulating spin polarization on an unpolarized reservoir are to either apply
a Zeeman field in addition to the SOI, or to polarize the other reservoir.
|
[{'version': 'v1', 'created': 'Mon, 13 Jul 2020 07:13:57 GMT'}
{'version': 'v2', 'created': 'Wed, 30 Sep 2020 09:12:49 GMT'}]
|
2020-10-01
|
[array(['Sarkar', 'K.', ''], dtype=object)
array(['Aharony', 'A.', ''], dtype=object)
array(['Entin-Wohlman', 'O.', ''], dtype=object)
array(['Jonson', 'M.', ''], dtype=object)
array(['Shekhter', 'R. I.', ''], dtype=object)]
|
5,128 |
1510.02829
|
Susan Tolman
|
Susan Tolman
|
Non-Hamiltonian actions with isolated fixed points
| null | null | null | null |
math.DG math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We construct a non-Hamiltonian symplectic circle action on a closed,
connected, six-dimensional symplectic manifold with exactly 32 fixed points.
|
[{'version': 'v1', 'created': 'Fri, 9 Oct 2015 21:37:46 GMT'}]
|
2015-10-13
|
[array(['Tolman', 'Susan', ''], dtype=object)]
|
5,129 |
astro-ph/0607469
|
Carlo Burigana Dr.
|
Carlo Burigana, Laura La Porta, Wolfgang Reich, Patricia Reich,
Joaquin Gonzalez-Nuevo, Marcella Massardi, Gianfranco De Zotti
|
Polarized synchrotron emission
|
Comments: 14 pages, 7 figures, 2 tables. In proc. of CMB and Physics
of the Early Universe, 20-22 April 2006, Ischia, Italy. Invited Talk. PoS, in
press
| null | null | null |
astro-ph
| null |
Galactic synchrotron emission represents the most relevant foreground
contamination in cosmic microwave background (CMB) anisotropy observations at
angular scales $\theta \gsim 1^\circ$ and frequencies $\nu \lsim 70$ GHz. The
accurate understanding of its polarization properties is crucial to extract the
cosmological information contained in the CMB polarization anisotropy. Radio
surveys at $\nu \sim 1$ GHz offer the unique opportunity to study Galactic
synchrotron emission where it represents the dominant component, possibly
except for regions close to the Galactic plane where free-free emission is also
important. We review the observational status of Galactic radio surveys at
scales $\theta \gsim 0.5^\circ$. Leiden surveys, thanks to their frequency
coverage from 0.408 GHz to 1.411 GHz, still remain of fundamental importance
for the comprehension of depolarization phenomena. Recent surveys at 1.42 GHz
(in both total intensity and polarization) with a better sensitivity and sky
sampling now cover both celestial hemispheres and allow to accurately map the
correlation properties of the diffuse synchrotron emission. We present an
analysis of these surveys in terms of angular power spectrum. A comparison of a
simple frequency extrapolation of these results with the recent WMAP results
shows that we are close to map the bulk of the diffuse synchrotron polarization
fluctuations and to understand the corresponding implications for CMB
experiments.
|
[{'version': 'v1', 'created': 'Thu, 20 Jul 2006 09:07:41 GMT'}]
|
2007-05-23
|
[array(['Burigana', 'Carlo', ''], dtype=object)
array(['La Porta', 'Laura', ''], dtype=object)
array(['Reich', 'Wolfgang', ''], dtype=object)
array(['Reich', 'Patricia', ''], dtype=object)
array(['Gonzalez-Nuevo', 'Joaquin', ''], dtype=object)
array(['Massardi', 'Marcella', ''], dtype=object)
array(['De Zotti', 'Gianfranco', ''], dtype=object)]
|
5,130 |
2005.10405
|
Xiaodong Wang
|
Fushing Hsieh and Xiaodong Wang
|
From learning gait signatures of many individuals to reconstructing gait
dynamics of one single individual
| null | null | null | null |
eess.SP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Based on the same databases, we computationally address two seemingly highly
related, in fact drastically distinct, questions via computational data-driven
algorithms: 1) how to precisely achieve the big task of differentiating gait
signatures of many individuals? 2) how to reconstruct an individual's complex
gait dynamics in full? Our brains can "effortlessly" resolve the first
question, but will definitely fail in the second one. Since many fine temporal
scale gait patterns surely escape our eyes. Based on accelerometers' 3D gait
time series databases, we link the answers toward both questions via multiscale
structural dependency within gait dynamics of our musculoskeletal system. Two
types of dependency manifestations are explored. We first develop simple
algorithmic computing called Principle System-State Analysis (PSSA) for the
coarse dependency in implicit forms. PSSA is shown to be able to efficiently
classifying among many subjects. We then develop a multiscale
Local-1st-Global-2nd (L1G2) Coding Algorithm and a landmark computing
algorithm. With both algorithms, we can precisely dissect rhythmic gait cycles,
and then decompose each cycle into a series of cyclic gait phases. With proper
color-coding and stacking, we reconstruct and represent an individual's gait
dynamics via a 3D cylinder to collectively reveal universal deterministic and
stochastic structural patterns on centisecond (10 milliseconds) scale across
all rhythmic cycles. This 3D cylinder can serve as "passtensor" for
authentication purposes related to clinical diagnoses and cybersecurity.
|
[{'version': 'v1', 'created': 'Thu, 21 May 2020 00:50:56 GMT'}]
|
2020-05-22
|
[array(['Hsieh', 'Fushing', ''], dtype=object)
array(['Wang', 'Xiaodong', ''], dtype=object)]
|
5,131 |
math/0603424
|
Arthemy Kiselev
|
Arthemy V. Kiselev
|
Minimal surfaces associated with nonpolynomial contact symmetry flows
|
13 pages, 8 figures
|
Fundam. Prikl. Matem. 12 (2006) n.7 `Hamiltonian & Lagrangian
systems and Lie algebras,' 93-100.
| null |
ISPUmath-3/2006
|
math.DG math.AP
| null |
Two infinite sequences of minimal surfaces in space are constructed using
symmetry analysis.
In particular, explicit formulas are obtained for the self-intersecting
minimal surface that fills the trefoil knot.
|
[{'version': 'v1', 'created': 'Fri, 17 Mar 2006 11:45:31 GMT'}
{'version': 'v2', 'created': 'Thu, 6 Apr 2006 08:03:04 GMT'}
{'version': 'v3', 'created': 'Sat, 8 Jul 2006 14:11:59 GMT'}]
|
2007-10-06
|
[array(['Kiselev', 'Arthemy V.', ''], dtype=object)]
|
5,132 |
2001.04297
|
John Just
|
John Just
|
Granular Learning with Deep Generative Models using Highly Contaminated
Data
| null | null | null | null |
cs.LG stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
An approach to utilize recent advances in deep generative models for anomaly
detection in a granular (continuous) sense on a real-world image dataset with
quality issues is detailed using recent normalizing flow models, with
implications in many other applications/domains/data types. The approach is
completely unsupervised (no annotations available) but qualitatively shown to
provide accurate semantic labeling for images via heatmaps of the scaled
log-likelihood overlaid on the images. When sorted based on the median values
per image, clear trends in quality are observed. Furthermore, downstream
classification is shown to be possible and effective via a weakly supervised
approach using the log-likelihood output from a normalizing flow model as a
training signal for a feature-extracting convolutional neural network. The
pre-linear dense layer outputs on the CNN are shown to disentangle high level
representations and efficiently cluster various quality issues. Thus, an
entirely non-annotated (fully unsupervised) approach is shown possible for
accurate estimation and classification of quality issues..
|
[{'version': 'v1', 'created': 'Mon, 6 Jan 2020 23:22:17 GMT'}]
|
2020-01-14
|
[array(['Just', 'John', ''], dtype=object)]
|
5,133 |
1308.3321
|
Rose Lerner
|
Kari Enqvist, Rose N. Lerner and Stanislav Rusak
|
Reheating dynamics affects non-perturbative decay of spectator fields
|
29 pages; 6 figures; matches published version
|
JCAP11(2013)034
|
10.1088/1475-7516/2013/11/034
|
HIP-2013-11/TH
|
astro-ph.CO hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The behaviour of oscillating scalar spectator fields after inflation depends
on the thermal background produced by inflaton decay. Resonant decay of the
spectator is often blocked by large induced thermal masses. We account for the
finite decay width of the inflaton and the protracted build-up of the thermal
bath to determine the early evolution of a homogeneous spectator field, \sigma,
coupled to the Higgs Boson, \Phi, through the term g^2 \sigma^2 \Phi^2, the
only renormalisable coupling of a new scalar to the Standard Model. We find
that for very large higgs-spectator coupling g > 10^{-3}, the resonance is not
always blocked as was previously suggested. As a consequence, the oscillating
spectator can decay quickly. For other parameter values, we find that although
qualitative features of the thermal blocking still hold, the dynamics are
altered compared to the instant decay case. These findings are important for
curvaton models, where the oscillating field must be relatively long lived in
order to produce the curvature perturbation. They are also relevant for other
spectator fields, which must decay sufficiently early to avoid spoiling the
predictions of baryogenesis and nucleosynthesis.
|
[{'version': 'v1', 'created': 'Thu, 15 Aug 2013 07:01:49 GMT'}
{'version': 'v2', 'created': 'Wed, 13 Nov 2013 16:12:03 GMT'}]
|
2013-11-14
|
[array(['Enqvist', 'Kari', ''], dtype=object)
array(['Lerner', 'Rose N.', ''], dtype=object)
array(['Rusak', 'Stanislav', ''], dtype=object)]
|
5,134 |
0911.3326
|
Jean Colombani
|
Jean Colombani (LPMCN), Jacques Bert (LPMCN)
|
Toward a complete description of nucleation and growth in liquid-liquid
phase separation
| null |
Journal of Non-Equilibrium Thermodynamics 29 (2004) 389-395
|
10.1515/JNETDY.2004.063
| null |
cond-mat.stat-mech
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The phase separation mechanism of a binary liquid mixture off-critically
quenched in its miscibility gap is nucleation and growth, its homogeneous phase
reaching a metastable equilibrium state. The successive stages of growth of the
nucleated droplets are a diffusion-driven free growth, an intermediate regime
and a coarsening by reduction of interface (Ostwald ripening or Brownian
collisions induced coalescence). We have made light attenuation experiments to
investigate the sedimentation in such systems. These results have given us
access experimentally to two values predicted theoretically: the growth
exponent of the intermediate regime and the crossover time between this regime
and interface-reduction coarsening. These data, added to the literature
results, have permitted to get a quite complete view of the growth scenario in
very off-critical phase-separating liquids.
|
[{'version': 'v1', 'created': 'Tue, 17 Nov 2009 15:19:58 GMT'}]
|
2009-11-18
|
[array(['Colombani', 'Jean', '', 'LPMCN'], dtype=object)
array(['Bert', 'Jacques', '', 'LPMCN'], dtype=object)]
|
5,135 |
2108.09603
|
Taimur Hassan
|
Taimur Hassan and Samet Akcay and Mohammed Bennamoun and Salman Khan
and Naoufel Werghi
|
Tensor Pooling Driven Instance Segmentation Framework for Baggage Threat
Recognition
|
Accepted in Neural Computing and Applications. Source code is
available at https://github.com/taimurhassan/tensorpooling
| null | null | null |
cs.CV
|
http://creativecommons.org/licenses/by/4.0/
|
Automated systems designed for screening contraband items from the X-ray
imagery are still facing difficulties with high clutter, concealment, and
extreme occlusion. In this paper, we addressed this challenge using a novel
multi-scale contour instance segmentation framework that effectively identifies
the cluttered contraband data within the baggage X-ray scans. Unlike standard
models that employ region-based or keypoint-based techniques to generate
multiple boxes around objects, we propose to derive proposals according to the
hierarchy of the regions defined by the contours. The proposed framework is
rigorously validated on three public datasets, dubbed GDXray, SIXray, and
OPIXray, where it outperforms the state-of-the-art methods by achieving the
mean average precision score of 0.9779, 0.9614, and 0.8396, respectively.
Furthermore, to the best of our knowledge, this is the first contour instance
segmentation framework that leverages multi-scale information to recognize
cluttered and concealed contraband data from the colored and grayscale security
X-ray imagery.
|
[{'version': 'v1', 'created': 'Sun, 22 Aug 2021 00:04:58 GMT'}
{'version': 'v2', 'created': 'Tue, 21 Sep 2021 07:10:43 GMT'}]
|
2021-09-22
|
[array(['Hassan', 'Taimur', ''], dtype=object)
array(['Akcay', 'Samet', ''], dtype=object)
array(['Bennamoun', 'Mohammed', ''], dtype=object)
array(['Khan', 'Salman', ''], dtype=object)
array(['Werghi', 'Naoufel', ''], dtype=object)]
|
5,136 |
1912.12495
|
Sujan Sengupta
|
Sujan Sengupta, Aritra Chakrabarty and Giovanna Tinetti
|
Optical Transmission Spectra of Hot-Jupiters: Effects of Scattering
|
20 pages (AASTEX6.2) including 14 eps colour figures. Accepted for
publication in The Astrophysical Journal
| null |
10.3847/1538-4357/ab6592
| null |
astro-ph.EP astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present new grids of transmission spectra for hot-Jupiters by solving the
multiple scattering radiative transfer equations with non-zero scattering
albedo instead of using the Beer-Bouguer-Lambert law for the change in the
transmitted stellar intensity. The diffused reflection and transmission due to
scattering increases the transmitted stellar flux resulting into a decrease in
the transmission depth. Thus we demonstrate that scattering plays a double role
in determining the optical transmission spectra -- increasing the total optical
depth of the medium and adding the diffused radiation due to scattering to the
transmitted stellar radiation. The resulting effects yield into an increase in
the transmitted flux and hence reduction in the transmission depth. For a
cloudless planetary atmosphere, Rayleigh scattering albedo alters the
transmission depth up to about 0.6 micron but the change in the transmission
depth due to forward scattering by cloud or haze is significant throughout the
optical and near-infrared regions. However, at wavelength longer than about 1.2
$\mu$m, the scattering albedo becomes negligible and hence the transmission
spectra match with that calculated without solving the radiative transfer
equations. We compare our model spectra with existing theoretical models and
find significant difference at wavelength shorter than one micron. We also
compare our models with observational data for a few hot-Jupiters which may
help constructing better retrieval models in future.
|
[{'version': 'v1', 'created': 'Sat, 28 Dec 2019 18:08:13 GMT'}]
|
2020-02-12
|
[array(['Sengupta', 'Sujan', ''], dtype=object)
array(['Chakrabarty', 'Aritra', ''], dtype=object)
array(['Tinetti', 'Giovanna', ''], dtype=object)]
|
5,137 |
1406.5430
|
Harry Zheng
|
Jingtang Ma, Dongya Deng, Harry Zheng
|
A robust algorithm and convergence analysis for static replications of
nonlinear payoffs
|
15 pages
| null | null | null |
q-fin.CP q-fin.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we propose a new robust algorithm to find the optimal static
replicating portfolios for general nonlinear payoff functions and give the
estimate of the rate of convergence that is absent in the literature. We choose
the static replication by minimizing the error bound between the nonlinear
payoff function and the linear spline approximation and derive the
equidistribution equation for selecting the optimal strike prices. The
numerical tests for variance swaps and swaptions and also for the static
quadratic replication and the model with counterparty risk show that the
proposed algorithm is simple, fast and accurate. The paper has generalized and
improved the results of the static replication and approximation in the
literature.
|
[{'version': 'v1', 'created': 'Fri, 20 Jun 2014 15:33:19 GMT'}]
|
2014-06-23
|
[array(['Ma', 'Jingtang', ''], dtype=object)
array(['Deng', 'Dongya', ''], dtype=object)
array(['Zheng', 'Harry', ''], dtype=object)]
|
5,138 |
1612.06967
|
Ximing Xu
|
Ximing Xu, Nancy Reid and Libai Xu
|
Note on information bias and efficiency of composite likelihood
| null | null | null | null |
math.ST stat.TH
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Does the asymptotic variance of the maximum composite likelihood estimator of
a parameter of interest always decrease when the nuisance parameters are known?
