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44.4k
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
6,300 |
1403.5823
|
Shuichiro Yokoyama
|
Masahiro Kawasaki, Shuichiro Yokoyama
|
Compensation for large tensor modes with iso-curvature perturbations in
CMB anisotropies
|
10 pages, 1 figure, accepted for publication in JCAP
| null |
10.1088/1475-7516/2014/05/046
|
ICRR-Report-674-2013-23, IPMU14-0066
|
astro-ph.CO gr-qc hep-ph hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recently, BICEP2 has reported the large tensor-to-scalar ratio
$r=0.2^{+0.07}_{-0.05}$ from the observation of the cosmic microwave background
(CMB) B-mode at degree-scales. Since tensor modes induce not only CMB B-mode
but also the temperature fluctuations on large scales, to realize the
consistent temperature fluctuations with the Planck result we should consider
suppression of scalar perturbations on corresponding large scales. To realize
such a suppression, we consider anti-correlated iso-curvature perturbations
which could be realized in the simple curvaton model.
|
[{'version': 'v1', 'created': 'Mon, 24 Mar 2014 00:46:32 GMT'}
{'version': 'v2', 'created': 'Wed, 2 Apr 2014 03:16:42 GMT'}
{'version': 'v3', 'created': 'Wed, 23 Apr 2014 23:55:23 GMT'}]
|
2015-06-19
|
[array(['Kawasaki', 'Masahiro', ''], dtype=object)
array(['Yokoyama', 'Shuichiro', ''], dtype=object)]
|
6,301 |
1804.00608
|
Voja Radovanovic
|
Marija Dimitrijevi\'c \'Ciri\'c, Dragoljub Go\v{c}anin, Nikola Konjik
and Voja Radovanovi\'c
|
Noncommutative Electrodynamics from $SO(2,3)_\star$ Model of
Noncommutative Gravity
|
21 pages, no figures
| null |
10.1140/epjc/s10052-018-6015-6
| null |
hep-th gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In our previous work we have constructed a model of noncommutative (NC)
gravity based on $SO(2,3)_\star$ gauge symmetry. In this paper we extend the
model by adding matter fields: fermions and a $U(1)$ gauge field. Using the
enveloping algebra approach and the Seiberg-Witten map we construct actions for
these matter fields and expand the actions up to first order in the
noncommutativity (deformation) parameter. Unlike in the case of pure NC
gravity, first non-vanishing NC corrections are linear in the noncommutativity
parameter. In the flat space-time limit we obtain a non-standard NC
Electrodynamics. Finally, we discuss effects of noncommutativity on
relativistic Landau levels of an electron in a constant background magnetic
field and in addition we calculate the induced NC magnetic dipole moment of the
electron.
|
[{'version': 'v1', 'created': 'Mon, 2 Apr 2018 16:08:20 GMT'}]
|
2018-08-01
|
[array(['Ćirić', 'Marija Dimitrijević', ''], dtype=object)
array(['Gočanin', 'Dragoljub', ''], dtype=object)
array(['Konjik', 'Nikola', ''], dtype=object)
array(['Radovanović', 'Voja', ''], dtype=object)]
|
6,302 |
2204.05679
|
Harold Steinacker
|
Harold C. Steinacker
|
Classical space-time geometry in the IKKT matrix model
|
23 pages. Contribution to the proceedings of the Corfu Summer
Institute 2021 "School and Workshops on Elementary Particle Physics and
Gravity". V2: significantly improved description of higher spin contributions
| null | null | null |
hep-th gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We discuss the reconstruction of generic 3+1-dimensional space-time
geometries from covariant quantum spaces as backgrounds in the IKKT matrix
model. An explicit recipe to realize generic classical geometries is provided.
Even though this typically entails some higher-spin contributions, these do not
significantly modify the physical content of the model in the weak gravity
regime. This justifies the framework for emergent gravity given by the
semi-classical matrix model, supplemented by an induced Einstein-Hilbert action
which arises in the presence of fuzzy extra dimensions.
|
[{'version': 'v1', 'created': 'Tue, 12 Apr 2022 10:17:37 GMT'}
{'version': 'v2', 'created': 'Wed, 7 Sep 2022 03:32:25 GMT'}]
|
2022-09-08
|
[array(['Steinacker', 'Harold C.', ''], dtype=object)]
|
6,303 |
2012.07309
|
Ruihong Huang
|
Ruihong Huang, Jianmin Wang
|
Event Data Quality: A Survey
| null | null | null | null |
cs.DB
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Event data are prevalent in diverse domains such as financial trading,
business workflows and industrial IoT nowadays. An event is often characterized
by several attributes denoting the meaning associated with the corresponding
occurrence time/duration. From traditional operational systems in enterprises
to online systems for Web services, event data is generated from physical world
uninterruptedly. However, due to the variety and veracity features of Big data,
event data generated from heterogeneous and dirty sources could have very
different event representations and data quality issues. In this work, we
summarize several typical works on studying data quality issues of event data,
including: (1) event matching, (2) event error detection, (3) event data
repair, and (4) approximate pattern matching.
|
[{'version': 'v1', 'created': 'Mon, 14 Dec 2020 07:49:04 GMT'}]
|
2020-12-15
|
[array(['Huang', 'Ruihong', ''], dtype=object)
array(['Wang', 'Jianmin', ''], dtype=object)]
|
6,304 |
2201.05786
|
Kan He
|
Kan He, Shusen Liu, Jinchuan Hou
|
Approximate separation of quantum gates and separation experiments of
CNOT based on Particle Swarm Optimization algorithm
|
arXiv admin note: text overlap with arXiv:2110.14965
| null | null | null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Ying conceived of using two or more small-capacity quantum computers to
produce a larger-capacity quantum computing system by quantum parallel
programming ([M. S. Ying, Morgan-Kaufmann, 2016]). In doing so, the main
obstacle is separating the quantum gates in the whole circuit to produce a
tensor product of the local gates. It has been showed that there are few
separable multipartite quantum gates, so the approximate separation problem
involves finding local quantum gates that approximate a given inseparable gate.
We propose and study a problem involving the approximate separation of
multipartite gates based on quantum-gate fidelity. For given multipartite and
local gates, we conclude that the smaller is the maximal distance between the
products of an arbitrary pair of eigenvalues, the greater is their gate
fidelity. This provides a criterion for approximate separation. Lastly, we
discuss the optimal approximate separation of the CNOT gate.
|
[{'version': 'v1', 'created': 'Sat, 15 Jan 2022 08:10:22 GMT'}]
|
2022-01-19
|
[array(['He', 'Kan', ''], dtype=object)
array(['Liu', 'Shusen', ''], dtype=object)
array(['Hou', 'Jinchuan', ''], dtype=object)]
|
6,305 |
0809.2640
|
Akira Onuki
|
Akihiko Minami and Akira Onuki
|
Intermediate states at structural phase transition: Model with a
one-component order parameter coupled to strains
|
16 pages, 14 figures
|
J. Phys. Soc. Jpn 77(2008)094604
|
10.1143/JPSJ.77.094604
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study a Ginzburg-Landau model of structural phase transition in two
dimensions, in which a single order parameter is coupled to the tetragonal and
dilational strains. Such elastic coupling terms in the free energy much affect
the phase transition behavior particularly near the tricriticality. A
characteristic feature is appearance of intermediate states, where the ordered
and disordered regions coexist on mesoscopic scales in nearly steady states in
a temperature window. The window width increases with increasing the strength
of the dilational coupling. It arises from freezing of phase ordering in
inhomogeneous strains. No impurity mechanism is involved. We present a simple
theory of the intermediate states to produce phase diagrams consistent with
simulation results.
|
[{'version': 'v1', 'created': 'Tue, 16 Sep 2008 11:33:08 GMT'}]
|
2009-11-13
|
[array(['Minami', 'Akihiko', ''], dtype=object)
array(['Onuki', 'Akira', ''], dtype=object)]
|
6,306 |
2107.00948
|
Haoyi Xiong
|
Zhiyuan Wang, Haoyi Xiong, Jie Zhang, Sijia Yang, Mehdi Boukhechba,
Laura E. Barnes, Daqing Zhang, Dejing Dou
|
From Personalized Medicine to Population Health: A Survey of mHealth
Sensing Techniques
|
This manuscript has been accepted by IEEE Internet of Things Journal
| null |
10.1109/JIOT.2022.3161046
| null |
cs.LG cs.CY cs.HC
|
http://creativecommons.org/publicdomain/zero/1.0/
|
Mobile Sensing Apps have been widely used as a practical approach to collect
behavioral and health-related information from individuals and provide timely
intervention to promote health and well-beings, such as mental health and
chronic cares. As the objectives of mobile sensing could be either \emph{(a)
personalized medicine for individuals} or \emph{(b) public health for
populations}, in this work we review the design of these mobile sensing apps,
and propose to categorize the design of these apps/systems in two paradigms --
\emph{(i) Personal Sensing} and \emph{(ii) Crowd Sensing} paradigms. While both
sensing paradigms might incorporate with common ubiquitous sensing
technologies, such as wearable sensors, mobility monitoring, mobile data
offloading, and/or cloud-based data analytics to collect and process sensing
data from individuals, we present a novel taxonomy system with two major
components that can specify and classify apps/systems from aspects of the
life-cycle of mHealth Sensing: \emph{(1) Sensing Task Creation \&
Participation}, \emph{(2) Health Surveillance \& Data Collection}, and
\emph{(3) Data Analysis \& Knowledge Discovery}. With respect to different
goals of the two paradigms, this work systematically reviews this field, and
summarizes the design of typical apps/systems in the view of the configurations
and interactions between these two components. In addition to summarization,
the proposed taxonomy system also helps figure out the potential directions of
mobile sensing for health from both personalized medicines and population
health perspectives.
|
[{'version': 'v1', 'created': 'Fri, 2 Jul 2021 10:16:21 GMT'}
{'version': 'v2', 'created': 'Wed, 6 Oct 2021 09:35:45 GMT'}
{'version': 'v3', 'created': 'Mon, 16 May 2022 09:44:10 GMT'}]
|
2022-05-17
|
[array(['Wang', 'Zhiyuan', ''], dtype=object)
array(['Xiong', 'Haoyi', ''], dtype=object)
array(['Zhang', 'Jie', ''], dtype=object)
array(['Yang', 'Sijia', ''], dtype=object)
array(['Boukhechba', 'Mehdi', ''], dtype=object)
array(['Barnes', 'Laura E.', ''], dtype=object)
array(['Zhang', 'Daqing', ''], dtype=object)
array(['Dou', 'Dejing', ''], dtype=object)]
|
6,307 |
1012.4521
|
Aaron Keys
|
Aaron S. Keys, Christopher R. Iacovella and Sharon C. Glotzer
|
Characterizing Structure Through Shape Matching and Applications to Self
Assembly
|
19 pages, 9 figures
|
Annual Review of Condensed Matter Physics, Vol. 2 (2011)
|
10.1146/annurev-conmatphys-062910-140526
| null |
cond-mat.soft cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Structural quantities such as order parameters and correlation functions are
often employed to gain insight into the physical behavior and properties of
condensed matter systems. While standard quantities for characterizing
structure exist, often they are insufficient for treating problems in the
emerging field of nano and microscale self-assembly, where the structures
encountered may be complex and unusual. The computer science field of "shape
matching" offers a robust solution to this problem by defining diverse methods
for quantifying the similarity between arbitrarily complex shapes. Most order
parameters and correlation functions used in condensed matter apply a specific
measure of structural similarity within the context of a broader scheme. By
substituting shape matching quantities for traditional quantities, we retain
the essence of the broader scheme, but extend its applicability to more complex
structures. Here we review some standard shape matching techniques and discuss
how they might be used to create highly flexible structural metrics for diverse
systems such as self-assembled matter. We provide three proof-of-concept
example problems applying shape matching methods to identifying local and
global structures, and tracking structural transitions in complex assembled
systems. The shape matching methods reviewed here are applicable to a wide
range of condensed matter systems, both simulated and experimental, provided
particle positions are known or can be accurately imaged.
|
[{'version': 'v1', 'created': 'Tue, 21 Dec 2010 01:04:19 GMT'}]
|
2017-08-23
|
[array(['Keys', 'Aaron S.', ''], dtype=object)
array(['Iacovella', 'Christopher R.', ''], dtype=object)
array(['Glotzer', 'Sharon C.', ''], dtype=object)]
|
6,308 |
2205.06107
|
Aroon Narayanan
|
Aroon Narayanan
|
Social learning via actions in bandit environments
| null | null | null | null |
econ.TH cs.AI cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
I study a game of strategic exploration with private payoffs and public
actions in a Bayesian bandit setting. In particular, I look at cascade
equilibria, in which agents switch over time from the risky action to the
riskless action only when they become sufficiently pessimistic. I show that
these equilibria exist under some conditions and establish their salient
properties. Individual exploration in these equilibria can be more or less than
the single-agent level depending on whether the agents start out with a common
prior or not, but the most optimistic agent always underexplores. I also show
that allowing the agents to write enforceable ex-ante contracts will lead to
the most ex-ante optimistic agent to buy all payoff streams, providing an
explanation to the buying out of smaller start-ups by more established firms.
|
[{'version': 'v1', 'created': 'Thu, 12 May 2022 14:15:17 GMT'}]
|
2022-05-13
|
[array(['Narayanan', 'Aroon', ''], dtype=object)]
|
6,309 |
1601.02595
|
Michael Kordell II
|
Michael Kordell II and Abhijit Majumder
|
Jets in d(p)-A Collisions: Color Transparency or Energy Conservation
|
15 pages, 22 figures; abstract updated
|
Phys. Rev. C 97, 054904 (2018)
|
10.1103/PhysRevC.97.054904
| null |
nucl-th hep-ph nucl-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The production of jets, and high momentum hadrons from jets, produced in
deuteron ($d$)-$Au$ collisions at the relativistic heavy-ion collider (RHIC)
and proton ($p$)-$Pb$ collisions at the large hadron collider (LHC) are studied
as a function of centrality, a measure of the impact parameter of the
collision. A modified version of the event generator PYTHIA, widely used to
simulate $p$-$p$ collisions, is used in conjunction with a nuclear Monte-Carlo
event generator which simulates the locations of the nucleons within a large
nucleus. We demonstrate how events with a hard jet may be simulated, in such a
way that the parton distribution function of the projectile is frozen during
its interaction with the extended nucleus. Using our approach, we demonstrate
that the puzzling enhancement seen in peripheral events at RHIC and the LHC, as
well as the suppression seen in central events at the LHC are mainly due to
mis-binning of central and semi-central events, containing a jet, as peripheral
events. This occurs due to the suppression of soft particle production away
from the jet, caused by the depletion of energy available in a nucleon of the
deuteron (in $d$-$Au$ at RHIC) or in the proton (in $p$-$Pb$ at LHC), after the
production of a hard jet. We conclude that partonic correlations built out of
simple energy conservation are mostly responsible for such an effect.
|
[{'version': 'v1', 'created': 'Mon, 11 Jan 2016 20:55:04 GMT'}
{'version': 'v2', 'created': 'Thu, 28 Jan 2016 22:09:52 GMT'}]
|
2018-05-16
|
[array(['Kordell', 'Michael', 'II'], dtype=object)
array(['Majumder', 'Abhijit', ''], dtype=object)]
|
6,310 |
2103.15898
|
Loris Nanni
|
Loris Nanni, Gianluca Maguolo, Sheryl Brahnam, Michelangelo Paci
|
Comparison of different convolutional neural network activation
functions and methods for building ensembles
| null | null | null | null |
cs.CV cs.AI
|
http://creativecommons.org/licenses/by/4.0/
|
Recently, much attention has been devoted to finding highly efficient and
powerful activation functions for CNN layers. Because activation functions
inject different nonlinearities between layers that affect performance, varying
them is one method for building robust ensembles of CNNs. The objective of this
study is to examine the performance of CNN ensembles made with different
activation functions, including six new ones presented here: 2D Mexican ReLU,
TanELU, MeLU+GaLU, Symmetric MeLU, Symmetric GaLU, and Flexible MeLU. The
highest performing ensemble was built with CNNs having different activation
layers that randomly replaced the standard ReLU. A comprehensive evaluation of
the proposed approach was conducted across fifteen biomedical data sets
representing various classification tasks. The proposed method was tested on
two basic CNN architectures: Vgg16 and ResNet50. Results demonstrate the
superiority in performance of this approach. The MATLAB source code for this
study will be available at https://github.com/LorisNanni.
|
[{'version': 'v1', 'created': 'Mon, 29 Mar 2021 19:12:41 GMT'}
{'version': 'v2', 'created': 'Fri, 2 Apr 2021 02:09:13 GMT'}]
|
2021-04-05
|
[array(['Nanni', 'Loris', ''], dtype=object)
array(['Maguolo', 'Gianluca', ''], dtype=object)
array(['Brahnam', 'Sheryl', ''], dtype=object)
array(['Paci', 'Michelangelo', ''], dtype=object)]
|
6,311 |
1809.09757
|
Joaquin Goni
|
Diana O. Svaldi, Joaqu\'in Go\~ni, Apoorva Bharthur Sanjay, Enrico
Amico, Shannon L. Risacher, John D. West, Mario Dzemidzic, Andrew Saykin,
Liana Apostolova
|
Towards Subject and Diagnostic Identifiability in the Alzheimer's
Disease Spectrum based on Functional Connectomes
|
8 pages, 3 tables, 3 figures
|
In: Stoyanov D. et al. (eds) Graphs in Biomedical Image Analysis
and Integrating Medical Imaging and Non-Imaging Modalities. GRAIL 2018,
Beyond MIC 2018. Lecture Notes in Computer Science, vol 11044. Springer, Cham
|
10.1007/978-3-030-00689-1_8
| null |
q-bio.NC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Alzheimer's disease (AD) is the only major cause of mortality in the world
without an effective disease modifying treatment. Evidence supporting the so
called disconnection hypothesis suggests that functional connectivity
biomarkers may have clinical potential for early detection of AD. However,
known issues with low test-retest reliability and signal to noise in functional
connectivity may prevent accuracy and subsequent predictive capacity. We
validate the utility of a novel principal component based diagnostic
identifiability framework to increase separation in functional connectivity
across the Alzheimer's spectrum by identifying and reconstructing FC using only
AD sensitive components or connectivity modes. We show that this framework (1)
increases test-retest correspondence and (2) allows for better separation, in
functional connectivity, of diagnostic groups both at the whole brain and
individual resting state network level. Finally, we evaluate a posteriori the
association between connectivity mode weights with longitudinal neurocognitive
outcomes.
