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|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
7,400 |
1301.6882
|
Alex Zazunov
|
A. Zazunov, P. Sodano, R. Egger
|
Even-odd parity effects in Majorana junctions
|
17 pages, 6 figures, replaced with published version (one figure
added), to appear in New. J. Phys
|
New. J. Phys. 15, 035033 (2013)
|
10.1088/1367-2630/15/3/035033
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study a general Majorana junction, where N helical nanowires are connected
to a common s-wave superconductor proximity-inducing Majorana bound states in
the wires. The normal part of each wire (j=1,...,N) acts as connected lead,
where electrons can tunnel into the respective Majorana state \gamma_{A,j}. The
Majorana states at the other end, \gamma_{B,j}, are coupled to each other by an
arbitrary tunnel matrix. We examine the conditions for even-odd parity effects
in the tunnel conductance for various junction topologies.
|
[{'version': 'v1', 'created': 'Tue, 29 Jan 2013 10:16:22 GMT'}
{'version': 'v2', 'created': 'Tue, 5 Mar 2013 10:04:19 GMT'}]
|
2015-06-12
|
[array(['Zazunov', 'A.', ''], dtype=object)
array(['Sodano', 'P.', ''], dtype=object)
array(['Egger', 'R.', ''], dtype=object)]
|
7,401 |
0709.1443
|
Zehua Zhou
|
Zehua Zhou and Min Zhu
|
Extended Ces$\acute{a}$RO Operators between Generalized Besov Spaces and
Bloch Type Spaces in the Unit Ball
|
11 pages
|
Journal of Function Spaces and Application, 7(3) (2009), 209-223
| null | null |
math.FA math.CV
| null |
Let $g$ be a holomorphic map of $B$, where $B$ is the unit ball of ${C}^n$.
Let $0<p<+\infty, -n-1<q<+\infty$, $q>-1$ and $\alpha>0$. This paper gives some
necessary and sufficient conditions for the Extended Ces$\acute{a}$ro Operators
induced by $g$ to be bounded or compact between generalized Besov space
$B(p,q)$ and $\alpha$- Bloch space ${\mathcal B}^\alpha.$
|
[{'version': 'v1', 'created': 'Mon, 10 Sep 2007 16:38:14 GMT'}]
|
2013-12-30
|
[array(['Zhou', 'Zehua', ''], dtype=object)
array(['Zhu', 'Min', ''], dtype=object)]
|
7,402 |
1707.03736
|
Preslav Nakov
|
Georgi Karadjov, Tsvetomila Mihaylova, Yasen Kiprov, Georgi Georgiev,
Ivan Koychev, and Preslav Nakov
|
The Case for Being Average: A Mediocrity Approach to Style Masking and
Author Obfuscation
|
Best of the Labs Track at CLEF-2017
| null | null | null |
cs.CL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Users posting online expect to remain anonymous unless they have logged in,
which is often needed for them to be able to discuss freely on various topics.
Preserving the anonymity of a text's writer can be also important in some other
contexts, e.g., in the case of witness protection or anonymity programs.
However, each person has his/her own style of writing, which can be analyzed
using stylometry, and as a result, the true identity of the author of a piece
of text can be revealed even if s/he has tried to hide it. Thus, it could be
helpful to design automatic tools that can help a person obfuscate his/her
identity when writing text. In particular, here we propose an approach that
changes the text, so that it is pushed towards average values for some general
stylometric characteristics, thus making the use of these characteristics less
discriminative. The approach consists of three main steps: first, we calculate
the values for some popular stylometric metrics that can indicate authorship;
then we apply various transformations to the text, so that these metrics are
adjusted towards the average level, while preserving the semantics and the
soundness of the text; and finally, we add random noise. This approach turned
out to be very efficient, and yielded the best performance on the Author
Obfuscation task at the PAN-2016 competition.
|
[{'version': 'v1', 'created': 'Wed, 12 Jul 2017 14:27:00 GMT'}
{'version': 'v2', 'created': 'Fri, 28 Jul 2017 16:11:04 GMT'}]
|
2017-07-31
|
[array(['Karadjov', 'Georgi', ''], dtype=object)
array(['Mihaylova', 'Tsvetomila', ''], dtype=object)
array(['Kiprov', 'Yasen', ''], dtype=object)
array(['Georgiev', 'Georgi', ''], dtype=object)
array(['Koychev', 'Ivan', ''], dtype=object)
array(['Nakov', 'Preslav', ''], dtype=object)]
|
7,403 |
1907.13624
|
Federico Buccioni
|
Federico Buccioni, Stefan Kallweit, Stefano Pozzorini, Max Zoller
|
NLO QCD predictions for $t\bar{t}b\bar{b}$ production in association
with a light jet at the LHC
|
37 pages, 18 figures, 6 tables
| null |
10.1007/JHEP12(2019)015
|
PSI-PR-19-16, ZU-TH 38/19
|
hep-ph hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Theoretical predictions for ttbb production are of crucial importance for ttH
measurements in the H->bb channel at the LHC. To address the large
uncertainties associated with the modelling of extra QCD radiation in ttbb
events, in this paper we present a calculation of pp->ttbbj at NLO QCD. The
behaviour of NLO corrections is analysed in a variety of observables, and to
assess theoretical uncertainties we use factor-two rescalings as well as
different dynamic scales. In this context, we propose a systematic alignment of
dynamic scales that makes it possible to disentangle normalisation and shape
uncertainties in a transparent way. Scale uncertainties at NLO are typically at
the level of 20-30% in fiducial cross sections, and below 10% for the shapes of
distributions. The kinematics of QCD radiation is investigated in detail,
including the effects of its recoil on the objects of the ttbb system. In
particular, we discuss various azimuthal correlations that allow one to
charaterise the QCD recoil pattern in a precise and transparent way. In
general, the calculation at hand provides a variety of precise benchmarks that
can be used to validate the modelling of QCD radiation in ttbb generators.
Moreover, as we will argue, pp->ttbbj at NLO entails information that can be
used to gain insights into the perturbative convergence of the inclusive ttbb
cross section beyond NLO. Based on this idea, we address the issue of the large
NLO K-factor observed in the ttbb cross section, and we provide evidence that
supports the reduction of this K-factor through a mild adjustment of the QCD
scales that are conventionally used for this process. The presented 2->5 NLO
calculations have been carried out using OpenLoops 2 in combination with Sherpa
and Munich.
|
[{'version': 'v1', 'created': 'Wed, 31 Jul 2019 17:50:36 GMT'}
{'version': 'v2', 'created': 'Tue, 10 Dec 2019 12:18:00 GMT'}]
|
2019-12-11
|
[array(['Buccioni', 'Federico', ''], dtype=object)
array(['Kallweit', 'Stefan', ''], dtype=object)
array(['Pozzorini', 'Stefano', ''], dtype=object)
array(['Zoller', 'Max', ''], dtype=object)]
|
7,404 |
1804.11129
|
Eurico Covas
|
Eurico Covas and Emmanouil Benetos
|
Optimal Neural Network Feature Selection for Spatial-Temporal
Forecasting
|
11 pages
| null |
10.1063/1.5095060
| null |
cs.NE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we show empirical evidence on how to construct the optimal
feature selection or input representation used by the input layer of a
feedforward neural network for the propose of forecasting spatial-temporal
signals. The approach is based on results from dynamical systems theory, namely
the non-linear embedding theorems. We demonstrate it for a variety of
spatial-temporal signals, with one spatial and one temporal dimensions, and
show that the optimal input layer representation consists of a grid, with
spatial/temporal lags determined by the minimum of the mutual information of
the spatial/temporal signals and the number of points taken in space/time
decided by the embedding dimension of the signal. We present evidence of this
proposal by running a Monte Carlo simulation of several combinations of input
layer feature designs and show that the one predicted by the non-linear
embedding theorems seems to be optimal or close of optimal. In total we show
evidence in four unrelated systems: a series of coupled Henon maps; a series of
couple Ordinary Differential Equations (Lorenz-96) phenomenologically modelling
atmospheric dynamics; the Kuramoto-Sivashinsky equation, a partial differential
equation used in studies of instabilities in laminar flame fronts and finally
real physical data from sunspot areas in the Sun (in latitude and time) from
1874 to 2015.
|
[{'version': 'v1', 'created': 'Mon, 30 Apr 2018 11:29:59 GMT'}]
|
2019-07-24
|
[array(['Covas', 'Eurico', ''], dtype=object)
array(['Benetos', 'Emmanouil', ''], dtype=object)]
|
7,405 |
1909.12103
|
Boris Ermolaev
|
B.I. Ermolaev, S.I. Troyan
|
Unpolarized and spin-dependent DIS structure functions in
Double-Logarithmic Approximation
|
Talk given at 18th Workshop on High Energy Spin Physics (DSPIN -19)
Dubna, Russia. 5 pp
| null |
10.1088/1742-6596/1435/1/012007
| null |
hep-ph hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We demonstrate how to calculate perturbative components of the structure
functions F_1 (for unpolarized DIS) and g_1 (spin-dependent DIS) in
Double-Logarithmic Approximation, studying separately the cases of fixed and
running QCD coupling. We show that as long as only ladder graphs are accounted
for (throughout the talk we use the Feynman gauge for virtual gluons) there is
no difference at all between F_1 and g_1. However, accounting for contributions
of non-ladder graphs brings an essential difference between them. Applying the
Saddle-Point method to the obtained expressions for F_1 and g_1 allows us to
arrive at their small-x asymptotics. The both asymptotics are of the Regge kind
but with different intercepts. The intercept of F_1 proved to be greater than
unity, so it is a new contribution to Pomeron. Finally, we discuss the
applicability region of the Regge asymptotics and demonstrate that
inappropriate replacement of F_1 and g_1 by their asymptotics outside the
applicability region can lead to introducing phenomenological Pomerons for both
unploarized and spin-dependent processes.
|
[{'version': 'v1', 'created': 'Thu, 26 Sep 2019 13:50:11 GMT'}
{'version': 'v2', 'created': 'Fri, 27 Sep 2019 09:59:29 GMT'}]
|
2020-01-29
|
[array(['Ermolaev', 'B. I.', ''], dtype=object)
array(['Troyan', 'S. I.', ''], dtype=object)]
|
7,406 |
1406.4193
|
Irismar da Paz Gon\c{c}alves
|
I. G. da Paz, H. M. Fraz\~ao, M. C. Nemes, J. G. Peixoto de Faria
|
Atomic Focusing by Quantum Fields: Entanglement Properties
|
10 pages, 4 figures
|
Physics Letters A 378 (2014) 1475
|
10.1016/j.physleta.2014.03.046
| null |
quant-ph
|
http://creativecommons.org/licenses/by/3.0/
|
The coherent manipulation of the atomic matter waves is of great interest
both in science and technology. In order to study how an atom optic device
alters the coherence of an atomic beam, we consider the quantum lens proposed
by Averbukh et al [1] to show the discrete nature of the electromagnetic field.
We extend the analysis of this quantum lens to the study of another essentially
quantum property present in the focusing process, i.e., the atom-field
entanglement, and show how the initial atomic coherence and purity are affected
by the entanglement. The dynamics of this process is obtained in closed form.