Will a composite likelihood necessarily become more efficient by incorporating
addi- tional independent component likelihoods, or by using component
likelihoods with higher dimension? In this note we show through illustrative
examples that the an- swer to both questions is no, and indeed the opposite
direction might be observed. The role of information bias is highlighted to
understand the occurrence of these paradoxical phenomenon.
|
[{'version': 'v1', 'created': 'Wed, 21 Dec 2016 04:16:28 GMT'}]
|
2016-12-22
|
[array(['Xu', 'Ximing', ''], dtype=object)
array(['Reid', 'Nancy', ''], dtype=object)
array(['Xu', 'Libai', ''], dtype=object)]
|
5,139 |
2306.11152
|
Xiaohao Cai
|
Jiahui Liu, Keqiang Fan, Xiaohao Cai and Mahesan Niranjan
|
Few-shot Learning for Inference in Medical Imaging with Subspace Feature
Representations
| null | null | null | null |
math.NA cs.NA
|
http://creativecommons.org/licenses/by/4.0/
|
Unlike the field of visual scene recognition where tremendous advances have
taken place due to the availability of very large datasets to train deep neural
networks, inference from medical images is often hampered by the fact that only
small amounts of data may be available. When working with very small dataset
problems, of the order of a few hundred items of data, the power of deep
learning may still be exploited by using a model pre-trained on natural images
as a feature extractor and carrying out classic pattern recognition techniques
in this feature space, the so-called few-shot learning problem. In regimes
where the dimension of this feature space is comparable to or even larger than
the number of items of data, dimensionality reduction is a necessity and is
often achieved by principal component analysis, i.e., singular value
decomposition (SVD). In this paper, noting the inappropriateness of using SVD
for this setting, we usher in and explore two alternatives based on
discriminant analysis and non-negative matrix factorization (NMF). Using 14
different datasets spanning $11$ distinct disease types, we demonstrate that
discriminant subspaces at low dimensions achieve significant improvements over
SVD-based subspaces and the original feature space. We also show that NMF at
modest dimensions is a competitive alternative to SVD in this setting.
|
[{'version': 'v1', 'created': 'Mon, 19 Jun 2023 20:18:16 GMT'}]
|
2023-06-21
|
[array(['Liu', 'Jiahui', ''], dtype=object)
array(['Fan', 'Keqiang', ''], dtype=object)
array(['Cai', 'Xiaohao', ''], dtype=object)
array(['Niranjan', 'Mahesan', ''], dtype=object)]
|
5,140 |
0908.3594
|
Vadim Ohanyan
|
Stefano Bellucci and Vadim Ohanyan
|
Lattice distortions in a sawtooth chain with Heisenberg and Ising bonds
|
16 pages, 12 figures
|
Eur.Phys.J.B 75, 531 (2010)
|
10.1140/epjb/e2010-00146-x
| null |
cond-mat.stat-mech cond-mat.str-el
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
An exactly solvable model of the sawtooth chain with Ising and Heisenberg
bonds and with coupling to lattice distortion for Heisenberg bonds is
considered in the magnetic field. Using the direct transfer-matrix formalism an
exact description of the thermodynamic functions is obtained. The ground state
phase diagrams for all regions of parameters values containing phases
corresponding to the magnetization plateaus at $M=0,1/4$ and 1/2 have been
obtained. Exact formulas for bond distortions for various ground states are
presented. A novel mechanism of magnetization plateau stabilization
corresponding to $M=1/4$ state is reported.
|
[{'version': 'v1', 'created': 'Tue, 25 Aug 2009 11:31:17 GMT'}
{'version': 'v2', 'created': 'Thu, 17 Sep 2009 12:04:30 GMT'}
{'version': 'v3', 'created': 'Sat, 19 Sep 2009 11:13:03 GMT'}
{'version': 'v4', 'created': 'Mon, 22 Mar 2010 15:20:58 GMT'}]
|
2010-07-01
|
[array(['Bellucci', 'Stefano', ''], dtype=object)
array(['Ohanyan', 'Vadim', ''], dtype=object)]
|
5,141 |
1511.03518
|
Ya-Hui An
|
Ya-Hui An, Qiang Dong, Chong-Jing Sun, Da-Cheng Nie and Yan Fu
|
Diffusion-like recommendation with enhanced similarity of objects
| null |
Physica A: Statistical Mechanics and its Applications 461 (2016)
708-715
|
10.1016/j.physa.2016.06.027
| null |
cs.IR cs.SI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In last decades, diversity and accuracy have been regarded as two important
measures in evaluating a recommendation model. However, a clear concern is that
a model focusing excessively on one measure will put the other one at risk,
thus it is not easy to greatly improve diversity and accuracy simultaneously.
In this paper, we propose to enhance the Resource-Allocation (RA) similarity in
resource transfer equations of diffusion-like models, by giving a tunable
exponent to the RA similarity, and traversing the value of the exponent to
achieve the optimal recommendation results. In this way, we can increase the
recommendation scores (allocated resource) of many unpopular objects.
Experiments on three benchmark data sets, MovieLens, Netflix, and RateYourMusic
show that the modified models can yield remarkable performance improvement
compared with the original ones.
|
[{'version': 'v1', 'created': 'Wed, 11 Nov 2015 14:43:32 GMT'}
{'version': 'v2', 'created': 'Thu, 11 Oct 2018 06:13:15 GMT'}]
|
2018-10-17
|
[array(['An', 'Ya-Hui', ''], dtype=object)
array(['Dong', 'Qiang', ''], dtype=object)
array(['Sun', 'Chong-Jing', ''], dtype=object)
array(['Nie', 'Da-Cheng', ''], dtype=object)
array(['Fu', 'Yan', ''], dtype=object)]
|
5,142 |
1805.10709
|
Wanlin Li
|
Stephanie Chan, Jeroen Hanselman, Wanlin Li
|
Ranks, $2$-Selmer groups, and Tamagawa numbers of elliptic curves with
$\mathbb{Z}/2\mathbb{Z} \times \mathbb{Z}/8\mathbb{Z}$-torsion
| null |
Open Book Series 2 (2019) 173-189
|
10.2140/obs.2019.2.173
| null |
math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In 2016, Balakrishnan-Ho-Kaplan-Spicer-Stein-Weigandt produced a database of
elliptic curves over $\mathbb{Q}$ ordered by height in which they computed the
rank, the size of the $2$-Selmer group, and other arithmetic invariants. They
observed that after a certain point, the average rank seemed to decrease as the
height increased. Here we consider the family of elliptic curves over
$\mathbb{Q}$ whose rational torsion subgroup is isomorphic to
$\mathbb{Z}/2\mathbb{Z} \times \mathbb{Z}/8\mathbb{Z}$. Conditional on GRH and
BSD, we compute the rank of $92\%$ of the $202461$ curves with parameter height
less than $10^3$. We also compute the size of the $2$-Selmer group and the
Tamagawa product, and prove that their averages tend to infinity for this
family.
|
[{'version': 'v1', 'created': 'Sun, 27 May 2018 23:02:46 GMT'}
{'version': 'v2', 'created': 'Wed, 27 Jun 2018 18:50:25 GMT'}]
|
2019-02-13
|
[array(['Chan', 'Stephanie', ''], dtype=object)
array(['Hanselman', 'Jeroen', ''], dtype=object)
array(['Li', 'Wanlin', ''], dtype=object)]
|
5,143 |
1404.7674
|
Tobias Korn
|
G. Plechinger, P. Nagler, Sch\"uller, T. Korn
|
Time-resolved Kerr rotation spectroscopy of valley dynamics in
single-layer MoS2
| null | null | null | null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Single-layer MoS$_2$ and similar dichalcogenides are direct-gap
semiconductors with a peculiar band structure: the direct gap is situated at
the K$^+$ and K$^-$ points in the Brillouin zone, with a large valence-band
spin splitting. Optical selection rules allow for valley-selective interband
excitation using near-resonant, circularly polarized excitation. Here, we
present time-resolved pump-probe experiments in which we study the carrier and
valley dynamics in a mechanically exfoliated single-layer MoS$_2$ flake at low
temperatures. Under resonant excitation conditions, we find that the valley
lifetime exceeds the photocarrier lifetime, indicating the creation of a
resident valley polarization. For highly nonresonant excitation, the valley
polarization decays within the photocarrier lifetime.
|
[{'version': 'v1', 'created': 'Wed, 30 Apr 2014 10:37:26 GMT'}
{'version': 'v2', 'created': 'Tue, 10 Jun 2014 08:50:05 GMT'}
{'version': 'v3', 'created': 'Wed, 11 Jun 2014 11:28:02 GMT'}]
|
2014-06-12
|
[array(['Plechinger', 'G.', ''], dtype=object)
array(['Nagler', 'P.', ''], dtype=object)
array(['Schüller', '', ''], dtype=object)
array(['Korn', 'T.', ''], dtype=object)]
|
5,144 |
1203.1176
|
Annette Maier
|
Annette Maier
|
A Difference Version of Nori's Theorem
|
29 pages
|
Mathematische Annalen 359(3), 759-784, 2014
|
10.1007/s00208-014-1012-z
| null |
math.RA math.AC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider (Frobenius) difference equations over (F_q(s,t), phi) where phi
fixes t and acts on F_q(s) as the Frobenius endomorphism. We prove that every
semisimple, simply-connected linear algebraic group G defined over F_q can be
realized as a difference Galois group over F_{q^i}(s,t) for some i in N. The
proof uses upper and lower bounds on the Galois group scheme of a Frobenius
difference equation that are developed in this paper. The result can be seen as
a difference analogue of Nori's Theorem which states that G(F_q) occurs as
(finite) Galois group over F_q(s).
|
[{'version': 'v1', 'created': 'Tue, 6 Mar 2012 11:58:52 GMT'}]
|
2015-10-29
|
[array(['Maier', 'Annette', ''], dtype=object)]
|
5,145 |
2303.16607
|
Federico Sau
|
Seonwoo Kim and Federico Sau
|
Spectral gap of the symmetric inclusion process
|
16 pages
| null | null | null |
math.PR math-ph math.MP
|
http://creativecommons.org/licenses/by/4.0/
|
We consider the symmetric inclusion process on a general finite graph. Our
main result establishes universal upper and lower bounds for the spectral gap
of this interacting particle system in terms of the spectral gap of the random
walk on the same graph. In the regime in which the gamma-like reversible
measures of the particle systems are log-concave, our bounds match, yielding a
version for the symmetric inclusion process of the celebrated Aldous' spectral
gap conjecture originally formulated for the interchange process. Finally, by
means of duality techniques, we draw analogous conclusions for an interacting
diffusion-like unbounded conservative spin system known as Brownian energy
process.
|
[{'version': 'v1', 'created': 'Wed, 29 Mar 2023 11:40:36 GMT'}]
|
2023-03-30
|
[array(['Kim', 'Seonwoo', ''], dtype=object)
array(['Sau', 'Federico', ''], dtype=object)]
|
5,146 |
2204.03560
|
Chenfeng Cao
|
Chenfeng Cao, Chao Zhang, Zipeng Wu, Markus Grassl, Bei Zeng
|
Quantum variational learning for quantum error-correcting codes
|
34 pages, 14 figures
|
Quantum 6, 828 (2022)
|
10.22331/q-2022-10-06-828
| null |
quant-ph
|
http://creativecommons.org/licenses/by/4.0/
|
Quantum error correction is believed to be a necessity for large-scale
fault-tolerant quantum computation. In the past two decades, various
constructions of quantum error-correcting codes (QECCs) have been developed,
leading to many good code families. However, the majority of these codes are
not suitable for near-term quantum devices. Here we present VarQEC, a
noise-resilient variational quantum algorithm to search for quantum codes with
a hardware-efficient encoding circuit. The cost functions are inspired by the
most general and fundamental requirements of a QECC, the Knill-Laflamme
conditions. Given the target noise channel (or the target code parameters) and
the hardware connectivity graph, we optimize a shallow variational quantum
circuit to prepare the basis states of an eligible code. In principle, VarQEC
can find quantum codes for any error model, whether additive or non-additive,
degenerate or non-degenerate, pure or impure. We have verified its
effectiveness by (re)discovering some symmetric and asymmetric codes, e.g.,
$((n,2^{n-6},3))_2$ for $n$ from 7 to 14. We also found new $((6,2,3))_2$ and
$((7,2,3))_2$ codes that are not equivalent to any stabilizer code, and
extensive numerical evidence with VarQEC suggests that a $((7,3,3))_2$ code
does not exist. Furthermore, we found many new channel-adaptive codes for error
models involving nearest-neighbor correlated errors. Our work sheds new light
on the understanding of QECC in general, which may also help to enhance
near-term device performance with channel-adaptive error-correcting codes.