|
[{'version': 'v1', 'created': 'Tue, 25 Sep 2018 23:28:32 GMT'}]
|
2018-09-27
|
[array(['Svaldi', 'Diana O.', ''], dtype=object)
array(['Goñi', 'Joaquín', ''], dtype=object)
array(['Sanjay', 'Apoorva Bharthur', ''], dtype=object)
array(['Amico', 'Enrico', ''], dtype=object)
array(['Risacher', 'Shannon L.', ''], dtype=object)
array(['West', 'John D.', ''], dtype=object)
array(['Dzemidzic', 'Mario', ''], dtype=object)
array(['Saykin', 'Andrew', ''], dtype=object)
array(['Apostolova', 'Liana', ''], dtype=object)]
|
6,312 |
1309.7248
|
Paul Tod
|
Paul Tod
|
The equations of CCC
|
Corrected and revised version of a talk given at the conference `The
Mathematics of CCC: Mathematical Physics with Positive Lambda' organised by
the Clay Mathematics Institute at the Mathematical Institute, University of
Oxford from September 11-13, 2013; to appear in GRG
| null | null | null |
gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
I review the equations of Conformal Cyclic Cosmology given by Penrose. I
suggest a slight modification to Penrose's prescription and show how this works
out for FRW cosmologies and for Class A Bianchi cosmologies.
|
[{'version': 'v1', 'created': 'Fri, 27 Sep 2013 14:22:20 GMT'}
{'version': 'v2', 'created': 'Mon, 2 Feb 2015 09:54:59 GMT'}]
|
2015-02-03
|
[array(['Tod', 'Paul', ''], dtype=object)]
|
6,313 |
hep-ph/9904312
| null |
Jihn E. Kim
|
Neutrino Magnetic Moments and Atmospheric Neutrinos
|
Talk presented at WIN99. 6 pages
| null | null | null |
hep-ph
| null |
I review the history on neutrino magnetic moments and apply the neurino
magnetic moment idea to constrain its bound from Super-Kamiokande neutrino
oscillation data.
|
[{'version': 'v1', 'created': 'Tue, 13 Apr 1999 08:35:09 GMT'}
{'version': 'v2', 'created': 'Tue, 1 Jun 1999 03:52:12 GMT'}]
|
2007-05-23
|
[array(['Kim', 'Jihn E.', ''], dtype=object)]
|
6,314 |
2002.02391
|
David Chester PhD
|
David Chester, Michael Rios, and Alessio Marrani
|
Beyond the standard model with six-dimensional spinors
|
28 pages with references, 1 figure; v3: Abstract changed, various
updates based on feedback from referees, addition of Lagrangian for 3
generations
|
Particles 2023, 6(1), 144-172
|
10.3390/particles6010008
| null |
physics.gen-ph hep-ph hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
6D spinors with $Spin(3,3)$ symmetry are utilized to efficiently encode three
generations of matter. $E_{8(-24)}$ is shown to contain physically relevant
subgroups with representations for GUT groups, spacetime symmetries, three
generations of the standard model fermions, and Higgs bosons. Pati-Salam,
$SU(5)$, and $Spin(10)$ grand unified theories are found when a single
generation is isolated. For spacetime symmetries, $Spin(4,2)$ may be used for
conformal symmetry, $AdS_5\rightarrow dS_4$, or simply broken to $Spin(3,1)$ of
Minkowski space. Another class of representations finds $Spin(2,2)$ and can
give $AdS_3$ with various GUTs. An action for three generations of fermions in
the Majorana-Weyl spinor ${\bf 128}$ of $Spin(4,12)$ is found with $Spin(3)$
flavor symmetry inside $E_{8(-24)}$. The ${\bf 128}$ of $Spin(4,12)$ can be
regarded as the tangent space to a particular pseudo-Riemannian form of the
octo-octonionic Rosenfeld projective plane $E_{8(-24)}/Spin(4,12)=
(\mathbb{O}_s\times\mathbb{O})\mathbb{P}^2$.
|
[{'version': 'v1', 'created': 'Mon, 3 Feb 2020 19:01:17 GMT'}
{'version': 'v2', 'created': 'Thu, 13 Feb 2020 11:46:10 GMT'}
{'version': 'v3', 'created': 'Wed, 15 Feb 2023 01:38:19 GMT'}]
|
2023-02-16
|
[array(['Chester', 'David', ''], dtype=object)
array(['Rios', 'Michael', ''], dtype=object)
array(['Marrani', 'Alessio', ''], dtype=object)]
|
6,315 |
cond-mat/0201421
|
Stefano Mossa
|
Stefano Mossa, Marc Barthelemy, H. Eugene Stanley, and Luis A. Nunes
Amaral
|
Truncation of power law behavior in "scale-free" network models due to
information filtering
|
LaTeX2e and RevTeX4, 4 pages, 4 figures. Accepted for publication in
Physical Review Letters
|
Phys. Rev. Lett 88, 138701 (2002)
|
10.1103/PhysRevLett.88.138701
| null |
cond-mat.stat-mech cond-mat.dis-nn
| null |
We formulate a general model for the growth of scale-free networks under
filtering information conditions--that is, when the nodes can process
information about only a subset of the existing nodes in the network. We find
that the distribution of the number of incoming links to a node follows a
universal scaling form, i.e., that it decays as a power law with an exponential
truncation controlled not only by the system size but also by a feature not
previously considered, the subset of the network ``accessible'' to the node. We
test our model with empirical data for the World Wide Web and find agreement.
|
[{'version': 'v1', 'created': 'Wed, 23 Jan 2002 19:14:51 GMT'}]
|
2009-11-07
|
[array(['Mossa', 'Stefano', ''], dtype=object)
array(['Barthelemy', 'Marc', ''], dtype=object)
array(['Stanley', 'H. Eugene', ''], dtype=object)
array(['Amaral', 'Luis A. Nunes', ''], dtype=object)]
|
6,316 |
2004.12263
|
Ting-Hui Yang
|
Fanfan Li, Zhenlai Han and Ting-Hui Yang
|
Global Dynamics and Existence of Traveling Wave Solutions for A
Three-Species Models
| null | null | null | null |
math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this work, we investigate the system of three species ecological model
involving one predator-prey subsystem coupling with a generalist predator with
negative effect on the prey. Without diffusive terms, all global dynamics of
its corresponding reaction equations are proved analytically for all classified
parameters. With diffusive terms, the transitions of different spatial
homogeneous solutions, the traveling wave solutions, are showed by higher
dimensional shooting method, the Wazewski method. Some interesting numerical
simulations are performed, and biological implications are given.
|
[{'version': 'v1', 'created': 'Sun, 26 Apr 2020 00:57:26 GMT'}]
|
2020-04-28
|
[array(['Li', 'Fanfan', ''], dtype=object)
array(['Han', 'Zhenlai', ''], dtype=object)
array(['Yang', 'Ting-Hui', ''], dtype=object)]
|
6,317 |
1712.05563
|
Niko Tratnik Mr.
|
Niko Tratnik, Petra \v{Z}igert Pleter\v{s}ek
|
The edge-Hosoya polynomial of benzenoid chains
| null |
J. Math. Chem. 57 (2019) 180-189
| null | null |
math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Hosoya polynomial is a well known vertex-distance based polynomial,
closely correlated to the Wiener index and the hyper-Wiener index, which are
widely used molecular-structure descriptors. In the present paper we consider
the edge version of the Hosoya polynomial. For a connected graph $G$ let
$d_e(G,k)$ be the number of (unordered) edge pairs at distance $k$. Then the
edge-Hosoya polynomial of $G$ is $H_e(G,x) = \sum_{k \geq 0} d(G,k)x^k$. We
investigate the edge-Hosoya polynomial of important chemical graphs known as
benzenoid chains and derive the recurrence relations for them. These
recurrences are then solved for linear benzenoid chains, which are also called
polyacenes.
|
[{'version': 'v1', 'created': 'Fri, 15 Dec 2017 07:14:28 GMT'}]
|
2019-04-09
|
[array(['Tratnik', 'Niko', ''], dtype=object)
array(['Pleteršek', 'Petra Žigert', ''], dtype=object)]
|
6,318 |
1612.00738
|
Hakan Bilen
|
Hakan Bilen, Basura Fernando, Efstratios Gavves, Andrea Vedaldi
|
Action Recognition with Dynamic Image Networks
|
14 pages, 9 figures, 9 tables
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We introduce the concept of "dynamic image", a novel compact representation
of videos useful for video analysis, particularly in combination with
convolutional neural networks (CNNs). A dynamic image encodes temporal data
such as RGB or optical flow videos by using the concept of `rank pooling'. The
idea is to learn a ranking machine that captures the temporal evolution of the
data and to use the parameters of the latter as a representation. When a linear
ranking machine is used, the resulting representation is in the form of an
image, which we call dynamic because it summarizes the video dynamics in
addition of appearance. This is a powerful idea because it allows to convert
any video to an image so that existing CNN models pre-trained for the analysis
of still images can be immediately extended to videos. We also present an
efficient and effective approximate rank pooling operator, accelerating
standard rank pooling algorithms by orders of magnitude, and formulate that as
a CNN layer. This new layer allows generalizing dynamic images to dynamic
feature maps. We demonstrate the power of the new representations on standard
benchmarks in action recognition achieving state-of-the-art performance.
|
[{'version': 'v1', 'created': 'Fri, 2 Dec 2016 16:33:06 GMT'}
{'version': 'v2', 'created': 'Sat, 19 Aug 2017 20:54:07 GMT'}]
|
2017-08-22
|
[array(['Bilen', 'Hakan', ''], dtype=object)
array(['Fernando', 'Basura', ''], dtype=object)
array(['Gavves', 'Efstratios', ''], dtype=object)
array(['Vedaldi', 'Andrea', ''], dtype=object)]
|
6,319 |
1009.4744
|
Eduardo Mascarenhas
|
Eduardo Mascarenhas, Breno Marques, Marcelo Terra Cunha and Marcelo
Fran\c{c}a Santos
|
Continuous Quantum Error Correction Through Local Operations
|
Accepted for publication in Phys. Rev. A
|
Phys. Rev. A 82, 032327 (2010)
|
10.1103/PhysRevA.82.032327
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We propose local strategies to protect global quantum information. The
protocols, which are quantum error correcting codes for dissipative systems,
are based on environment measurements, direct feedback control and simple
encoding of the logical qubits into physical qutrits whose decaying transitions
are indistinguishable and equally probable. The simple addition of one extra
level in the description of the subsystems allows for local actions to fully
and deterministically protect global resources, such as entanglement. We
present codes for both quantum jump and quantum state diffusion measurement
strategies and test them against several sources of inefficiency. The use of
qutrits in information protocols suggests further characterization of
qutrit-qutrit disentanglement dynamics, which we also give together with simple
local environment measurement schemes able to prevent distillability sudden
death and even enhance entanglement in situations in which our feedback error
correction is not possible.
|
[{'version': 'v1', 'created': 'Fri, 24 Sep 2010 00:57:22 GMT'}]
|
2011-01-13
|
[array(['Mascarenhas', 'Eduardo', ''], dtype=object)
array(['Marques', 'Breno', ''], dtype=object)
array(['Cunha', 'Marcelo Terra', ''], dtype=object)
array(['Santos', 'Marcelo França', ''], dtype=object)]
|
6,320 |
1903.00359
|
Minhan Li
|
Hiva Ghanbari, Minhan Li and Katya Scheinberg
|
Novel and Efficient Approximations for Zero-One Loss of Linear
Classifiers
|
arXiv admin note: text overlap with arXiv:1802.02535
| null | null | null |
stat.ML cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
The predictive quality of machine learning models is typically measured in
terms of their (approximate) expected prediction accuracy or the so-called Area
Under the Curve (AUC). Minimizing the reciprocals of these measures are the
goals of supervised learning. However, when the models are constructed by the
means of empirical risk minimization (ERM), surrogate functions such as the
logistic loss or hinge loss are optimized instead. In this work, we show that
in the case of linear predictors, the expected error and the expected ranking
loss can be effectively approximated by smooth functions whose closed form
expressions and those of their first (and second) order derivatives depend on
the first and second moments of the data distribution, which can be
precomputed. Hence, the complexity of an optimization algorithm applied to
these functions does not depend on the size of the training data. These
approximation functions are derived under the assumption that the output of the
linear classifier for a given data set has an approximately normal
distribution. We argue that this assumption is significantly weaker than the
Gaussian assumption on the data itself and we support this claim by
demonstrating that our new approximation is quite accurate on data sets that
are not necessarily Gaussian. We present computational results that show that
our proposed approximations and related optimization algorithms can produce
linear classifiers with similar or better test accuracy or AUC, than those
obtained using state-of-the-art approaches, in a fraction of the time.
|
[{'version': 'v1', 'created': 'Thu, 28 Feb 2019 18:04:51 GMT'}]
|
2019-03-04
|
[array(['Ghanbari', 'Hiva', ''], dtype=object)
array(['Li', 'Minhan', ''], dtype=object)
array(['Scheinberg', 'Katya', ''], dtype=object)]
|
6,321 |
2109.01095
|
Giorgio Orlando
|
Giorgio Orlando, P. Daniel Meerburg, Subodh P. Patil
|
Primordial tensor bispectra in $\mu$-CMB cross-correlations
|
36 pages, 6 figures. v3: Other typos corrected. Matched published
version
|
JCAP 02 (2022) 004
|
10.1088/1475-7516/2022/02/004
| null |
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Cross-correlations between Cosmic Microwave Background (CMB) temperature and
polarization anisotropies and $\mu$-spectral distortions have been considered
to measure (squeezed) primordial scalar bispectra in a range of scales
inaccessible to primary CMB bispectra. In this work we address whether it is
possible to constrain tensor non-Gaussianities with these cross-correlations.
We find that only primordial tensor bispectra with statistical anisotropies
leave distinct signatures, while isotropic tensor bispectra leave either
vanishing or highly suppressed signatures. We discuss how the angular
dependence of squeezed bispectra in terms of the short and long momenta
determine the non-zero cross-correlations. We also discuss how these
non-vanishing configurations are affected by the way in which primordial
bispectra transform under parity. By employing the so-called BipoSH formalism
to capture the observational effects of statistical anisotropies, we make
Fisher-forecasts to assess the detection prospects from $\mu T$, $\mu E$ and
$\mu B$ cross-correlations. Observing statistical anisotropies in squeezed
$\langle \gamma \gamma \gamma\rangle$ and $\langle \gamma \gamma \zeta\rangle$
bispectra is going to be challenging as the imprint of tensor perturbations on
$\mu$-distortions is subdominant to scalar perturbations, therefore requiring a
large, independent amplification of the effect of tensor perturbations in the
$\mu$-epoch. In absence of such a mechanism, statistical anisotropies in
squeezed $\langle \zeta \zeta \gamma\rangle$ bispectrum are the most relevant
sources of $\mu T$, $\mu E$ and $\mu B$ cross-correlations. In particular, we
point out that in anisotropic inflationary models where $\langle \zeta \zeta
\zeta \rangle$ leaves potentially observable signatures in $\mu T$ and $\mu E$,
the detection prospects of $\langle \zeta \zeta \gamma\rangle$ from $\mu B$ are
enhanced.
|
[{'version': 'v1', 'created': 'Thu, 2 Sep 2021 17:16:34 GMT'}
{'version': 'v2', 'created': 'Thu, 16 Dec 2021 14:33:22 GMT'}
{'version': 'v3', 'created': 'Thu, 3 Feb 2022 10:22:56 GMT'}]
|
2022-02-04
|
[array(['Orlando', 'Giorgio', ''], dtype=object)
array(['Meerburg', 'P. Daniel', ''], dtype=object)
array(['Patil', 'Subodh P.', ''], dtype=object)]
|
6,322 |
1803.10662
|
Dennis Lehmkuhl
|
Diana Kormos Buchwald, J\'ozsef Illy, A.J. Kox, Dennis Lehmkuhl, Ze'ev
Rosenkranz, Jennifer Nollar James, Anthony Duncan, Marco Giovanelli, Michel
Janssen, Daniel J. Kennefick, Issachar Unna, Emily de Ara\'ujo, Rudy
Hirschmann, Nurit Lifshitz, Barbara Wolff
|
Introduction to Volume 15 of The Collected Papers of Albert Einstein.
The Berlin Years: Writings and Correspondence June 1925 - May 1927
|
Corresponding Editor: Dennis Lehmkuhl ([email protected]). The
complete volume is available from Princeton University Press:
https://press.princeton.edu/titles/11327.html
| null | null | null |
physics.hist-ph gr-qc quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This volume covers one of the most thrilling two-year periods in
twentieth-century physics, as matrix mechanics - developed chiefly by W.
Heisenberg, M. Born, and P. Jordan - and wave mechanics - developed by E.
Schr\"odinger - supplanted the earlier quantum theory. The almost one hundred
writings by Einstein, of which a third have never been published, and the more
than thirteen hundred letters show Einstein's immense productivity and hectic
pace of life.
Einstein quickly grasps the conceptual peculiarities involved in the new
quantum mechanics, such as the difference between Schr\"odinger's wave function
and a field defined in spacetime, or the emerging statistical interpretation of
both matrix and wave mechanics. Inspired by correspondence with G. Y. Rainich,
he investigates with Jakob Grommer the problem of motion in general relativity,
hoping for a hint at a new avenue to unified field theory.
Einstein falls victim to scientific fraud when, in a collaboration with E.
Rupp, he becomes convinced that the latter's experiments, aimed at deciding
whether excited atoms emit light instantaneously (in quanta) or in a finite
time (in waves), confirm a wave-theoretic explanation.
While it was known that the teenage Einstein had been romantically involved
with Marie Winteler in 1895, newly discovered documents reveal that his love
for Marie was rekindled in 1909-10 while he was still married to Mileva
Mari\'c.