We calculate the beam quality factor and the trace of the square of the reduced
density matrix as a function of the average photon number in order to analyze
the coherence and purity of the atomic beam during the focusing process.
|
[{'version': 'v1', 'created': 'Mon, 16 Jun 2014 23:46:42 GMT'}]
|
2014-06-18
|
[array(['da Paz', 'I. G.', ''], dtype=object)
array(['Frazão', 'H. M.', ''], dtype=object)
array(['Nemes', 'M. C.', ''], dtype=object)
array(['de Faria', 'J. G. Peixoto', ''], dtype=object)]
|
7,407 |
1207.6180
|
Qiang Fang PhD
|
Qiang Fang, Xinsheng Huang
|
A Unified Approach of Observability Analysis for Airborne SLAM
| null | null | null | null |
cs.RO
|
http://creativecommons.org/licenses/by-nc-sa/3.0/
|
Observability is a key aspect of the state estimation problem of SLAM,
However, the dimension and variables of SLAM system might be changed with new
features, to which little attention is paid in the previous work. In this
paper, a unified approach of observability analysis for SLAM system is
provided, whether the dimension and variables of SLAM system are changed or
not, we can use this approach to analyze the local or total observability of
the SLAM system.
|
[{'version': 'v1', 'created': 'Thu, 26 Jul 2012 06:49:47 GMT'}]
|
2012-07-27
|
[array(['Fang', 'Qiang', ''], dtype=object)
array(['Huang', 'Xinsheng', ''], dtype=object)]
|
7,408 |
0811.2332
|
Lodovico Coccato
|
L. Coccato, O. Gerhard, M. Arnaboldi, P. Das, N. G. Douglas, K.
Kuijken, M. R. Merrifield, N. R. Napolitano, E. Noordermeer, A. J.
Romanowsky, M. Capaccioli, A. Cortesi, F. De Lorenzi, K. C. Freeman
|
Probing the kinematics of early-type galaxy halos using planetary
nebulae
|
4 pages, 3 figures. refereed proceeding of the "Galactic and Stellar
Dynamics 2008" conference, Ed. C.M. Boily. To be published in AN, year: 2008,
vol: 329, Issue: 9-10, pages: 912-915
| null |
10.1002/asna.200811051
| null |
astro-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present first results of a study of the halo kinematics for a sample of
early type galaxies using planetary nebulae (PNe) as kinematical tracers. PNe
allow to extend up to several effective radii (Re) the information from
absorption line kinematics (confined to within 1 or 2 Re), providing valuable
information and constraints for merger simulations and galaxy formation models.
We find that the specific angular momentum per unit mass has a more complex
radial dependence when the halo region is taken into account and that the halo
velocity dispersion is related to the total galaxy luminosity, isophotal shape,
and number of PNe per unit of luminosity
|
[{'version': 'v1', 'created': 'Fri, 14 Nov 2008 12:57:03 GMT'}]
|
2009-11-13
|
[array(['Coccato', 'L.', ''], dtype=object)
array(['Gerhard', 'O.', ''], dtype=object)
array(['Arnaboldi', 'M.', ''], dtype=object)
array(['Das', 'P.', ''], dtype=object)
array(['Douglas', 'N. G.', ''], dtype=object)
array(['Kuijken', 'K.', ''], dtype=object)
array(['Merrifield', 'M. R.', ''], dtype=object)
array(['Napolitano', 'N. R.', ''], dtype=object)
array(['Noordermeer', 'E.', ''], dtype=object)
array(['Romanowsky', 'A. J.', ''], dtype=object)
array(['Capaccioli', 'M.', ''], dtype=object)
array(['Cortesi', 'A.', ''], dtype=object)
array(['De Lorenzi', 'F.', ''], dtype=object)
array(['Freeman', 'K. C.', ''], dtype=object)]
|
7,409 |
0804.0880
|
Shimajiri Yoshito
|
Yoshito Shimajiri, Satoko Takahashi, Shigehisa Takakuwa, Masao Saito,
and Ryohei Kawabe
|
Millimeter- and Submillimeter-Wave Observations of the OMC-2/3 Region.
II. Observational Evidence for Outflow-Triggered Star Formation in the OMC-2
FIR 3/4 Region
|
13 pages, 9 figures. Accepted by ApJ
| null |
10.1086/588629
| null |
astro-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We have carried out the observations of the OMC-2 FIR 3/4 region with the NMA
and ASTE in the H$^{13}$CO$^{+}$ (1--0), $^{12}$CO (3--2, 1--0), SiO ($v$=0,
$J$=2--1), CS (2--1), and CH$_3$OH ($J_K$=7$_K$--6$_K$) lines and in the 3.3 mm
continuum emission. Our NMA observations in the H$^{13}$CO$^{+}$ emission have
revealed 0.07 pc-scale dense gas associated with FIR 4. The $^{12}$CO
(3--2,1--0) emission shows high-velocity blue and red shifted components at the
both north-east and south-west of FIR 3, suggesting a molecular outflow nearly
along the plane of the sky driven by FIR 3. The SiO and the CH$_{3}$OH emission
are detected around the interface between the outflow and the dense gas.
Furthermore, the $^{12}$CO (1--0) emission shows an L-shaped structure in the
P-V diagram. These results imply presence of the shock due to the interaction
between the molecular outflow driven by FIR 3 and the dense gas associated with
FIR 4. Moreover, our high angular-resolution observations of FIR 4 in the 3.3
mm continuum emission have first found that FIR 4 consists of eleven dusty
cores. The separation among these cores is on the same order of the Jeans
length, suggesting that the fragmentation into these cores has been caused by
the gravitational instability. The time scale of the fragmentation is similar
to the time scale of the interaction between the molecular outflow and the
dense gas. We suggest that the interaction between the molecular outflow from
FIR 3 and the dense gas associated with FIR 4 triggered the fragmentation into
these dusty cores, and hence the next generation the cluster formation.
|
[{'version': 'v1', 'created': 'Sun, 6 Apr 2008 00:40:54 GMT'}]
|
2009-11-13
|
[array(['Shimajiri', 'Yoshito', ''], dtype=object)
array(['Takahashi', 'Satoko', ''], dtype=object)
array(['Takakuwa', 'Shigehisa', ''], dtype=object)
array(['Saito', 'Masao', ''], dtype=object)
array(['Kawabe', 'Ryohei', ''], dtype=object)]
|
7,410 |
physics/0501074
|
Edwin Lock H.
|
E.H. Lock, A.V. Vashkovsky (Institute of the Radio Engineering and
Electronics of Russian Academy of Science, Fryazino' department)
|
Unidirectional Magnetostatic Waves
|
7 pages, 2 figures
| null | null | null |
physics.class-ph physics.gen-ph
| null |
Dispersion characteristics of magnetostatic waves in tangentially magnetized
to saturation ferrite film with a "magnetic wall" condition (tangential
component of microwave magnetic field is equal to zero) on the one of the film
surface were calculated. It is found, that unidirectional magnetostatic waves
appear in this geometry: they can transfer energy only in one direction and
fundamentally cannot transfer energy in an opposite direction.
|
[{'version': 'v1', 'created': 'Fri, 14 Jan 2005 13:32:44 GMT'}
{'version': 'v2', 'created': 'Tue, 8 Feb 2005 09:00:46 GMT'}]
|
2007-05-23
|
[array(['Lock', 'E. H.', '',
"Institute of the Radio Engineering and\n Electronics of Russian Academy of Science, Fryazino' department"],
dtype=object)
array(['Vashkovsky', 'A. V.', '',
"Institute of the Radio Engineering and\n Electronics of Russian Academy of Science, Fryazino' department"],
dtype=object) ]
|
7,411 |
1801.04731
|
Matteo Rosati
|
Matteo Rosati, Andrea Mari and Vittorio Giovannetti
|
Narrow Bounds for the Quantum Capacity of Thermal Attenuators
|
v4: corrected typo in Eq. 40; final version, minor corrections; 8+3
pages, 4 figures
|
Nature Communications 9, 4339 (2018)
|
10.1038/s41467-018-06848-0
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Thermal attenuator channels model the decoherence of quantum systems
interacting with a thermal bath, e.g., a two-level system subject to thermal
noise and an electromagnetic signal travelling through a fiber or in
free-space. Hence determining the quantum capacity of these channels is an
outstanding open problem for quantum computation and communication. Here we
derive several upper bounds on the quantum capacity of qubit and bosonic
thermal attenuators. We introduce an extended version of such channels which is
degradable and hence has a single-letter quantum capacity, bounding that of the
original thermal attenuators. Another bound for bosonic attenuators is given by
the bottleneck inequality applied to a particular channel decomposition. With
respect to previously known bounds we report better results in a broad range of
attenuation and noise: we can now approximate the quantum capacity up to a
negligible uncertainty for most practical applications, e.g., for low thermal
noise.
|
[{'version': 'v1', 'created': 'Mon, 15 Jan 2018 10:46:07 GMT'}
{'version': 'v2', 'created': 'Fri, 19 Jan 2018 12:37:41 GMT'}
{'version': 'v3', 'created': 'Tue, 18 Sep 2018 09:29:40 GMT'}
{'version': 'v4', 'created': 'Mon, 1 Oct 2018 10:02:10 GMT'}
{'version': 'v5', 'created': 'Tue, 11 Dec 2018 13:41:15 GMT'}]
|
2018-12-12
|
[array(['Rosati', 'Matteo', ''], dtype=object)
array(['Mari', 'Andrea', ''], dtype=object)
array(['Giovannetti', 'Vittorio', ''], dtype=object)]
|
7,412 |
1503.02599
|
Tomasz Adamowicz
|
Tomasz Adamowicz, Olli Toivanen
|
H\"older continuity of quasiminimizers with nonstandard growth
|
26 pages
| null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show the H\"older continuity of quasiminimizers of the energy functionals
$\int f(x,u,\nabla u)\,dx$ with nonstandard growth under the general structure
conditions $$ |z|^{p(x)} - b(x)|y|^{r(x)}-g(x) \leq f(x,y,z) \leq \mu|z|^{p(x)}
+ b(x)|y|^{r(x)} + g(x). $$ The result is illustrated by showing that weak
solutions to a class of $(A,B)$-harmonic equations $$
-{\rm div} A(x,u,\nabla u) = B(x,u,\nabla u), $$ are quasiminimizers of the
variational integral of the above type and, thus, are H\"older continuous. Our
results extend works by Chiad\`o Piat-Coscia, Fan-Zhao and Giusti-Giaquinta.
|
[{'version': 'v1', 'created': 'Mon, 9 Mar 2015 18:16:09 GMT'}]
|
2015-03-10
|
[array(['Adamowicz', 'Tomasz', ''], dtype=object)
array(['Toivanen', 'Olli', ''], dtype=object)]
|
7,413 |
astro-ph/0603202
|
Olga Cucciati Dott.
|
O. Cucciati, A. Iovino, C. Marinoni, O. Ilbert, S. Bardelli, P.
Franzetti, O. Le Fevre, A. Pollo, G. Zamorani, A. Cappi, L. Guzzo, H.J.