|
[{'version': 'v1', 'created': 'Thu, 7 Apr 2022 16:38:27 GMT'}
{'version': 'v2', 'created': 'Tue, 20 Sep 2022 10:57:35 GMT'}
{'version': 'v3', 'created': 'Mon, 3 Oct 2022 17:25:03 GMT'}]
|
2022-10-07
|
[array(['Cao', 'Chenfeng', ''], dtype=object)
array(['Zhang', 'Chao', ''], dtype=object)
array(['Wu', 'Zipeng', ''], dtype=object)
array(['Grassl', 'Markus', ''], dtype=object)
array(['Zeng', 'Bei', ''], dtype=object)]
|
5,147 |
1805.01919
|
Skenderis Kostas
|
Michela Petrini, Henning Samtleben, Stanislav Schmidt and Kostas
Skenderis
|
The 10d Uplift of the GPPZ Solution
|
45 pages, v3: JHEP version, Mathematica file with the IIB solution
and the verification of Einstein equations attached, corrected some typos,
v4: Note Added, typos corrected
|
J. High Energ. Phys. (2018) 2018: 26
|
10.1007/JHEP07(2018)026
| null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present the uplift of the GPPZ solution of the five-dimensional maximal
supergravity to ten dimensions. The five dimensional solution involves two real
scalar fields, with one of them encoding holographically the (norm of the
complex) supersymmetric ${\mathcal N}=1$ mass deformation and the other the
real part of the gaugino condensate. We embed this solution in a consistent
truncation of $D=5$ maximal supergravity which involves two complex scalars
dual to the complex mass deformations and the complex gaugino condensate, and a
$U(1)$ gauge field dual to the $U(1)_R$ current, and uplift it to ten
dimensions. The ten dimensional solution is completely explicit, with all
fields given in terms of elementary functions. The metric and the axion-dilaton
agree with those of a partial uplift of the GPPZ flow by Pilch and Warner. We
analyze the asymptotics and the singularity structure of the ten dimensional
solution. The uplifted solution is singular, but the singularity is milder than
that of the five dimensional solution, and there is conformal frame in which
the metric is only singular at one point of $S^5$. We compare the asymptotics
of the $10d$ solution with that of the Polchinski-Strassler and
Freedman-Minahan solutions, and find agreement with Freedman-Minahan and
disagreement with Polchinski-Strassler. In particular, we infer that while the
Polchinski-Strassler $10d$ fields satisfy the correct boundary conditions, they
do not solve the field equations near the boundary.
|
[{'version': 'v1', 'created': 'Fri, 4 May 2018 19:33:48 GMT'}
{'version': 'v2', 'created': 'Fri, 22 Jun 2018 10:41:58 GMT'}
{'version': 'v3', 'created': 'Fri, 6 Jul 2018 11:46:47 GMT'}
{'version': 'v4', 'created': 'Thu, 7 Feb 2019 13:44:18 GMT'}]
|
2019-02-08
|
[array(['Petrini', 'Michela', ''], dtype=object)
array(['Samtleben', 'Henning', ''], dtype=object)
array(['Schmidt', 'Stanislav', ''], dtype=object)
array(['Skenderis', 'Kostas', ''], dtype=object)]
|
5,148 |
1306.2358
|
Christoph Luhn
|
Christoph Luhn
|
Trimaximal TM1 neutrino mixing in S4 with spontaneous CP violation
|
25 pages, version to be published in NPB
| null |
10.1016/j.nuclphysb.2013.07.003
|
IPPP/13/38, DCPT/13/76
|
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The measurement of the reactor angle by the Daya Bay and RENO experiments in
2012 has ruled out the tri-bimaximal paradigm. Adopting an S4 family symmetry,
we propose direct models of the trimaximal type TM1 in which the tri-bimaximal
Klein symmetry of the neutrino sector is broken to a residual Z2 symmetry. In
such a scenario, the solar mixing angle is decreased compared to its
tri-bimaximal value by about one degree, thus bringing it in excellent
agreement with experimental observation. The atmospheric mixing angle, on the
other hand, depends on the CP violating Dirac phase delta. Imposing CP
conservation in the family symmetry limit, we show how to break the CP symmetry
via flavon VEVs with well-defined complex phases, so that sizable deviations of
the atmospheric angle from maximal mixing, consistent with the latest global
fits, are produced.
|
[{'version': 'v1', 'created': 'Mon, 10 Jun 2013 20:58:33 GMT'}
{'version': 'v2', 'created': 'Thu, 18 Jul 2013 11:58:38 GMT'}]
|
2015-06-16
|
[array(['Luhn', 'Christoph', ''], dtype=object)]
|
5,149 |
2212.07063
|
Abdel\^aali Boudjem\^aa abdou abdel aalim
|
Bakhta Ch\'erifi and Abdelaali Boudjemaa
|
Moving Bose mixtures with dipole-dipole interactions
|
8 pages, 4 figures
|
Eur. Phys. J. D 76, 226 (2022)
|
10.1140/epjd/s10053-022-00554-9
| null |
cond-mat.quant-gas
|
http://creativecommons.org/licenses/by/4.0/
|
We study the properties of moving uniform dipolar Bose-Bose mixtures using
the full Hartree-Fock-Bogoliubov theory. The analytical and numerical
calculations emphasize that the competition between the relative motion of two
fluids and the interspecies dipole-dipole interactions may affect the behavior
of the condensed depletion, the anomalous density, the ground-state energy and
second-order pair correlation. It is found that in the lower branch of the
mixture, these quantities are unimportant and present an unconventional
behavior.
|
[{'version': 'v1', 'created': 'Wed, 14 Dec 2022 07:19:11 GMT'}]
|
2022-12-21
|
[array(['Chérifi', 'Bakhta', ''], dtype=object)
array(['Boudjemaa', 'Abdelaali', ''], dtype=object)]
|
5,150 |
2009.03855
|
Daniel Furelos-Blanco
|
Daniel Furelos-Blanco, Mark Law, Anders Jonsson, Krysia Broda and
Alessandra Russo
|
Induction and Exploitation of Subgoal Automata for Reinforcement
Learning
|
Published in the Journal of Artificial Intelligence Research (JAIR)
|
Journal of Artificial Intelligence Research, 70, 1031-1116 (2021)
|
10.1613/jair.1.12372
| null |
cs.AI cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we present ISA, an approach for learning and exploiting
subgoals in episodic reinforcement learning (RL) tasks. ISA interleaves
reinforcement learning with the induction of a subgoal automaton, an automaton
whose edges are labeled by the task's subgoals expressed as propositional logic
formulas over a set of high-level events. A subgoal automaton also consists of
two special states: a state indicating the successful completion of the task,
and a state indicating that the task has finished without succeeding. A
state-of-the-art inductive logic programming system is used to learn a subgoal
automaton that covers the traces of high-level events observed by the RL agent.
When the currently exploited automaton does not correctly recognize a trace,
the automaton learner induces a new automaton that covers that trace. The
interleaving process guarantees the induction of automata with the minimum
number of states, and applies a symmetry breaking mechanism to shrink the
search space whilst remaining complete. We evaluate ISA in several gridworld
and continuous state space problems using different RL algorithms that leverage
the automaton structures. We provide an in-depth empirical analysis of the
automaton learning performance in terms of the traces, the symmetry breaking
and specific restrictions imposed on the final learnable automaton. For each
class of RL problem, we show that the learned automata can be successfully
exploited to learn policies that reach the goal, achieving an average reward
comparable to the case where automata are not learned but handcrafted and given
beforehand.
|
[{'version': 'v1', 'created': 'Tue, 8 Sep 2020 16:42:55 GMT'}
{'version': 'v2', 'created': 'Tue, 16 Mar 2021 15:25:10 GMT'}]
|
2021-03-18
|
[array(['Furelos-Blanco', 'Daniel', ''], dtype=object)
array(['Law', 'Mark', ''], dtype=object)
array(['Jonsson', 'Anders', ''], dtype=object)
array(['Broda', 'Krysia', ''], dtype=object)
array(['Russo', 'Alessandra', ''], dtype=object)]
|
5,151 |
1608.07558
|
Micha{\l} Spali\'nski
|
Wojciech Florkowski, Radoslaw Ryblewski, Micha{\l} Spali\'nski
|
Gradient expansion for anisotropic hydrodynamics
| null |
Phys. Rev. D 94, 114025 (2016)
|
10.1103/PhysRevD.94.114025
| null |
nucl-th hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We compute the gradient expansion for anisotropic hydrodynamics. The results
are compared with the corresponding expansion of the underlying kinetic-theory
model with the collision term treated in the relaxation time approximation. We
find that a recent formulation of anisotropic hydrodynamics based on an
anisotropic matching principle yields the first three terms of the gradient
expansion in agreement with those obtained for the kinetic theory. This gives
further support for this particular hydrodynamic model as a good approximation
of the kinetic-theory approach. We further find that the gradient expansion of
anisotropic hydrodynamics is an asymptotic series, and the singularities of the
analytic continuation of its Borel transform indicate the presence of
non-hydrodynamic modes.
|
[{'version': 'v1', 'created': 'Fri, 26 Aug 2016 18:47:08 GMT'}]
|
2016-12-28
|
[array(['Florkowski', 'Wojciech', ''], dtype=object)
array(['Ryblewski', 'Radoslaw', ''], dtype=object)
array(['Spaliński', 'Michał', ''], dtype=object)]
|
5,152 |
1110.1206
|
Gary Gibbons
|
G.W. Gibbons
|
Anti-de-Sitter spacetime and its uses
|
40 pp Latex, no figures Written version of lectures given at 2nd
Samos Meeting held at at Pythagoreon, Samos, Greece, 31 August - 4 September
1998; Proceedings of the 2nd Samos Meeting on Cosmology, Geometry and
Relativity, S Cotsakis and G W Gibbons eds, {\it Lecture Notes in Physics}\,
{\bf 537} (2000)}
| null | null | null |
hep-th gr-qc math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This is a pedagogic account of some of the global properties of
Anti-de-Sitter spacetime with a view to their application to the AdS/CFT
correspondence. Particular care is taken over the distinction between
Anti-de-Sitter and it's covering space.
Written version of lectures given at 2nd Samos Meeting held at at
Pythagoreon, Samos, Greece, 31 August - 4 September 1998 and published as
Anti-de-Sitter spacetime and its uses, in Mathematical and Quantum Aspects of
Relativity and Cosmology. Proceedings of the 2nd Samos Meeting on Cosmology,
Geometry and Relativity, S Cotsakis and G W Gibbons eds, {\it Lecture Notes in
Physics}\, {\bf 537} (2000)}
|
[{'version': 'v1', 'created': 'Thu, 6 Oct 2011 10:18:51 GMT'}]
|
2011-10-07
|
[array(['Gibbons', 'G. W.', ''], dtype=object)]
|
5,153 |
1809.01637
|
Francesco Lin
|
Francesco Lin
|
Non-formality in $\mathrm{Pin}(2)$-monopole Floer homology
|
41 pages, 2 figures. Comments are very welcome!
| null | null | null |
math.GT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In previous work, we introduced a natural $\mathcal{A}_{\infty}$-structure on
the $\mathrm{Pin}(2)$-monopole Floer chain complex of a closed, oriented
three-manifold $Y$, and showed that it is non-formal in the simplest case in
which $Y$ is the three-sphere $S^3$. In this paper, we provide explicit
descriptions of several Massey products induced on homology, and discuss how
they can be used to compute the $\mathrm{Pin}(2)$-monopole Floer homology of
connected sums in many concrete examples.
|
[{'version': 'v1', 'created': 'Wed, 5 Sep 2018 17:26:58 GMT'}]
|
2018-09-06
|
[array(['Lin', 'Francesco', ''], dtype=object)]
|
5,154 |
math/9907181
|
Pavel Etingof
|
Pavel Etingof and Alexander Varchenko
|
Traces of intertwiners for quantum groups and difference equations, I
|
38 pages, amstex; some misprints and small errors were corrected in
the new version
| null | null | null |
math.QA
| null |
The main object considered in this paper is the trace function, defined as a
suitably normalized trace of a product of intertwining operators for the
Drinfeld-Jimbo quantum group, multiplied by the exponential of an element of
the Cartan subalgebra. This function depends of two parameters -- the element
of the Cartan subalgebra, and the highest weight of the Verma module in which
the trace is taken. The main results of the paper are that the trace function
satisfies two systems of difference equations with respect to the first
parameter (the quantum Knizhnik-Zamolodchikov-Bernard and Macdonald-Ruijsenaars
equations), and that it is symmetric with respect to the two parameters. In
particular, this implies that for each of the above two systems of equations
there is the dual system with respect to the second parameter, which is also
satisfied by the trace function.
The paper establishes a connection between the I.Frenkel-Reshetikhin theory
of quantum conformal blocks, the work of Felder-Mukhin-Tarasov-Varchenko on the
quantum KZB and Ruijsenaars equations, the work of Etingof-I.Frenkel- Kirillov
Jr.-Styrkas on traces of intetwining operators, and the Macdonald- Cherednik
theory. The methods of the paper are based on the theory of dynamical twists
and R-matrices.
|
[{'version': 'v1', 'created': 'Tue, 27 Jul 1999 23:47:53 GMT'}
{'version': 'v2', 'created': 'Tue, 7 Mar 2000 18:38:13 GMT'}]
|
2007-05-23
|
[array(['Etingof', 'Pavel', ''], dtype=object)
array(['Varchenko', 'Alexander', ''], dtype=object)]
|
5,155 |
1909.04890
|
Guillaume Maillard
|
Guillaume Maillard (LMO), Sylvain Arlot (LM-Orsay), Matthieu Lerasle
(LM-Orsay)
|
Aggregated Hold-Out
| null | null | null | null |
math.ST stat.ME stat.ML stat.TH
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Aggregated hold-out (Agghoo) is a method which averages learning rules
selected by hold-out (that is, cross-validation with a single split). We
provide the first theoretical guarantees on Agghoo, ensuring that it can be
used safely: Agghoo performs at worst like the hold-out when the risk is
convex. The same holds true in classification with the 0-1 risk, with an
additional constant factor. For the hold-out, oracle inequalities are known for
bounded losses, as in binary classification. We show that similar results can
be proved, under appropriate assumptions, for other risk-minimization problems.