The 1925 Locarno Treaties renew Einstein's optimism in European
reconciliation. He backs the `International manifesto against compulsory
military service' and continues his participation in the League of Nations'
International Committee on Intellectual Cooperation. He remains intensely
committed to the shaping of the Hebrew University in Jerusalem, although his
enthusiasm for this cause is sorely tested.
|
[{'version': 'v1', 'created': 'Wed, 28 Mar 2018 14:51:20 GMT'}]
|
2018-03-29
|
[array(['Buchwald', 'Diana Kormos', ''], dtype=object)
array(['Illy', 'József', ''], dtype=object)
array(['Kox', 'A. J.', ''], dtype=object)
array(['Lehmkuhl', 'Dennis', ''], dtype=object)
array(['Rosenkranz', "Ze'ev", ''], dtype=object)
array(['James', 'Jennifer Nollar', ''], dtype=object)
array(['Duncan', 'Anthony', ''], dtype=object)
array(['Giovanelli', 'Marco', ''], dtype=object)
array(['Janssen', 'Michel', ''], dtype=object)
array(['Kennefick', 'Daniel J.', ''], dtype=object)
array(['Unna', 'Issachar', ''], dtype=object)
array(['de Araújo', 'Emily', ''], dtype=object)
array(['Hirschmann', 'Rudy', ''], dtype=object)
array(['Lifshitz', 'Nurit', ''], dtype=object)
array(['Wolff', 'Barbara', ''], dtype=object)]
|
6,323 |
1501.05152
|
Heng Yang
|
Heng Yang and Ioannis Patras
|
Mirror, mirror on the wall, tell me, is the error small?
|
8 pages, 9 figures
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Do object part localization methods produce bilaterally symmetric results on
mirror images? Surprisingly not, even though state of the art methods augment
the training set with mirrored images. In this paper we take a closer look into
this issue. We first introduce the concept of mirrorability as the ability of a
model to produce symmetric results in mirrored images and introduce a
corresponding measure, namely the \textit{mirror error} that is defined as the
difference between the detection result on an image and the mirror of the
detection result on its mirror image. We evaluate the mirrorability of several
state of the art algorithms in two of the most intensively studied problems,
namely human pose estimation and face alignment. Our experiments lead to
several interesting findings: 1) Surprisingly, most of state of the art methods
struggle to preserve the mirror symmetry, despite the fact that they do have
very similar overall performance on the original and mirror images; 2) the low
mirrorability is not caused by training or testing sample bias - all algorithms
are trained on both the original images and their mirrored versions; 3) the
mirror error is strongly correlated to the localization/alignment error (with
correlation coefficients around 0.7). Since the mirror error is calculated
without knowledge of the ground truth, we show two interesting applications -
in the first it is used to guide the selection of difficult samples and in the
second to give feedback in a popular Cascaded Pose Regression method for face
alignment.
|
[{'version': 'v1', 'created': 'Wed, 21 Jan 2015 12:22:38 GMT'}]
|
2015-01-22
|
[array(['Yang', 'Heng', ''], dtype=object)
array(['Patras', 'Ioannis', ''], dtype=object)]
|
6,324 |
math/0604010
|
Robert Eymard
|
J\'er\^ome Droniou (I3M), Robert Eymard (LAMA, LETEM)
|
A mixed finite volume scheme for anisotropic diffusion problems on any
grid
| null | null | null | null |
math.NA
| null |
We present a new finite volume scheme for anisotropic heterogeneous diffusion
problems on unstructured irregular grids, which simultaneously gives an
approximation of the solution and of its gradient. In the case of simplicial
meshes, the approximate solution is shown to converge to the continuous ones as
the size of the mesh tends to 0, and an error estimate is given. In the general
case, we propose a slightly modified scheme for which we again prove the
convergence, and give an error estimate. An easy implementation method is then
proposed, and the efficiency of the scheme is shown on various types of grids.
|
[{'version': 'v1', 'created': 'Mon, 3 Apr 2006 14:49:37 GMT'}]
|
2016-08-16
|
[array(['Droniou', 'Jérôme', '', 'I3M'], dtype=object)
array(['Eymard', 'Robert', '', 'LAMA, LETEM'], dtype=object)]
|
6,325 |
2210.07949
|
Theodore Brzinski III
|
John Colt, Lucas Nelson, Sykes Cargile, Ted Brzinski, Scott V.
Franklin
|
Properties of packings and dispersions of superellipse sector particles
|
7 pages, 6 figures
| null | null | null |
cond-mat.soft
|
http://creativecommons.org/licenses/by/4.0/
|
Superellipse sector particles (SeSPs) are segments of superelliptical curves
that form a tunable set of hard-particle shapes for granular and colloidal
systems. SeSPs allow for continuous parameterization of corner sharpness,
aspect ratio, and particle curvature; rods, circles, rectangles, and staples
are examples of shapes SeSPs can model. We compare three computational
processes: pair-wise Monte Carlo simulations that look only at
particle-particle geometric constraints, Monte Carlo simulations that look at
how these geometric constraints play out over extended dispersions of many
particles, and Molecular Dynamics simulations that allow particles to interact
to form random loose and close packings. We investigate the dependence of
critical random loose and close packing fractions on particle parameters,
finding that both values tend to increase with opening aperture (as expected)
and, in general, decrease with increasing corner sharpness. The identified
packing fractions are compared with the mean-field prediction of the Random
Contact Model. We find deviations from the model's prediction due to
correlations between particle orientations. The complex interaction of spatial
proximity and orientational alignment is explored using a generalized
Spatio-Orientational Distribution Area (SODA) plot. Higher density packings are
achieved through particles assuming a small number of preferred configurations
which depend sensitively on particle shape and system preparation.
|
[{'version': 'v1', 'created': 'Fri, 14 Oct 2022 16:42:31 GMT'}]
|
2022-10-17
|
[array(['Colt', 'John', ''], dtype=object)
array(['Nelson', 'Lucas', ''], dtype=object)
array(['Cargile', 'Sykes', ''], dtype=object)
array(['Brzinski', 'Ted', ''], dtype=object)
array(['Franklin', 'Scott V.', ''], dtype=object)]
|
6,326 |
2301.05301
|
Dan Frumin
|
Alen Arslanagi\'c, Jorge A. P\'erez, Dan Frumin
|
A Minimal Formulation of Session Types
|
arXiv admin note: text overlap with arXiv:1906.03836
| null | null | null |
cs.PL
|
http://creativecommons.org/licenses/by/4.0/
|
Session types are a type-based approach to the verification of
message-passing programs. They specify communication structures essential for
program correctness; a session type says what and when should be exchanged
through a channel. Central to session-typed languages are sequencing constructs
in types and processes that explicitly specify the order of actions in a
protocol.
In this paper we study session types without sequencing. The resulting
framework of minimal session types is arguably the simplest form of session
types one could conceive. In the context of a core process calculus with
sessions and higher-order concurrency (abstraction-passing), we establish two
main technical results. First, we prove that every process $P$ typable with
standard session types can be compiled down into a process $\mathcal{D}(P)$
typable with minimal session types. Second, we prove that $P$ and
$\mathcal{D}(P)$ are behaviorally equivalent. These results indicate that
having sequencing constructs in processes and session types is convenient but
redundant: only sequentiality in processes is truly indispensable, as it can
correctly codify sequentiality in types.
Our developments draw inspiration from work by Parrow on behavior-preserving
decompositions of untyped processes. By casting Parrow's results in the realm
of typed processes, our developments reveal a conceptually simple formulation
of session types and a principled avenue to the integration of session types
into programming languages without sequencing in types.
|
[{'version': 'v1', 'created': 'Thu, 12 Jan 2023 21:25:28 GMT'}]
|
2023-01-16
|
[array(['Arslanagić', 'Alen', ''], dtype=object)
array(['Pérez', 'Jorge A.', ''], dtype=object)
array(['Frumin', 'Dan', ''], dtype=object)]
|
6,327 |
hep-ex/0411072
|
Arnd Meyer
|
Arnd Meyer (for the D0 and CDF Collaborations)
|
Searches for Supersymmetry at the Tevatron
|
To appear in the proceedings of 32nd International Conference on
High-Energy Physics (ICHEP 04), Beijing, China, 16-22 Aug 2004
| null |
10.1142/9789812702227_0260
| null |
hep-ex
| null |
Both Tevatron experiments, D0 and CDF, have searched for signs of
Supersymmetry in the present Run II data sample, using integrated luminosities
of up to 260/pb collected in ppbar collisions at a center-of-mass energy of
1.96TeV. In these proceedings, new results are presented in the search for
squarks and gluinos in the jets and missing transverse energy final state,
associated production of charginos and neutralinos with multilepton final
states, search for the rare decay B_s->mumu, searches allowing R-parity
violation (muons+jets, multileptons), and searches in the gauge mediated
supersymmetry breaking framework with the final state of two photons and
missing transverse energy. In the absence of any significant deviation from
Standard Model expectations, limits on the presence of new physics are set,
which in many cases are the most stringent to date.
|
[{'version': 'v1', 'created': 'Tue, 23 Nov 2004 17:05:24 GMT'}]
|
2019-08-14
|
[array(['Meyer', 'Arnd', '', 'for the D0 and CDF Collaborations'],
dtype=object) ]
|
6,328 |
1903.04300
|
Arthur Queffelec
|
Tristan Charrier, Arthur Queffelec, Ocan Sankur and Fran\c{c}ois
Schwarzentruber
|
Reachability and Coverage Planning for Connected Agents: Extended
Version
| null | null | null | null |
cs.AI cs.DS cs.MA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Motivated by the increasing appeal of robots in information-gathering
missions, we study multi-agent path planning problems in which the agents must
remain interconnected. We model an area by a topological graph specifying the
movement and the connectivity constraints of the agents. We study the
theoretical complexity of the reachability and the coverage problems of a fleet
of connected agents on various classes of topological graphs. We establish the
complexity of these problems on known classes, and introduce a new class called
sight-moveable graphs which admit efficient algorithms.
|
[{'version': 'v1', 'created': 'Mon, 11 Mar 2019 13:52:57 GMT'}]
|
2019-03-12
|
[array(['Charrier', 'Tristan', ''], dtype=object)
array(['Queffelec', 'Arthur', ''], dtype=object)
array(['Sankur', 'Ocan', ''], dtype=object)
array(['Schwarzentruber', 'François', ''], dtype=object)]
|
6,329 |
2201.06099
|
Lucas L. Treffenst\"adt
|
Lucas L. Treffenst\"adt, Thomas Schindler, Matthias Schmidt
|
Dynamic Decay and Superadiabatic Forces in the van Hove Dynamics of Bulk
Hard Sphere Fluids
|
Submission to SciPost Updated to address referee's questions and
concerns
|
SciPost Phys. 12, 133 (2022)
|
10.21468/SciPostPhys.12.4.133
| null |
cond-mat.soft
|
http://creativecommons.org/licenses/by/4.0/
|
We study the dynamical decay of the van Hove function of Brownian hard
spheres using event-driven Brownian dynamics simulations and dynamic test
particle theory. Relevant decays mechanisms include deconfinement of the self
particle, decay of correlation shells, and shell drift. Comparison to results
for the Lennard-Jones system indicates the generality of these mechanisms for
dense overdamped liquids. We use dynamical density functional theory on the
basis of the Rosenfeld functional with self interaction correction.
Superadiabatic forces are analysed using a recent power functional
approximation. The power functional yields a modified Einstein long-time self
diffusion coefficient in good agreement with simulation data.
|
[{'version': 'v1', 'created': 'Sun, 16 Jan 2022 17:47:41 GMT'}
{'version': 'v2', 'created': 'Sat, 19 Mar 2022 16:20:10 GMT'}]
|
2022-04-20
|
[array(['Treffenstädt', 'Lucas L.', ''], dtype=object)
array(['Schindler', 'Thomas', ''], dtype=object)
array(['Schmidt', 'Matthias', ''], dtype=object)]
|
6,330 |
0912.3943
|
Stacy McGaugh
|
Stacy McGaugh
|
Baryons and Their Halos
|
4 pages. Invited contribution to "Hunting for the Dark: The Hidden
Side of Galaxy Formation", Malta, 19-23 Oct. 2009, eds. V.P. Debattista &
C.C. Popescu, AIP Conf. Ser., in press
|
AIP Conf.Proc.1240:13-16,2010
|
10.1063/1.3458469
| null |
astro-ph.GA astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Galaxies are composed of baryonic stars and gas embedded in dark matter
halos. Here I briefly review two aspects of the connection between baryons and
their halos. (1) The observed baryon content of galaxies falls short of the
cosmic baryon fraction by an amount that varies systematically with mass. Where
these missing baryons now reside is unclear. (2) The characteristic
acceleration in disk galaxies correlates strongly with their baryonic mass
surface density. This implies a close coupling between the gravitational
dynamics, which is presumably dominated by dark matter, and the purely baryonic
components of galaxies.
|
[{'version': 'v1', 'created': 'Sat, 19 Dec 2009 22:14:10 GMT'}]
|
2014-11-20
|
[array(['McGaugh', 'Stacy', ''], dtype=object)]
|
6,331 |
1612.00816
|
Dionisis Theodosis
|
Dionysis Theodosis, Dimitris Boskos, John Tsinias
|
Observer design for triangular systems under weak observability
assumptions
| null | null | null | null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper presents results on the solvability of the observer design problem
for general nonlinear triangular systems with inputs, under weak observability
assumptions. The local state estimation is exhibited by means of a delayed
time-varying Luenberger-type system. In order to achieve the global estimation,
a switching sequence of observers is designed.
|
[{'version': 'v1', 'created': 'Fri, 2 Dec 2016 20:05:10 GMT'}]
|
2016-12-05
|
[array(['Theodosis', 'Dionysis', ''], dtype=object)
array(['Boskos', 'Dimitris', ''], dtype=object)
array(['Tsinias', 'John', ''], dtype=object)]
|
6,332 |
gr-qc/9510052
|
Peter Musgrave
|
P. Musgrave and K. Lake
|
Junctions and thin shells in general relativity using computer algebra
I: The Darmois-Israel Formalism
|
Minor LaTeX error corrected. GRjunction for GRTensorII is available
from http://astro.queensu.ca/~grtensor/GRjunction.html
|
Class.Quant.Grav. 13 (1996) 1885-1900
|
10.1088/0264-9381/13/7/018
| null |
gr-qc astro-ph hep-th
| null |
We present the GRjunction package which allows boundary surfaces and
thin-shells in general relativity to be studied with a computer algebra system.
Implementing the Darmois-Israel thin shell formalism requires a careful
selection of definitions and algorithms to ensure that results are generated in
a straight-forward way. We have used the package to correctly reproduce a wide
variety of examples from the literature. We present several of these
verifications as a means of demonstrating the packages capabilities. We then
use GRjunction to perform a new calculation - joining two Kerr solutions with
differing masses and angular momenta along a thin shell in the slow rotation
limit.
|
[{'version': 'v1', 'created': 'Wed, 25 Oct 1995 19:40:13 GMT'}
{'version': 'v2', 'created': 'Fri, 8 Dec 1995 15:13:12 GMT'}
{'version': 'v3', 'created': 'Mon, 11 Dec 1995 14:02:33 GMT'}]
|
2009-10-28
|
[array(['Musgrave', 'P.', ''], dtype=object)
array(['Lake', 'K.', ''], dtype=object)]
|
6,333 |
1503.01786
|
Giuseppe Carleo
|
Lorenzo Cevolani, Giuseppe Carleo, Laurent Sanchez-Palencia
|
Protected quasi-locality in quantum systems with long-range interactions
| null |
Physical Review A 92, 041603(R) (2015)
|
10.1103/PhysRevA.92.041603
| null |
cond-mat.quant-gas
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the out-of-equilibrium dynamics of quantum systems with long-range
interactions. Two different models describing, respectively, interacting
lattice bosons and spins are considered. Our study relies on a combined
approach based on accurate many-body numerical calculations as well as on a
quasiparticle microscopic theory. For sufficiently fast decaying long-range
potentials, we find that the quantum speed limit set by the long-range
Lieb-Robinson bounds is never attained and a purely ballistic behavior is
found. For slowly decaying potentials, a radically different scenario is
observed. In the bosonic case, a remarkable local spreading of correlations is
still observed, despite the existence of infinitely fast traveling excitations
in the system. This is in marked contrast to the spin case, where locality is
broken. We finally provide a microscopic justification of the different regimes
observed and of the origin of the protected locality in the bosonic model.
|
[{'version': 'v1', 'created': 'Thu, 5 Mar 2015 21:07:01 GMT'}
{'version': 'v2', 'created': 'Mon, 9 Mar 2015 17:36:14 GMT'}
{'version': 'v3', 'created': 'Fri, 23 Oct 2015 17:36:40 GMT'}]
|
2015-10-26
|
[array(['Cevolani', 'Lorenzo', ''], dtype=object)
array(['Carleo', 'Giuseppe', ''], dtype=object)
array(['Sanchez-Palencia', 'Laurent', ''], dtype=object)]
|
6,334 |
0812.4069
|
Vladimir Dotsenko
|
Vladimir Dotsenko and Anton Khoroshkin
|
Gr\"obner bases for operads
|
28 pages, to appear in Duke Math. Journal
|
Duke Math. J. 153, no. 2 (2010), 363-396
|
10.1215/00127094-2010-026
| null |
math.QA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We define a new monoidal category on collections (shuffle composition).
Monoids in this category (shuffle operads) turn out to bring a new insight in
the theory of symmetric operads. For this category, we develop the machinery of
Gr\"obner bases for operads, and present operadic versions of Bergman's Diamond
Lemma and Buchberger's algorithm. This machinery can be applied to study
symmetric operads. In particular, we obtain an effective algorithmic version of
Hoffbeck's PBW criterion of Koszulness for (symmetric) quadratic operads.
|
[{'version': 'v1', 'created': 'Sun, 21 Dec 2008 23:22:13 GMT'}
{'version': 'v2', 'created': 'Wed, 9 Sep 2009 11:46:08 GMT'}]
|
2019-12-19
|
[array(['Dotsenko', 'Vladimir', ''], dtype=object)
array(['Khoroshkin', 'Anton', ''], dtype=object)]
|
6,335 |
hep-lat/0108016
|
P. R. Crompton
|
P. R. Crompton
|
Composite Reweighting the Glasgow Method for Finite Density QCD
|
5 pages, 4 figures
|
Nucl.Phys.B619:499-506,2001
|
10.1016/S0550-3213(01)00519-3
| null |
hep-lat
| null |
The reweighting method developed in Glasgow to circumvent the lattice action
becoming complex at finite density suffers from a pathological onset transition
thought to be due to the reweighting. We present a new reweighting scheme based
on this approach in which we combine ensembles to alleviate the sampling bias
we identify in the polynomial coefficients of the fugacity expansion.
|
[{'version': 'v1', 'created': 'Tue, 14 Aug 2001 11:33:00 GMT'}]
|
2008-11-26
|
[array(['Crompton', 'P. R.', ''], dtype=object)]
|
6,336 |
1506.02840
|
Hanzhong Zhang
|
Zhi-Quan Liu, Hanzhong Zhang, Ben-Wei Zhang and Enke Wang
|
Quantifying jet transport properties via large $p_T$ hadron production
|
8 pages, 6 figures, revised version
| null |
10.1140/epjc/s10052-016-3885-3
| null |
nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Nuclear modification factor $R_{AA}$ for large $p_T$ single hadron is studied
in a next-to-leading order (NLO) perturbative QCD (pQCD) parton model with
medium-modified fragmentation functions (mFFs) due to jet quenching in
high-energy heavy-ion collisions. The energy loss of the hard partons in the
QGP is incorporated in the mFFs which utilize two most important parameters to
characterize the transport properties of the hard parton jets: the jet
transport parameter $\hat q_{0}$ and the mean free path $\lambda_{0}$, both at
the initial time $\tau_0$. A phenomenological study of the experimental data
for $R_{AA}(p_{T})$ is performed to constrain the two parameters with
simultaneous $\chi^2/{\rm d.o.f}$ fits to RHIC as well as LHC data. We obtain
for energetic quarks $\hat q_{0}\approx 1.1 \pm 0.2$ GeV$^2$/fm and
$\lambda_{0}\approx 0.4 \pm 0.03$ fm in central $Au+Au$ collisions at
$\sqrt{s_{NN}}=200$ GeV, while $\hat q_{0}\approx 1.7 \pm 0.3$ GeV$^2$/fm, and
$\lambda_{0}\approx 0.5 \pm 0.05$ fm in central $Pb+Pb$ collisions at
$\sqrt{s_{NN}}=2.76$ TeV. Numerical analysis shows that the best fit favors a
multiple scattering picture for the energetic jets propagating through the bulk
medium, with a moderate averaged number of gluon emissions. Based on the best
constraints for $\lambda_{0}$ and $\tau_0$, the estimated value for the
mean-squared transverse momentum broadening is moderate which implies that the
hard jets go through the medium with small reflection.
|
[{'version': 'v1', 'created': 'Tue, 9 Jun 2015 09:36:51 GMT'}
{'version': 'v2', 'created': 'Thu, 8 Oct 2015 10:03:50 GMT'}
{'version': 'v3', 'created': 'Mon, 21 Dec 2015 09:22:50 GMT'}]
|
2016-02-17
|
[array(['Liu', 'Zhi-Quan', ''], dtype=object)
array(['Zhang', 'Hanzhong', ''], dtype=object)
array(['Zhang', 'Ben-Wei', ''], dtype=object)
array(['Wang', 'Enke', ''], dtype=object)]
|
6,337 |
2110.12401
|
Haowen Sun
|
Haowen Sun, Taiyong Wang
|
A Dynamic Keypoints Selection Network for 6DoF Pose Estimation
|
13 pages, 4 figures
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
6 DoF poses estimation problem aims to estimate the rotation and translation
parameters between two coordinates, such as object world coordinate and camera
world coordinate. Although some advances are made with the help of deep
learning, how to full use scene information is still a problem. Prior works
tackle the problem by pixel-wise feature fusion but need to randomly selecte
numerous points from images, which can not satisfy the demands of fast
inference simultaneously and accurate pose estimation. In this work, we present
a novel deep neural network based on dynamic keypoints selection designed for
6DoF pose estimation from a single RGBD image. Our network includes three
parts, instance semantic segmentation, edge points detection and 6DoF pose
estimation. Given an RGBD image, our network is trained to predict pixel
category and the translation to edge points and center points. Then, a
least-square fitting manner is applied to estimate the 6DoF pose parameters.