McCracken, B. Meneux, R. Scaramella, M. Scodeggio, L. Tresse, E. Zucca, D.
Bottini, B. Garilli, V. Le Brun, D. Maccagni, J.P. Picat, G. Vettolani, A.
Zanichelli, C. Adami, M. Arnaboldi, S. Arnouts, M. Bolzonella, S. Charlot, P.
Ciliegi, T. Contini, S. Foucaud, I. Gavignaud, B. Marano, A. Mazure, R.
Merighi, S. Paltani, R. Pello', L. Pozzetti, M. Radovich, M. Bondi, A.
Bongiorno, G. Busarello, S. de la Torre, L. Gregorini, F. Lamareille, G.
Mathez, Y. Mellier, P. Merluzzi, V. Ripepi, D. Rizzo, G. Temporin, D. Vergani
|
The VIMOS VLT Deep Survey: The build-up of the colour-density relation
|
17 pages, 10 figures, figures added, accepted by A&A
| null |
10.1051/0004-6361:20065161
| null |
astro-ph
| null |
We investigate the redshift and luminosity evolution of the galaxy
colour-density relation using the data from the First Epoch VIMOS-VLT Deep
Survey (VVDS). The size (6582 galaxies), depth (I_AB<=24) and redshift sampling
rate of the survey enable us to reconstruct the 3D galaxy environment on
relatively local scales (R=5 Mpc) up to z~1.5. Particular attention has been
devoted to calibrate a density reconstruction scheme, which factors out survey
selection effects and reproduces in an unbiased way the underlying `real'
galaxy environment. While at lower redshift we confirm the existence of a steep
colour-density relation, with the fraction of the reddest(/bluest) galaxies of
the same luminosity increasing(/decreasing) as a function of density, this
trend progressively disappears in the highest redshift bins investigated. The
rest frame u*-g' colour-magnitude diagram shows a bimodal pattern in both low
and high density environments up to z~1.5. We find that the bimodal
distribution is not universal but strongly depends upon environment: at lower
redshifts the colour-magnitude diagrams in low and high density regions are
significantly different while the progressive weakening of the colour-density
relation causes the two bimodal distributions to nearly mirror each other in
the highest redshift bin investigated. Both the colour-density and the
colour-magnitude-density relations appear to be a transient, cumulative product
of genetic and environmental factors operating over at least a period of 9 Gyr.
These findings support an evolutionary scenario in which star formation/gas
depletion processes are accelerated in more luminous objects and in high
density environments: star formation activity is shifting with cosmic time
towards lower luminosity (downsizing), and out of high density environments.
|
[{'version': 'v1', 'created': 'Wed, 8 Mar 2006 16:57:57 GMT'}
{'version': 'v2', 'created': 'Fri, 28 Jul 2006 15:19:00 GMT'}]
|
2009-11-11
|
[array(['Cucciati', 'O.', ''], dtype=object)
array(['Iovino', 'A.', ''], dtype=object)
array(['Marinoni', 'C.', ''], dtype=object)
array(['Ilbert', 'O.', ''], dtype=object)
array(['Bardelli', 'S.', ''], dtype=object)
array(['Franzetti', 'P.', ''], dtype=object)
array(['Fevre', 'O. Le', ''], dtype=object)
array(['Pollo', 'A.', ''], dtype=object)
array(['Zamorani', 'G.', ''], dtype=object)
array(['Cappi', 'A.', ''], dtype=object)
array(['Guzzo', 'L.', ''], dtype=object)
array(['McCracken', 'H. J.', ''], dtype=object)
array(['Meneux', 'B.', ''], dtype=object)
array(['Scaramella', 'R.', ''], dtype=object)
array(['Scodeggio', 'M.', ''], dtype=object)
array(['Tresse', 'L.', ''], dtype=object)
array(['Zucca', 'E.', ''], dtype=object)
array(['Bottini', 'D.', ''], dtype=object)
array(['Garilli', 'B.', ''], dtype=object)
array(['Brun', 'V. Le', ''], dtype=object)
array(['Maccagni', 'D.', ''], dtype=object)
array(['Picat', 'J. P.', ''], dtype=object)
array(['Vettolani', 'G.', ''], dtype=object)
array(['Zanichelli', 'A.', ''], dtype=object)
array(['Adami', 'C.', ''], dtype=object)
array(['Arnaboldi', 'M.', ''], dtype=object)
array(['Arnouts', 'S.', ''], dtype=object)
array(['Bolzonella', 'M.', ''], dtype=object)
array(['Charlot', 'S.', ''], dtype=object)
array(['Ciliegi', 'P.', ''], dtype=object)
array(['Contini', 'T.', ''], dtype=object)
array(['Foucaud', 'S.', ''], dtype=object)
array(['Gavignaud', 'I.', ''], dtype=object)
array(['Marano', 'B.', ''], dtype=object)
array(['Mazure', 'A.', ''], dtype=object)
array(['Merighi', 'R.', ''], dtype=object)
array(['Paltani', 'S.', ''], dtype=object)
array(["Pello'", 'R.', ''], dtype=object)
array(['Pozzetti', 'L.', ''], dtype=object)
array(['Radovich', 'M.', ''], dtype=object)
array(['Bondi', 'M.', ''], dtype=object)
array(['Bongiorno', 'A.', ''], dtype=object)
array(['Busarello', 'G.', ''], dtype=object)
array(['de la Torre', 'S.', ''], dtype=object)
array(['Gregorini', 'L.', ''], dtype=object)
array(['Lamareille', 'F.', ''], dtype=object)
array(['Mathez', 'G.', ''], dtype=object)
array(['Mellier', 'Y.', ''], dtype=object)
array(['Merluzzi', 'P.', ''], dtype=object)
array(['Ripepi', 'V.', ''], dtype=object)
array(['Rizzo', 'D.', ''], dtype=object)
array(['Temporin', 'G.', ''], dtype=object)
array(['Vergani', 'D.', ''], dtype=object)]
|
7,414 |
1204.0534
|
Kirill Bronnikov
|
Kirill Bronnikov, Irina Dymnikova, Evgeny Galaktionov
|
Multi-horizon spherically symmetric spacetimes with several scales of
vacuum energy
|
23 pages, 7 figures, accepted for publication in Class. Quantum Grav
|
Class. Quantum Grav. 29, 095025 (2012)
|
10.1088/0264-9381/29/9/095025
| null |
gr-qc astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a family of spherically symmetric multi-horizon spacetimes with a
vacuum dark fluid, associated with a time-dependent and spatially inhomogeneous
cosmological term. The vacuum dark fluid is defined in a model-independent way
by the symmetry of its stress-energy tensor, i.e., its invariance under Lorentz
boosts in a distinguished spatial direction ($p_r=-\rho$ for spherical
symmetry), which makes the dark fluid essentially anisotropic and allows its
density to evolve. The related cosmological models belong to the Lemaitre class
of models with anisotropic fluids and describe a universe with several scales
of vacuum energy related to phase transitions during its evolution. The typical
behavior of solutions and the number of spacetime horizons are determined by
the number of vacuum scales. We study in detail a model with three vacuum
scales: GUT, QCD and that responsible for the present accelerated expansion.
The model parameters are fixed by the observational data and by analyticity and
causality conditions. We find that our Universe has three horizons. During the
first inflation the Universe enters a T-region which makes the expansion
irreversible. After the second phase transition at the QCD scale the Universe
enters an R-region, where for a long time its geometry remains almost
pseudo-Euclidean. After crossing the third horizon related to the present
vacuum density, the Universe should enter the next T-region with inevitable
expansion.
|
[{'version': 'v1', 'created': 'Mon, 2 Apr 2012 20:54:28 GMT'}]
|
2015-06-04
|
[array(['Bronnikov', 'Kirill', ''], dtype=object)
array(['Dymnikova', 'Irina', ''], dtype=object)
array(['Galaktionov', 'Evgeny', ''], dtype=object)]
|
7,415 |
0811.0273
|
Vinay Joseph
|
Vinod Sharma, Utpal Mukherji and Vinay Joseph
|
Efficient Energy Management Policies for Networks with Energy Harvesting
Sensor Nodes
|
Keywords: Optimal energy management policies, energy harvesting,
sensor networks, MAC protocols
| null | null | null |
cs.NI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study sensor networks with energy harvesting nodes. The generated energy
at a node can be stored in a buffer. A sensor node periodically senses a random
field and generates a packet. These packets are stored in a queue and
transmitted using the energy available at that time at the node. For such
networks we develop efficient energy management policies. First, for a single
node, we obtain policies that are throughput optimal, i.e., the data queue
stays stable for the largest possible data rate. Next we obtain energy
management policies which minimize the mean delay in the queue. We also compare
performance of several easily implementable suboptimal policies. A greedy
policy is identified which, in low SNR regime, is throughput optimal and also
minimizes mean delay. Next using the results for a single node, we develop
efficient MAC policies.
|
[{'version': 'v1', 'created': 'Mon, 3 Nov 2008 12:05:01 GMT'}]
|
2008-11-04
|
[array(['Sharma', 'Vinod', ''], dtype=object)
array(['Mukherji', 'Utpal', ''], dtype=object)
array(['Joseph', 'Vinay', ''], dtype=object)]
|
7,416 |
0901.2150
|
Malgorzata Sobolewska
|
M.A. Sobolewska (FORTH/Crete), M. Gierlinski (Univ. of Durham/UK), A.
Siemiginowska (Harvard-Smithsonian CfA/US)
|
What can we learn about quasars from alpha_OX measurements in galactic
black hole binaries?
|
10 pages, 7 figures, accepted for publication in MNRAS
| null |
10.1111/j.1365-2966.2009.14436.x
| null |
astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We draw a comparison between AGN and Galactic black hole binaries using a
uniform description of spectral energy distribution of these two classes of
accreting X-ray sources. We parametrize spectra of GBHs with an alpha_GBH
parameter which we define as a slope of a nominal power law function between 3
and 20 keV. We show that this parameter can be treated as an equivalent of the
X-ray loudness, alpha_OX, used to describe AGN spectra. We do not find linear
correlation between the alpha_GBH and disc flux (similar to that between
alpha_OX and optical/UV luminosity found in AGN). Instead, we show that
alpha_GBH follows a well defined pattern during a GBH outburst. We find that
alpha_GBH tend to cluster around 1, 1.5 and 2, which correspond to a hard, very
high/intermediate and soft spectral state, respectively. We conclude that
majority of the observed Type 1 radio quiet AGN are in a spectral state
corresponding to a very high/intermediate state of GBHs. The same conclusion is
valid for radio loud AGN. We also study variations of the spectral slopes
(alpha_GBH and the X-ray photon index, Gamma) as a function of disc and
Comptonization fluxes. We discuss these dependencies in the context of
correlations of alpha_OX and Gamma with the optical/UV and X-ray 2 keV fluxes
considered for AGN and quasars.