In particular, we obtain an oracle inequality for regularized kernel regression
with a Lip-schitz loss, without requiring that the Y variable or the regressors
be bounded. Numerical experiments show that aggregation brings a significant
improvement over the hold-out and that Agghoo is competitive with
cross-validation.
|
[{'version': 'v1', 'created': 'Wed, 11 Sep 2019 07:46:09 GMT'}]
|
2020-01-22
|
[array(['Maillard', 'Guillaume', '', 'LMO'], dtype=object)
array(['Arlot', 'Sylvain', '', 'LM-Orsay'], dtype=object)
array(['Lerasle', 'Matthieu', '', 'LM-Orsay'], dtype=object)]
|
5,156 |
gr-qc/9808034
|
WU Zhong Chao
|
Z.C. Wu
|
Real Tunneling and Black Hole Creation
|
21 pages, 4 figures
|
Int.J.Mod.Phys. D7 (1998) 111-127
|
10.1142/S0218271898000115
|
Beijing preprint 97-103
|
gr-qc
| null |
The concept of constrained gravitational instanton is introduced. It is used
to study black hole creation. We discussed the global aspects of the scenario
and the alternative tunnelings.
|
[{'version': 'v1', 'created': 'Tue, 11 Aug 1998 19:56:27 GMT'}]
|
2009-10-31
|
[array(['Wu', 'Z. C.', ''], dtype=object)]
|
5,157 |
0707.1743
|
Atsushi Shiho
|
Atsushi Shiho
|
Relative log convergent cohomology and relative rigid cohomology II
|
80 pages, minor errors and typos fixed
| null | null | null |
math.NT math.AG
| null |
In this paper, we develop the theory of relative log convergent cohomology of
radius $\lambda$ ($0 < \lambda \leq 1$), which is a generalization of the
notion of relative log convergent cohomology in the previous paper. By
comparing this cohomology with relative log crystalline cohomology, relative
rigid cohomology and its variants and by using some technique of hypercovering,
we prove a version of Berthelot's conjecture on the overconvergence of relative
rigid cohomology for proper smooth families.
|
[{'version': 'v1', 'created': 'Thu, 12 Jul 2007 07:08:19 GMT'}
{'version': 'v2', 'created': 'Wed, 21 May 2008 08:41:56 GMT'}]
|
2008-05-21
|
[array(['Shiho', 'Atsushi', ''], dtype=object)]
|
5,158 |
2306.12153
|
Wentao Liu
|
Wentao Liu, Tong Tian, Lemeng Wang, Weijin Xu, Haoyuan Li, Wenyi Zhao,
Xipeng Pan, Huihua Yang, Feng Gao, Yiming Deng, and Ruisheng Su
|
DIAS: A Comprehensive Benchmark for DSA-sequence Intracranial Artery
Segmentation
| null | null | null | null |
eess.IV cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Automatic segmentation of the intracranial artery (IA) in digital subtraction
angiography (DSA) sequence is an essential step in diagnosing IA-related
diseases and guiding neuro-interventional surgery. However, the lack of
publicly available datasets has impeded research in this area. In this paper,
we release DIAS, an IA segmentation dataset, consisting of 120 DSA sequences
from intracranial interventional therapy. In addition to pixel-wise
annotations, this dataset provides two types of scribble annotations for weakly
supervised IA segmentation research. We present a comprehensive benchmark for
evaluating the performance of this challenging dataset by utilizing fully-,
weakly-, and semi-supervised learning approaches. Specifically, we propose a
method that incorporates a dimensionality reduction module into a 2D/3D model
to achieve vessel segmentation in DSA sequences. For weakly-supervised
learning, we propose a scribble learning-based image segmentation framework,
SSCR, which comprises scribble supervision and consistency regularization.
Furthermore, we introduce a random patch-based self-training framework that
utilizes unlabeled DSA sequences to improve segmentation performance. Our
extensive experiments on the DIAS dataset demonstrate the effectiveness of
these methods as potential baselines for future research and clinical
applications.
|
[{'version': 'v1', 'created': 'Wed, 21 Jun 2023 10:03:56 GMT'}]
|
2023-06-22
|
[array(['Liu', 'Wentao', ''], dtype=object)
array(['Tian', 'Tong', ''], dtype=object)
array(['Wang', 'Lemeng', ''], dtype=object)
array(['Xu', 'Weijin', ''], dtype=object)
array(['Li', 'Haoyuan', ''], dtype=object)
array(['Zhao', 'Wenyi', ''], dtype=object)
array(['Pan', 'Xipeng', ''], dtype=object)
array(['Yang', 'Huihua', ''], dtype=object)
array(['Gao', 'Feng', ''], dtype=object)
array(['Deng', 'Yiming', ''], dtype=object)
array(['Su', 'Ruisheng', ''], dtype=object)]
|
5,159 |
1410.4470
|
Raviteja Vemulapalli
|
Raviteja Vemulapalli, Vinay Praneeth Boda, and Rama Chellappa
|
MKL-RT: Multiple Kernel Learning for Ratio-trace Problems via Convex
Optimization
| null | null | null | null |
cs.CV cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the recent past, automatic selection or combination of kernels (or
features) based on multiple kernel learning (MKL) approaches has been receiving
significant attention from various research communities. Though MKL has been
extensively studied in the context of support vector machines (SVM), it is
relatively less explored for ratio-trace problems. In this paper, we show that
MKL can be formulated as a convex optimization problem for a general class of
ratio-trace problems that encompasses many popular algorithms used in various
computer vision applications. We also provide an optimization procedure that is
guaranteed to converge to the global optimum of the proposed optimization
problem. We experimentally demonstrate that the proposed MKL approach, which we
refer to as MKL-RT, can be successfully used to select features for
discriminative dimensionality reduction and cross-modal retrieval. We also show
that the proposed convex MKL-RT approach performs better than the recently
proposed non-convex MKL-DR approach.
|
[{'version': 'v1', 'created': 'Thu, 16 Oct 2014 15:51:50 GMT'}
{'version': 'v2', 'created': 'Fri, 17 Oct 2014 06:12:37 GMT'}]
|
2014-10-20
|
[array(['Vemulapalli', 'Raviteja', ''], dtype=object)
array(['Boda', 'Vinay Praneeth', ''], dtype=object)
array(['Chellappa', 'Rama', ''], dtype=object)]
|
5,160 |
hep-ph/0412084
|
Anna Stasto
|
A.M. Stasto
|
Nonlinear evolution equations in QCD
|
35 pages, 30 figures; Lectures presented at XLIV Cracow School of
Theoretical Physics, June 2004, Zakopane, Poland
|
Acta Phys.Polon.B35:3069-3102,2004
| null |
BNL-NT-04/37
|
hep-ph
| null |
The following lectures are an introduction to the phenomena of partonic
saturation and nonlinear evolution equations in Quantum Chromodynamics. After a
short introduction to the linear evolution, the problems of unitarity bound and
parton saturation are discussed. The nonlinear Balitsky-Kovchegov evolution
equation in the high energy limit is introduced, and the progress towards the
understanding of the properties of its solution is reviewed. We discuss the
concepts of the saturation scale, geometrical scaling and the lack of the
infrared diffusion. Finally, we give a brief summary of current theoretical
developments which extend beyond the Balitsky-Kovchegov equation.
|
[{'version': 'v1', 'created': 'Mon, 6 Dec 2004 15:44:12 GMT'}]
|
2014-11-18
|
[array(['Stasto', 'A. M.', ''], dtype=object)]
|
5,161 |
1802.06469
|
Ali Naji
|
Tayeb Jamali, Ali Naji
|
Active fluids at circular boundaries: Swim pressure and anomalous
droplet ripening
|
15 pages, 7 figures
|
Soft Matter 14, 4820 (2018)
|
10.1039/C8SM00338F
| null |
cond-mat.soft cond-mat.stat-mech physics.bio-ph physics.chem-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the swim pressure exerted by non-chiral and chiral active
particles on convex or concave circular boundaries. Active particles are
modeled as non-interacting and non-aligning self-propelled Brownian particles.
The convex and concave circular boundaries are used as models representing a
fixed inclusion immersed in an active bath and a cavity (or container)
enclosing the active particles, respectively. We first present a detailed
analysis of the role of convex versus concave boundary curvature and of the
chirality of active particles on their spatial distribution, chirality-induced
currents, and the swim pressure they exert on the bounding surfaces. The
results will then be used to predict the mechanical equilibria of suspended
fluid enclosures (generically referred to as 'droplets') in a bulk with active
particles being present either inside the bulk fluid or within the suspended
droplets. We show that, while droplets containing active particles and
suspended in a normal bulk behave in accordance with standard capillary
paradigms, those containing a normal fluid exhibit anomalous behaviors when
suspended in an active bulk. In the latter case, the excess swim pressure
results in non-monotonic dependence of the inside droplet pressure on the
droplet radius. As a result, we find a regime of anomalous capillarity for a
single droplet, where the inside droplet pressure increases upon increasing the
droplet size. In the case of two interconnected droplets, we show that
mechanical equilibrium can occur also when they have different sizes. We
further identify a regime of anomalous ripening, where two unequal-sized
droplets can reach a final state of equal sizes upon interconnection, in stark
contrast with the standard Ostwald ripening phenomenon, implying shrinkage of
the smaller droplet in favor of the larger one.
|
[{'version': 'v1', 'created': 'Sun, 18 Feb 2018 23:34:13 GMT'}]
|
2020-10-01
|
[array(['Jamali', 'Tayeb', ''], dtype=object)
array(['Naji', 'Ali', ''], dtype=object)]
|
5,162 |
1812.04504
|
Xiaobo Jing
|
Xiaobo Jing, Qi Wang
|
Linear Second Order Energy Stable Schemes of Phase Field Model with
Nonlocal Constraints for Crystal Growth
|
arXiv admin note: substantial text overlap with arXiv:1810.05311
| null | null | null |
math.NA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a set of linear, second order, unconditionally energy stable
schemes for the Allen-Cahn model with a nonlocal constraint for crystal growth
that conserves the mass of each phase. Solvability conditions are established
for the linear systems resulting from the linear schemes. Convergence rates are
verified numerically. Dynamics obtained using the nonlocal Allen-Cahn model are
compared with the one obtained using the classic Allen-Cahn model as well as
the Cahn-Hilliard model, demonstrating slower dynamics than that of the
Allen-Cahn model but faster dynamics than that of the Cahn-Hillard model. Thus,
the nonlocal Allen-Cahn model can be an alternative to the Cahn-Hilliard model
in simulating crystal growth. Two Benchmark examples are presented to
illustrate the prediction made with the nonlocal Allen-Cahn model in comparison
to those made with the Allen-Cahn model and the Cahn- Hillard model.
|
[{'version': 'v1', 'created': 'Mon, 10 Dec 2018 13:31:49 GMT'}]
|
2018-12-12
|
[array(['Jing', 'Xiaobo', ''], dtype=object)
array(['Wang', 'Qi', ''], dtype=object)]
|
5,163 |
hep-ph/9709436
|
Christian Weiss
|
M.V. Polyakov and C. Weiss
|
Nucleon structure functions from the instanton vacuum: Leading and
non-leading twists
|
13 pages, Latex, 1 figure included using epsf. To appear in
Proceedings of the XXXVII Cracow School of Theoretical Physics, Zakopane, May
30 - June 10, 1997. New references added
|
Acta Phys.Polon.B28:2751-2764,1997
| null |
RUB-TPII-9/97
|
hep-ph
| null |
We review the description of nucleon structure functions in the instanton
vacuum. This includes the calculation of the twist-2 parton distributions at a
low normalization point as well as higher-twist matrix elements. The instanton
vacuum with its inherent small parameter, the packing fraction of the instanton
medium, $\bar\rho / R$, provides a consistent picture of the non-perturbative
gluon degrees of freedom at the scale $\bar\rho^{-1} \simeq 600 MeV$. The
twist-2 quark and antiquark distributions are of order unity, while the twist-2
gluon distribution is of order $(\bar\rho / R)^4$. Twist-4 matrix elements
determining power corrections to the Bjorken, Ellis-Jaffe and
Gross-Llewellyn-Smith sum rules are found to be of order $(\bar\rho / R)^0$. We
present numerical estimates for the parametrically large quantities.
|
[{'version': 'v1', 'created': 'Tue, 23 Sep 1997 21:20:08 GMT'}
{'version': 'v2', 'created': 'Sun, 2 Nov 1997 20:30:34 GMT'}]
|
2011-04-15
|
[array(['Polyakov', 'M. V.', ''], dtype=object)
array(['Weiss', 'C.', ''], dtype=object)]
|
5,164 |
2201.06035
|
Ziwei Fan
|
Ziwei Fan, Zhiwei Liu, Alice Wang, Zahra Nazari, Lei Zheng, Hao Peng,
Philip S. Yu
|
Sequential Recommendation via Stochastic Self-Attention
|
updated version for camera-ready
| null | null | null |
cs.IR cs.AI cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Sequential recommendation models the dynamics of a user's previous behaviors
in order to forecast the next item, and has drawn a lot of attention.
Transformer-based approaches, which embed items as vectors and use dot-product
self-attention to measure the relationship between items, demonstrate superior
capabilities among existing sequential methods. However, users' real-world
sequential behaviors are \textit{\textbf{uncertain}} rather than deterministic,
posing a significant challenge to present techniques. We further suggest that
dot-product-based approaches cannot fully capture \textit{\textbf{collaborative
transitivity}}, which can be derived in item-item transitions inside sequences
and is beneficial for cold start items. We further argue that BPR loss has no
constraint on positive and sampled negative items, which misleads the
optimization. We propose a novel \textbf{STO}chastic
\textbf{S}elf-\textbf{A}ttention~(STOSA) to overcome these issues. STOSA, in
particular, embeds each item as a stochastic Gaussian distribution, the
covariance of which encodes the uncertainty. We devise a novel Wasserstein
Self-Attention module to characterize item-item position-wise relationships in
sequences, which effectively incorporates uncertainty into model training.