Specifically, we propose a dynamic keypoints selection algorithm to choose
keypoints from the foreground feature map. It allows us to leverage geometric
and appearance information. During 6DoF pose estimation, we utilize the
instance semantic segmentation result to filter out background points and only
use foreground points to finish edge points detection and 6DoF pose estimation.
Experiments on two commonly used 6DoF estimation benchmark datasets, YCB-Video
and LineMoD, demonstrate that our method outperforms the state-of-the-art
methods and achieves significant improvements over other same category methods
time efficiency.
|
[{'version': 'v1', 'created': 'Sun, 24 Oct 2021 09:58:56 GMT'}]
|
2021-10-26
|
[array(['Sun', 'Haowen', ''], dtype=object)
array(['Wang', 'Taiyong', ''], dtype=object)]
|
6,338 |
2205.12965
|
Kristian M{\ae}land
|
Kristian M{\ae}land and Asle Sudb{\o}
|
Quantum topological phase transitions in skyrmion crystals
|
6+17 pages, 2+3 figures, includes supplemental material, accepted in
Physical Review Research
|
Phys. Rev. Res. 4, L032025 (2022)
|
10.1103/PhysRevResearch.4.L032025
|
QuSpin 2022
|
cond-mat.str-el cond-mat.mes-hall cond-mat.stat-mech
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Topological order is important in many aspects of condensed matter physics,
and has been extended to bosonic systems. In this Letter we report on the
nontrivial topology of the magnon bands in two distinct quantum skyrmion
crystals appearing in zero external magnetic field. This is revealed by nonzero
Chern numbers for some of the bands. As a bosonic analog of the quantum
anomalous Hall effect, we show that topological magnons can appear in skyrmion
crystals without explicitly breaking time-reversal symmetry with an external
magnetic field. By tuning the value of the easy-axis anisotropy at zero
temperature, we find eight quantum topological phase transitions signaled by
discontinuous jumps in certain Chern numbers. We connect these quantum
topological phase transitions to gaps closing and reopening between magnon
bands.
|
[{'version': 'v1', 'created': 'Wed, 25 May 2022 18:00:00 GMT'}
{'version': 'v2', 'created': 'Thu, 11 Aug 2022 08:53:55 GMT'}]
|
2022-08-15
|
[array(['Mæland', 'Kristian', ''], dtype=object)
array(['Sudbø', 'Asle', ''], dtype=object)]
|
6,339 |
1903.01548
|
Namwoo Kang
|
Sangeun Oh, Yongsu Jung, Seongsin Kim, Ikjin Lee, Namwoo Kang
|
Deep Generative Design: Integration of Topology Optimization and
Generative Models
| null |
Journal of Mechanical Design, 141(11), 111405
|
10.1115/1.4044229
| null |
cs.LG cs.CE cs.NE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Deep learning has recently been applied to various research areas of design
optimization. This study presents the need and effectiveness of adopting deep
learning for generative design (or design exploration) research area. This work
proposes an artificial intelligent (AI)-based design automation framework that
is capable of generating numerous design options which are not only aesthetic
but also optimized for engineering performance. The proposed framework
integrates topology optimization and deep generative models (e.g., generative
adversarial networks (GANs)) in an iterative manner to explore new design
options, thus generating a large number of designs starting from limited
previous design data. In addition, anomaly detection can evaluate the novelty
of generated designs, thus helping designers choose among design options. The
2D wheel design problem is applied as a case study for validation of the
proposed framework. The framework manifests better aesthetics, diversity, and
robustness of generated designs than previous generative design methods.
|
[{'version': 'v1', 'created': 'Fri, 1 Mar 2019 07:38:41 GMT'}
{'version': 'v2', 'created': 'Mon, 20 May 2019 14:07:42 GMT'}]
|
2020-05-27
|
[array(['Oh', 'Sangeun', ''], dtype=object)
array(['Jung', 'Yongsu', ''], dtype=object)
array(['Kim', 'Seongsin', ''], dtype=object)
array(['Lee', 'Ikjin', ''], dtype=object)
array(['Kang', 'Namwoo', ''], dtype=object)]
|
6,340 |
1706.05110
|
Fabio Duvan Lora Clavijo Mr.
|
Anamar\'ia Navarro, F. D. Lora-Clavijo and Guillermo A. Gonz\'alez
|
MAGNUS: A new resistive MHD code with heat flow terms
|
15 Pages, 33 eps figures, 4 tables, Accepted for publication in
Astrophysical Journal Supplement Series
| null |
10.3847/1538-4357/aa7a13
| null |
astro-ph.SR astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a new magnetohydrodynamic (MHD) code for the simulation of wave
propagation in the solar atmosphere, under the effects of electrical
resistivity, but not dominant, and heat transference in a uniform 3D grid. The
code is based on the finite volume method combined with the HLLE and HLLC
approximate Riemann solvers, which use different slope limiters like MINMOD,
MC, and WENO5. In order to control the growth of the divergence of the magnetic
field, due to numerical errors, we apply the Flux Constrained Transport method,
which is described in detail to understand how the resistive terms are included
in the algorithm. In our results, it is verified that this method preserves the
divergence of the magnetic fields within the machine round-off error. For the
validation of the accuracy and efficiency of the schemes implemented in the
code, we present some numerical tests in 1D and 2D for the ideal MHD. Later, we
show one test for the resistivity in a magnetic reconnection process and one
for the thermal conduction, where the temperature is advected by the magnetic
field lines. Moreover, we display two numerical problems associated with the
MHD wave propagation. The first one corresponds to a 3D evolution of a vertical
velocity pulse at the photosphere-transition-corona region, while the second
one consists in a 2D simulation of a transverse velocity pulse in a coronal
loop.
|
[{'version': 'v1', 'created': 'Thu, 15 Jun 2017 22:53:25 GMT'}]
|
2017-08-02
|
[array(['Navarro', 'Anamaría', ''], dtype=object)
array(['Lora-Clavijo', 'F. D.', ''], dtype=object)
array(['González', 'Guillermo A.', ''], dtype=object)]
|
6,341 |
2302.05997
|
Robert Kent
|
Robert E. Kent
|
The FOLE Database
|
42 pages, 17 figures, 9 tables
| null | null | null |
cs.DB
|
http://creativecommons.org/licenses/by/4.0/
|
This paper continues the discussion of the representation and interpretation
of ontologies in the first-order logical environment {\ttfamily FOLE} (Kent).
Ontologies are represented and interpreted in (many-sorted) first-order logic.
Five papers provide a rigorous mathematical representation for the {\ttfamily
ERA} (entity-relationship-attribute) data model (Chen) in particular, and
ontologies in general, within the first-order logical environment {\ttfamily
FOLE}. Two papers (Kent and another paper) represent the formalism and
semantics of (many-sorted) first-order logic in a \emph{classification form}
corresponding to ideas discussed in the Information Flow Framework (IFF). Two
papers (Kent and the current paper) represent (many-sorted) first-order logic
in an \emph{interpretation form} expanding on material found in the paper
(Kent). A fifth paper (Kent) demonstrates that the classification form of
{\ttfamily FOLE} is "informationally equivalent" to the interpretation form of
{\ttfamily FOLE}, thereby defining the formalism and semantics of first-order
logical/relational database systems. Although the classification form follows
the entity-relationship-attribute data model of Chen, the interpretation form
incorporates the relational data model of Codd. Two further papers discuss the
"relational algebra" (Kent) and the "relational calculus". In general, the
{\ttfamily FOLE} representation uses a conceptual structures approach, that is
completely compatible with the theory of institutions (Goguen and Burstall),
formal concept analysis (Ganter and Wille), and information flow (Barwise and
Seligman).
|
[{'version': 'v1', 'created': 'Sun, 12 Feb 2023 20:49:38 GMT'}
{'version': 'v2', 'created': 'Mon, 20 Feb 2023 00:03:56 GMT'}
{'version': 'v3', 'created': 'Tue, 7 Mar 2023 19:58:53 GMT'}
{'version': 'v4', 'created': 'Fri, 21 Apr 2023 19:29:22 GMT'}]
|
2023-04-25
|
[array(['Kent', 'Robert E.', ''], dtype=object)]
|
6,342 |
1211.3725
|
Cristian Stelea
|
Cristian Stelea, Marian C. Ghilea
|
A black ring on the Taub-bolt instanton in five dimensions
|
14 pages, 1 figure, added references. arXiv admin note: text overlap
with arXiv:1211.3154
| null |
10.1016/j.physletb.2013.01.009
| null |
gr-qc hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Using a solution generating technique, we derive a new exact solution
describing a charged static black ring on the Taub-bolt gravitational instanton
in five dimensions. Unlike the black ring constructed on the self-dual Taub-NUT
instanton, it turns out that it is possible to find values of the parameters
for which the static black ring is in equilibrium and the conical singularities
disappear. We compute its conserved charges and discuss some of its
thermodynamic properties.
|
[{'version': 'v1', 'created': 'Thu, 15 Nov 2012 20:37:55 GMT'}
{'version': 'v2', 'created': 'Mon, 19 Nov 2012 20:00:30 GMT'}]
|
2015-06-12
|
[array(['Stelea', 'Cristian', ''], dtype=object)
array(['Ghilea', 'Marian C.', ''], dtype=object)]
|
6,343 |
quant-ph/0410183
|
Gabriele De Chiara
|
Gabriele De Chiara, Artur Lozinski and G. Massimo Palma
|
Berry phase in open quantum systems: a quantum Langevin equation
approach
|
6 pages, no figures. Published version
|
Eur. Phys. J. D 41, 179-183 (2007)
|
10.1140/epjd/e2006-00186-y
| null |
quant-ph cond-mat.mes-hall
| null |
The evolution of a two level system with a slowly varying Hamiltonian,
modeled as s spin 1/2 in a slowly varying magnetic field, and interacting with
a quantum environment, modeled as a bath of harmonic oscillators is analyzed
using a quantum Langevin approach. This allows to easily obtain the dissipation
time and the correction to the Berry phase in the case of an adiabatic cyclic
evolution.
|
[{'version': 'v1', 'created': 'Fri, 22 Oct 2004 16:19:00 GMT'}
{'version': 'v2', 'created': 'Mon, 8 Jan 2007 08:35:28 GMT'}]
|
2007-05-23
|
[array(['De Chiara', 'Gabriele', ''], dtype=object)
array(['Lozinski', 'Artur', ''], dtype=object)
array(['Palma', 'G. Massimo', ''], dtype=object)]
|
6,344 |
1811.02498
|
Giacomo Cherubini
|
Giacomo Cherubini, Alberto Perelli
|
A spectral universality theorem for Maass $L$-functions
|
12 pages, final version, corrected typos
|
J. Number Theory 204 (2019), 608-623
| null | null |
math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that for a positive proportion of Laplace eigenvalues $\lambda_j$ the
associated Hecke-Maass $L$-functions $L(s,u_j)$ approximate with arbitrary
precision any target function $f(s)$ on a closed disc with center in $3/4$ and
radius $r<1/4$. The main ingredients in the proof are the spectral large sieve
of Deshouillers-Iwaniec and Sarnak's equidistribution theorem for Hecke
eigenvalues.
|
[{'version': 'v1', 'created': 'Tue, 6 Nov 2018 17:11:52 GMT'}
{'version': 'v2', 'created': 'Mon, 30 Sep 2019 12:52:35 GMT'}]
|
2019-10-01
|
[array(['Cherubini', 'Giacomo', ''], dtype=object)
array(['Perelli', 'Alberto', ''], dtype=object)]
|
6,345 |
1609.05950
|
Igor Shparlinski
|
Domingo G\'omez-P\'erez and Igor E. Shparlinski
|
Arithmetic Properties of Integers in Chains and Reflections of $g$-ary
Expansions
| null | null | null | null |
math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recently, there has been a sharp rise of interest in properties of digits
primes. Here we study yet another question of this kind. Namely, we fix an
integer base $g \ge 2$ and then for every infinite sequence $${\mathcal D} =
\{d_i\}_{i=0}^\infty \in \{0, \ldots, g-1\}^\infty $$ of $g$-ary digits we
consider the counting function $\varpi_{{\mathcal D},g}(N)$ of integers $n \le
N$ for which $\sum_{i=0}^{n-1} d_i g^i$ is prime.
We construct sequences ${\mathcal D}$ for which $\varpi_{{\mathcal D},g}(N)$
grows fast enough, and show that for some constant $\vartheta_g< g$ there are
at most $O(\vartheta_g^N)$ initial elements $(d_0, \ldots, d_{N-1})$ of
${\mathcal D}$ for which $\varpi_{{\mathcal D},g}(N)=N+O(1)$. We also discuss
joint arithmetic properties of integers and mirror reflections of their $g$-ary
expansions.
|
[{'version': 'v1', 'created': 'Mon, 19 Sep 2016 21:44:57 GMT'}]
|
2016-09-21
|
[array(['Gómez-Pérez', 'Domingo', ''], dtype=object)
array(['Shparlinski', 'Igor E.', ''], dtype=object)]
|
6,346 |
1508.05352
|
Hokky Situngkir
|
Hokky Situngkir and Yanu Endar Prasetyo
|
On Social and Economic Spheres: An Observation of the 'gantangan'
Indonesian tradition
|
6 pages, 2 figures. Paper presented in Seminar on Enhancing
Grassroots Innovation Competitiveness for Poverty Alleviation, Yogyakarta,
2012
| null | null | null |
cs.CY
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Indonesian traditional villagers have a tradition for the sake of their own
social and economic security named 'nyumbang'. There are wide variations of the
traditions across the archipelago, and we revisit an observation to one in
Subang, West Java, Indonesia. The paper discusses and employs the evolutionary
game theoretic insights to see the process of 'gantangan', of the intertwining
social cohesion and economic expectation of the participation within the
traditional activities. The current development of the gantangan tradition is
approached and generalized to propose a view between the economic and social
sphere surrounding modern people. While some explanations due to the current
development of gantangan is drawn, some aspects related to traditional views
complying the modern life with social and economic expectations is outlined.
|
[{'version': 'v1', 'created': 'Wed, 19 Aug 2015 16:14:18 GMT'}]
|
2015-08-24
|
[array(['Situngkir', 'Hokky', ''], dtype=object)
array(['Prasetyo', 'Yanu Endar', ''], dtype=object)]
|
6,347 |
2010.12813
|
Kevin Lin
|
Catherine Chen, Kevin Lin, Dan Klein
|
Constructing Taxonomies from Pretrained Language Models
|
NAACL 2021
| null |
10.18653/v1/2021.naacl-main.373
| null |
cs.CL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a method for constructing taxonomic trees (e.g., WordNet) using
pretrained language models. Our approach is composed of two modules, one that
predicts parenthood relations and another that reconciles those predictions
into trees. The parenthood prediction module produces likelihood scores for
each potential parent-child pair, creating a graph of parent-child relation
scores. The tree reconciliation module treats the task as a graph optimization
problem and outputs the maximum spanning tree of this graph. We train our model
on subtrees sampled from WordNet, and test on non-overlapping WordNet subtrees.