|
[{'version': 'v1', 'created': 'Thu, 15 Jan 2009 00:33:46 GMT'}]
|
2009-11-13
|
[array(['Sobolewska', 'M. A.', '', 'FORTH/Crete'], dtype=object)
array(['Gierlinski', 'M.', '', 'Univ. of Durham/UK'], dtype=object)
array(['Siemiginowska', 'A.', '', 'Harvard-Smithsonian CfA/US'],
dtype=object) ]
|
7,417 |
1812.08532
|
Prof. Chandiramouli R.
|
V. Nagarajan, R. Chandiramouli
|
Switching behaviour of stilbene molecular device: a first-principles
study
|
12 pages, 10 figures
|
Condens. Matter Phys., 2018, vol. 21, No. 4, 43301
|
10.5488/CMP.21.43301
| null |
cond-mat.mes-hall
|
http://creativecommons.org/licenses/by/4.0/
|
The switching behaviour of stilbene molecular system (SMS) device is
investigated with the help of non-equilibrium Green's function (NEGF) approach
using first principles calculation. The transmission spectrum of cis-isomers
confirmed that more electrons are transferred across the SMS-device using
optical excitation by the spin of C$=$C bond by torsion angle
$(\theta=180^\circ)$. The current-voltage characteristics show the lower
magnitude of current for trans-stilbene and higher magnitude of current for
cis-stilbene for an externally applied bias voltage. The outcome of the
proposed work suggests that cis and trans-stilbene molecular device can be used
as a switch.
|
[{'version': 'v1', 'created': 'Thu, 20 Dec 2018 12:52:55 GMT'}]
|
2018-12-21
|
[array(['Nagarajan', 'V.', ''], dtype=object)
array(['Chandiramouli', 'R.', ''], dtype=object)]
|
7,418 |
1606.04940
|
Pierre Paleo
|
Pierre Paleo, Michel Desvignes, Alessandro Mirone
|
A practical local tomography reconstruction algorithm based on known
subregion
| null | null | null | null |
physics.med-ph cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We propose a new method to reconstruct data acquired in a local tomography
setup. This method uses an initial reconstruction and refines it by correcting
the low frequency artifacts known as the cupping effect. A basis of Gaussian
functions is used to correct the initial reconstruction. The coefficients of
this basis are iteratively optimized under the constraint of a known subregion.
Using a coarse basis reduces the degrees of freedom of the problem while
actually correcting the cupping effect. Simulations show that the known region
constraint yields an unbiased reconstruction, in accordance to uniqueness
theorems stated in local tomography.
|
[{'version': 'v1', 'created': 'Wed, 15 Jun 2016 09:41:11 GMT'}]
|
2016-06-17
|
[array(['Paleo', 'Pierre', ''], dtype=object)
array(['Desvignes', 'Michel', ''], dtype=object)
array(['Mirone', 'Alessandro', ''], dtype=object)]
|
7,419 |
gr-qc/9805022
|
Patrizia Vitale
|
G. Bimonte, R. Musto, A. Stern and P. Vitale
|
Comments on the Non-Commutative Description of Classical Gravity
|
Latex file, 13 pages, no figures
|
Phys.Lett. B441 (1998) 69-76
|
10.1016/S0370-2693(98)01200-3
|
UAHEP 982, DSF-12/98
|
gr-qc hep-th
| null |
We find a one-parameter family of Lagrangian descriptions for classical
general relativity in terms of tetrads which are not c-numbers. Rather, they
obey exotic commutation relations. These noncommutative properties drop out in
the metric sector of the theory, where the Christoffel symbols and the Riemann
tensor are ordinary commuting objects and they are given by the usual
expression in terms of the metric tensor. Although the metric tensor is not a
c-number, we argue that all measurements one can make in this theory are
associated with c-numbers, and thus that the common invariant sector of our
one--parameter family of deformed gauge theories (for the case of zero torsion)
is physically equivalent to Einstein's general relativity.
|
[{'version': 'v1', 'created': 'Thu, 7 May 1998 12:52:43 GMT'}]
|
2009-10-31
|
[array(['Bimonte', 'G.', ''], dtype=object)
array(['Musto', 'R.', ''], dtype=object)
array(['Stern', 'A.', ''], dtype=object)
array(['Vitale', 'P.', ''], dtype=object)]
|
7,420 |
1701.03309
|
EPTCS
|
David Reutter (University of Oxford), Jamie Vicary (University of
Oxford)
|
Shaded Tangles for the Design and Verification of Quantum Programs
(Extended Abstract)
|
In Proceedings QPL 2017, arXiv:1802.09737
|
EPTCS 266, 2018, pp. 329-348
|
10.4204/EPTCS.266.21
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We give a scheme for interpreting shaded tangles as quantum programs, with
the property that isotopic tangles yield equivalent programs. We analyze many
known quantum programs in this way -- including entanglement manipulation and
error correction -- and in each case present a fully-topological formal
verification, yielding in several cases substantial new insight into how the
program works. We also use our methods to identify several new or generalized
procedures.
|
[{'version': 'v1', 'created': 'Thu, 12 Jan 2017 11:20:53 GMT'}
{'version': 'v2', 'created': 'Sat, 14 Jan 2017 00:24:26 GMT'}
{'version': 'v3', 'created': 'Tue, 31 Jan 2017 18:17:08 GMT'}
{'version': 'v4', 'created': 'Wed, 1 Feb 2017 09:29:43 GMT'}
{'version': 'v5', 'created': 'Thu, 11 May 2017 16:20:43 GMT'}
{'version': 'v6', 'created': 'Fri, 2 Mar 2018 03:53:10 GMT'}]
|
2018-03-05
|
[array(['Reutter', 'David', '', 'University of Oxford'], dtype=object)
array(['Vicary', 'Jamie', '', 'University of\n Oxford'], dtype=object)]
|
7,421 |
1002.1905
|
Martin Bridgeman
|
Martin Bridgeman and Jeremy Kahn
|
Hyperbolic volume of n-manifolds with geodesic boundary and orthospectra
|
19 pages, 3 figures
| null | null | null |
math.MG math.FA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we describe a function $F_n:{\bf R}_+ \to {\bf R}_{+}$ such
that for any hyperbolic n-manifold $M$ with totally geodesic boundary $\partial
M \neq \emptyset$, the volume of $M$ is equal to the sum of the values of $F_n$
on the {\em orthospectrum} of $M$. We derive an integral formula for $F_n$ in
terms of elementary functions. We use this to give a lower bound for the volume
of a hyperbolic n-manifold with totally geodesic boundary in terms of the area
of the boundary.
|
[{'version': 'v1', 'created': 'Tue, 9 Feb 2010 16:20:59 GMT'}]
|
2010-02-10
|
[array(['Bridgeman', 'Martin', ''], dtype=object)
array(['Kahn', 'Jeremy', ''], dtype=object)]
|
7,422 |
cond-mat/0207168
|
Daniel Miller
|
Daniel L. Miller
|
The Kondo state in quantum point contacts and the local moment in
semiconductor quantum dots - two sides of the same phenomenon
|
figures included
| null | null | null |
cond-mat
| null |
This is a three step work: i) we explain why quantum point contacts are
similar to ballistic quantum dots; ii) we introduce the virtual Kondo state in
both systems; iii-1st) this state explains 0.7 structure in point contacts;
iii-2nd) formation of the local moment on this state is described by the nearly
symmetric Anderson model, we solve it for finite size system having in mind
quantum dots. We found one large level spacing $\Delta^\ast \propto
(U\Gamma)^{1/2}\gg \Delta$, where $U$ is the charging energy of the virtual
state, $\Gamma$ is the spectral width of this state and $\Delta$ is the mean
level spacing of whole system. The theory explains periodicity of abnormal
level spacing vs gate potential. The theory is in agreement with many
experiments.
|
[{'version': 'v1', 'created': 'Mon, 8 Jul 2002 17:49:59 GMT'}]
|
2007-05-23
|
[array(['Miller', 'Daniel L.', ''], dtype=object)]
|
7,423 |
1404.1548
|
Hong Qian
|
Hong Qian and Xue-Juan Zhang and Min Qian
|
Stochastic Dynamics of Electrical Membrane with Voltage-Dependent Ion
Channel Fluctuations
|
8 pages, two figures
|
Europhysics Letters, vol. 106, 10002 (2014)
|
10.1209/0295-5075/106/10002
| null |
physics.bio-ph cond-mat.stat-mech q-bio.SC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Brownian ratchet like stochastic theory for the electrochemical membrane
system of Hodgkin-Huxley (HH) is developed. The system is characterized by a
continuous variable $Q_m(t)$, representing mobile membrane charge density, and
a discrete variable $K_t$ representing ion channel conformational dynamics. A
Nernst-Planck-Nyquist-Johnson type equilibrium is obtained when multiple
conducting ions have a common reversal potential. Detailed balance yields a
previously unknown relation between the channel switching rates and membrane
capacitance, bypassing Eyring-type explicit treatment of gating charge
kinetics. From a molecular structural standpoint, membrane charge $Q_m$ is a
more natural dynamic variable than potential $V_m$; our formalism treats
$Q_m$-dependent conformational transition rates $\lambda_{ij}$ as intrinsic
parameters. Therefore in principle, $\lambda_{ij}$ vs. $V_m$ is experimental
protocol dependent,e.g., different from voltage or charge clamping
measurements. For constant membrane capacitance per unit area $C_m$ and
neglecting membrane potential induced by gating charges, $V_m=Q_m/C_m$, and
HH's formalism is recovered. The presence of two types of ions, with different
channels and reversal potentials, gives rise to a nonequilibrium steady state
with positive entropy production $e_p$. For rapidly fluctuating channels, an
expression for $e_p$ is obtained.
|
[{'version': 'v1', 'created': 'Sun, 6 Apr 2014 05:54:10 GMT'}]
|
2014-05-19
|
[array(['Qian', 'Hong', ''], dtype=object)
array(['Zhang', 'Xue-Juan', ''], dtype=object)
array(['Qian', 'Min', ''], dtype=object)]
|
7,424 |
2211.05510
|
Daria Uccheddu
|
Daria Uccheddu
|
A different approach to teaching geometry in Italian secondary schools
|
6 pages, 1figure
| null | null | null |
math.HO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Inspired by a didactic experience in an academic environment, and following
the idea given by M. Villa in \cite{Villa}, we illustrate two different proofs
of an important result in Euclidean geometry studied in the first two years of
Italian secondary schools. Specifically, we propose the proof of Varignon's
Theorem from both the classical synthetic and the analytical points of view.
|
[{'version': 'v1', 'created': 'Thu, 10 Nov 2022 12:05:08 GMT'}]
|
2022-11-11
|
[array(['Uccheddu', 'Daria', ''], dtype=object)]
|
7,425 |
0903.1164
|
Kwokwai Chan
|
Kwokwai Chan
|
Holomorphic line bundles on projective toric manifolds from Lagrangian
sections of their mirrors by SYZ transformations
|
v2: 20 pages; Definition 3.1 modified, a couple of examples added; to
appear in IMRN
|
Int. Math. Res. Not. 2009 (2009), no. 24, 4686-4708
|
10.1093/imrn/rnp105
| null |
math.SG math.AG math.DG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The mirror of a projective toric manifold $X_\Sigma$ is given by a
Landau-Ginzburg model $(Y,W)$. We introduce a class of Lagrangian submanifolds
in $(Y,W)$ and show that, under the SYZ mirror transformation, they can be
transformed to torus-invariant hermitian metrics on holomorphic line bundles
over $X_\Sigma$. Through this geometric correspondence, we also identify the
mirrors of Hermitian-Einstein metrics, which are given by distinguished
Lagrangian sections whose potentials satisfy certain Laplace-type equations.