Wasserstein attentions also enlighten the collaborative transitivity learning
as it satisfies triangle inequality. Moreover, we introduce a novel
regularization term to the ranking loss, which assures the dissimilarity
between positive and the negative items. Extensive experiments on five
real-world benchmark datasets demonstrate the superiority of the proposed model
over state-of-the-art baselines, especially on cold start items. The code is
available in \url{https://github.com/zfan20/STOSA}.
|
[{'version': 'v1', 'created': 'Sun, 16 Jan 2022 12:38:45 GMT'}
{'version': 'v2', 'created': 'Sat, 5 Mar 2022 17:00:57 GMT'}]
|
2022-03-08
|
[array(['Fan', 'Ziwei', ''], dtype=object)
array(['Liu', 'Zhiwei', ''], dtype=object)
array(['Wang', 'Alice', ''], dtype=object)
array(['Nazari', 'Zahra', ''], dtype=object)
array(['Zheng', 'Lei', ''], dtype=object)
array(['Peng', 'Hao', ''], dtype=object)
array(['Yu', 'Philip S.', ''], dtype=object)]
|
5,165 |
math/0309424
|
Sophie Morier-Genoud
|
Sophie Morier-Genoud
|
Relevement geometrique de la base canonique et involution de
Sch\"utzenberger
|
5 pages, in French
| null | null | null |
math.RT math.QA
| null |
Let $G$ be a complex simply connected semisimple Lie group, and let $B_V$ be
the canonical base of a Weyl module $V$ of $G$. We calculate explicitely the
action of the longest element $w_0$ of the Weyl group on $B_V$ in terms of
parametrizations. The method is based on results of Berenstein and Zelevinsky
on the geometric lifting.
|
[{'version': 'v1', 'created': 'Thu, 25 Sep 2003 19:09:04 GMT'}]
|
2007-05-23
|
[array(['Morier-Genoud', 'Sophie', ''], dtype=object)]
|
5,166 |
1302.3589
|
Henry E. Kyburg Jr.
|
Henry E. Kyburg Jr
|
Uncertain Inferences and Uncertain Conclusions
|
Appears in Proceedings of the Twelfth Conference on Uncertainty in
Artificial Intelligence (UAI1996)
| null | null |
UAI-P-1996-PG-365-372
|
cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Uncertainty may be taken to characterize inferences, their conclusions, their
premises or all three. Under some treatments of uncertainty, the inferences
itself is never characterized by uncertainty. We explore both the significance
of uncertainty in the premises and in the conclusion of an argument that
involves uncertainty. We argue that for uncertainty to characterize the
conclusion of an inference is natural, but that there is an interplay between
uncertainty in the premises and uncertainty in the procedure of argument
itself. We show that it is possible in principle to incorporate all uncertainty
in the premises, rendering uncertainty arguments deductively valid. But we then
argue (1) that this does not reflect human argument, (2) that it is
computationally costly, and (3) that the gain in simplicity obtained by
allowing uncertainty inference can sometimes outweigh the loss of flexibility
it entails.
|
[{'version': 'v1', 'created': 'Wed, 13 Feb 2013 14:15:14 GMT'}]
|
2013-02-18
|
[array(['Kyburg', 'Henry E.', 'Jr'], dtype=object)]
|
5,167 |
2306.02273
|
Ryo Masumura
|
Ryo Masumura, Naoki Makishima, Taiga Yamane, Yoshihiko Yamazaki, Saki
Mizuno, Mana Ihori, Mihiro Uchida, Keita Suzuki, Hiroshi Sato, Tomohiro
Tanaka, Akihiko Takashima, Satoshi Suzuki, Takafumi Moriya, Nobukatsu Hojo,
Atsushi Ando
|
End-to-End Joint Target and Non-Target Speakers ASR
|
Accepted at Interspeech 2023
| null | null | null |
cs.CL cs.SD eess.AS
|
http://creativecommons.org/licenses/by/4.0/
|
This paper proposes a novel automatic speech recognition (ASR) system that
can transcribe individual speaker's speech while identifying whether they are
target or non-target speakers from multi-talker overlapped speech.
Target-speaker ASR systems are a promising way to only transcribe a target
speaker's speech by enrolling the target speaker's information. However, in
conversational ASR applications, transcribing both the target speaker's speech
and non-target speakers' ones is often required to understand interactive
information. To naturally consider both target and non-target speakers in a
single ASR model, our idea is to extend autoregressive modeling-based
multi-talker ASR systems to utilize the enrollment speech of the target
speaker. Our proposed ASR is performed by recursively generating both textual
tokens and tokens that represent target or non-target speakers. Our experiments
demonstrate the effectiveness of our proposed method.
|
[{'version': 'v1', 'created': 'Sun, 4 Jun 2023 06:38:15 GMT'}]
|
2023-06-06
|
[array(['Masumura', 'Ryo', ''], dtype=object)
array(['Makishima', 'Naoki', ''], dtype=object)
array(['Yamane', 'Taiga', ''], dtype=object)
array(['Yamazaki', 'Yoshihiko', ''], dtype=object)
array(['Mizuno', 'Saki', ''], dtype=object)
array(['Ihori', 'Mana', ''], dtype=object)
array(['Uchida', 'Mihiro', ''], dtype=object)
array(['Suzuki', 'Keita', ''], dtype=object)
array(['Sato', 'Hiroshi', ''], dtype=object)
array(['Tanaka', 'Tomohiro', ''], dtype=object)
array(['Takashima', 'Akihiko', ''], dtype=object)
array(['Suzuki', 'Satoshi', ''], dtype=object)
array(['Moriya', 'Takafumi', ''], dtype=object)
array(['Hojo', 'Nobukatsu', ''], dtype=object)
array(['Ando', 'Atsushi', ''], dtype=object)]
|
5,168 |
hep-ph/9209286
|
George Siopsis
|
G. Siopsis, D.B. DeLaney, S. Jadach, Ch. Shio, and B.F.L. Ward
|
Radiative corrections in processes at the SSC
|
UTHEP-92-0901, 15 pages (incl. 3 figures), LaTeX (Talk presented at
the XXXII Cracow School of Theoretical Physics, Zakopane, June 1992)
|
Acta Phys.Polon. B23 (1992) 1133-1144
| null | null |
hep-ph
| null |
We discuss radiative corrections for interactions in the SSC environment.
Based on the theory of Yennie, Frautschi and Suura, we develop appropriate
Monte Carlo event generators to compute the background electromagnetic
radiation. Our results indicate that multiple-photon effects must be taken into
account in the study of SSC physics such as Higgs decay.
|
[{'version': 'v1', 'created': 'Mon, 28 Sep 1992 16:57:42 GMT'}]
|
2007-05-23
|
[array(['Siopsis', 'G.', ''], dtype=object)
array(['DeLaney', 'D. B.', ''], dtype=object)
array(['Jadach', 'S.', ''], dtype=object)
array(['Shio', 'Ch.', ''], dtype=object)
array(['Ward', 'B. F. L.', ''], dtype=object)]
|
5,169 |
0908.1990
|
Andrew Drake
|
A.J. Drake, S.G. Djorgovski, J.L. Prieto, A. Mahabal, D. Balam, R.
Williams, M.J. Graham, M. Catelan, E. Beshore and S. Larson
|
Discovery of the Extremely Energetic Supernova 2008fz
|
Minor corrections
| null |
10.1088/2041-8205/718/2/L127
| null |
astro-ph.HE astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report on the discovery and initial observations of the energetic type IIn
supernova (SN), 2008fz. The optical energy emitted by SN 2008fz (based on the
light curve over a 88 day period), is possibly the most ever observed for a
supernova (1.4 x 10^51 erg). The event was more luminous than the type IIn SN
2006gy, but exhibited same smooth, slowly evolving light curve. As is
characteristic of type IIn SN, the early spectra of 2008fz initially exhibited
narrow Balmer lines which were replaced by a broader component at later times.
The spectra also show a blue continuum with no signs of Ca or Na absorption,
suggesting that there is little extinction due to intragalatic dust in the host
or circumstellar material. No host galaxy is identified in prior coadded images
reaching R ~ 22. From the supernova's redshift, z=0.133, we place an upper
limit on the host of M_R=-17. The presence of the SN within such a faint host
follows the majority of recently discovered highly luminous SN. A possible
reason for this occurrence is the very high star formation rate occurring in
low-mass galaxies in combination with the low metallicity environment, which
makes the production of very massive stars possible. We determine the peak
absolute magnitude of the event to be M_V = -22.3 from the initial photometry
and the redshift distance, placing it among the most luminous supernovae
discovered.
|
[{'version': 'v1', 'created': 'Thu, 13 Aug 2009 23:06:51 GMT'}
{'version': 'v2', 'created': 'Sat, 24 Oct 2009 21:35:30 GMT'}]
|
2015-05-13
|
[array(['Drake', 'A. J.', ''], dtype=object)
array(['Djorgovski', 'S. G.', ''], dtype=object)
array(['Prieto', 'J. L.', ''], dtype=object)
array(['Mahabal', 'A.', ''], dtype=object)
array(['Balam', 'D.', ''], dtype=object)
array(['Williams', 'R.', ''], dtype=object)
array(['Graham', 'M. J.', ''], dtype=object)
array(['Catelan', 'M.', ''], dtype=object)
array(['Beshore', 'E.', ''], dtype=object)
array(['Larson', 'S.', ''], dtype=object)]
|
5,170 |
1601.06653
|
Dinh Tuan Huynh
|
Dinh Tuan Huynh
|
Construction of hyperbolic hypersurfaces of low degree in
$\mathbb{p}^n(\mathbb{c})$
|
7 pages, application of the method used in our previous paper
arXiv:1507.03542 to any dimension, new references are added, minor changes,
to appear in International Journal of Mathematics
| null |
10.1142/S0129167X16500592
| null |
math.AG math.CV math.DG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We construct families of hyperbolic hypersurfaces
$X_d\subset\mathbb{P}^{n+1}(\mathbb{C})$ of degree $d\geq
{\textstyle{(\frac{n+3}{2})^2}}$.
|
[{'version': 'v1', 'created': 'Mon, 25 Jan 2016 16:13:48 GMT'}
{'version': 'v2', 'created': 'Mon, 9 May 2016 22:04:05 GMT'}]
|
2016-05-11
|
[array(['Huynh', 'Dinh Tuan', ''], dtype=object)]
|
5,171 |
2105.00671
|
Ertugrul Basar
|
Ertugrul Basar and H. Vincent Poor
|
Present and Future of Reconfigurable Intelligent Surface-Empowered
Communications
|
IEEE Signal Processing Magazine (to appear)
| null |
10.1109/MSP.2021.3106230
| null |
eess.SP cs.IT math.IT
|
http://creativecommons.org/licenses/by/4.0/
|
Signal processing and communication communities have witnessed the rise of
many exciting communication technologies in recent years. Notable examples
include alternative waveforms, massive multiple-input multiple-output (MIMO)
signaling, non-orthogonal multiple access (NOMA), joint communications and
sensing, sparse vector coding, index modulation, and so on. It is inevitable
that 6G wireless networks will require a rethinking of wireless communication
systems and technologies, particularly at the physical layer (PHY), considering
the fact that the cellular industry reached another important milestone with
the development of 5G wireless networks with diverse applications. Within this
perspective, this article aims to shed light on the rising concept of
reconfigurable intelligent surface (RIS)-empowered communications towards 6G
wireless networks. Software-defined RISs can manipulate their impinging signals
in an effective way to boost certain key performance indicators. We discuss the
recent developments in the field and put forward promising candidates for
future research and development. Specifically, we put our emphasis on active,
transmitter-type, transmissive-reflective, and standalone RISs, by discussing
their advantages and disadvantages compared to reflective RIS designs. Finally,
we also envision an ultimate RIS architecture, which is able to adjust its
operation modes dynamically, and introduce the new concept of PHY slicing over
RISs towards 6G wireless networks.
|
[{'version': 'v1', 'created': 'Mon, 3 May 2021 07:59:40 GMT'}
{'version': 'v2', 'created': 'Tue, 17 Aug 2021 16:52:12 GMT'}]
|
2021-11-10
|
[array(['Basar', 'Ertugrul', ''], dtype=object)
array(['Poor', 'H. Vincent', ''], dtype=object)]
|
5,172 |
2206.10357
|
Xuan Li
|
Xuan Li, Paule-J Toussaint, Alan Evans, and Xue Liu
|
Confidence-Guided Unsupervised Domain Adaptation for Cerebellum
Segmentation
| null | null | null | null |
eess.IV cs.CV
|
http://creativecommons.org/licenses/by/4.0/
|
The lack of a comprehensive high-resolution atlas of the cerebellum has
hampered studies of cerebellar involvement in normal brain function and
disease. A good representation of the tightly foliated aspect of the cerebellar
cortex is difficult to achieve because of the highly convoluted surface and the
time it would take for manual delineation. The quality of manual segmentation
is influenced by human expert judgment, and automatic labelling is constrained
by the limited robustness of existing segmentation algorithms. The
20umisotropic BigBrain dataset provides an unprecedented high resolution
framework for semantic segmentation compared to the 1000um(1mm) resolution
afforded by magnetic resonance imaging. To dispense with the manual annotation
requirement, we propose to train a model to adaptively transfer the annotation
from the cerebellum on the Allen Brain Human Brain Atlas to the BigBrain in an
unsupervised manner, taking into account the different staining and spacing
between sections. The distinct visual discrepancy between the Allen Brain and
BigBrain prevents existing approaches to provide meaningful segmentation masks,
and artifacts caused by sectioning and histological slice preparation in the
BigBrain data pose an extra challenge. To address these problems, we propose a
two-stage framework where we first transfer the Allen Brain cerebellum to a
space sharing visual similarity with the BigBrain. We then introduce a
self-training strategy with a confidence map to guide the model learning from
the noisy pseudo labels iteratively. Qualitative results validate the
effectiveness of our approach, and quantitative experiments reveal that our
method can achieve over 2.6% loss reduction compared with other approaches.
|
[{'version': 'v1', 'created': 'Tue, 14 Jun 2022 16:12:46 GMT'}
{'version': 'v2', 'created': 'Sun, 28 May 2023 04:32:35 GMT'}]
|
2023-05-30
|
[array(['Li', 'Xuan', ''], dtype=object)
array(['Toussaint', 'Paule-J', ''], dtype=object)
array(['Evans', 'Alan', ''], dtype=object)
array(['Liu', 'Xue', ''], dtype=object)]
|
5,173 |
1911.07434
|
Bin Li
|
Bin Li, Shuseng Wang, Jun Zhang, Xainbin Cao, Chenglin Zhao
|
Ultra-Fast Accurate AoA Estimation via Automotive Massive-MIMO Radar
| null | null |
10.1109/TVT.2021.3135910
| null |
eess.SP cs.PF
|
http://creativecommons.org/licenses/by/4.0/
|
Massive multiple-input multiple-output (MIMO) radar, enabled by
millimeter-wave virtual MIMO techniques, provides great promises to the
high-resolution automotive sensing and target detection in unmanned
ground/aerial vehicles (UGA/UAV). As a long-established problem, however,
existing subspace methods suffer from either high complexity or low accuracy.