We show that incorporating web-retrieved glosses can further improve
performance. On the task of constructing subtrees of English WordNet, the model
achieves 66.7 ancestor F1, a 20.0% relative increase over the previous best
published result on this task. In addition, we convert the original English
dataset into nine other languages using Open Multilingual WordNet and extend
our results across these languages.
|
[{'version': 'v1', 'created': 'Sat, 24 Oct 2020 07:16:21 GMT'}
{'version': 'v2', 'created': 'Sun, 18 Apr 2021 02:37:29 GMT'}]
|
2021-11-03
|
[array(['Chen', 'Catherine', ''], dtype=object)
array(['Lin', 'Kevin', ''], dtype=object)
array(['Klein', 'Dan', ''], dtype=object)]
|
6,348 |
1504.06442
|
Maruthi Naliganahalli Hanumantharayappa
|
N.H. Maruthi, S.V. Raghurama Rao
|
An Entropy Stable Central Solver for Euler Equations
|
17 pages, 51 figures, Journal article
| null | null | null |
math.NA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
An exact discontinuity capturing central solver developed recently, named
MOVERS (Method of Optimal Viscosity for Enhanced Resolution of Shocks, J
Computat Phys 2009;228:770-798), is analyzed and improved further to make it
entropy stable. MOVERS, which is designed to capture steady shocks and contact
discontinuities exactly by enforcing the Rankine-Hugoniot jump condition
directly in the discretization process, is a low diffusive algorithm in a
simple central discretization framework, free of complicated Riemann solvers
and flux splittings. However, this algorithm needs an entropy fix to avoid
nonsmoothness in the expansion regions. The entropy conservation equation is
used as a guideline to introduce an optimal numerical diffusion in the smooth
regions and a limiter based switchover is introduced for numerical diffusion
based on jump conditions at the large gradients. The resulting new scheme is
entropy stable, accurate and captures steady discontinuities exactly while
avoiding an entropy fix.
|
[{'version': 'v1', 'created': 'Fri, 24 Apr 2015 09:37:40 GMT'}]
|
2015-04-27
|
[array(['Maruthi', 'N. H.', ''], dtype=object)
array(['Rao', 'S. V. Raghurama', ''], dtype=object)]
|
6,349 |
cond-mat/9910223
|
Rebecca Menes
|
Rebecca Menes, Niels Gronbech Jensen and Phil A. Pincus
|
Interactions Between Charged Rods Near Salty Surfaces
| null | null |
10.1007/s101890050035
| null |
cond-mat.soft
| null |
Using both theoretical modeling and computer simulations we study a model
system for DNA interactions in the vicinity of charged membranes. We focus on
the polarization of the mobile charges in the membranes due to the nearby
charged rods (DNA) and the resulting screening of their fields and inter-rod
interactions. We find, both within a Debye-Huckel model and in Brownian
dynamics simulations, that the confinement of the mobile charges to the surface
leads to a qualitative reduction in their ability to screen the charged rods to
the degree that the fields and resulting interactions are not finite-ranged as
in systems including a bulk salt concentration, but rather decay algebraically
and the screening effect is more like an effective increase in the multipole
moment of the charged rod.
|
[{'version': 'v1', 'created': 'Fri, 15 Oct 1999 01:22:45 GMT'}
{'version': 'v2', 'created': 'Wed, 17 Nov 1999 19:30:43 GMT'}]
|
2009-10-31
|
[array(['Menes', 'Rebecca', ''], dtype=object)
array(['Jensen', 'Niels Gronbech', ''], dtype=object)
array(['Pincus', 'Phil A.', ''], dtype=object)]
|
6,350 |
0904.1041
|
Ki Seok Kim
|
K.-S. Kim and C. Pepin
|
Quantum Boltzman equation study for the Kondo breakdown quantum critical
point
| null |
J. Phys.: Condens. Matter 22 (2010) 025601
|
10.1088/0953-8984/22/2/025601
| null |
cond-mat.str-el
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We develop the quantum Boltzman equation approach for the Kondo breakdown
quantum critical point, involved with two bands for conduction electrons and
localized fermions. Particularly, the role of vertex corrections in transport
is addressed, crucial for non-Fermi liquid transport of temperature linear
dependence. Only one band of spinons may be considered for scattering with
gauge fluctuations, and their associated vertex corrections are introduced in
the usual way, where divergence of self-energy corrections is cancelled by that
of vertex corrections, giving rise to the physically meaningful result in the
gauge invariant expression for conductivity. On the other hand, two bands
should be taken into account for scattering with hybridization excitations,
giving rise to coupled quantum Boltzman equations. We find that vertex
corrections associated with hybridization fluctuations turn out to be
irrelevant due to heavy mass of spinons in the so called decoupling limit,
consistent with the diagrammatic approach showing the non-Fermi liquid
transport.
|
[{'version': 'v1', 'created': 'Tue, 7 Apr 2009 01:23:09 GMT'}
{'version': 'v2', 'created': 'Sun, 27 Sep 2009 04:59:28 GMT'}]
|
2015-05-13
|
[array(['Kim', 'K. -S.', ''], dtype=object)
array(['Pepin', 'C.', ''], dtype=object)]
|
6,351 |
2107.07557
|
Saravanabalagi Ramachandran
|
Saravanabalagi Ramachandran and John McDonald
|
OdoViz: A 3D Odometry Visualization and Processing Tool
|
Accepted, ITSC 2021
| null | null | null |
cs.CV cs.RO
|
http://creativecommons.org/licenses/by/4.0/
|
OdoViz is a reactive web-based tool for 3D visualization and processing of
autonomous vehicle datasets designed to support common tasks in visual place
recognition research. The system includes functionality for loading,
inspecting, visualizing, and processing GPS/INS poses, point clouds and camera
images. It supports a number of commonly used driving datasets and can be
adapted to load custom datasets with minimal effort. OdoViz's design consists
of a slim server to serve the datasets coupled with a rich client frontend.
This design supports multiple deployment configurations including single user
stand-alone installations, research group installations serving datasets
internally across a lab, or publicly accessible web-frontends for providing
online interfaces for exploring and interacting with datasets. The tool allows
viewing complete vehicle trajectories traversed at multiple different time
periods simultaneously, facilitating tasks such as sub-sampling, comparing and
finding pose correspondences both across and within sequences. This
significantly reduces the effort required in creating subsets of data from
existing datasets for machine learning tasks. Further to the above, the system
also supports adding custom extensions and plugins to extend the capabilities
of the software for other potential data management, visualization and
processing tasks. The platform has been open-sourced to promote its use and
encourage further contributions from the research community.
|
[{'version': 'v1', 'created': 'Thu, 15 Jul 2021 18:37:19 GMT'}]
|
2021-07-19
|
[array(['Ramachandran', 'Saravanabalagi', ''], dtype=object)
array(['McDonald', 'John', ''], dtype=object)]
|
6,352 |
1909.08319
|
Konstantin Loginov
|
Konstantin Loginov
|
On semistable degenerations of Fano varieties
|
13 pages
| null | null | null |
math.AG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Consider a family of Fano varieties $\pi: X \longrightarrow B\ni o$ over a
curve germ with a smooth total space $X$. Assume that the generic fiber is
smooth and the special fiber $F=\pi^{-1}(o)$ has simple normal crossings. Then
$F$ is called a semistable degeneration of Fano varieties. We show that the
dual complex of $F$ is a simplex of dimension $\leq \mathrm{dim}\ F$. Simplices
of any admissible dimension can be realized for any dimension of the fiber.
Using this result and the Minimal Model Program in dimension $3$ we reproduce
the classification of the semistable degenerations of del Pezzo surfaces
obtained by Fujita. We also show that the maximal degeneration is unique and
has trivial monodromy in dimension $\leq3$.
|
[{'version': 'v1', 'created': 'Wed, 18 Sep 2019 09:52:36 GMT'}
{'version': 'v2', 'created': 'Fri, 20 Sep 2019 05:24:55 GMT'}]
|
2019-09-23
|
[array(['Loginov', 'Konstantin', ''], dtype=object)]
|
6,353 |
astro-ph/0010050
|
Pasquale Blasi
|
Pasquale Blasi
|
Dark matter distribution in the universe and ultra-high energy cosmic
rays
|
15 pages, 7 figures. Invited Talk at the "International Workshop on
observing UHECRs from space and earth", August 9-12, 2000, Metepec, Puebla
(Mexico)
|
AIP Conf.Proc.566:195-210,2001
|
10.1063/1.1378632
|
Fermilab-Conf-00/247-A
|
astro-ph
| null |
Two of the greatest mysteries of modern physics are the origin of the dark
matter in the universe and the nature of the highest energy particles in the
cosmic ray spectrum. We discuss here possible direct and indirect connections
between these two problems, with particular attention to two cases: in the
first we study the local clustering of possible sources of ultra-high energy
cosmic rays (UHECRs) driven by the local dark matter overdensity. In the second
case we study the possibility that UHECRs are directly generated by the decay
of weakly unstable super heavy dark matter.
|
[{'version': 'v1', 'created': 'Mon, 2 Oct 2000 22:19:10 GMT'}]
|
2014-10-13
|
[array(['Blasi', 'Pasquale', ''], dtype=object)]
|
6,354 |
1911.01629
|
Mahaveer Jain
|
Mahaveer Jain, Kjell Schubert, Jay Mahadeokar, Ching-Feng Yeh,
Kaustubh Kalgaonkar, Anuroop Sriram, Christian Fuegen, Michael L. Seltzer
|
RNN-T For Latency Controlled ASR With Improved Beam Search
| null | null | null | null |
cs.CL cs.LG eess.AS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Neural transducer-based systems such as RNN Transducers (RNN-T) for automatic
speech recognition (ASR) blend the individual components of a traditional
hybrid ASR systems (acoustic model, language model, punctuation model, inverse
text normalization) into one single model. This greatly simplifies training and
inference and hence makes RNN-T a desirable choice for ASR systems. In this
work, we investigate use of RNN-T in applications that require a tune-able
latency budget during inference time. We also improved the decoding speed of
the originally proposed RNN-T beam search algorithm. We evaluated our proposed
system on English videos ASR dataset and show that neural RNN-T models can
achieve comparable WER and better computational efficiency compared to a well
tuned hybrid ASR baseline.
|
[{'version': 'v1', 'created': 'Tue, 5 Nov 2019 05:46:52 GMT'}
{'version': 'v2', 'created': 'Thu, 16 Jan 2020 15:45:47 GMT'}]
|
2020-01-17
|
[array(['Jain', 'Mahaveer', ''], dtype=object)
array(['Schubert', 'Kjell', ''], dtype=object)
array(['Mahadeokar', 'Jay', ''], dtype=object)
array(['Yeh', 'Ching-Feng', ''], dtype=object)
array(['Kalgaonkar', 'Kaustubh', ''], dtype=object)
array(['Sriram', 'Anuroop', ''], dtype=object)
array(['Fuegen', 'Christian', ''], dtype=object)
array(['Seltzer', 'Michael L.', ''], dtype=object)]
|
6,355 |
2108.01016
|
Johannes Huebschmann
|
Johannes Huebschmann
|
Finite-dimensional construction of self-duality and related moduli
spaces over a closed Riemann surface as stratified holomorphic symplectic
spaces
|
26 pages
| null | null | null |
math.DG math.AG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In terms of appropriate extended moduli spaces, we develop a
finite-dimensional construction of the self-duality and related moduli spaces
over a closed Riemann surface as stratified holomorphic symplectic spaces by
singular finite-dimensional holomorphic symplectic reduction.
|
[{'version': 'v1', 'created': 'Mon, 2 Aug 2021 16:26:15 GMT'}]
|
2021-08-03
|
[array(['Huebschmann', 'Johannes', ''], dtype=object)]
|
6,356 |
2205.00248
|
Kristin Kirchner
|
Kristin Kirchner, Joshua Willems
|
Regularity theory for a new class of fractional parabolic stochastic
evolution equations
|
40 pages
| null | null | null |
math.PR math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A new class of fractional-order stochastic evolution equations of the form
$(\partial_t + A)^\gamma X(t) = \dot{W}^Q(t)$, $t\in[0,T]$, $\gamma \in
(0,\infty)$, is introduced, where $-A$ generates a $C_0$-semigroup on a
separable Hilbert space $H$ and the spatiotemporal driving noise $\dot{W}^Q$ is
an $H$-valued cylindrical $Q$-Wiener process. Mild and weak solutions are
defined; these concepts are shown to be equivalent and to lead to well-posed
problems. Temporal and spatial regularity of the solution process $X$ are
investigated, the former being measured by mean-square or pathwise smoothness
and the latter by using domains of fractional powers of $A$. In addition, the
covariance of $X$ and its long-time behavior are analyzed. These abstract
results are applied to the cases when $A := L^\beta$ and
$Q:=\widetilde{L}^{-\alpha}$ are fractional powers of symmetric, strongly
elliptic second-order differential operators defined on (i) bounded Euclidean
domains or (ii) smooth, compact surfaces. In these cases, the Gaussian solution
processes can be seen as generalizations of merely spatial (Whittle-)Mat\'ern
fields to space-time.
|
[{'version': 'v1', 'created': 'Sat, 30 Apr 2022 11:50:52 GMT'}]
|
2022-05-03
|
[array(['Kirchner', 'Kristin', ''], dtype=object)
array(['Willems', 'Joshua', ''], dtype=object)]
|
6,357 |
1403.7229
|
Guillermo Federico Quinteiro
|
G. F. Quinteiro and T. Kuhn
|
Light-hole transitions in quantum dots: realizing full control by highly
focused optical-vortex beams
| null |
Phys. Rev. B 90, 115401 (2014)
|
10.1103/PhysRevB.90.115401
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
An optical-vortex is an inhomogeneous light beam having a phase singularity
at its axis, where the intensity of the electric and/or magnetic field may
vanish. Already well studied are the paraxial beams, which are known to carry
well defined values of spin (polarization $\sigma$) and orbital angular
momenta; the orbital angular momentum per photon is given by the topological
charge $\ell$ times the Planck constant. Here we study the
light-hole--to--conduction band transitions in a semiconductor quantum dot
induced by a highly-focused beam originating from a $\ell=1$ paraxial optical
vortex. We find that at normal incidence the pulse will produce two distinct
types of electron--hole pairs, depending on the relative signs of $\sigma$ and
$\ell$. When sign($\sigma$)$=$sign($\ell$), the pulse will create
electron--hole pairs with band+spin and envelope angular momenta both equal to
one. In contrast, for sign($\sigma$)$\neq$sign($\ell$), the electron-hole pairs
will have neither band+spin nor envelope angular momenta. A tightly-focused
optical-vortex beam thus makes possible the creation of pairs that cannot be
produced with plane waves at normal incidence. With the addition of
co-propagating plane waves or switching techniques to change the charge $\ell$
both the band+spin and the envelope angular momenta of the pair wave-function
can be precisely controlled. We discuss possible applications in the field of
spintronics that open up.
|
[{'version': 'v1', 'created': 'Thu, 27 Mar 2014 21:58:55 GMT'}]
|
2015-06-19
|
[array(['Quinteiro', 'G. F.', ''], dtype=object)
array(['Kuhn', 'T.', ''], dtype=object)]
|
6,358 |
2203.03722
|
Lu Dong
|
Lu Dong, Zhenhua Ling, Qiang Ling and Zefeng Lai
|
Cognitive Diagnosis with Explicit Student Vector Estimation and
Unsupervised Question Matrix Learning
|
9 pages, 6 figures
| null | null | null |
cs.CY cs.LG cs.SI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Cognitive diagnosis is an essential task in many educational applications.
Many solutions have been designed in the literature. The deterministic input,
noisy "and" gate (DINA) model is a classical cognitive diagnosis model and can
provide interpretable cognitive parameters, e.g., student vectors. However, the
assumption of the probabilistic part of DINA is too strong, because it assumes
that the slip and guess rates of questions are student-independent. Besides,
the question matrix (i.e., Q-matrix) recording the skill distribution of the
questions in the cognitive diagnosis domain often requires precise labels given
by domain experts. Thus, we propose an explicit student vector estimation
(ESVE) method to estimate the student vectors of DINA with a local
self-consistent test, which does not rely on any assumptions for the
probabilistic part of DINA. Then, based on the estimated student vectors, the
probabilistic part of DINA can be modified to a student dependent model that
the slip and guess rates are related to student vectors. Furthermore, we
propose an unsupervised method called heuristic bidirectional calibration
algorithm (HBCA) to label the Q-matrix automatically, which connects the
question difficulty relation and the answer results for initialization and uses
the fault tolerance of ESVE-DINA for calibration. The experimental results on
two real-world datasets show that ESVE-DINA outperforms the DINA model on
accuracy and that the Q-matrix labeled automatically by HBCA can achieve
performance comparable to that obtained with the manually labeled Q-matrix when
using the same model structure.
|
[{'version': 'v1', 'created': 'Tue, 1 Mar 2022 03:53:19 GMT'}]
|
2022-03-09
|
[array(['Dong', 'Lu', ''], dtype=object)
array(['Ling', 'Zhenhua', ''], dtype=object)
array(['Ling', 'Qiang', ''], dtype=object)
array(['Lai', 'Zefeng', ''], dtype=object)]
|
6,359 |
2101.10911
|
Rahul Gupta Mr.
|
Rahul Gupta, Sajid Husain, Ankit Kumar, Rimantas Brucas, Anders
Rydberg, and Peter Svedlindh
|
Co$_2$FeAl full Heusler compound based spintronic terahertz emitter
|
7 pages, 4 figures
|
Adv. Optical Mater. 2021, 2001987
|
10.1002/adom.202001987
| null |
cond-mat.mtrl-sci cond-mat.mes-hall cond-mat.other physics.optics
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
To achieve a large terahertz (THz) amplitude from a spintronic THz emitter
(STE), materials with 100\% spin polarisation such as Co-based Heusler
compounds as the ferromagnetic layer are required. However, these compounds are
known to loose their half-metallicity in the ultrathin film regime, as it is
difficult to achieve L2$_1$ ordering, which has become a bottleneck for the
film growth. Here, the successful deposition using room temperature DC
sputtering of the L2$_1$ and B2 ordered phases of the Co$_2$FeAl full Heusler
compound is reported. Co$_2$FeAl is used as ferromagnetic layer together with
highly orientated Pt as non-ferromagnetic layer in the Co$_2$FeAl/Pt STE, where
an MgO(10 nm) seed layer plays an important role to achieve the L2$_1$ and B2
ordering of Co$_2$FeAl. The generation of THz radiation in the CFA/Pt STE is
presented, which has a bandwidth in the range of 0.1-4 THz. The THz electric
field amplitude is optimized with respect to thickness, orientation, and growth
parameters using a thickness dependent model considering the optically induced
spin current, superdiffusive spin current, inverse spin Hall effect and the
attenuation of THz radiation in the layers. This study, based on the full
Heusler Co$_2$FeAl compound opens up a plethora possibilities in STE research
involving full Heusler compounds.
|
[{'version': 'v1', 'created': 'Tue, 26 Jan 2021 16:24:59 GMT'}]
|
2021-03-09
|
[array(['Gupta', 'Rahul', ''], dtype=object)
array(['Husain', 'Sajid', ''], dtype=object)
array(['Kumar', 'Ankit', ''], dtype=object)
array(['Brucas', 'Rimantas', ''], dtype=object)
array(['Rydberg', 'Anders', ''], dtype=object)
array(['Svedlindh', 'Peter', ''], dtype=object)]
|
6,360 |
1901.08331
|
Muhammad Junaid Farooq
|
Muhammad Junaid Farooq and Quanyan Zhu
|
Dynamic Spatio-Temporal Resource Provisioning for On-Demand Urban
Services in Smart Cities
| null | null | null | null |
cs.SY
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Efficient allocation of finite resources is a crucial problem in a wide
variety of on-demand smart city applications. Service requests often appear
randomly over time and space with varying intensity. Resource provisioning
decisions need to be made strategically in real-time, particularly when there
is incomplete information about the time, location, and intensity of future
requests. In this paper, we develop a systematic approach to the dynamic
resource provisioning problem at a centralized source node to spatio-temporal
service requests. The spatial statistics are combined with dynamically optimal
decision-making to derive recursive threshold based allocation policies. The
developed results are easy to compute and implement in real-time applications.
For illustrative purposes, we present examples of commonly used utility
functions, based on the power law decay and exponential decay coupled with
exponentially, and uniformly distributed intensity of stochastic arrivals to
demonstrate the efficacy of the developed framework. Semi-closed form
expressions along with recursive computational procedure has been provided.