|
[{'version': 'v1', 'created': 'Fri, 6 Mar 2009 08:06:08 GMT'}
{'version': 'v2', 'created': 'Tue, 30 Jun 2009 03:31:05 GMT'}]
|
2014-07-21
|
[array(['Chan', 'Kwokwai', ''], dtype=object)]
|
7,426 |
2005.01263
|
Yang Cao
|
Yang Cao, Yonghui Xiao, Shun Takagi, Li Xiong, Masatoshi Yoshikawa,
Yilin Shen, Jinfei Liu, Hongxia Jin, and Xiaofeng Xu
|
PGLP: Customizable and Rigorous Location Privacy through Policy Graph
|
accepted in the 25th European Symposium on Research in Computer
Security (ESORICS) 2020
| null | null | null |
cs.CR cs.CY
|
http://creativecommons.org/publicdomain/zero/1.0/
|
Location privacy has been extensively studied in the literature. However,
existing location privacy models are either not rigorous or not customizable,
which limits the trade-off between privacy and utility in many real-world
applications. To address this issue, we propose a new location privacy notion
called PGLP, i.e., \textit{Policy Graph based Location Privacy}, providing a
rich interface to release private locations with customizable and rigorous
privacy guarantee. First, we design the privacy metrics of PGLP by extending
differential privacy. Specifically, we formalize a user's location privacy
requirements using a \textit{location policy graph}, which is expressive and
customizable. Second, we investigate how to satisfy an arbitrarily given
location policy graph under adversarial knowledge. We find that a location
policy graph may not always be viable and may suffer \textit{location exposure}
when the attacker knows the user's mobility pattern. We propose efficient
methods to detect location exposure and repair the policy graph with optimal
utility. Third, we design a private location trace release framework that
pipelines the detection of location exposure, policy graph repair, and private
trajectory release with customizable and rigorous location privacy. Finally, we
conduct experiments on real-world datasets to verify the effectiveness of the
privacy-utility trade-off and the efficiency of the proposed algorithms.
|
[{'version': 'v1', 'created': 'Mon, 4 May 2020 04:25:59 GMT'}
{'version': 'v2', 'created': 'Wed, 15 Jul 2020 15:16:37 GMT'}]
|
2020-07-16
|
[array(['Cao', 'Yang', ''], dtype=object)
array(['Xiao', 'Yonghui', ''], dtype=object)
array(['Takagi', 'Shun', ''], dtype=object)
array(['Xiong', 'Li', ''], dtype=object)
array(['Yoshikawa', 'Masatoshi', ''], dtype=object)
array(['Shen', 'Yilin', ''], dtype=object)
array(['Liu', 'Jinfei', ''], dtype=object)
array(['Jin', 'Hongxia', ''], dtype=object)
array(['Xu', 'Xiaofeng', ''], dtype=object)]
|
7,427 |
1204.1819
|
Nikos Zygouras
|
Kenneth S. Alexander and Nikos Zygouras
|
Subgaussian concentration and rates of convergence in directed polymers
|
Minor changes. Appears in Electronic Journal of Probability, 18,
2013, no. 5
|
Electronic Journal of Probability, 18, (2013), no. 5
|
10.1214/EJP.v18-2005
| null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider directed random polymers in $(d+1)$ dimensions with nearly gamma
i.i.d. disorder. We study the partition function $Z_{N,\omega}$ and establish
exponential concentration of $\log Z_{N,\omega}$ about its mean on the
subgaussian scale $\sqrt{N/\log N}$ . This is used to show that $\mathbb{E}[
\log Z_{N,\omega}]$ differs from $N$ times the free energy by an amount which
is also subgaussian (i.e. $o(\sqrt{N})$), specifically $O(\sqrt{\frac{N}{\log
N}}\log \log N)$.
|
[{'version': 'v1', 'created': 'Mon, 9 Apr 2012 07:47:06 GMT'}
{'version': 'v2', 'created': 'Sun, 24 Mar 2013 23:30:15 GMT'}]
|
2013-03-26
|
[array(['Alexander', 'Kenneth S.', ''], dtype=object)
array(['Zygouras', 'Nikos', ''], dtype=object)]
|
7,428 |
2001.09933
|
Mario Nicola Mazziotta
|
M. N. Mazziotta, P. De La Torre Luque, L. Di Venere, A. Fass\`o, A.
Ferrari, F. Loparco, P. R. Sala, D.Serini
|
Cosmic-ray interactions with the Sun using the FLUKA code
|
Update version of the top left plot on Fig. 12 due to a wrong scale
factor used in the script which produced the plot
|
Phys. Rev. D 101, 083011 (2020)
|
10.1103/PhysRevD.101.083011
| null |
astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The interactions of cosmic rays with the solar atmosphere produce secondary
particle which can reach the Earth. In this work we present a comprehensive
calculation of the yields of secondary particles as gamma-rays, electrons,
positrons, neutrons and neutrinos performed with the FLUKA code. We also
estimate the intensity at the Sun and the fluxes at the Earth of these
secondary particles by folding their yields with the intensities of cosmic rays
impinging on the solar surface. The results are sensitive on the assumptions on
the magnetic field nearby the Sun and to the cosmic-ray transport in the
magnetic field in the inner solar system.
|
[{'version': 'v1', 'created': 'Mon, 27 Jan 2020 17:55:11 GMT'}
{'version': 'v2', 'created': 'Tue, 3 Mar 2020 10:15:07 GMT'}
{'version': 'v3', 'created': 'Thu, 1 Oct 2020 13:31:57 GMT'}]
|
2020-10-02
|
[array(['Mazziotta', 'M. N.', ''], dtype=object)
array(['Luque', 'P. De La Torre', ''], dtype=object)
array(['Di Venere', 'L.', ''], dtype=object)
array(['Fassò', 'A.', ''], dtype=object)
array(['Ferrari', 'A.', ''], dtype=object)
array(['Loparco', 'F.', ''], dtype=object)
array(['Sala', 'P. R.', ''], dtype=object)
array(['Serini', 'D.', ''], dtype=object)]
|
7,429 |
1901.00404
|
M Pavana
|
M. Pavana, Ramya M Anche, G. C. Anupama, A. N. Ramaprakash, G.
Selvakumar
|
Optical spectroscopic and polarization properties of 2011 outburst of
the recurrent nova T Pyxidis
|
14 pages, 12 figures, accepted in A&A
|
A&A 622, A126 (2019)
|
10.1051/0004-6361/201833728
| null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the spectroscopic and ionized structural evolution of T Pyx during
its 2011 outburst, and also study the variation in degree of polarization
during its early phase. Optical spectroscopic data of this system obtained from
day 1.28--2415.62 since discovery, and optical, broadband imaging polarimetric
observations obtained from day 1.36--29.33 during the early phases of the
outburst are used in the study. The physical conditions and the geometry of the
ionized structure of the nova ejecta has been modelled for a few epochs using
the photo-ionization code, CLOUDY in 1D and pyCloudy in 3D. The spectral
evolution of the nova ejecta during its 2011 outburst is similar to that of the
previous outbursts. The variation in the line profiles is seen very clearly in
the early stages due to good coverage during this period. The line profiles
vary from P-Cygni (narrower, deeper and sharper) to emission profiles which are
broader and structured, which later become narrower and sharper in the late
post-outburst phase. The average ejected mass is estimated to be $7.03\,
\times\, 10^{-6}\, M_{\odot}$. The ionized structure of the ejecta is found to
be a bipolar conical structure with equatorial rings, with a low inclination
angle of $14.75^\circ\, \pm\, 0.65^\circ$.
|
[{'version': 'v1', 'created': 'Wed, 2 Jan 2019 14:57:06 GMT'}]
|
2019-02-13
|
[array(['Pavana', 'M.', ''], dtype=object)
array(['Anche', 'Ramya M', ''], dtype=object)
array(['Anupama', 'G. C.', ''], dtype=object)
array(['Ramaprakash', 'A. N.', ''], dtype=object)
array(['Selvakumar', 'G.', ''], dtype=object)]
|
7,430 |
1205.3696
|
Johannes Borregaard M. Sc.
|
J. Borregaard, J. B. Brask and A. S. S{\o}rensen
|
Hybrid Quantum Repeater Protocol With Fast Local Processing
|
14 pages, 7 figures
|
Phys. Rev. A 86, 012330 (2012)
|
10.1103/PhysRevA.86.012330
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We propose a hybrid quantum repeater protocol combining the advantages of
continuous and discrete variables. The repeater is based on the previous work
of Brask et al. [Phys. Rev. Lett. 105, 160501 (2010)] but we present two ways
of improving this protocol. In the previous protocol entangled single-photon
states are produced and grown into superpositions of coherent states, known as
two-mode cat states. The entanglement is then distributed using homodyne
detection. To improve the protocol, we replace the time-consuming non-local
growth of cat states with local growth of single-mode cat states, eliminating
the need for classical communication during growth. Entanglement is generated
in subsequent connection processes. Furthermore the growth procedure is
optimized. We review the main elements of the original protocol and present the
two modifications. Finally the two protocols are compared and the modified
protocol is shown to perform significantly better than the original protocol.
|
[{'version': 'v1', 'created': 'Wed, 16 May 2012 14:58:44 GMT'}
{'version': 'v2', 'created': 'Mon, 2 Jul 2012 08:21:28 GMT'}
{'version': 'v3', 'created': 'Fri, 6 Jul 2012 11:25:41 GMT'}]
|
2013-06-13
|
[array(['Borregaard', 'J.', ''], dtype=object)
array(['Brask', 'J. B.', ''], dtype=object)
array(['Sørensen', 'A. S.', ''], dtype=object)]
|
7,431 |
hep-ph/9903303
|
Serguey Petcov
|
M. Maris and S. T. Petcov
|
Enhancing the Seasonal Variation Effect in the Case of the Vacuum
Oscillation Solution of the Solar Neutrino Problem
|
18 pages latex; the text includes 3 postscript figures and 3 tables
|
Phys.Lett. B457 (1999) 319-333
|
10.1016/S0370-2693(99)00543-2
|
SISSA 13/99/EP, February 1999
|
hep-ph astro-ph
| null |
We study in detail the threshold energy dependence of the seasonal variation
effect in the energy integrated solar neutrino signal of the Super-Kamiokande
detector in the case of the $\nu_{e}\leftrightarrow \nu_{\mu,\tau}$ vacuum
oscillation (VO) solution of the solar neutrino problem. We show, in
particular, that for the values of $\Delta m^2$ and $\sin^22\theta$ from the VO
solution region, the predicted time and threshold e^- energy ($T_{e,Th}$)
dependence of the event rate factorize to a high degree of accuracy. As a
consequence, the VO generated seasonal variation asymmetry is given by the
product of an time-independent function of $T_{e,Th}$ and the standard
geometrical asymmetry. For any given $\Delta m^2$ and $\sin^22\theta$ from the
VO solution region there exists at least one value of $T_{e,Th}$ from the
interval (5 - 11) MeV, for which the seasonal variation effect in the solar
neutrino sample of events, formed by recoil electrons with kinetic energy
$T_{e} \geq T_{e,Th}$, is either maximal or very close to the maximal; it can
vary dramatically with $T_{e,Th}$. Measuring the seasonal effect in each one of
a large number of samples corresponding to different values of $T_{e,Th}$ from
the indicated interval, say, to $T_{e,Th} = 5; 6; 7;...; 11 MeV$, provides a
very effective test of the VO solution. Predictions for the magnitude of the
seasonal effect in such samples are given for a large set of representative
values of $\Delta m^2$ and $\sin^22\theta$ from the VO solution region.