In this work, we propose two efficient methods, to accomplish fast subspace
computation and accurate angle of arrival (AoA) acquisition. By leveraging
randomized low-rank approximation, our fast multiple signal classification
(MUSIC) methods, relying on random sampling and projection techniques,
substantially accelerate the subspace estimation by orders of magnitude.
Moreover, we establish the theoretical bounds of our proposed methods, which
ensure the accuracy of the approximated pseudo-spectrum. As demonstrated, the
pseudo-spectrum acquired by our fast-MUSIC would be highly precise; and the
estimated AoA is almost as accurate as standard MUSIC. In contrast, our new
methods are tremendously faster than standard MUSIC. Thus, our fast-MUSIC
enables the high-resolution real-time environmental sensing with massive MIMO
radars, which has great potential in the emerging unmanned systems.
|
[{'version': 'v1', 'created': 'Mon, 18 Nov 2019 05:27:46 GMT'}
{'version': 'v2', 'created': 'Mon, 20 Jul 2020 08:31:41 GMT'}
{'version': 'v3', 'created': 'Tue, 21 Dec 2021 02:19:26 GMT'}]
|
2021-12-22
|
[array(['Li', 'Bin', ''], dtype=object)
array(['Wang', 'Shuseng', ''], dtype=object)
array(['Zhang', 'Jun', ''], dtype=object)
array(['Cao', 'Xainbin', ''], dtype=object)
array(['Zhao', 'Chenglin', ''], dtype=object)]
|
5,174 |
1111.7063
|
Prakash Mathews
|
M. C. Kumar, Prakash Mathews, V. Ravindran, Satyajit Seth
|
Neutral triple electroweak gauge boson production in the large
extra-dimension model at the LHC
|
13 pages, 9 figures, version to appear in PRD
| null |
10.1103/PhysRevD.85.094507
|
DESY 11-229
|
hep-ph hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the prospects of probing large extra dimension model at the LHC
through neutral triple gauge boson production processes. In theories with extra
dimensions these processes result from the exchange of a tower of massive
graviton modes between the SM particles. We consider \gamma\gamma\gamma, \gamma
\gamma Z, \gamma Z Z and ZZZ production processes, and present our results for
various kinematic distributions at the LHC for \sqrt{S}=14 TeV.
|
[{'version': 'v1', 'created': 'Wed, 30 Nov 2011 06:51:19 GMT'}
{'version': 'v2', 'created': 'Thu, 17 May 2012 12:25:12 GMT'}]
|
2015-06-03
|
[array(['Kumar', 'M. C.', ''], dtype=object)
array(['Mathews', 'Prakash', ''], dtype=object)
array(['Ravindran', 'V.', ''], dtype=object)
array(['Seth', 'Satyajit', ''], dtype=object)]
|
5,175 |
hep-ph/0204010
|
Fritz W. Bopp
|
Fritz W. Bopp and Johannes Ranft
|
Charged Particle Fluctuation in Heavy Ion Collisions
|
Talk given by Bopp at the Cracow Epiphany Conference On Quarks And
Gluons In Extreme Conditions, 3 - 6 January 2002, Cracow, Poland
|
Acta Phys.Polon. B33 (2002) 1505-1520
| null |
SI-02-2
|
hep-ph
| null |
Comparing quantities to analyze charged fluctuations in heavy ion experiments
the dispersion of the charges in a central rapidity box was found to be best
suited. Various energies and different nuclear sizes are considered in an
explicit Dual-Parton-Model calculation using the DPMJET code and a randomized
modification to simulated charge equilibrium. For large enough detection
regions charged particle fluctuations can provide a signal of the basic
dynamics of heavy ion processes.
|
[{'version': 'v1', 'created': 'Mon, 1 Apr 2002 12:53:28 GMT'}]
|
2007-05-23
|
[array(['Bopp', 'Fritz W.', ''], dtype=object)
array(['Ranft', 'Johannes', ''], dtype=object)]
|
5,176 |
2208.07121
|
Zishen Wang
|
Zishen Wang, Chuan Chen, Jinchao Mo, Jun Zhou, Kian Ping Loh, Yuan
Ping Feng
|
Decisive role of electron-phonon coupling for phonon and electron
instabilities in transition metal dichalcogenides
| null | null | null | null |
cond-mat.mtrl-sci
|
http://creativecommons.org/licenses/by/4.0/
|
The origin of the charge density wave (CDW) in transition metal
dichalcognides has been in hot debate and no conclusive agreement has been
reached. Here, we propose an ab-initio framework for an accurate description of
both Fermi surface nesting and electron-phonon coupling (EPC) and
systematically investigate their roles in the formation of CDW. Using monolayer
1H-NbSe$_2$ and 1T-VTe$_2$ as representative examples, we show that it is the
momentum-dependent EPC softens the phonon frequencies, which become imaginary
(phonon instabilities) at CDW vectors (indicating CDW formation). Besides, the
distribution of the CDW gap opening (electron instabilities) can be correctly
predicted only if EPC is included in the mean-field model. These results
emphasize the decisive role of EPC in the CDW formation. Our analytical process
is general and can be applied to other CDW systems.
|
[{'version': 'v1', 'created': 'Mon, 15 Aug 2022 11:24:23 GMT'}]
|
2022-08-16
|
[array(['Wang', 'Zishen', ''], dtype=object)
array(['Chen', 'Chuan', ''], dtype=object)
array(['Mo', 'Jinchao', ''], dtype=object)
array(['Zhou', 'Jun', ''], dtype=object)
array(['Loh', 'Kian Ping', ''], dtype=object)
array(['Feng', 'Yuan Ping', ''], dtype=object)]
|
5,177 |
2010.11490
|
Christophe Cerisara
|
Christophe Cerisara (SYNALP), Pavel Kral, Ladislav Lenc
|
On the Effects of Using word2vec Representations in Neural Networks for
Dialogue Act Recognition
| null |
Computer Speech and Language, Elsevier, 2018, 47, pp.175 - 193
|
10.1016/j.csl.2017.07.009
| null |
cs.CL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Dialogue act recognition is an important component of a large number of
natural language processing pipelines. Many research works have been carried
out in this area, but relatively few investigate deep neural networks and word
embeddings. This is surprising, given that both of these techniques have proven
exceptionally good in most other language-related domains. We propose in this
work a new deep neural network that explores recurrent models to capture word
sequences within sentences, and further study the impact of pretrained word
embeddings. We validate this model on three languages: English, French and
Czech. The performance of the proposed approach is consistent across these
languages and it is comparable to the state-of-the-art results in English. More
importantly, we confirm that deep neural networks indeed outperform a Maximum
Entropy classifier, which was expected. However , and this is more surprising,
we also found that standard word2vec em-beddings do not seem to bring valuable
information for this task and the proposed model, whatever the size of the
training corpus is. We thus further analyse the resulting embeddings and
conclude that a possible explanation may be related to the mismatch between the
type of lexical-semantic information captured by the word2vec embeddings, and
the kind of relations between words that is the most useful for the dialogue
act recognition task.
|
[{'version': 'v1', 'created': 'Thu, 22 Oct 2020 07:21:17 GMT'}]
|
2020-10-23
|
[array(['Cerisara', 'Christophe', '', 'SYNALP'], dtype=object)
array(['Kral', 'Pavel', ''], dtype=object)
array(['Lenc', 'Ladislav', ''], dtype=object)]
|
5,178 |
1309.2523
|
Oleg Pavlovich Ledenyov
|
R. A. Anokhin, V. N. Voyevodin, S. N. Dubnyuk, A. M. Egorov, B. V.
Zaitsev, A. F. Kobets, O. P. Ledenyov, K. V. Pavliy, V. V. Ruzhitsky, G. D.
Tolstolutskaya
|
Experimental measurement methods and data on irradiation of functional
design materials by helium ions in linear accelerator
|
9 pages, 13 figures, 3 tables
http://vant.kipt.kharkov.ua/ARTICLE/VANT_2012_5/article_2012_5_123.pdf
|
Problems of Atomic Science and Technology, no. 5(81), pp. 123-130,
ISSN 1562-6016, 2012
| null | null |
cond-mat.mtrl-sci nucl-ex physics.acc-ph physics.ins-det
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The experimental research on the irradiation of the functional design
materials by the Helium ions in the linear accelerator is conducted. The
experimental measurements techniques and data on the irradiation of the
functional design materials by the Helium ions with the energy up to 4 MeV,
including the detailed scheme of experimental measurements setup, are
presented. The new design of accelerating structure of the IH-type such as
POS-4, using the method of alternate-phase focusing with the step-by-step
change of the synchronous phase along the focusing periods in a linear
accelerator, is developed with the aim to irradiate the functional design
materials by the Helium ions. The new design of the injector of the charged
Helium ions with the energy of 120 KeV at the output of an accelerating tube
and the accelerating structure of the type of POS-4 for the one time charged
Helium ions acceleration in the linear accelerator are researched and
developed. The special chamber for the irradiation of functional design
materials by the Helium ions is also created. In the process of experiment, the
temperature of a sample, the magnitude of current of Helium ions beam and the
irradiation dose of sample are measured precisely. The experimental measurement
setup and techniques are fully tested and optimized in the course of the
research on the electro-physical properties of irradiated samples and the
thermal-desorption of Helium ions in a wide range of temperatures
|
[{'version': 'v1', 'created': 'Tue, 3 Sep 2013 12:18:54 GMT'}]
|
2013-09-11
|
[array(['Anokhin', 'R. A.', ''], dtype=object)
array(['Voyevodin', 'V. N.', ''], dtype=object)
array(['Dubnyuk', 'S. N.', ''], dtype=object)
array(['Egorov', 'A. M.', ''], dtype=object)
array(['Zaitsev', 'B. V.', ''], dtype=object)
array(['Kobets', 'A. F.', ''], dtype=object)
array(['Ledenyov', 'O. P.', ''], dtype=object)
array(['Pavliy', 'K. V.', ''], dtype=object)
array(['Ruzhitsky', 'V. V.', ''], dtype=object)
array(['Tolstolutskaya', 'G. D.', ''], dtype=object)]
|
5,179 |
gr-qc/0208015
|
Raul Vera
|
Raul Vera
|
Symmetry-preserving matchings
|
LaTeX, 19 pages
|
Class.Quant.Grav. 19 (2002) 5249-5264
|
10.1088/0264-9381/19/20/316
| null |
gr-qc
| null |
In the literature, the matchings between spacetimes have been most of the
times implicitly assumed to preserve some of the symmetries of the problem
involved. But no definition for this kind of matching was given until recently.
Loosely speaking, the matching hypersurface is restricted to be tangent to the
orbits of a desired local group of symmetries admitted at both sides of the
matching and thus admitted by the whole matched spacetime. This general
definition is shown to lead to conditions on the properties of the preserved
groups. First, the algebraic type of the preserved group must be kept at both
sides of the matching hypersurface. Secondly, the orthogonal transivity of
two-dimensional conformal (in particular isometry) groups is shown to be
preserved (in a way made precise below) on the matching hypersurface. This
result has in particular direct implications on the studies of axially
symmetric isolated bodies in equilibrium in General Relativity, by making up
the first condition that determines the suitability of convective interiors to
be matched to vacuum exteriors. The definition and most of the results
presented in this paper do not depend on the dimension of the manifolds
involved nor the signature of the metric, and their applicability to other
situations and other higher dimensional theories is manifest.
|
[{'version': 'v1', 'created': 'Tue, 6 Aug 2002 15:14:33 GMT'}]
|
2009-11-07
|
[array(['Vera', 'Raul', ''], dtype=object)]
|
5,180 |
1601.00703
|
Thinh Kieu
|
Emine Celik, Luan Hoang, and Thinh Kieu
|
Doubly nonlinear parabolic equations for a general class of Forchheimer
gas flows in porous media
| null | null | null | null |
math.AP
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
This paper is focused on the generalized Forchheimer flows of compressible
fluids in porous media. The gravity effect and other general nonlinear forms of
the source terms and boundary fluxes are integrated into the model. It covers
isentropic gas flows, ideal gases and slightly compressible fluids. We derive a
doubly nonlinear parabolic equation for the so-called pseudo-pressure, and
study the corresponding initial boundary value problem. The maximum estimates
of the solution are established by using suitable trace theorem and adapting
appropriately the Moser's iteration. The gradient estimates are obtained under
a theoretical condition which, indeed, is relevant to the fluid flows in
applications.
|
[{'version': 'v1', 'created': 'Mon, 4 Jan 2016 23:44:00 GMT'}]
|
2016-01-06
|
[array(['Celik', 'Emine', ''], dtype=object)
array(['Hoang', 'Luan', ''], dtype=object)
array(['Kieu', 'Thinh', ''], dtype=object)]
|
5,181 |
2009.12553
|
Michael Gusakov
|
Elena M. Kantor, Mikhail E. Gusakov, Vasiliy A. Dommes
|
Constraining neutron superfluidity with $r$-mode physics
|
6 pages, 4 figures, accepted for publication in Phys. Rev. Lett
| null |
10.1103/PhysRevLett.125.151101
| null |
astro-ph.HE gr-qc nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We constrain the parameters of neutron superfluidity in the cores of neutron
stars making use of the recently proposed effect of resonance stabilization of
$r$-modes. To this end, we, for the first time, calculate the
finite-temperature $r$-mode spectra for realistic models of rotating superfluid
neutron stars, accounting for both muons and neutron-proton entrainment in
their interiors. We find that the ordinary (normal) $r$-mode exhibits avoided
crossings with superfluid $r$-modes at certain stellar temperatures and spin
frequencies. Near the avoided crossings, the normal $r$-mode dissipates
strongly, which leads to substantial suppression of the $r$-mode instability
there. The extreme sensitivity of the positions of avoided crossings to the
neutron superfluidity model allows us to constrain the latter by confronting
the calculated spectra with observations of rapidly rotating neutron stars in
low-mass X-ray binaries.