Simulation results demonstrate the effectiveness of the proposed policies in
comparison with less strategic methodologies.
|
[{'version': 'v1', 'created': 'Thu, 24 Jan 2019 10:28:03 GMT'}]
|
2019-01-25
|
[array(['Farooq', 'Muhammad Junaid', ''], dtype=object)
array(['Zhu', 'Quanyan', ''], dtype=object)]
|
6,361 |
2104.06279
|
Yihao Liu
|
Yihao Liu, Jingwen He, Xiangyu Chen, Zhengwen Zhang, Hengyuan Zhao,
Chao Dong, Yu Qiao
|
Very Lightweight Photo Retouching Network with Conditional Sequential
Modulation
|
Accepted by TMM. arXiv admin note: substantial text overlap with
arXiv:2009.10390
| null |
10.1109/TMM.2022.3179904
| null |
cs.CV cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Photo retouching aims at improving the aesthetic visual quality of images
that suffer from photographic defects, especially for poor contrast, over/under
exposure, and inharmonious saturation. In practice, photo retouching can be
accomplished by a series of image processing operations. As most commonly-used
retouching operations are pixel-independent, i.e., the manipulation on one
pixel is uncorrelated with its neighboring pixels, we can take advantage of
this property and design a specialized algorithm for efficient global photo
retouching. We analyze these global operations and find that they can be
mathematically formulated by a Multi-Layer Perceptron (MLP). Based on this
observation, we propose an extremely lightweight framework -- Conditional
Sequential Retouching Network (CSRNet). Benefiting from the utilization of
$1\times1$ convolution, CSRNet only contains less than 37K trainable
parameters, which are orders of magnitude smaller than existing learning-based
methods. Experiments show that our method achieves state-of-the-art performance
on the benchmark MIT-Adobe FiveK dataset quantitively and qualitatively. In
addition to achieve global photo retouching, the proposed framework can be
easily extended to learn local enhancement effects. The extended model, namely
CSRNet-L, also achieves competitive results in various local enhancement tasks.
Codes are available at https://github.com/lyh-18/CSRNet.
|
[{'version': 'v1', 'created': 'Tue, 13 Apr 2021 15:11:02 GMT'}
{'version': 'v2', 'created': 'Sun, 5 Jun 2022 17:04:16 GMT'}]
|
2022-06-07
|
[array(['Liu', 'Yihao', ''], dtype=object)
array(['He', 'Jingwen', ''], dtype=object)
array(['Chen', 'Xiangyu', ''], dtype=object)
array(['Zhang', 'Zhengwen', ''], dtype=object)
array(['Zhao', 'Hengyuan', ''], dtype=object)
array(['Dong', 'Chao', ''], dtype=object)
array(['Qiao', 'Yu', ''], dtype=object)]
|
6,362 |
1511.06696
|
Seyit Hocuk
|
S. Hocuk, S. Cazaux, M. Spaans and P. Caselli
|
How chemistry influences cloud structure, star formation, and the IMF
|
Accepted for publication in MNRAS. 26 pages, 10 figures, and 10
tables. Added some more references
| null |
10.1093/mnras/stv2817
| null |
astro-ph.GA astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the earliest phases of star-forming clouds, stable molecular species, such
as CO, are important coolants in the gas phase. Depletion of these molecules on
dust surfaces affects the thermal balance of molecular clouds and with that
their whole evolution. For the first time, we study the effect of grain surface
chemistry (GSC) on star formation and its impact on the initial mass function
(IMF). We follow a contracting translucent cloud in which we treat the
gas-grain chemical interplay in detail, including the process of freeze-out. We
perform 3d hydrodynamical simulations under three different conditions, a pure
gas-phase model, a freeze-out model, and a complete chemistry model. The models
display different thermal evolution during cloud collapse. The equation of
state (EOS) of the gas becomes softer with CO freeze-out and the results show
that at the onset of star formation, the cloud retains its evolution history
such that the number of formed stars differ (by 7%) between the three models.
While the stellar mass distribution results in a different IMF when we consider
pure freeze-out, with the complete treatment of the GSC, the divergence from a
pure gas-phase model is minimal. We find that the impact of freeze-out is
balanced by the non-thermal processes; chemical and photodesorption. We also
find an average filament width of 0.12 pc ($\pm$0.03 pc), and speculate that
this may be a result from the changes in the EOS caused by the gas-dust thermal
coupling. We conclude that GSC plays a big role in the chemical composition of
molecular clouds and that surface processes are needed to accurately interpret
observations, however, that GSC does not have a significant impact as far as
star formation and the IMF is concerned.
|
[{'version': 'v1', 'created': 'Fri, 20 Nov 2015 17:16:08 GMT'}
{'version': 'v2', 'created': 'Thu, 17 Dec 2015 11:26:56 GMT'}]
|
2016-01-27
|
[array(['Hocuk', 'S.', ''], dtype=object)
array(['Cazaux', 'S.', ''], dtype=object)
array(['Spaans', 'M.', ''], dtype=object)
array(['Caselli', 'P.', ''], dtype=object)]
|
6,363 |
0807.4822
|
Hallouin Emmanuel
|
Jean-Marc Couveignes, Emmanuel Hallouin
|
Sur le corps des modules de certaines vari\'et\'es
| null | null | null | null |
math.NT math.AG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
To every covering of curves, we associate several varieties having the same
field of moduli and same fields of definition. We deduce examples of curves
having Q (the field of rationals) as field of moduli, that admit models over
any completion of Q but no model over Q.
|
[{'version': 'v1', 'created': 'Wed, 30 Jul 2008 09:46:13 GMT'}]
|
2008-07-31
|
[array(['Couveignes', 'Jean-Marc', ''], dtype=object)
array(['Hallouin', 'Emmanuel', ''], dtype=object)]
|
6,364 |
1106.4840
|
Bruce Elmegreen
|
Debra Meloy Elmegreen (Vassar College) and the S4G Team
|
Grand Design and Flocculent Spirals in the Spitzer Survey of Stellar
Structure in Galaxies (S4G)
|
31 pages, 14 figures, ApJ in press
| null |
10.1088/0004-637X/737/1/32
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Spiral arm properties of 46 galaxies in the Spitzer Survey of Stellar
Structure in Galaxies (S4G) were measured at 3.6mu, where extinction is small
and the old stars dominate. The sample includes flocculent, multiple arm, and
grand design types with a wide range of Hubble and bar types. We find that most
optically flocculent galaxies are also flocculent in the mid-IR because of star
formation uncorrelated with stellar density waves, whereas multiple arm and
grand design galaxies have underlying stellar waves. Arm-interarm contrasts
increase from flocculent to multiple arm to grand design galaxies and with
later Hubble types. Structure can be traced further out in the disk than in
previous surveys. Some spirals peak at mid-radius while others continuously
rise or fall, depending on Hubble and bar type. We find evidence for regular
and symmetric modulations of the arm strength in NGC 4321. Bars tend to be
long, high amplitude, and flat-profiled in early type spirals, with arm
contrasts that decrease with radius beyond the end of the bar, and they tend to
be short, low amplitude, and exponential-profiled in late Hubble types, with
arm contrasts that are constant or increase with radius. Longer bars tend to
have larger amplitudes and stronger arms.
|
[{'version': 'v1', 'created': 'Thu, 23 Jun 2011 21:45:49 GMT'}
{'version': 'v2', 'created': 'Mon, 27 Jun 2011 14:31:23 GMT'}]
|
2015-05-28
|
[array(['Elmegreen', 'Debra Meloy', '', 'Vassar College'], dtype=object)
array(['Team', 'the S4G', ''], dtype=object)]
|
6,365 |
2103.11993
|
Alice Mizrahi
|
Nathan Leroux, Alice Mizrahi, Danijela Markovic, Dedalo
Sanz-Hernandez, Juan Trastoy, Paolo Bortolotti, Leandro Martins, Alex
Jenkins, Ricardo Ferreira, and Julie Grollier
|
Hardware realization of the multiply and accumulate operation on
radio-frequency signals with magnetic tunnel junctions
|
10 pages, 4 figures
| null | null | null |
cond-mat.dis-nn cond-mat.mes-hall
|
http://creativecommons.org/licenses/by/4.0/
|
Artificial neural networks are a valuable tool for radio-frequency (RF)
signal classification in many applications, but digitization of analog signals
and the use of general purpose hardware non-optimized for training make the
process slow and energetically costly. Recent theoretical work has proposed to
use nano-devices called magnetic tunnel junctions, which exhibit intrinsic RF
dynamics, to implement in hardware the Multiply and Accumulate (MAC) operation,
a key building block of neural networks, directly using analogue RF signals. In
this article, we experimentally demonstrate that a magnetic tunnel junction can
perform multiplication of RF powers, with tunable positive and negative
synaptic weights. Using two magnetic tunnel junctions connected in series we
demonstrate the MAC operation and use it for classification of RF signals.
These results open the path to embedded systems capable of analyzing RF signals
with neural networks directly after the antenna, at low power cost and high
speed.
|
[{'version': 'v1', 'created': 'Mon, 22 Mar 2021 16:37:19 GMT'}
{'version': 'v2', 'created': 'Wed, 14 Apr 2021 15:30:32 GMT'}]
|
2021-04-15
|
[array(['Leroux', 'Nathan', ''], dtype=object)
array(['Mizrahi', 'Alice', ''], dtype=object)
array(['Markovic', 'Danijela', ''], dtype=object)
array(['Sanz-Hernandez', 'Dedalo', ''], dtype=object)
array(['Trastoy', 'Juan', ''], dtype=object)
array(['Bortolotti', 'Paolo', ''], dtype=object)
array(['Martins', 'Leandro', ''], dtype=object)
array(['Jenkins', 'Alex', ''], dtype=object)
array(['Ferreira', 'Ricardo', ''], dtype=object)
array(['Grollier', 'Julie', ''], dtype=object)]
|
6,366 |
2108.10882
|
Jeff Ledford
|
Jeff Ledford
|
A note concerning the invertibility of certain alternant matrices
| null | null | null | null |
math.CA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This brief note concerns the invertibility of certain alternant matrices. In
particular those that consisting of polynomials and products of polynomials and
logarithms are shown to be invertible under appropriate conditions on the
degrees of the polynomials.
|
[{'version': 'v1', 'created': 'Tue, 24 Aug 2021 14:02:13 GMT'}]
|
2021-08-26
|
[array(['Ledford', 'Jeff', ''], dtype=object)]
|
6,367 |
2010.14249
|
Suryaprakash Rao Dr
|
Suryaprakash Nagoji Rao
|
Eulers Graph World - Purity, Regularity and Evenness -Law of Nature? -
Constructions and Examples
|
16 Pages, 15 Figs
| null | null | null |
math.CO
|
http://creativecommons.org/publicdomain/zero/1.0/
|
We propose a Law of Nature? Viz., Pure Regularity Occurs at Na\"ive Levels
and Regularity has Affinity with Evenness. In a series of three papers, it was
established that regular Euler graphs with only one type of (pure) cycles are
nonexistent; Regular Euler graphs with only two types of cycles are possible in
one of the six cases, viz., regular bipartite Euler graphs of degree >2;
Evenness plays role in unveiling regularity; Lastly, K5 is a regular Euler
graph with three types of cycles (0,1,3); This is the only known graph with the
property; It is conjectured that regular Euler graphs of order >5 with only
three cycle types are nonexistent and this is proved true in part cases in each
of the four cases. Some constructions and examples are given for the Euler
graphs under (mod 4) satisfying intersection (combined cycle) rules. These
infinite classes of Euler graphs serve as candidates for gracefulness. Infinite
families of graceful graphs are presented in Case-0.
|
[{'version': 'v1', 'created': 'Mon, 26 Oct 2020 06:53:13 GMT'}]
|
2020-10-28
|
[array(['Rao', 'Suryaprakash Nagoji', ''], dtype=object)]
|
6,368 |
1811.04307
|
Marcelo Epstein
|
Marcelo Epstein
|
Vlasov's beams and multivector Grassmann Statics
| null | null | null | null |
physics.class-ph math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A novel formulation of statics in terms of the exterior algebra of an affine
space is shown to be the underlying mathematical structure of Vlasov's
thin-walled beam theory in structural mechanics.
|
[{'version': 'v1', 'created': 'Sat, 10 Nov 2018 20:23:48 GMT'}]
|
2018-11-13
|
[array(['Epstein', 'Marcelo', ''], dtype=object)]
|
6,369 |
1109.6833
|
Atlas Publications
|
ATLAS Collaboration
|
Measurement of the inclusive and dijet cross-sections of b-jets in pp
collisions at sqrt(s) = 7 TeV with the ATLAS detector
|
10 pages plus author list (21 pages total), 8 figures, 1 table, final
version published in European Physical Journal C
|
Eur.Phys.J.C 71 (2011) 1846
|
10.1140/epjc/s10052-011-1846-4
|
CERN-PH-EP-2011-146
|
hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The inclusive and dijet production cross-sections have been measured for jets
containing b-hadrons (b-jets) in proton-proton collisions at a centre-of-mass
energy of sqrt(s) = 7 TeV, using the ATLAS detector at the LHC. The
measurements use data corresponding to an integrated luminosity of 34 pb^-1.
The b-jets are identified using either a lifetime-based method, where secondary
decay vertices of b-hadrons in jets are reconstructed using information from
the tracking detectors, or a muon-based method where the presence of a muon is
used to identify semileptonic decays of b-hadrons inside jets. The inclusive
b-jet cross-section is measured as a function of transverse momentum in the
range 20 < pT < 400 GeV and rapidity in the range |y| < 2.1. The bbbar-dijet
cross-section is measured as a function of the dijet invariant mass in the
range 110 < m_jj < 760 GeV, the azimuthal angle difference between the two jets
and the angular variable chi in two dijet mass regions. The results are
compared with next-to-leading-order QCD predictions. Good agreement is observed
between the measured cross-sections and the predictions obtained using POWHEG +
Pythia. MC@NLO + Herwig shows good agreement with the measured bbbar-dijet
cross-section. However, it does not reproduce the measured inclusive
cross-section well, particularly for central b-jets with large transverse
momenta.
|
[{'version': 'v1', 'created': 'Fri, 30 Sep 2011 14:28:35 GMT'}
{'version': 'v2', 'created': 'Wed, 28 Dec 2011 18:54:35 GMT'}]
|
2012-08-27
|
[array(['ATLAS Collaboration', '', ''], dtype=object)]
|
6,370 |
quant-ph/0608005
|
Holger F. Hofmann
|
Holger F. Hofmann, Ryo Okamoto, Shigeki Takeuchi
|
Analysis of an experimental quantum logic gate by complementary
classical operations
|
14 pages, 1 figure, 3 tables, Brief Review for Modern Physics Letters
A, includes a more detailed analysis of the experimental data in Phys. Rev.
Lett. 95, 210506 (2005) (quant-ph/0506263). v2 has minor corrections in
layout
|
Mod. Phys. Lett. A 21, 1837 (2006)
|
10.1142/S0217732306021281
| null |
quant-ph
| null |
Quantum logic gates can perform calculations much more efficiently than their
classical counterparts. However, the level of control needed to obtain a
reliable quantum operation is correspondingly higher. In order to evaluate the
performance of experimental quantum gates, it is therefore necessary to
identify the essential features that indicate quantum coherent operation. In
this paper, we show that an efficient characterization of an experimental
device can be obtained by investigating the classical logic operations on a
pair of complementary basis sets. It is then possible to obtain reliable
predictions about the quantum coherent operations of the gate such as
entanglement generation and Bell state discrimination even without performing
these operations directly.
|
[{'version': 'v1', 'created': 'Tue, 1 Aug 2006 01:40:39 GMT'}
{'version': 'v2', 'created': 'Tue, 31 Oct 2006 23:45:05 GMT'}]
|
2009-11-13
|
[array(['Hofmann', 'Holger F.', ''], dtype=object)
array(['Okamoto', 'Ryo', ''], dtype=object)
array(['Takeuchi', 'Shigeki', ''], dtype=object)]
|
6,371 |
1806.08793
|
Liang Dai
|
Liang Dai, Tejaswi Venumadhav, Barak Zackay
|
Parameter Estimation for GW170817 using Relative Binning
|
8 pages, 1 table, 5 figures. In version 2 we added a comparison
between two difference choices for the high frequency cutoff (1000 Hz versus
1500 Hz). The relative binning technique is presented in a companion paper
arXiv:1806.08792. Reference python code and posterior samples are available
to download at: https://bitbucket.org/dailiang8/gwbinning/
| null | null | null |
gr-qc astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Relative binning is a new method for fast and accurate evaluation of the
likelihood of gravitational wave strain data. This technique can be used to
produce reliable posterior distributions for compact object mergers with very
moderate computational resources. We use a fast likelihood evaluation code
based on this technique to estimate the parameters of the double neutron-star
merger event GW170817 using publicly available LIGO data. We obtain
statistically similar posteriors using either Markov-chain Monte-Carlo or
nested sampling. The results do not favor non-zero aligned spins at a
statistically significant level. There is no significant sign of non-zero tidal
deformability (as quantified by the Bayesian evidence), whether or not
high-spin or low-spin priors are adopted. Our posterior samples are publicly
available, and we also provide a tutorial Python code to implement fast
likelihood evaluation using the relative binning method.
|
[{'version': 'v1', 'created': 'Fri, 22 Jun 2018 18:00:00 GMT'}
{'version': 'v2', 'created': 'Thu, 2 Aug 2018 14:11:06 GMT'}]
|
2018-08-03
|
[array(['Dai', 'Liang', ''], dtype=object)
array(['Venumadhav', 'Tejaswi', ''], dtype=object)
array(['Zackay', 'Barak', ''], dtype=object)]
|
6,372 |
1812.09551
|
Chao Zhang
|
Chao Zhang, Fangbo Tao, Xiusi Chen, Jiaming Shen, Meng Jiang, Brian
Sadler, Michelle Vanni, Jiawei Han
|
TaxoGen: Unsupervised Topic Taxonomy Construction by Adaptive Term
Embedding and Clustering
| null | null | null | null |
cs.DB
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Taxonomy construction is not only a fundamental task for semantic analysis of
text corpora, but also an important step for applications such as information
filtering, recommendation, and Web search. Existing pattern-based methods
extract hypernym-hyponym term pairs and then organize these pairs into a
taxonomy. However, by considering each term as an independent concept node,
they overlook the topical proximity and the semantic correlations among terms.
In this paper, we propose a method for constructing topic taxonomies, wherein
every node represents a conceptual topic and is defined as a cluster of
semantically coherent concept terms. Our method, TaxoGen, uses term embeddings
and hierarchical clustering to construct a topic taxonomy in a recursive
fashion. To ensure the quality of the recursive process, it consists of: (1) an
adaptive spherical clustering module for allocating terms to proper levels when
splitting a coarse topic into fine-grained ones; (2) a local embedding module
for learning term embeddings that maintain strong discriminative power at
different levels of the taxonomy. Our experiments on two real datasets
demonstrate the effectiveness of TaxoGen compared with baseline methods.
|
[{'version': 'v1', 'created': 'Sat, 22 Dec 2018 16:11:17 GMT'}]
|
2018-12-27
|
[array(['Zhang', 'Chao', ''], dtype=object)
array(['Tao', 'Fangbo', ''], dtype=object)
array(['Chen', 'Xiusi', ''], dtype=object)
array(['Shen', 'Jiaming', ''], dtype=object)
array(['Jiang', 'Meng', ''], dtype=object)
array(['Sadler', 'Brian', ''], dtype=object)
array(['Vanni', 'Michelle', ''], dtype=object)
array(['Han', 'Jiawei', ''], dtype=object)]
|
6,373 |
2012.10395
|
Valero Laparra
|
David Malmgren-Hansen and Allan Aasbjerg Nielsen and Valero Laparra
and Gustau Camps- Valls
|
Transfer Learning with Convolutional Networks for Atmospheric Parameter
Retrieval
| null |
2018 IEEE International Geoscience and Remote Sensing Symposium
|
10.1109/IGARSS.2018.8518097
| null |
physics.ao-ph cs.LG
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
The Infrared Atmospheric Sounding Interferometer (IASI) on board the MetOp
satellite series provides important measurements for Numerical Weather
Prediction (NWP). Retrieving accurate atmospheric parameters from the raw data
provided by IASI is a large challenge, but necessary in order to use the data
in NWP models. Statistical models performance is compromised because of the
extremely high spectral dimensionality and the high number of variables to be
predicted simultaneously across the atmospheric column. All this poses a
challenge for selecting and studying optimal models and processing schemes.