|
[{'version': 'v1', 'created': 'Wed, 10 Mar 1999 03:48:18 GMT'}]
|
2009-10-31
|
[array(['Maris', 'M.', ''], dtype=object)
array(['Petcov', 'S. T.', ''], dtype=object)]
|
7,432 |
2005.08300
|
Luca Mariot
|
Luca Mariot and Martina Saletta and Alberto Leporati and Luca Manzoni
|
Exploring Semi-bent Boolean Functions Arising from Cellular Automata
|
12 pages, 1 figure, submitted to ACRI 2020
| null | null | null |
nlin.CG cs.CR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Semi-bent Boolean functions are interesting from a cryptographic standpoint,
since they possess several desirable properties such as having a low and flat
Walsh spectrum, which is useful to resist linear cryptanalysis. In this paper,
we consider the search of semi-bent functions through a construction based on
cellular automata (CA). In particular, the construction defines a Boolean
function by computing the XOR of all output cells in the CA. Since the
resulting Boolean functions have the same algebraic degree of the CA local
rule, we devise a combinatorial algorithm to enumerate all quadratic Boolean
functions. We then apply this algorithm to exhaustively explore the space of
quadratic rules of up to 6 variables, selecting only those for which our
CA-based construction always yields semi-bent functions of up to 20 variables.
Finally, we filter the obtained rules with respect to their balancedness, and
remark that the semi-bent functions generated through our construction by the
remaining rules have a constant number of linear structures.
|
[{'version': 'v1', 'created': 'Sun, 17 May 2020 17:03:28 GMT'}]
|
2020-05-19
|
[array(['Mariot', 'Luca', ''], dtype=object)
array(['Saletta', 'Martina', ''], dtype=object)
array(['Leporati', 'Alberto', ''], dtype=object)
array(['Manzoni', 'Luca', ''], dtype=object)]
|
7,433 |
0704.2230
|
Petr Horava
|
Petr Horava, Cynthia A. Keeler
|
Strings on AdS_2 and the High-Energy Limit of Noncritical M-Theory
|
31 pages; references added
|
JHEP 0706:031,2007
|
10.1088/1126-6708/2007/06/031
| null |
hep-th
| null |
Noncritical M-theory in 2+1 dimensions has been defined as a double-scaling
limit of a nonrelativistic Fermi liquid on a flat two-dimensional plane. Here
we study this noncritical M-theory in the limit of high energies, analogous to
the \alpha'\to\infty limit of string theory. In the related case of
two-dimensional Type 0A strings, it has been argued that the conformal
\alpha'\to\infty limit leads to AdS_2 with a propagating fermion whose mass is
set by the value of the RR flux. Here we provide evidence that in the
high-energy limit, the natural ground state of noncritical M-theory similarly
describes the AdS_2\times S^1 spacetime, with a massless propagating fermion.
We argue that the spacetime effective theory in this background is captured by
a topological higher-spin extension of conformal Chern-Simons gravity in 2+1
dimensions, consistently coupled to a massless Dirac field. Intriguingly, the
two-dimensional plane populated by the original nonrelativistic fermions is
essentially the twistor space associated with the symmetry group of the
AdS_2\times S^1 spacetime; thus, at least in the high-energy limit, noncritical
M-theory can be nonperturbatively described as a "Fermi liquid on twistor
space."
|
[{'version': 'v1', 'created': 'Wed, 18 Apr 2007 18:40:40 GMT'}
{'version': 'v2', 'created': 'Mon, 28 May 2007 21:14:36 GMT'}]
|
2009-11-13
|
[array(['Horava', 'Petr', ''], dtype=object)
array(['Keeler', 'Cynthia A.', ''], dtype=object)]
|
7,434 |
1606.07683
|
Laura Hattam
|
Laura Hattam and Danica Vukadinovic Greetham
|
Green neighbourhoods in low voltage networks: measuring impact of
electric vehicles and photovoltaics on load profiles
| null | null | null | null |
physics.soc-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the near future various types of low-carbon technologies (LCTs) are
expected to be widely employed throughout the United Kingdom. However, the
effect that these technologies will have at a household level on the existing
low voltage (LV) network is still an area of extensive research. We propose an
agent based model that estimates the growth of LCTs within local
neighbourhoods, where social influence is imposed. Real-life data from a LV
network is used that comprises of many socially diverse neighbourhoods. Both
electric vehicle uptake and the combined scenario of electric vehicle and
photovoltaic adoption are investigated with this data. A probabilistic approach
is outlined, which determines lower and upper bounds for the model response at
every neighbourhood. This technique is used to assess the implications of
modifying model assumptions and introducing new model features. Moreover, we
discuss how the calculation of these bounds can inform future network planning
decisions.
|
[{'version': 'v1', 'created': 'Fri, 24 Jun 2016 13:50:42 GMT'}]
|
2016-06-27
|
[array(['Hattam', 'Laura', ''], dtype=object)
array(['Greetham', 'Danica Vukadinovic', ''], dtype=object)]
|
7,435 |
1709.01621
|
Umberto Hryniewicz
|
Alberto Abbondandolo, Barney Bramham, Umberto L. Hryniewicz, Pedro A.
S. Salom\~ao
|
Contact forms with large systolic ratio in dimension three
|
17 pages, 2 figures
|
Ann. Sc. Norm. Super. Pisa Cl. Sci. (5) 19 (2019), 1561-1582
| null | null |
math.SG math.DG math.DS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The systolic ratio of a contact form on a closed three-manifold is the
quotient of the square of the shortest period of closed Reeb orbits by the
contact volume. We show that every co-orientable contact structure on any
closed three-manifold is defined by a contact form with arbitrarily large
systolic ratio. This shows that the many existing systolic inequalities in
Finsler and Riemannian geometry are not purely contact-topological phenomena.
|
[{'version': 'v1', 'created': 'Tue, 5 Sep 2017 23:13:32 GMT'}]
|
2021-03-05
|
[array(['Abbondandolo', 'Alberto', ''], dtype=object)
array(['Bramham', 'Barney', ''], dtype=object)
array(['Hryniewicz', 'Umberto L.', ''], dtype=object)
array(['Salomão', 'Pedro A. S.', ''], dtype=object)]
|
7,436 |
2106.00747
|
Nikolaos Makris
|
Nikolaos Makris and Matthias Bucher
|
On MOSFET Threshold Voltage Extraction Over the Full Range of Drain
Voltage Based on Gm/ID
|
4 pages,2 figures, submitted
| null | null | null |
physics.app-ph cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A MOSFET threshold voltage extraction method covering the entire range of
drain-to-source voltage, from linear to saturation modes, is presented.
Transconductance-to-current ratio is obtained from MOSFET transfer
characteristics measured at low to high drain voltage. Based on the
charge-based modeling approach, a near-constant value of threshold voltage is
obtained over the whole range of drain voltage for ideal, long-channel MOSFETs.
The method reveals a distinct increase of threshold voltage versus drain
voltage for halo-implanted MOSFETs in the low drain voltage range. The method
benefits from moderate inversion operation, where high-field effects, such as
vertical field mobility reduction and series resistances, are minimal. The
present method is applicable over the full range of drain voltage, is fully
analytical, easy to be implemented, and provides more consistent results when
compared to existing methods.
|
[{'version': 'v1', 'created': 'Tue, 1 Jun 2021 19:50:54 GMT'}]
|
2021-06-03
|
[array(['Makris', 'Nikolaos', ''], dtype=object)
array(['Bucher', 'Matthias', ''], dtype=object)]
|
7,437 |
2205.08159
|
Prabhav Singh
|
Prabhav Singh, Ridam Srivastava, K.P.S. Rana, Vineet Kumar
|
SEMI-FND: Stacked Ensemble Based Multimodal Inference For Faster Fake
News Detection
| null | null |
10.1016/j.eswa.2022.119302
| null |
cs.CL cs.AI
|
http://creativecommons.org/licenses/by/4.0/
|
Fake News Detection (FND) is an essential field in natural language
processing that aims to identify and check the truthfulness of major claims in
a news article to decide the news veracity. FND finds its uses in preventing
social, political and national damage caused due to misrepresentation of facts
which may harm a certain section of society. Further, with the explosive rise
in fake news dissemination over social media, including images and text, it has
become imperative to identify fake news faster and more accurately. To solve
this problem, this work investigates a novel multimodal stacked ensemble-based
approach (SEMIFND) to fake news detection. Focus is also kept on ensuring
faster performance with fewer parameters. Moreover, to improve multimodal
performance, a deep unimodal analysis is done on the image modality to identify
NasNet Mobile as the most appropriate model for the task. For text, an ensemble
of BERT and ELECTRA is used. The approach was evaluated on two datasets:
Twitter MediaEval and Weibo Corpus. The suggested framework offered accuracies
of 85.80% and 86.83% on the Twitter and Weibo datasets respectively. These
reported metrics are found to be superior when compared to similar recent
works. Further, we also report a reduction in the number of parameters used in
training when compared to recent relevant works. SEMI-FND offers an overall
parameter reduction of at least 20% with unimodal parametric reduction on text
being 60%. Therefore, based on the investigations presented, it is concluded
that the application of a stacked ensembling significantly improves FND over
other approaches while also improving speed.
|
[{'version': 'v1', 'created': 'Tue, 17 May 2022 07:51:55 GMT'}]
|
2023-02-28
|
[array(['Singh', 'Prabhav', ''], dtype=object)
array(['Srivastava', 'Ridam', ''], dtype=object)
array(['Rana', 'K. P. S.', ''], dtype=object)
array(['Kumar', 'Vineet', ''], dtype=object)]
|
7,438 |
1307.6235
|
Anindya Kumar Biswas
|
Anindya Kumar Biswas
|
Graphical law beneath each written natural language
|
107 pages, 35 figures, all tables given. all Bethe-Peierls curves for
$\gamma$ not equal to four replaced
| null | null | null |
physics.gen-ph cs.CL
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study twenty four written natural languages. We draw in the log scale,
number of words starting with a letter vs rank of the letter, both normalised.