|
[{'version': 'v1', 'created': 'Sat, 26 Sep 2020 09:46:22 GMT'}]
|
2020-10-21
|
[array(['Kantor', 'Elena M.', ''], dtype=object)
array(['Gusakov', 'Mikhail E.', ''], dtype=object)
array(['Dommes', 'Vasiliy A.', ''], dtype=object)]
|
5,182 |
1409.6553
|
Mojtaba Mohammadi Najafabadi
|
Sara Khatibi and Mojtaba Mohammadi Najafabadi
|
Exploring the Anomalous Higgs-top Couplings
|
15 pages, 8 figures
|
Phys. Rev. D 90,074014 (2014)
|
10.1103/PhysRevD.90.074014
| null |
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Top quark with its large Yukawa coupling is crucially important to explore
TeV scale physics. Therefore, the study of Higgs-top sector is highly motivated
to look for any deviations from the standard model predictions. The most
general lowest order Lagrangian for the Higgs-top Yukawa coupling has scalar
($\kappa$) and pseudoscalar ($\tilde{\kappa}$) components. Currently, these
couplings are constrained indirectly using the present experimental limits on
the Higgs-$\gamma$-$\gamma$ and Higgs-gluon-gluon couplings. Furthermore,
stronger bounds on $\kappa$ and $\tilde{\kappa}$ are obtained using the limits
on the electric dipole moments (EDM). In this work, we propose an
asymmetry-like observable $O_{\phi}$ in $t\bar{t}H$ production at the LHC to
probe the Higgs-top coupling and to distinguish between the scalar and
pseudoscalar components. We also show that the presence of the pseudoscalar
component in the Higgs-top Yukawa coupling leads to a sizeable value for the
top quark EDM. It is shown that a limit of $10^{-19}$ e.cm, which is achievable
by the future $e^{-}e^{+}$ collider, allows us to exclude a significant region
in the $(\kappa,\tilde{\kappa})$ plane.
|
[{'version': 'v1', 'created': 'Tue, 23 Sep 2014 14:22:07 GMT'}
{'version': 'v2', 'created': 'Tue, 14 Oct 2014 08:13:17 GMT'}]
|
2014-10-15
|
[array(['Khatibi', 'Sara', ''], dtype=object)
array(['Najafabadi', 'Mojtaba Mohammadi', ''], dtype=object)]
|
5,183 |
2303.07026
|
Cihan Acar
|
Cihan Acar, Kuluhan Binici, Alp Tekirda\u{g} and Wu Yan
|
Visual-Policy Learning through Multi-Camera View to Single-Camera View
Knowledge Distillation for Robot Manipulation Tasks
|
Under review
| null | null | null |
cs.RO cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The use of multi-camera views simultaneously has been shown to improve the
generalization capabilities and performance of visual policies. However, the
hardware cost and design constraints in real-world scenarios can potentially
make it challenging to use multiple cameras. In this study, we present a novel
approach to enhance the generalization performance of vision-based
Reinforcement Learning (RL) algorithms for robotic manipulation tasks. Our
proposed method involves utilizing a technique known as knowledge distillation,
in which a pre-trained ``teacher'' policy trained with multiple camera
viewpoints guides a ``student'' policy in learning from a single camera
viewpoint. To enhance the student policy's robustness against camera location
perturbations, it is trained using data augmentation and extreme viewpoint
changes. As a result, the student policy learns robust visual features that
allow it to locate the object of interest accurately and consistently,
regardless of the camera viewpoint. The efficacy and efficiency of the proposed
method were evaluated both in simulation and real-world environments. The
results demonstrate that the single-view visual student policy can successfully
learn to grasp and lift a challenging object, which was not possible with a
single-view policy alone. Furthermore, the student policy demonstrates
zero-shot transfer capability, where it can successfully grasp and lift objects
in real-world scenarios for unseen visual configurations.
|
[{'version': 'v1', 'created': 'Mon, 13 Mar 2023 11:42:38 GMT'}]
|
2023-03-14
|
[array(['Acar', 'Cihan', ''], dtype=object)
array(['Binici', 'Kuluhan', ''], dtype=object)
array(['Tekirdağ', 'Alp', ''], dtype=object)
array(['Yan', 'Wu', ''], dtype=object)]
|
5,184 |
1801.09818
|
Andrei Okounkov
|
Andrei Okounkov
|
On the crossroads of enumerative geometry and geometric representation
theory
|
This is my contribution to the proceedings of ICM 2018
| null | null | null |
math.RT math-ph math.AG math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The subjects in the title are interwoven in many different and very deep
ways. I recently wrote several expository accounts [64-66] that reflect a
certain range of developments, but even in their totality they cannot be taken
as a comprehensive survey. In the format of a 30-page contribution aimed at a
general mathematical audience, I have decided to illustrate some of the basic
ideas in one very interesting example - that of HilbpC2, nq, hoping to spark
the curiosity of colleagues in those numerous fields of study where one should
expect applications.
|
[{'version': 'v1', 'created': 'Tue, 30 Jan 2018 01:36:51 GMT'}]
|
2018-02-02
|
[array(['Okounkov', 'Andrei', ''], dtype=object)]
|
5,185 |
0704.0195
|
Dmitri Nikshych
|
Vladimir Drinfeld, Shlomo Gelaki, Dmitri Nikshych, Victor Ostrik
|
Group-theoretical properties of nilpotent modular categories
|
23 pages, LaTeX, typos corrected
| null | null | null |
math.QA math.RT
| null |
We characterize a natural class of modular categories of prime power
Frobenius-Perron dimension as representation categories of twisted doubles of
finite p-groups. We also show that a nilpotent braided fusion category C admits
an analogue of the Sylow decomposition. If the simple objects of C have
integral Frobenius-Perron dimensions then C is group-theoretical. As a
consequence, we obtain that semisimple quasi-Hopf algebras of prime power
dimension are group-theoretical. Our arguments are based on a reconstruction of
twisted group doubles from Lagrangian subcategories of modular categories (this
is reminiscent to the characterization of doubles of quasi-Lie bialgebras in
terms of Manin pairs).
|
[{'version': 'v1', 'created': 'Mon, 2 Apr 2007 13:55:16 GMT'}
{'version': 'v2', 'created': 'Mon, 2 Apr 2007 20:34:03 GMT'}]
|
2007-05-23
|
[array(['Drinfeld', 'Vladimir', ''], dtype=object)
array(['Gelaki', 'Shlomo', ''], dtype=object)
array(['Nikshych', 'Dmitri', ''], dtype=object)
array(['Ostrik', 'Victor', ''], dtype=object)]
|
5,186 |
nucl-th/0403044
|
Ulrich Heinz
|
Ulrich Heinz and Peter F Kolb
|
Rapidity dependent momentum anisotropy at RHIC
|
5 pages, 4 figures. Talk presented at Quark Matter 2004 (Oakland,
Jan. 11-17, 2004). Proceedings to appear in a special volume of Journal of
Physics G: Nuclear and Particle Physics
|
J.Phys.G30:S1229-S1234,2004
|
10.1088/0954-3899/30/8/096
|
TUM-T39-04-04
|
nucl-th
| null |
In Au+Au collisions at RHIC, elliptic flow was found to rapidly decrease as a
function of rapidity. We argue that the origin of this phenomenon is incomplete
thermalization of the initial fireball outside the midrapidity region and show
that it can be quantitatively related to the analogous effect at midrapidity in
peripheral collisions and in collisions at lower beam energies.
|
[{'version': 'v1', 'created': 'Mon, 15 Mar 2004 18:55:12 GMT'}]
|
2009-10-09
|
[array(['Heinz', 'Ulrich', ''], dtype=object)
array(['Kolb', 'Peter F', ''], dtype=object)]
|
5,187 |
2011.07284
|
Raditya Bayu Rahadian
|
Rusman, Sunarti, Raditya Bayu Rahadian
|
Application of the "Among" Leadership Model to Improve Teacher Work
Discipline
|
6 pages
|
International Journal of Innovative Science and Research
Technology, Volume 5, Issue 10, 2020
|
10.38124/IJISRT20OCT493
| null |
physics.ed-ph
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
This study aims to improve teacher work discipline related to their duties as
classroom teachers. This research is a school action research conducted for
four months starting in October 2018 to January 2019 at SDN 11 Simpang Rimba,
South Bangka, Indonesia in the 2018/2019 academic year. The data collection
instrument used observation sheets and documentation. Data analysis used
quantitative data analysis techniques with descriptive statistics. The results
of this study indicate that the application of the "Among" leadership model can
improve teacher work discipline in the aspects of arriving on time, work hours
fulfillment, and prepare lesson plans.
|
[{'version': 'v1', 'created': 'Sat, 14 Nov 2020 12:18:56 GMT'}]
|
2020-11-17
|
[array(['Rusman', '', ''], dtype=object)
array(['Sunarti', '', ''], dtype=object)
array(['Rahadian', 'Raditya Bayu', ''], dtype=object)]
|
5,188 |
2111.09367
|
George Pappas Dr
|
Konstantinos Kostaros and George Pappas
|
Chaotic photon orbits and shadows of a non-Kerr object described by the
Hartle-Thorne spacetime
|
A little restructuring of the paper. Results unchanged and extended
to 3rd order Hartle-Thorne. 38 pages, 21 figures, some references fixed,
reduced figure sizes, notebooks with calculations available on github
|
Class. Quantum Grav. 39 134001 (2022)
|
10.1088/1361-6382/ac7028
| null |
gr-qc astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The data from the event horizon telescope have provided a novel view of the
vicinity of the horizon of a black hole (BH), by imaging the region around the
light-ring. They have also raised hopes for measuring in the near future,
features of the image (or the shadow) related to higher order effects of
photons traveling in these regions, such as the appearance of higher order
bright rings. While the prospect of measuring these fine features of Kerr BHs
is very interesting in itself, there are some even more intriguing prospects
for observing novel features of possible non-Kerr objects, in the case that the
subjects of our images are not the BH solutions of GR. In the hope of
sufficient resolution being available in the future, we explore in this work
the structure and properties of null geodesics around a Hartle-Thorne spacetime
that includes a deformation from the Kerr spacetime characterised by the
quadrupole deformation $\delta q$. These spacetimes have been found to exhibit
a bifurcation of the equatorial light-ring to two off-equatorial light-rings in
a range of $\delta q$s and spin parameters. In addition to this, there is a
range of parameters where both the equatorial and the off-equatorial
light-rings are present. This results in the formation of a pocket that can
trap photons. We investigate the properties of these trapped orbits and find
that chaotic behaviour emerges. Some of these chaotic orbits are additionally
found to be "sticky" and get trapped close to periodic orbits for long times.
We also explore how these novel features affect the shadow and find that the
off-equatorial light-rings produce distinctive features that deform its
circular shape, while the chaotic behaviour associated to the pocket creates
features with fractal structure. These results are shown to be quite general,
extending to higher order Hartle-Thorne spacetimes.
|
[{'version': 'v1', 'created': 'Wed, 17 Nov 2021 19:59:58 GMT'}
{'version': 'v2', 'created': 'Thu, 25 Nov 2021 17:03:56 GMT'}
{'version': 'v3', 'created': 'Fri, 29 Apr 2022 13:37:44 GMT'}]
|
2022-06-07
|
[array(['Kostaros', 'Konstantinos', ''], dtype=object)
array(['Pappas', 'George', ''], dtype=object)]
|
5,189 |
2009.04899
|
Jingyuan Xia
|
Jingyuan Xia, Shengxi Li, Jun-Jie Huang, Imad Jaimoukha and Deniz
Gunduz
|
Meta-learning based Alternating Minimization Algorithm for Non-convex
Optimization
| null | null | null | null |
cs.LG math.OC stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we propose a novel solution for non-convex problems of
multiple variables, especially for those typically solved by an alternating
minimization (AM) strategy that splits the original optimization problem into a
set of sub-problems corresponding to each variable, and then iteratively
optimize each sub-problem using a fixed updating rule. However, due to the
intrinsic non-convexity of the original optimization problem, the optimization
can usually be trapped into spurious local minimum even when each sub-problem
can be optimally solved at each iteration. Meanwhile, learning-based
approaches, such as deep unfolding algorithms, are highly limited by the lack
of labelled data and restricted explainability. To tackle these issues, we
propose a meta-learning based alternating minimization (MLAM) method, which
aims to minimize a partial of the global losses over iterations instead of
carrying minimization on each sub-problem, and it tends to learn an adaptive
strategy to replace the handcrafted counterpart resulting in advance on
superior performance. Meanwhile, the proposed MLAM still maintains the original
algorithmic principle, which contributes to a better interpretability. We
evaluate the proposed method on two representative problems, namely, bi-linear
inverse problem: matrix completion, and non-linear problem: Gaussian mixture
models. The experimental results validate that our proposed approach
outperforms AM-based methods in standard settings, and is able to achieve
effective optimization in challenging cases while other comparing methods would
typically fail.
|
[{'version': 'v1', 'created': 'Wed, 9 Sep 2020 10:45:00 GMT'}
{'version': 'v2', 'created': 'Thu, 15 Oct 2020 11:55:47 GMT'}
{'version': 'v3', 'created': 'Thu, 24 Jun 2021 16:37:35 GMT'}
{'version': 'v4', 'created': 'Fri, 25 Jun 2021 02:54:45 GMT'}
{'version': 'v5', 'created': 'Mon, 27 Sep 2021 05:18:51 GMT'}
{'version': 'v6', 'created': 'Wed, 23 Feb 2022 01:17:30 GMT'}
{'version': 'v7', 'created': 'Sun, 26 Jun 2022 13:30:39 GMT'}]
|
2022-06-28
|
[array(['Xia', 'Jingyuan', ''], dtype=object)
array(['Li', 'Shengxi', ''], dtype=object)
array(['Huang', 'Jun-Jie', ''], dtype=object)
array(['Jaimoukha', 'Imad', ''], dtype=object)
array(['Gunduz', 'Deniz', ''], dtype=object)]
|
5,190 |
0805.0383
|
Florentin Smarandache
|
Florentin Smarandache
|
Alternatives to Pearson's and Spearman's Correlation Coefficients
|
9 pages, 8 tables, one scatter plot
|
Bulletin of Statistics & Economics, Vol. 3, No. S09, 47-53, Spring
2009
| null | null |
math.GM
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This article presents several alternatives to Pearson's correlation
coefficient and many examples. In the samples where the rank in a discrete
variable counts more than the variable values, the mixtures that we propose of
Pearson's and Spearman's correlation coefficients give better results.
|
[{'version': 'v1', 'created': 'Sat, 3 May 2008 20:43:30 GMT'}]
|
2008-09-18
|
[array(['Smarandache', 'Florentin', ''], dtype=object)]
|
5,191 |
1002.3751
|
Alfons Van Daele
|
L. Delvaux, A. Van Daele
|
Algebraic quantum groups II. Constructions and examples
| null | null | null | null |
math.RA math.QA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let G be a group and let A be the algebra of complex functions on G with
finite support. The product in G gives rise to a coproduct on A making it a
multiplier Hopf algebra. In fact, because there exist integrals, we get an
algebraic quantum group.