Earlier work has shown non-linear models such as kernel methods and neural
networks perform well on this task, but both schemes are computationally heavy
on large quantities of data. Kernel methods do not scale well with the number
of training data, and neural networks require setting critical hyperparameters.
In this work we follow an alternative pathway: we study transfer learning in
convolutional neural nets (CNN s) to alleviate the retraining cost by departing
from proxy solutions (either features or networks) obtained from previously
trained models for related variables. We show how features extracted from the
IASI data by a CNN trained to predict a physical variable can be used as inputs
to another statistical method designed to predict a different physical variable
at low altitude. In addition, the learned parameters can be transferred to
another CNN model and obtain results equivalent to those obtained when using a
CNN trained from scratch requiring only fine tuning.
|
[{'version': 'v1', 'created': 'Wed, 9 Dec 2020 09:28:42 GMT'}]
|
2020-12-21
|
[array(['Malmgren-Hansen', 'David', ''], dtype=object)
array(['Nielsen', 'Allan Aasbjerg', ''], dtype=object)
array(['Laparra', 'Valero', ''], dtype=object)
array(['Valls', 'Gustau Camps-', ''], dtype=object)]
|
6,374 |
1311.5492
|
Chris Brook Dr
|
C. B. Brook, A. Di Cintio, A. Knebe, S. Gottl\"ober, Y. Hoffman, G.
Yepes, S. Garrison-Kimmel
|
The stellar-to-halo mass relation for Local Group galaxies
|
ApJL Accepted version. Comments to [email protected]
| null |
10.1088/2041-8205/784/1/L14
| null |
astro-ph.CO astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We contend that a single power law halo mass distribution is appropriate for
direct matching to the stellar masses of observed Local Group dwarf galaxies,
allowing the determination of the slope of the stellar mass-halo mass relation
for low mass galaxies. Errors in halo masses are well defined as the Poisson
noise of simulated local group realisations, which we determine using
constrained local universe simulations (CLUES). For the stellar mass range
10$^7$<M*<10$^8$M$_\odot$, for which we likely have a complete census of
observed galaxies, we find that the stellar mass-halo mass relation follows a
power law with slope of 3.1, significantly steeper than most values in the
literature. The steep relation between stellar and halo masses indicates that
Local Group dwarf galaxies are hosted by dark matter halos with a small range
of mass. Our methodology is robust down to the stellar mass to which the census
of observed Local Group galaxies is complete, but the significant uncertainty
in the currently measured slope of the stellar-to halo mass relation will
decrease dramatically if the Local Group completeness limit was
$10^{6.5}$M$\odot$ or below, highlighting the importance of pushing such limit
to lower masses and larger volumes.
|
[{'version': 'v1', 'created': 'Thu, 21 Nov 2013 17:42:25 GMT'}
{'version': 'v2', 'created': 'Sun, 15 Dec 2013 22:16:59 GMT'}
{'version': 'v3', 'created': 'Fri, 24 Jan 2014 06:14:25 GMT'}
{'version': 'v4', 'created': 'Sun, 2 Feb 2014 00:15:01 GMT'}]
|
2015-06-18
|
[array(['Brook', 'C. B.', ''], dtype=object)
array(['Di Cintio', 'A.', ''], dtype=object)
array(['Knebe', 'A.', ''], dtype=object)
array(['Gottlöber', 'S.', ''], dtype=object)
array(['Hoffman', 'Y.', ''], dtype=object)
array(['Yepes', 'G.', ''], dtype=object)
array(['Garrison-Kimmel', 'S.', ''], dtype=object)]
|
6,375 |
2205.10036
|
Yuxin Ren
|
Yuxin Ren, Benyou Wang, Lifeng Shang, Xin Jiang, Qun Liu
|
Exploring Extreme Parameter Compression for Pre-trained Language Models
|
Accepted at ICLR2022. Code available at
https://github.com/twinkle0331/Xcompression
| null | null | null |
cs.CL cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
Recent work explored the potential of large-scale Transformer-based
pre-trained models, especially Pre-trained Language Models (PLMs) in natural
language processing. This raises many concerns from various perspectives, e.g.,
financial costs and carbon emissions. Compressing PLMs like BERT with
negligible performance loss for faster inference and cheaper deployment has
attracted much attention. In this work, we aim to explore larger compression
ratios for PLMs, among which tensor decomposition is a potential but
under-investigated one. Two decomposition and reconstruction protocols are
further proposed to improve the effectiveness and efficiency during
compression. Our compressed BERT with ${1}/{7}$ parameters in Transformer
layers performs on-par with, sometimes slightly better than the original BERT
in GLUE benchmark. A tiny version achieves $96.7\%$ performance of BERT-base
with $ {1}/{48} $ encoder parameters (i.e., less than 2M parameters excluding
the embedding layer) and $2.7 \times$ faster on inference. To show that the
proposed method is orthogonal to existing compression methods like knowledge
distillation, we also explore the benefit of the proposed method on a distilled
BERT.
|
[{'version': 'v1', 'created': 'Fri, 20 May 2022 09:16:55 GMT'}]
|
2022-05-23
|
[array(['Ren', 'Yuxin', ''], dtype=object)
array(['Wang', 'Benyou', ''], dtype=object)
array(['Shang', 'Lifeng', ''], dtype=object)
array(['Jiang', 'Xin', ''], dtype=object)
array(['Liu', 'Qun', ''], dtype=object)]
|
6,376 |
1002.0808
|
No\'e Curtz
|
No\'e Curtz, Edmond Koller, Hugo Zbinden, Michel Decroux, Louis
Antognazza, {\O}ystein Fischer and Nicolas Gisin
|
Patterning of ultrathin YBCO nanowires using a new focused-ion-beam
process
|
13 pages, 7 figures
|
Supercond. Sci. Technol. 23 045015 (2010)
|
10.1088/0953-2048/23/4/045015
| null |
cond-mat.supr-con cond-mat.mtrl-sci
|
http://creativecommons.org/licenses/by/3.0/
|
Manufacturing superconducting circuits out of ultrathin films is a
challenging task when it comes to patterning complex compounds, which are
likely to be deteriorated by the patterning process. With the purpose of
developing high-T$_c$ superconducting photon detectors, we designed a novel
route to pattern ultrathin YBCO films down to the nanometric scale. We believe
that our method, based on a specific use of a focused-ion beam, consists in
locally implanting Ga^{3+} ions and/or defects instead of etching the film.
This protocol could be of interest to engineer high-T$_c$ superconducting
devices (SQUIDS, SIS/SIN junctions and Josephson junctions), as well as to
treat other sensitive compounds.
|
[{'version': 'v1', 'created': 'Wed, 3 Feb 2010 17:54:17 GMT'}]
|
2010-03-12
|
[array(['Curtz', 'Noé', ''], dtype=object)
array(['Koller', 'Edmond', ''], dtype=object)
array(['Zbinden', 'Hugo', ''], dtype=object)
array(['Decroux', 'Michel', ''], dtype=object)
array(['Antognazza', 'Louis', ''], dtype=object)
array(['Fischer', 'Øystein', ''], dtype=object)
array(['Gisin', 'Nicolas', ''], dtype=object)]
|
6,377 |
1601.07687
|
Satoru Emori
|
Satoru Emori, Tianxiang Nan, Amine M. Belkessam, Xinjun Wang, Alexei
D. Matyushov, Christopher J. Babroski, Yuan Gao, Hwaider Lin, Nian X. Sun
|
Interfacial spin-orbit torque without bulk spin-orbit coupling
| null | null |
10.1103/PhysRevB.93.180402
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
An electric current in the presence of spin-orbit coupling can generate a
spin accumulation that exerts torques on a nearby magnetization. We demonstrate
that, even in the absence of materials with strong bulk spin-orbit coupling, a
torque can arise solely due to interfacial spin-orbit coupling, namely
Rashba-Eldestein effects at metal/insulator interfaces. In magnetically soft
NiFe sandwiched between a weak spin-orbit metal (Ti) and insulator
(Al$_2$O$_3$), this torque appears as an effective field, which is
significantly larger than the Oersted field and sensitive to insertion of an
additional layer between NiFe and Al$_2$O$_3$. Our findings point to new routes
for tuning spin-orbit torques by engineering interfacial electric dipoles.
|
[{'version': 'v1', 'created': 'Thu, 28 Jan 2016 08:35:31 GMT'}
{'version': 'v2', 'created': 'Fri, 12 Feb 2016 22:48:43 GMT'}]
|
2016-05-25
|
[array(['Emori', 'Satoru', ''], dtype=object)
array(['Nan', 'Tianxiang', ''], dtype=object)
array(['Belkessam', 'Amine M.', ''], dtype=object)
array(['Wang', 'Xinjun', ''], dtype=object)
array(['Matyushov', 'Alexei D.', ''], dtype=object)
array(['Babroski', 'Christopher J.', ''], dtype=object)
array(['Gao', 'Yuan', ''], dtype=object)
array(['Lin', 'Hwaider', ''], dtype=object)
array(['Sun', 'Nian X.', ''], dtype=object)]
|
6,378 |
1102.0456
|
Sebasti\'an E. Nuza
|
S. E. Nuza (1), M. Hoeft (2), S. Gottloeber (1), R. J. van Weeren (3),
G. Yepes (4) ((1) AIP, (2) TLS, (3) Leiden Observatory, (4) UAM)
|
Radio relics in the MareNostrum Universe
|
2 pages, 1 figure. To appear in the proceedings of the conference
"Non-thermal phenomena in colliding galaxy clusters" (Nice, France, 15-18
November 2010)
|
Memorie della Societa Astronomica Italiana, 82, 674, 2011
| null | null |
astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We identify shocked gas in simulated galaxy clusters extracted from the
MareNostrum Universe simulation (Gottloeber et al. 2006) assuming that shock
waves are regions of electron acceleration. We perform flux number counts
within the framework of the non-thermal emission model developed by Hoeft et
al. (2008). Results are presented at two different observing frequencies, i.e.
1.4 GHz and 120 MHz, posing interesting constraints for LOFAR and upcoming
radio telescopes.
|
[{'version': 'v1', 'created': 'Wed, 2 Feb 2011 15:02:05 GMT'}]
|
2015-03-18
|
[array(['Nuza', 'S. E.', '', 'AIP'], dtype=object)
array(['Hoeft', 'M.', '', 'TLS'], dtype=object)
array(['Gottloeber', 'S.', '', 'AIP'], dtype=object)
array(['van Weeren', 'R. J.', '', 'Leiden Observatory'], dtype=object)
array(['Yepes', 'G.', '', 'UAM'], dtype=object)]
|
6,379 |
0810.1581
|
Emmanuel Lesigne
|
Nikos Frantzikinakis, Michael Johnson, Emmanuel Lesigne (LMPT), Mate
Wierdl
|
Powers of sequences and convergence of ergodic averages
|
After a few minor corrections, to appear in Ergodic Theory and
Dynamical Systems
| null | null | null |
math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A sequence $(s_n)$ of integers is good for the mean ergodic theorem if for
each invertible measure preserving system $(X,\mathcal{B},\mu,T)$ and any
bounded measurable function $f$, the averages $ \frac1N \sum_{n=1}^N
f(T^{s_n}x)$ converge in the $L^2$ norm. We construct a sequence $(s_n)$ that
is good for the mean ergodic theorem, but the sequence $(s_n^2)$ is not.
Furthermore, we show that for any set of bad exponents $B$, there is a sequence
$(s_n)$ where $(s_n^k)$ is good for the mean ergodic theorem exactly when $k$
is not in $B$. We then extend this result to multiple ergodic averages. We also
prove a similar result for pointwise convergence of single ergodic averages.
|
[{'version': 'v1', 'created': 'Thu, 9 Oct 2008 06:44:46 GMT'}
{'version': 'v2', 'created': 'Mon, 13 Oct 2008 06:35:34 GMT'}
{'version': 'v3', 'created': 'Mon, 20 Apr 2009 14:42:22 GMT'}
{'version': 'v4', 'created': 'Mon, 29 Jun 2009 15:45:20 GMT'}]
|
2009-06-29
|
[array(['Frantzikinakis', 'Nikos', '', 'LMPT'], dtype=object)
array(['Johnson', 'Michael', '', 'LMPT'], dtype=object)
array(['Lesigne', 'Emmanuel', '', 'LMPT'], dtype=object)
array(['Wierdl', 'Mate', ''], dtype=object)]
|
6,380 |
1308.5147
|
Vladimir Peller
|
Fyodor Nazarov and Vladimir Peller
|
Functions of perturbed $n$-tuples of commuting self-adjoint operators
|
28 pages
| null | null | null |
math.FA math.CA math.CV math.SP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $(A_1,\cdots,A_n)$ and $(B_1,\cdots,B_n)$ be $n$-tuples of commuting
self-adjoint operators on Hilbert space. For functions $f$ on $\R^n$ satisfying
certain conditions, we obtain sharp estimates of the operator norms (or norms
in operator ideals) of $f(A_1,\cdots,A_n)-f(B_1,\cdots,B_n)$ in terms of the
corresponding norms of $A_j-B_j$, $1\le j\le n$.
We obtain analogs of earlier results on estimates for functions of perturbed
self-adjoint and normal operators. It turns out that for $n\ge3$, the methods
that were used for self-adjoint and normal operators do not work. We propose a
new method that works for arbitrary $n$.
We also get sharp estimates for quasicommutators
$f(A_1,\cdots,A_n)R-Rf(B_1,\cdots,B_n)$ in terms of norms of $A_jR-RB_j$, $1\le
j\le n$, for a bounded linear operator $R$.
|
[{'version': 'v1', 'created': 'Fri, 23 Aug 2013 14:53:42 GMT'}]
|
2013-08-26
|
[array(['Nazarov', 'Fyodor', ''], dtype=object)
array(['Peller', 'Vladimir', ''], dtype=object)]
|
6,381 |
1609.02242
|
Zhuo Bin Siu
|
Zhuo Bin Siu, Ho Cong Son, Mansoor bin Abdul Jalil, Seng Ghee Tan
|
Spin accumulation in disordered topological insulator thin films
| null | null |
10.1063/1.4985846
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Topological insulator (TI) thin films differ from the more commonly studied
semi-infinite bulk TIs in that the former possesses both top and bottom
surfaces where the surface states localized at different surfaces can couple to
one another due to the finite thickness of the film. In the presence of an
in-plane mangnetization TI thin films display two distinct phases depending on
which of the inter-surface coupling or the magnetization is stronger. In this
work, we consider a TI thin film system with an in-plane magnetization and
calculate numerically the resulting spin accumulation on both surfaces of the
film due to an in-plane electric field to linear order. We describe a numerical
scheme for performing the Kubo calculation calculation in which we include
impurity scattering and vertex corrections. We find that the sums of the spin
accumulation over the two surfaces in the in-plane direction perpendicular to
the magnetization, and in the out of plane direction, are antisymmetric in
Fermi energy about the charge neutrality point and are non-vanishing only when
the symmetry between the top and bottom TI surfaces is broken. The impurity
scattering, in general, diminishes the magnitude of the spin accumulation and
can also change the sign of the spin accumulation at some Fermi energies where
the accumulation is small.
|
[{'version': 'v1', 'created': 'Thu, 8 Sep 2016 01:51:04 GMT'}
{'version': 'v2', 'created': 'Fri, 9 Sep 2016 10:20:45 GMT'}]
|
2017-09-13
|
[array(['Siu', 'Zhuo Bin', ''], dtype=object)
array(['Son', 'Ho Cong', ''], dtype=object)
array(['Jalil', 'Mansoor bin Abdul', ''], dtype=object)
array(['Tan', 'Seng Ghee', ''], dtype=object)]
|
6,382 |
1907.03303
|
Yeor Hafouta
|
Yeor Hafouta
|
A functional CLT for nonconventional polynomial arrays
|
48 pages
| null | null | null |
math.PR math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we will prove a functional central limit theorems for
"nonconventional" sums indexed by polynomial arrays.
|
[{'version': 'v1', 'created': 'Sun, 7 Jul 2019 14:49:37 GMT'}
{'version': 'v2', 'created': 'Tue, 17 Dec 2019 02:31:21 GMT'}]
|
2019-12-18
|
[array(['Hafouta', 'Yeor', ''], dtype=object)]
|
6,383 |
1502.02257
|
Paolo Stellari
|
Mart\'i Lahoz, Emanuele Macr\`i, and Paolo Stellari
|
ACM bundles on cubic threefolds
|
40 pages. The previous version contained a typo in the name of the
first author, which has been corrected. This paper consists of the first
three sections of the previous version of arXiv:1303.6998 which was split
into two different papers. Final version to appear in Algebraic Geometry
| null | null | null |
math.AG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study ACM bundles on cubic threefolds by using derived category
techniques. We prove that the moduli space of stable Ulrich bundles of any rank
is always non-empty by showing that it is birational to a moduli space of
semistable torsion sheaves on the projective plane endowed with the action of a
Clifford algebra. We describe this birational isomorphism via wall-crossing in
the space of Bridgeland stability conditions, in the example of instanton
sheaves of minimal charge.
|
[{'version': 'v1', 'created': 'Sun, 8 Feb 2015 14:56:18 GMT'}
{'version': 'v2', 'created': 'Tue, 10 Feb 2015 03:17:48 GMT'}]
|
2015-02-11
|
[array(['Lahoz', 'Martí', ''], dtype=object)
array(['Macrì', 'Emanuele', ''], dtype=object)
array(['Stellari', 'Paolo', ''], dtype=object)]
|
6,384 |
astro-ph/9806162
| null |
S. Rauzy, C. Adami, A. Mazure
|
Cluster luminosity function and n^th ranked magnitude as a distance
indicator
|
9 pages, 7 postscript figures, LateX A&A, accepted in A&A
| null | null | null |
astro-ph
| null |
We define here a standard candle to determine the distance of clusters of
galaxies and to investigate their peculiar velocities by using the n^{th} rank
galaxy (magnitude m$_n$). We address the question of the universality of the
luminosity function for a sample of 28 rich clusters of galaxies ($cz \simeq
20000 km/s$) in order to model the influence on $m_n$ of cluster richness. This
luminosity function is found to be universal and the fit of a Schechter profile
gives $\alpha = -1.50 \pm 0.11$ and $M_{bj}* = -19.91 \pm 0.21$ in the range
[-21,-17]. The uncorrected distance indicator $m_n$ is more efficient for the
first ranks n. With n=5, we have a dispersion of 0.61 magnitude for the
(m$_n$,5log(cz)) relation. When we correct for the richness effect and subtract
the background galaxies we reduce the uncertainty to 0.21 magnitude with n=15.