We find that all the graphs are of the similar type. The graphs are
tantalisingly closer to the curves of reduced magnetisation vs reduced
temperature for magnetic materials. We make a weak conjecture that a curve of
magnetisation underlies a written natural language.
|
[{'version': 'v1', 'created': 'Thu, 18 Jul 2013 11:03:14 GMT'}
{'version': 'v2', 'created': 'Fri, 26 Jul 2013 17:39:34 GMT'}
{'version': 'v3', 'created': 'Tue, 13 Aug 2013 04:16:23 GMT'}
{'version': 'v4', 'created': 'Tue, 8 Oct 2013 11:33:38 GMT'}
{'version': 'v5', 'created': 'Tue, 21 Jan 2020 06:54:26 GMT'}]
|
2020-01-22
|
[array(['Biswas', 'Anindya Kumar', ''], dtype=object)]
|
7,439 |
gr-qc/0311030
|
Bahram Mashhoon
|
Bahram Mashhoon
|
Gravitoelectromagnetism: A Brief Review
|
15 pages, no figures; v2: slightly improved version published as the
third chapter of The Measurement of Gravitomagnetism: A Challenging
Enterprise, edited by L. Iorio (Nova Science, New York, 2007), pp. 29-39
| null | null | null |
gr-qc astro-ph
| null |
The main theoretical aspects of gravitoelectromagnetism ("GEM") are
presented. Two basic approaches to this subject are described and the role of
the gravitational Larmor theorem is emphasized. Some of the consequences of GEM
are briefly mentioned.
|
[{'version': 'v1', 'created': 'Sat, 8 Nov 2003 19:39:33 GMT'}
{'version': 'v2', 'created': 'Thu, 17 Apr 2008 18:32:41 GMT'}]
|
2008-04-17
|
[array(['Mashhoon', 'Bahram', ''], dtype=object)]
|
7,440 |
2107.07461
|
Dmitry Kulyabov
|
Migran N. Gevorkyan and Anna V. Korolkova and Dmitry S. Kulyabov
|
Using a template engine as a computer algebra tool
|
in English; in Russian
| null |
10.1134/S0361768821010047
| null |
math.NA cs.MS cs.NA cs.SC
|
http://creativecommons.org/licenses/by/4.0/
|
In research problems that involve the use of numerical methods for solving
systems of ordinary differential equations (ODEs), it is often required to
select the most efficient method for a particular problem. To solve a Cauchy
problem for a system of ODEs, Runge-Kutta methods (explicit or implicit ones,
with or without step-size control, etc.) are employed. In that case, it is
required to search through many implementations of the numerical method and
select coefficients or other parameters of its numerical scheme. This paper
proposes a library and scripts for automated generation of routine functions in
the Julia programming language for a set of numerical schemes of Runge-Kutta
methods. For symbolic manipulations, we use a template substitution tool. The
proposed approach to automated generation of program code allows us to use a
single template for editing, instead of modifying each individual function to
be compared. On the one hand, this provides universality in the implementation
of a numerical scheme and, on the other hand, makes it possible to minimize the
number of errors in the process of modifying the compared implementations of
the numerical method. We consider Runge-Kutta methods without step-size
control, embedded methods with step-size control, and Rosenbrock methods with
step-size control. The program codes for the numerical schemes, which are
generated automatically using the proposed library, are tested by numerical
solution of several well-known problems.
|
[{'version': 'v1', 'created': 'Thu, 15 Jul 2021 17:04:02 GMT'}]
|
2021-07-16
|
[array(['Gevorkyan', 'Migran N.', ''], dtype=object)
array(['Korolkova', 'Anna V.', ''], dtype=object)
array(['Kulyabov', 'Dmitry S.', ''], dtype=object)]
|
7,441 |
2103.12031
|
Jonathan Kerridge
|
Jon Kerridge and Neil Urquhart
|
Groovy Parallel Patterns: A Process oriented Parallelization Library
|
34 pages, 14 Figures, 10 Tables, 21 Code Listings, 52 References
| null | null | null |
cs.DC
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
A novel parallel patterns library, Groovy Parallel Patterns, is presented
which, from the outset, has been designed to exploit more general process
parallelism than the usual data and task parallel architectures. The library
executes on a standard Java Virtual Machine. The library provides a collection
of processes that can be plugged together to form a variety of parallel
architectures and is intrinsically its own DSL. A network of processes is
guaranteed to be deadlock and livelock free and terminate correctly and this is
proved by the use of formal methods. Error capture and a basic logging
mechanism have been incorporated. The library enables effective refinement of
solutions between process networks which can be checked also using formal
methods. A library user is only required to create the required methods as
pieces of sequential code, typically taken from extant sequential solutions,
which can then be invoked by the processes as required. The utility of the
library is demonstrated by several examples including; Monte Carlo Methods,
Concordance, Jacobi solutions, N-body problems and Mandelbrot, which is
implemented on both a multicore processor and a workstation cluster. The
examples are analysed for speedup and efficiency, which show good and
consistent performance improvement up to the number of available processor
cores and workstations.
|
[{'version': 'v1', 'created': 'Mon, 22 Mar 2021 17:33:08 GMT'}]
|
2021-03-23
|
[array(['Kerridge', 'Jon', ''], dtype=object)
array(['Urquhart', 'Neil', ''], dtype=object)]
|
7,442 |
0707.3225
|
Harvey B. Meyer
|
Harvey B. Meyer, John W. Negele
|
Gluon contributions to the pion mass and light cone momentum fraction
|
4 pages, 2 figures
|
Phys.Rev.D77:037501,2008
|
10.1103/PhysRevD.77.037501
|
MIT-CTP 3840
|
hep-lat hep-ph
| null |
We calculate the matrix elements of the gluonic contributions to the
energy-momentum tensor for a pion of mass 600 < Mpi < 1100 MeV in quenched
lattice QCD. We find that gluons contribute (37 +/- 8 +/- 12)% of the pion's
light cone momentum. The bare matrix elements corresponding to the trace
anomaly contribution to the pion mass are also obtained. The discretizations of
the energy-momentum tensor we use have other promising applications, ranging
from calculating the origin of hadron spin to QCD thermodynamics.
|
[{'version': 'v1', 'created': 'Sat, 21 Jul 2007 20:40:05 GMT'}]
|
2008-11-26
|
[array(['Meyer', 'Harvey B.', ''], dtype=object)
array(['Negele', 'John W.', ''], dtype=object)]
|
7,443 |
2005.05431
|
Neil Getty
|
Neil Getty, Thomas Brettin, Dong Jin, Rick Stevens, Fangfang Xia
|
Deep Medical Image Analysis with Representation Learning and
Neuromorphic Computing
|
8 pages, 7 figures
| null | null | null |
eess.IV cs.CV cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We explore three representative lines of research and demonstrate the utility
of our methods on a classification benchmark of brain cancer MRI data. First,
we present a capsule network that explicitly learns a representation robust to
rotation and affine transformation. This model requires less training data and
outperforms both the original convolutional baseline and a previous capsule
network implementation. Second, we leverage the latest domain adaptation
techniques to achieve a new state-of-the-art accuracy. Our experiments show
that non-medical images can be used to improve model performance. Finally, we
design a spiking neural network trained on the Intel Loihi neuromorphic chip
(Fig. 1 shows an inference snapshot). This model consumes much lower power
while achieving reasonable accuracy given model reduction. We posit that more
research in this direction combining hardware and learning advancements will
power future medical imaging (on-device AI, few-shot prediction, adaptive
scanning).
|
[{'version': 'v1', 'created': 'Mon, 11 May 2020 20:56:37 GMT'}]
|
2020-05-13
|
[array(['Getty', 'Neil', ''], dtype=object)
array(['Brettin', 'Thomas', ''], dtype=object)
array(['Jin', 'Dong', ''], dtype=object)
array(['Stevens', 'Rick', ''], dtype=object)
array(['Xia', 'Fangfang', ''], dtype=object)]
|
7,444 |
1801.09293
|
Qian Xiao
|
Qian Xiao, Lin Wang, Hongquan Xu
|
Application of Kriging Models for a Drug Combination Experiment on Lung
Cancer
|
Submitted to "Statistics in Medicine"
|
Statistics in Medicine, Volume 38, Issue 2, 2019, Pages 236-246
|
10.1002/sim.7971
| null |
stat.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Combinatorial drugs have been widely applied in disease treatment, especially
chemotherapy for cancer, due to its improved efficacy and reduced toxicity
compared with individual drugs. The study of combinatorial drugs requires
efficient experimental designs and proper follow-up statistical modelling
techniques. Linear and non-linear models are often used in the response surface
modelling for such experiments. We propose the use of Kriging models to better
depict the response surfaces of combinatorial drugs and take into account the
measurement error. We further study how proper experimental designs can reduce
the required number of runs. We illustrate our method via a combinatorial drug
experiment on lung cancer. We demonstrate that only 27 runs are needed to
predict all 512 runs in the original experiment and achieve better precision
than existing analysis.
|
[{'version': 'v1', 'created': 'Sun, 28 Jan 2018 21:40:22 GMT'}]
|
2018-12-31
|
[array(['Xiao', 'Qian', ''], dtype=object)
array(['Wang', 'Lin', ''], dtype=object)
array(['Xu', 'Hongquan', ''], dtype=object)]
|
7,445 |
1804.02415
|
Soyoun Son
|
Soyoun Son
|
Lattice Boltzmann modeling of two-phase flow in macroporous media with
application to porous asphalt
|
2016. Doctoral Thesis, ETH Zurich(published)
| null | null | null |
physics.flu-dyn cond-mat.soft physics.comp-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Porous asphalt (PA) is an open-graded porous material with a porosity of 20%,
allowing fast drainage of rain and improving driving and acoustic conditions.
However, the high porosity leads to significant contact with water resulting in
a shorter life expectancy. To improve the durability and performance of PA, the
distribution of water and its residence time have to be understood which
entails capturing diverse multiphase phenomena. For these reasons, a numerical
study is performed to analyze in detail the fluid transport mechanisms at play
in PA, towards estimating the liquid distribution inside the nanometer- to
millimeter-sized pore structure of PA. In this study, LBM is used for a
detailed analysis of multiphase flow in complex porous domains. A multiphase
single component LBM method, with parallel computing, has been developed
different phase separation phenomena on surfaces and in porous media. The LBM
is validated with Laplace law and dynamic capillary intrusion test and then the
capillary uptake simulations are validated with analytical solutions, varying
contact angles, tube shapes and sizes. Pore meniscus and corner arc menisci are
studied in both square and triangular tubes. In order to address the behavior
of rain droplets on a PA surface, run-off, wetting, pinning and evaporation of
single droplet are considered in terms of effects of variation of contact
angle, surface wetting heterogeneity and structure. Finally, gravity-driven
drainage in PA is studied with LBM in accordance with temporal evolution of
water distribution by comparing with experimental data, showing good agreement.