Now let H be a finite subgroup of G and consider the subalgebra of functions
in A that are constant on double cosets of H. The coproduct in general will not
leave this algebra invariant but we can modify it so that it will leave the
subalgebra invariant (in the sense that the image is in the multiplier algebra
of the tensor product of this subalgebra with itself). However, the modified
coproduct on the subalgebra will no longer be an algebra map. So, in general we
do not have an algebraic quantum group but a so-called algebraic quantum
hypergroup.
Group-like projections in a *-algebraic quantum group A give rise, in a
natural way, to *-algebraic quantum hypergroups, very much like subgroups do as
above for a *-algebraic quantum group associated to a group. In this paper we
push this result further. On the one hand, we no longer assume the *-structure
while on the other hand, we allow the group-like projection to belong to the
multiplier algebra M(A) of A and not only to A itself. Doing so, we not only
get some well-known earlier examples of algebraic quantum hypergroups but also
some interesting new ones.
|
[{'version': 'v1', 'created': 'Fri, 19 Feb 2010 14:27:38 GMT'}]
|
2010-02-22
|
[array(['Delvaux', 'L.', ''], dtype=object)
array(['Van Daele', 'A.', ''], dtype=object)]
|
5,192 |
1712.06843
|
Saahil Ognawala
|
Saahil Ognawala, Ana Petrovska, Kristian Beckers
|
An Exploratory Survey of Hybrid Testing Techniques Involving Symbolic
Execution and Fuzzing
|
Author's preprint
| null | null | null |
cs.SE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recent efforts in practical symbolic execution have successfully mitigated
the path-explosion problem to some extent with search-based heuristics and
compositional approaches. Similarly, due to an increase in the performance of
cheap multi-core commodity computers, fuzzing as a viable method of random
mutation-based testing has also seen promise. However, the possibility of
combining symbolic execution and fuzzing, thereby providing an opportunity to
mitigate drawbacks in each other, has not been sufficiently explored. Fuzzing
could, for example, expedite path-exploration in symbolic execution, and
symbolic execution could make seed input generation in fuzzing more efficient.
There have only been, in our view, very few hybrid solution proposals with
symbolic execution and fuzzing at their centre. By analyzing 77 relevant and
systematically selected papers, we (1) present an overview of hybrid solution
proposals of symbolic execution and fuzzing, (2) perform a gap analysis in
research of hybrid techniques to improve both, plain symbolic execution and
fuzzing, (3) propose new ideas for hybrid test-case generation techniques.
|
[{'version': 'v1', 'created': 'Tue, 19 Dec 2017 09:50:10 GMT'}]
|
2017-12-20
|
[array(['Ognawala', 'Saahil', ''], dtype=object)
array(['Petrovska', 'Ana', ''], dtype=object)
array(['Beckers', 'Kristian', ''], dtype=object)]
|
5,193 |
1609.00825
|
Aron Walsh
|
Lucy D. Whalley, Jonathan M. Skelton, Jarvist M. Frost, Aron Walsh
|
Phonon anharmonicity, lifetimes and thermal transport in
CH$_3$NH$_3$PbI$_3$ from many-body perturbation theory
| null |
Physical Review B 94, 220301(R) (2016)
|
10.1103/PhysRevB.94.220301
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Lattice vibrations in CH$_3$NH$_3$PbI$_3$ are strongly interacting, with
double well instabilities present at the Brillouin zone boundary. Analysis
within a first-principles lattice dynamics framework reveals anharmonic
potentials with short phonon quasi-particle lifetimes and mean-free paths. The
phonon behaviour is distinct from the inorganic semiconductors GaAs and CdTe
where three-phonon interaction strengths are three orders of magnitude smaller.
The implications for the applications of hybrid halide perovskites arising from
thermal conductivity, band-gap deformation, and charge-carrier scattering
through electron-phonon coupling, are presented.
|
[{'version': 'v1', 'created': 'Sat, 3 Sep 2016 13:03:48 GMT'}
{'version': 'v2', 'created': 'Wed, 12 Oct 2016 15:11:02 GMT'}]
|
2016-12-09
|
[array(['Whalley', 'Lucy D.', ''], dtype=object)
array(['Skelton', 'Jonathan M.', ''], dtype=object)
array(['Frost', 'Jarvist M.', ''], dtype=object)
array(['Walsh', 'Aron', ''], dtype=object)]
|
5,194 |
1909.12795
|
Hongki Lee
|
Hongki Lee (Korea Advanced Institute of Science and Technology, South
Korea), Changhee Park (Samsung Electronics, South Korea), Sukyoung Ryu (Korea
Advanced Institute of Science and Technology, South Korea)
|
Automatically Tracing Imprecision Causes in JavaScript Static Analysis
| null |
The Art, Science, and Engineering of Programming, 2020, Vol. 4,
Issue 2, Article 2
|
10.22152/programming-journal.org/2020/4/2
| null |
cs.PL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Researchers have developed various techniques for static analysis of
JavaScript to improve analysis precision. To develop such techniques, they
first identify causes of the precision losses for unproven properties. While
most of the existing work has diagnosed main causes of imprecision in static
analysis by manual investigation, manually tracing the imprecision causes is
challenging because it requires detailed knowledge of analyzer internals.
Recently, several studies proposed to localize the analysis imprecision causes
automatically, but these localization techniques work for only specific
analysis techniques.
In this paper, we present an automatic technique that can trace analysis
imprecision causes of JavaScript applications starting from user-selected
variables. Given a set of program variables, our technique stops an analysis
when any of the variables gets imprecise analysis values. It then traces the
imprecise analysis values using intermediate analysis results back to program
points where the imprecision first started. Our technique shows the trace
information with a new representation called tracing graphs, whose nodes and
edges together represent traces from imprecise points to precise points. In
order to detect major causes of analysis imprecision automatically, we present
four node/edge patterns in tracing graphs for common imprecision causes. We
formalized the technique of generating tracing graphs and identifying patterns,
and implemented them on SAFE, a state-of-the-art JavaScript static analyzer
with various analysis configurations, such as context-sensitivity,
loop-sensitivity, and heap cloning. Our evaluation demonstrates that the
technique can easily find 96 % of the major causes of the imprecision problems
in 17 applications by only automatic detection in tracing graphs using the
patterns, and selectively adopting various advanced techniques can eliminate
the found causes of imprecision.
|
[{'version': 'v1', 'created': 'Fri, 27 Sep 2019 17:01:52 GMT'}]
|
2019-09-30
|
[array(['Lee', 'Hongki', '',
'Korea Advanced Institute of Science and Technology, South\n Korea'],
dtype=object)
array(['Park', 'Changhee', '', 'Samsung Electronics, South Korea'],
dtype=object)
array(['Ryu', 'Sukyoung', '',
'Korea\n Advanced Institute of Science and Technology, South Korea'],
dtype=object) ]
|
5,195 |
1603.05930
|
Dawei Du
|
Dawei Du and Honggang Qi and Longyin Wen and Qi Tian and Qingming
Huang and Siwei Lyu
|
Geometric Hypergraph Learning for Visual Tracking
| null | null | null | null |
cs.CV
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
Graph based representation is widely used in visual tracking field by finding
correct correspondences between target parts in consecutive frames. However,
most graph based trackers consider pairwise geometric relations between local
parts. They do not make full use of the target's intrinsic structure, thereby
making the representation easily disturbed by errors in pairwise affinities
when large deformation and occlusion occur. In this paper, we propose a
geometric hypergraph learning based tracking method, which fully exploits
high-order geometric relations among multiple correspondences of parts in
consecutive frames. Then visual tracking is formulated as the mode-seeking
problem on the hypergraph in which vertices represent correspondence hypotheses
and hyperedges describe high-order geometric relations. Besides, a
confidence-aware sampling method is developed to select representative vertices
and hyperedges to construct the geometric hypergraph for more robustness and
scalability. The experiments are carried out on two challenging datasets
(VOT2014 and Deform-SOT) to demonstrate that the proposed method performs
favorable against other existing trackers.
|
[{'version': 'v1', 'created': 'Fri, 18 Mar 2016 17:32:30 GMT'}]
|
2018-03-28
|
[array(['Du', 'Dawei', ''], dtype=object)
array(['Qi', 'Honggang', ''], dtype=object)
array(['Wen', 'Longyin', ''], dtype=object)
array(['Tian', 'Qi', ''], dtype=object)
array(['Huang', 'Qingming', ''], dtype=object)
array(['Lyu', 'Siwei', ''], dtype=object)]
|
5,196 |
1112.1099
|
Alexandr Kazda
|
Alexandr Kazda
|
CSP for binary conservative relational structures
|
9 pages, 3 figures
|
Algebra universalis, 75(1):75-84, 2016
|
10.1007/s00012-015-0358-8
| null |
math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove that whenever A is a 3-conservative relational structure with only
binary and unary relations then the algebra of polymorphisms of A either has no
Taylor operation (i.e. CSP(A) is NP-complete), or generates a congruence meet
semidistributive variety (i.e. CSP(A) has bounded width).
|
[{'version': 'v1', 'created': 'Mon, 5 Dec 2011 21:32:40 GMT'}
{'version': 'v2', 'created': 'Sun, 6 Oct 2013 14:15:16 GMT'}]
|
2016-02-11
|
[array(['Kazda', 'Alexandr', ''], dtype=object)]
|
5,197 |
1002.2423
|
Rdv Ijcsis
|
Jatinder Singh, Savita Gupta, Lakhwinder Kaur
|
A MAC Layer Based Defense Architecture for Reduction of Quality (RoQ)
Attacks in Wireless LAN
|
IEEE format, International Journal of Computer Science and
Information Security, IJCSIS January 2010, ISSN 1947 5500,
http://sites.google.com/site/ijcsis/
|
International Journal of Computer Science and Information
Security, IJCSIS, Vol. 7, No. 1, pp. 284-291, January 2010, USA
| null |
Journal of Computer Science, ISSN 1947 5500
|
cs.CR cs.NI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recently an alternative of DDoS attacks called shrew attacks or Reduction of
Quality (RoQ) has been identified which is very much difficult to detect. The
RoQ attacks can use source and destination IP address spoofing, and they do not
have distinct periodicity, and may not filter the attack packets precisely. In
this paper, we propose to design the MAC layer based defense architecture for
RoQ attacks in Wireless LAN which includes the detection and response stages.
The attackers are detected by checking the RTS CTS packets from the MAC layer
and the corresponding attack flows are blocked or rejected. By our simulation
results, we show that our proposed technique achieves reduces the attack
throughput there by increasing the received bandwidth and reducing the packet
loss of legitimate users.
|
[{'version': 'v1', 'created': 'Thu, 11 Feb 2010 20:38:04 GMT'}]
|
2010-02-12
|
[array(['Singh', 'Jatinder', ''], dtype=object)
array(['Gupta', 'Savita', ''], dtype=object)
array(['Kaur', 'Lakhwinder', ''], dtype=object)]
|
5,198 |
math/0412050
|
Andreas Balser
|
Andreas Balser
|
Polygons with prescribed Gauss map in Hadamard spaces and Euclidean
buildings
|
15 pages, 3 figures
| null | null | null |
math.MG
| null |
We show that given a stable weighted configuration on the asymptotic boundary
of a locally compact Hadamard space, there is a polygon with Gauss map
prescribed by the given weighted configuration if the configuration is stable.
Moreover, the same result holds for semistable configurations on arbitrary
Euclidean buildings.
We also examine how rays project to closed convex subsets of Hadamard spaces.
|
[{'version': 'v1', 'created': 'Thu, 2 Dec 2004 13:52:40 GMT'}]
|
2007-05-23
|
[array(['Balser', 'Andreas', ''], dtype=object)]
|
5,199 |
2104.14315
|
Zhenlv Lv
|
Zhenlv Lv, Juan Liu, Liangfa Xu
|
A multi-plane augmented reality head-up display system based on volume
holographic optical elements with large area
|
11 pages, 9 figures
| null | null | null |
cs.HC physics.optics
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The traditional head-up display (HUD) system has the disadvantages of a small
area and a single display plane, here we propose and design an augmented
reality (AR) HUD system with multi-plane, large area, high diffraction
efficiency and a single picture generation unit (PGU) based on holographic
optical elements (HOEs). Since volume HOEs have excellent angle selectivity and
wavelength selectivity, HOEs of different wavelengths can be designed to
display images in different planes. Experimental and simulated results verify
the feasibility of this method. Experimental results show that the diffraction
efficiencies of the red, green and blue HOEs are 75.2%, 73.1% and 67.5%. And
the size of HOEs is 20cm*15cm. Moreover, the three HOEs of red, green and blue
display images at different depths of 150cm, 500cm and 1000cm, respectively. In
addition, the field of view (FOV) and eye-box (EB) of the system are
12{\deg}*10{\deg} and 9.5cm*11.2cm. Furthermore, the light transmittance of the
system has reached 60%. It is believed that this technique can be applied to
the augmented reality navigation display of vehicles and aviation.
|
[{'version': 'v1', 'created': 'Mon, 12 Apr 2021 12:24:25 GMT'}]
|
2021-04-30
|
[array(['Lv', 'Zhenlv', ''], dtype=object)
array(['Liu', 'Juan', ''], dtype=object)
array(['Xu', 'Liangfa', ''], dtype=object)]
|
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.