Simulations show that a large part of this dispersion originates from the
intrinsic scatter of the standard candle itself. These provide upper bounds on
the amplitude $\sigma_v$ of cluster radial peculiar motions. At a confidence
level of 90%, the dispersion is 0.13 magnitude and $\sigma_v$ is limited to
1200 km/s for our sample of clusters.
|
[{'version': 'v1', 'created': 'Thu, 11 Jun 1998 14:09:27 GMT'}]
|
2016-08-30
|
[array(['Rauzy', 'S.', ''], dtype=object)
array(['Adami', 'C.', ''], dtype=object)
array(['Mazure', 'A.', ''], dtype=object)]
|
6,385 |
2106.11852
|
Dong Li
|
Dong Li and Xiaoyi Zhang
|
A regularity upgrade of pressure
|
23 pages
|
Nonlinear dispersive waves and fluids, 163--185,Contemp. Math.,
725, Amer. Math. Soc.,2019 Contemp. Math., 725, Amer. Math. Soc., Providence
RI,2019
| null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
For the incompressible Euler equations the pressure formally scales as a
quadratic function of velocity. We provide several optimal regularity estimates
on the pressure by using regularity of velocity in various Sobolev, Besov and
Hardy spaces. Our proof exploits the incompressibility condition in an
essential way and is deeply connected with the classic Div-Curl lemma which we
also generalise as a fractional Leibniz rule in Hardy spaces. To showcase the
sharpness of results, we construct a class of counterexamples at several
end-points.
|
[{'version': 'v1', 'created': 'Tue, 22 Jun 2021 15:11:25 GMT'}]
|
2021-06-23
|
[array(['Li', 'Dong', ''], dtype=object)
array(['Zhang', 'Xiaoyi', ''], dtype=object)]
|
6,386 |
1406.1916
|
Rajarshi Guhaniyogi
|
Rajarshi Guhaniyogi and David B. Dunson
|
Compressed Gaussian Process
|
33 pages, 8 figures
| null | null | null |
stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Nonparametric regression for massive numbers of samples (n) and features (p)
is an increasingly important problem. In big n settings, a common strategy is
to partition the feature space, and then separately apply simple models to each
partition set. We propose an alternative approach, which avoids such
partitioning and the associated sensitivity to neighborhood choice and distance
metrics, by using random compression combined with Gaussian process regression.
The proposed approach is particularly motivated by the setting in which the
response is conditionally independent of the features given the projection to a
low dimensional manifold. Conditionally on the random compression matrix and a
smoothness parameter, the posterior distribution for the regression surface and
posterior predictive distributions are available analytically. Running the
analysis in parallel for many random compression matrices and smoothness
parameters, model averaging is used to combine the results. The algorithm can
be implemented rapidly even in very big n and p problems, has strong
theoretical justification, and is found to yield state of the art predictive
performance.
|
[{'version': 'v1', 'created': 'Sat, 7 Jun 2014 18:28:58 GMT'}]
|
2014-06-10
|
[array(['Guhaniyogi', 'Rajarshi', ''], dtype=object)
array(['Dunson', 'David B.', ''], dtype=object)]
|
6,387 |
astro-ph/9412083
|
Jonathan Katz
|
J. I. Katz
|
The Eddington Limit and Soft Gamma Repeaters
|
15pp, tex, 0 figures
| null | null |
WU-JK-94-3
|
astro-ph
| null |
Observed intensities and inferred distances of soft gamma repeaters imply
luminosities in excess of the nominal (electron-scattering opacity) Eddington
limit by four to six orders of magnitude. I review the physical basis of this
limit. Accretional luminosities may exceed it if energy is hydrodynamically
coupled from accreting matter to closed field lines where it forms a pair gas.
This magnetically confined pair gas radiates roughly a black body spectrum with
$k_B T_e \approx 23$ KeV, consistent with observations, at a luminosity up to
$\sim 3 \times 10^{44}$ erg s$^{-1}$ for a surface field of $10^{13}$ gauss.
Magnetic transparency is not required. I discuss the minutes-long continuing
emission of March 5, 1979, steady counterparts to SGR, their spin periods and
the recoil problem.
|
[{'version': 'v1', 'created': 'Wed, 21 Dec 1994 16:47:37 GMT'}]
|
2007-05-23
|
[array(['Katz', 'J. I.', ''], dtype=object)]
|
6,388 |
2208.03761
|
Ronaldas Paulius Lencevicius
|
Ronaldas Paulius Lencevicius
|
An Empirical Analysis of the Laplace and Neural Tangent Kernels
|
105 pages, 23 figures, to be published in California State
University's ScholarWorks repository as part of master's degree completion
|
California State University's ScholarWorks, Summer (2022)
| null | null |
stat.ML cs.LG math.FA math.ST stat.TH
|
http://creativecommons.org/licenses/by/4.0/
|
The neural tangent kernel is a kernel function defined over the parameter
distribution of an infinite width neural network. Despite the impracticality of
this limit, the neural tangent kernel has allowed for a more direct study of
neural networks and a gaze through the veil of their black box. More recently,
it has been shown theoretically that the Laplace kernel and neural tangent
kernel share the same reproducing kernel Hilbert space in the space of
$\mathbb{S}^{d-1}$ alluding to their equivalence. In this work, we analyze the
practical equivalence of the two kernels. We first do so by matching the
kernels exactly and then by matching posteriors of a Gaussian process.
Moreover, we analyze the kernels in $\mathbb{R}^d$ and experiment with them in
the task of regression.
|
[{'version': 'v1', 'created': 'Sun, 7 Aug 2022 16:18:02 GMT'}]
|
2022-08-18
|
[array(['Lencevicius', 'Ronaldas Paulius', ''], dtype=object)]
|
6,389 |
1209.3530
|
Hung Pham
|
H. G. Dales, and W. \.Zelazko
|
Generators of maximal left ideals in Banach algebras
| null | null | null | null |
math.FA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In 1971, Grauert and Remmert proved that a commutative, complex, Noetherian
Banach algebra is necessarily finite-dimensional. More precisely, they proved
that a commutative, complex Banach algebra has finite dimension over $\C$
whenever all the closed ideals in the algebra are (algebraically) finitely
generated. In 1974, Sinclair and Tullo obtained a non-commutative version of
this result. In 1978, Ferreira and Tomassini improved the result of Grauert and
Remmert by showing that the statement is also true if one replaces `closed
ideals' by `maximal ideals in the \v{S}ilov boundary of $A$'. We shall give a
shorter proof of this latter result, together with some extensions and related
examples.
|
[{'version': 'v1', 'created': 'Mon, 17 Sep 2012 00:05:52 GMT'}]
|
2012-09-18
|
[array(['Dales', 'H. G.', ''], dtype=object)
array(['Żelazko', 'W.', ''], dtype=object)]
|
6,390 |
2103.01223
|
Atif Ikram
|
Atif Ikram, Masita Abdul Jalil, Amir Bin Ngah, Ahmad Salman Khan,
Tahir Iqbal
|
Offshore Software Maintenance Outsourcing Predicting Clients Proposal
using Supervised Learning
|
10 pages, 2 figures
|
International Journal of Advanced Trends in Computer Science and
Engineering, 2021
|
10.30534/ijatcse/2021/151012021
| null |
cs.SE cs.LG
|
http://creativecommons.org/licenses/by-sa/4.0/
|
In software engineering, software maintenance is the process of correction,
updating, and improvement of software products after handed over to the
customer. Through offshore software maintenance outsourcing clients can get
advantages like reduce cost, save time, and improve quality. In most cases, the
OSMO vendor generates considerable revenue. However, the selection of an
appropriate proposal among multiple clients is one of the critical problems for
OSMO vendors. The purpose of this paper is to suggest an effective machine
learning technique that can be used by OSMO vendors to assess or predict the
OSMO client proposal. The dataset is generated through a survey of OSMO vendors
working in a developing country. The results showed that supervised
learning-based classifiers like Na\"ive Bayesian, SMO, Logistics apprehended
69.75, 81.81, and 87.27 percent testing accuracy respectively. This study
concludes that supervised learning is the most suitable technique to predict
the OSMO client's proposal.
|
[{'version': 'v1', 'created': 'Mon, 1 Mar 2021 15:52:41 GMT'}]
|
2021-03-03
|
[array(['Ikram', 'Atif', ''], dtype=object)
array(['Jalil', 'Masita Abdul', ''], dtype=object)
array(['Ngah', 'Amir Bin', ''], dtype=object)
array(['Khan', 'Ahmad Salman', ''], dtype=object)
array(['Iqbal', 'Tahir', ''], dtype=object)]
|
6,391 |
nucl-th/0703045
|
Yamada Taiichi
|
Taiichi Yamada, Yasuro Funaki, Hisashi Horiuchi, Kiyomi Ikeda, and
Akihiro Tohsaki
|
Monopole Excitation to Cluster States
|
11 pages, 1 figure: revised version
|
J.Phys.Conf.Ser.111:012008,2008
|
10.1088/1742-6596/111/1/012008
| null |
nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We discuss strength of monopole excitation of the ground state to cluster
states in light nuclei. We clarify that the monopole excitation to cluster
states is in general strong as to be comparable with the single particle
strength and shares an appreciable portion of the sum rule value in spite of
large difference of the structure between the cluster state and the
shell-model-like ground state. We argue that the essential reasons of the large
strength are twofold. One is the fact that the clustering degree of freedom is
possessed even by simple shell model wave functions. The detailed feature of
this fact is described by the so-called Bayman-Bohr theorem which tells us that
SU(3) shell model wave function is equivalent to cluster model wave function.
The other is the ground state correlation induced by the activation of the
cluster degrees of freedom described by the Bayman-Bohr theorem. We
demonstrate, by deriving analytical expressions of monopole matrix elements,
that the order of magnitude of the monopole strength is governed by the first
reason, while the second reason plays a sufficient role in reproducing the data
up to the factor of magnitude of the monopole strength. Our explanation is made
by analysing three examples which are the monopole excitations to the $0^+_2$
and $0^+_3$ states in $^{16}$O and the one to the $0^+_2$ state in $^{12}$C.
The present results imply that the measurement of strong monopole transitions
or excitations is in general very useful for the study of cluster states.
|
[{'version': 'v1', 'created': 'Wed, 14 Mar 2007 15:02:48 GMT'}
{'version': 'v2', 'created': 'Sat, 30 Aug 2008 03:07:22 GMT'}]
|
2011-03-23
|
[array(['Yamada', 'Taiichi', ''], dtype=object)
array(['Funaki', 'Yasuro', ''], dtype=object)
array(['Horiuchi', 'Hisashi', ''], dtype=object)
array(['Ikeda', 'Kiyomi', ''], dtype=object)
array(['Tohsaki', 'Akihiro', ''], dtype=object)]
|
6,392 |
1201.0334
|
Sudhir Vempati
|
Sudhir K. Vempati
|
Introduction to MSSM
|
35 pages, 3 figures, latex, uses axodraw.sty
| null | null | null |
hep-ph
|
http://creativecommons.org/licenses/publicdomain/
|
These lecture notes are from a first course on the Minimal Supersymmetric
Standard Model. The level of the notes is introductory and pedagogical.
Standard Model, basic supersymmetry algebra and its representations are
considered as prerequisites. The topics covered include particle content,
structure of the lagrangian, supersymmetry breaking soft terms, electroweak
symmetry breaking and the sparticle mass spectrum. Popular supersymmetry
breaking models like minimal supergravity and gauge mediation are also
introduced.
|
[{'version': 'v1', 'created': 'Sun, 1 Jan 2012 07:17:19 GMT'}]
|
2012-01-04
|
[array(['Vempati', 'Sudhir K.', ''], dtype=object)]
|
6,393 |
hep-ex/9902030
|
Ong Saro
|
Saro Ong
|
Two-photon reactions with KLOE detector at DA$\Phi$NE
|
10 pages,Latex and 4 figures
| null | null | null |
hep-ex
| null |
We reexamine the feasibility of two-photon reactions at DA$\Phi$NE with the
KLOE detector excluding the small angle tagging system. Event-rate predictions
of interesting channels : $\gamma \gamma \to \pi^0, \eta $ and $\gamma \gamma
\to \pi^+ \pi^-, \pi^0 \pi^0$ are discussed.
|
[{'version': 'v1', 'created': 'Wed, 24 Feb 1999 10:38:14 GMT'}]
|
2007-05-23
|
[array(['Ong', 'Saro', ''], dtype=object)]
|
6,394 |
1208.3896
|
Surajit Chattopadhyay
|
Surajit Chattopadhyay (Pailan College of Management and Technology)
|
A study on the interacting Ricci dark energy in $f(R,T)$ gravity
|
12 pages, 5 figures
|
Proceedings of the National Academy of Sciences, India Section A:
Physical Sciences, Volume 84, Issue 1, pp 87-93, 2014
|
10.1007/s40010-013-0090-8
| null |
physics.gen-ph gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The present work reports study on the interacting Ricci dark energy in a
modified gravity theory named $f(R,T)$ gravity. The specific model $f(R,T)=\mu
R+\nu T$ (proposed by R. Myrzakulov, arXiv:1205.5266v2) is considered here. For
this model we have observed a quintom-like behavior of the equation of state
(EoS) parameter and a transition from matter dominated to dark energy density
has been observed through fraction density evolution. The statefinder
parameters reveal that the model interpolates between dust and $\Lambda$CDM
phases of the universe.
|
[{'version': 'v1', 'created': 'Thu, 16 Aug 2012 17:15:54 GMT'}]
|
2014-03-31
|
[array(['Chattopadhyay', 'Surajit', '',
'Pailan College of Management and Technology'], dtype=object)]
|
6,395 |
1810.11318
|
Lingxu Meng
|
Jixiang Fu, Lingxu Meng, Wei Xia
|
Complex Balanced Spaces
|
15 pages. arXiv admin note: text overlap with arXiv:1610.07155
|
Internat. J. Math. 26 (2015), no. 12, 1550105
|
10.1142/S0129167X15501050
| null |
math.CV math.AG math.DG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, the concept of balanced manifolds is generalized to reduced
complex spaces: the class B and balanced spaces. Compared with the case of
Kahlerian, the class B is similar to the Fujiki class C and the balanced space
is similar to the Kahler space. Some properties about these complex spaces are
obtained, and the relations between the balanced spaces and the class B are
studied.
|
[{'version': 'v1', 'created': 'Thu, 25 Oct 2018 15:32:02 GMT'}]
|
2021-01-07
|
[array(['Fu', 'Jixiang', ''], dtype=object)
array(['Meng', 'Lingxu', ''], dtype=object)
array(['Xia', 'Wei', ''], dtype=object)]
|
6,396 |
2209.06527
|
Du\v{s}an D. Repov\v{s}
|
Debajyoti Choudhuri, Du\v{s}an D. Repov\v{s}
|
On semilinear equations with free boundary conditions on stratified Lie
groups
| null |
J. Math. Anal. Appl. 518:1 (2023), art. 126677, 17 pp
|
10.1016/j.jmaa.2022.126677
| null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we establish existence of a solution to a semilinear equation
with free boundary conditions on stratified Lie groups. In the process, a
monotonicity condition is proved, which is quintessential in establishing the
regularity of the solution.
|
[{'version': 'v1', 'created': 'Wed, 14 Sep 2022 09:59:54 GMT'}]
|
2022-09-21
|
[array(['Choudhuri', 'Debajyoti', ''], dtype=object)
array(['Repovš', 'Dušan D.', ''], dtype=object)]
|
6,397 |
1001.1804
|
Yujie Ma
|
Zheng Xie (1), Yujie Ma (2)
|
Two unconditional stable schemes for simulation of heat equation on
manifold using DEC
|
8 pages,3figures
| null | null | null |
math.NA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
To predict the heat diffusion in a given region over time, it is often
necessary to find the numerical solution for heat equation. With the techniques
of discrete differential calculus, we propose two unconditional stable
numerical schemes for simulation heat equation on space manifold and time. The
analysis of their stability and error is accomplished by the use of maximum
principle.
|
[{'version': 'v1', 'created': 'Tue, 12 Jan 2010 07:25:56 GMT'}]
|
2010-01-13
|
[array(['Xie', 'Zheng', ''], dtype=object)
array(['Ma', 'Yujie', ''], dtype=object)]
|
6,398 |
1401.0133
|
Nabil Youssef L
|
Nabil L. Youssef and S. G. Elgendi
|
Computing nullity and kernel vectors using NF-package: Counterexamples
|
10 pages, LaTeX file, More references added, some typos corrected
|
Comp. Phys. Commun., 185 (2014), 2859-2864
|
10.1016/j.cpc.2014.07.005
| null |
math.DG gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A computational technique for calculating nullity vectors and kernel vectors,
using the new Finsler package, is introduced. As an application, three
interesting counterexamples are given. The first counterexample shows that the
two distributions $\mathrm{Ker}_R$ and $\N_R$ do not coincide. The second shows
that the nullity distribution $\N_{P^\circ}$ is not completely integrable. The
third shows that the nullity distribution $\N_\mathfrak{R}$ is not a
sub-distribution of the nullity distribution $\N_{R^\circ}$.
|
[{'version': 'v1', 'created': 'Tue, 31 Dec 2013 11:36:44 GMT'}
{'version': 'v2', 'created': 'Sat, 21 Jun 2014 11:42:33 GMT'}]
|
2016-10-24
|
[array(['Youssef', 'Nabil L.', ''], dtype=object)
array(['Elgendi', 'S. G.', ''], dtype=object)]
|
6,399 |
1711.02343
|
Shuowen Zhang
|
Haiyun He, Shuowen Zhang, Yong Zeng, Rui Zhang
|
Joint Altitude and Beamwidth Optimization for UAV-Enabled Multiuser
Communications
|
to appear in IEEE Communications Letters
| null | null | null |
cs.IT math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this letter, we study multiuser communication systems enabled by an
unmanned aerial vehicle (UAV) that is equipped with a directional antenna of
adjustable beamwidth. We propose a fly-hover-and-communicate protocol where the
ground terminals (GTs) are partitioned into disjoint clusters that are
sequentially served by the UAV as it hovers above the corresponding cluster
centers. We jointly optimize the UAV's flying altitude and antenna beamwidth
for throughput optimization in three fundamental multiuser communication
models, namely UAV-enabled downlink multicasting (MC), downlink broadcasting
(BC), and uplink multiple access (MAC). Our results show that the optimal UAV
altitude and antenna beamwidth critically depend on the communication model
considered.
|
[{'version': 'v1', 'created': 'Tue, 7 Nov 2017 09:04:37 GMT'}]
|
2017-11-08
|
[array(['He', 'Haiyun', ''], dtype=object)
array(['Zhang', 'Shuowen', ''], dtype=object)
array(['Zeng', 'Yong', ''], dtype=object)
array(['Zhang', 'Rui', ''], dtype=object)]
|
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