This study allows a better understanding of the diverse multiphase flow
phenomena occurring in complex porous media, namely PA, at pore scale in
saturated and unsaturated states, providing information towards improving the
durability and performance of PA.
|
[{'version': 'v1', 'created': 'Fri, 6 Apr 2018 18:24:22 GMT'}]
|
2018-04-10
|
[array(['Son', 'Soyoun', ''], dtype=object)]
|
7,446 |
1804.02611
|
Yuan Zhong
|
Yuan Zhong, Rong-Zhen Guo, Chun-E Fu and Yu-Xiao Liu
|
Kinks in higher derivative scalar field theory
|
14 pages, 5 figures
|
Phys. Lett. B 782 (2018) 346-352
|
10.1016/j.physletb.2018.05.048
| null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study static kink configurations in a type of two-dimensional higher
derivative scalar field theory whose Lagrangian contains second-order
derivative terms of the field. The linear fluctuation around arbitrary static
kink solutions is analyzed. We find that, the linear spectrum can be described
by a supersymmetric quantum mechanics problem, and the criteria for stable
static solutions can be given analytically. We also construct a superpotential
formalism for finding analytical static kink solutions. Using this formalism we
first reproduce some existed solutions and then offer a new solution. The
properties of our solution is studied and compared without those preexisted. We
also show the possibility in constructing twinlike model in the higher
derivative theory, and give the consistency conditions for twinlike models
corresponding to the canonical scalar field theory.
|
[{'version': 'v1', 'created': 'Sun, 8 Apr 2018 01:46:04 GMT'}]
|
2018-11-14
|
[array(['Zhong', 'Yuan', ''], dtype=object)
array(['Guo', 'Rong-Zhen', ''], dtype=object)
array(['Fu', 'Chun-E', ''], dtype=object)
array(['Liu', 'Yu-Xiao', ''], dtype=object)]
|
7,447 |
0910.2492
|
Yun Wang
|
Yun Wang
|
Distance Measurements from Supernovae and Dark Energy Constraints
|
12 pages including 12 figures. Slightly expanded version accepted by
PRD
|
Phys. Rev. D 80, 123525 (2009)
|
10.1103/PhysRevD.80.123525
| null |
astro-ph.CO gr-qc hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Constraints on dark energy from current observational data are sensitive to
how distances are measured from Type Ia supernova (SN Ia) data. We find that
flux-averaging of SNe Ia can be used to test the presence of unknown systematic
uncertainties, and yield more robust distance measurements from SNe Ia. We have
applied this approach to the nearby + SDSS +ESSENCE +SNLS +HST set of 288 SNe
Ia, and the ``Constitution''of set 397 SNe Ia. Combining the SN Ia data with
CMB data from WMAP five year observations, the Sloan Digital Sky Survey baryon
acoustic oscillation measurements, the data of 69 gammay-ray bursts, and the
Hubble constant measurement from the HST project SHOES, we measure the dark
energy density function X(z)=\rho_X(z)/\rho_X(0) as a free function of redshift
(assumed to be a constant at z>1 or z>1.5). Without flux-averaging of SNe Ia,
the combined data using the ``Constitution'' set of SNe Ia seem to indicate a
deviation from a cosmological constant at ~95% confidence level at 0< z <0.8;
they are consistent with a cosmological constant at ~68% confidence level when
SNe Ia are flux-averaged. The combined data using the nearby +SDSS +ESSENCE
+SNLS +HST data set of SNe Ia are consistent with a cosmological constant at
68% confidence level with or without flux-averaging of SNe Ia, and give dark
energy constraints that are significantly more stringent than that using the
``Constitution'' set of SNe Ia. Assuming a flat universe, dark energy is
detected at >98% confidence level for z<= 0.75 using the combined data with 288
SNe Ia from nearby + SDSS+ ESSENCE +SNLS +HST, independent of the assumptions
about X(z>1). We quantify dark energy constraints without assuming a flat
universe using the dark energy Figure-of-Merit (FoM) for both $X(z)$ and a dark
energy equation-of-state linear in the cosmic scale factor.
|
[{'version': 'v1', 'created': 'Wed, 14 Oct 2009 15:43:40 GMT'}
{'version': 'v2', 'created': 'Tue, 10 Nov 2009 20:07:11 GMT'}]
|
2013-05-29
|
[array(['Wang', 'Yun', ''], dtype=object)]
|
7,448 |
1401.8274
|
Mikael Kuusela
|
Mikael Kuusela and Victor M. Panaretos
|
Empirical Bayes unfolding of elementary particle spectra at the Large
Hadron Collider
|
40 pages, 10 figures
| null | null | null |
stat.AP hep-ex physics.data-an stat.ME
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider the so-called unfolding problem in experimental high energy
physics, where the goal is to estimate the true spectrum of elementary
particles given observations distorted by measurement error due to the limited
resolution of a particle detector. This an important statistical inverse
problem arising in the analysis of data at the Large Hadron Collider at CERN.
Mathematically, the problem is formalized as one of estimating the intensity
function of an indirectly observed Poisson point process. Particle physicists
are particularly keen on unfolding methods that feature a principled way of
choosing the regularization strength and allow for the quantification of the
uncertainty inherent in the solution. Though there are many approaches that
have been considered by experimental physicists, it can be argued that few --
if any -- of these deal with these two key issues in a satisfactory manner. In
this paper, we propose to attack the unfolding problem within the framework of
empirical Bayes estimation: we consider Bayes estimators of the coefficients of
a basis expansion of the unknown intensity, using a regularizing prior; and
employ a Monte Carlo expectation-maximization algorithm to find the marginal
maximum likelihood estimate of the hyperparameter controlling the strength of
the regularization. Due to the data-driven choice of the hyperparameter,
credible intervals derived using the empirical Bayes posterior lose their
subjective Bayesian interpretation. Since the properties and meaning of such
intervals are poorly understood, we explore instead the use of bootstrap
resampling for constructing purely frequentist confidence bands for the true
intensity. The performance of the proposed methodology is demonstrated using
both simulations and real data from the Large Hadron Collider.
|
[{'version': 'v1', 'created': 'Fri, 31 Jan 2014 20:01:23 GMT'}]
|
2014-02-03
|
[array(['Kuusela', 'Mikael', ''], dtype=object)
array(['Panaretos', 'Victor M.', ''], dtype=object)]
|
7,449 |
1404.2783
|
Alexios Liakos
|
Alexios Liakos, Paolo Bonfini, Panagiotis Niarchos, Despina
Hatzidimitriou
|
Photometry and spectroscopy of the newly discovered eclipsing binary GSC
4589-2999
|
5 pages, 9 figures, 5 tables
|
2011, Astronomische Nachrichten, Vol.332, Issue 6, p.602
|
10.1002/asna.200911567
| null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
New CCD light curves of the recently detected eclipsing variable GSC
4589-2999 were obtained and analysed using the Wilson-Deninney code.
Spectroscopic observations of the system allowed the spectral classification of
the components and the determination of their radial velocities. The physical
properties and absolute parameters of the components and an updated ephemeris
of the system are given.
|
[{'version': 'v1', 'created': 'Thu, 10 Apr 2014 12:41:52 GMT'}]
|
2014-04-11
|
[array(['Liakos', 'Alexios', ''], dtype=object)
array(['Bonfini', 'Paolo', ''], dtype=object)
array(['Niarchos', 'Panagiotis', ''], dtype=object)
array(['Hatzidimitriou', 'Despina', ''], dtype=object)]
|
7,450 |
1209.1140
|
Lee Sawyer
|
D0 Collaboration
|
Measurement of the ratio of three-jet to two-jet cross sections in
pp-bar collisions at sqrt(s) = 1.96 TeV
|
submitted to Physics Letters B
| null |
10.1016/j.physletb.2013.01.048
|
FERMILAB-PUB-12-500-E
|
hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a measurement of the ratio of multijet cross sections in pp-bar
collisions at sqrt(s) = 1.96 TeV at the Fermilab Tevatron Collider. The
measurement is based on a data set corresponding to an integrated luminosity of
0.7 fb-1 collected with the D0 detector. The ratio of the inclusive three-jet
to two-jet cross sections, R3/2, has been measured as a function of the jet
transverse momenta. The data are compared to QCD predictions in different
approximations. Popular tunes of the PYTHIA event generator do not agree with
the data, while SHERPA provides a reasonable description of the data. A
perturbative QCD prediction in next-to-leading order in the strong coupling
constant, corrected for non-perturbative effects, gives a good description of
the data.
|
[{'version': 'v1', 'created': 'Wed, 5 Sep 2012 22:49:56 GMT'}]
|
2015-06-11
|
[array(['D0 Collaboration', '', ''], dtype=object)]
|
7,451 |
1402.1614
|
Mehdi Samadieh
|
Mehdi samadieh and Mohammad Gholami
|
New LDPC Codes Using Permutation Matrices with Higher Girth than QC-LDPC
Codes Constructed by Fossorier
|
This paper has been withdrawn by the authors. Some conclusions in the
submitted paper are wrong and the authors decided to withdraw the paper
| null | null | null |
cs.IT cs.DM math.CO math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the literatures, it is well-known that Fossorier code has the girth among
LDPC codes. In this paper, we introduce a new class of low-density parity-check
(LDPC) codes, with higher girth than other previous constructed codes.
Especially we proposed a new method to construct LDPC codes using non fixed
shift permutation matrices and full based matrices with higher girth than codes
constructed by Fossorier.
|
[{'version': 'v1', 'created': 'Fri, 7 Feb 2014 12:20:31 GMT'}
{'version': 'v2', 'created': 'Fri, 21 Feb 2014 05:58:16 GMT'}
{'version': 'v3', 'created': 'Wed, 26 Feb 2014 16:52:03 GMT'}]
|
2016-11-25
|
[array(['samadieh', 'Mehdi', ''], dtype=object)
array(['Gholami', 'Mohammad', ''], dtype=object)]
|
7,452 |
1307.5754
|
Zirong Ye
|
Z. R. Ye, Y. Zhang, B. P. Xie, and D. L. Feng
|
Angle-resolved photoemission spectroscopy study on iron-based
superconductors
|
13 pages, 17 figures, published on the "TOPICAL REVIEW: Iron-based
high temperature superconductors" in Chinese Physics B Vol. 22, No. 8 (2013)
087407
| null |
10.1088/1674-1056/22/8/087407
| null |
cond-mat.supr-con cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Angle-resolved photoemission spectroscopy (ARPES) has played an important
role in determining the band structure and the superconducting gap structure of
iron-based superconductors. Here from the ARPES perspective, we briefly review
the main results from our group in the recent years on the iron-based
superconductors and their parent compounds, and depict our current
understanding on the antiferromagnetism and superconductivity in these
materials.
|
[{'version': 'v1', 'created': 'Mon, 22 Jul 2013 16:07:04 GMT'}
{'version': 'v2', 'created': 'Wed, 24 Jul 2013 00:20:11 GMT'}
{'version': 'v3', 'created': 'Tue, 13 Aug 2013 05:41:29 GMT'}]
|
2015-06-16
|
[array(['Ye', 'Z. R.', ''], dtype=object)
array(['Zhang', 'Y.', ''], dtype=object)
array(['Xie', 'B. P.', ''], dtype=object)
array(['Feng', 'D. L.', ''], dtype=object)]
|
7,453 |
1012.2967
|
Alberto Mart\'inez Torres
|
A. Mart\'inez Torres, E. Oset
|
An alternative explanation for the $\Theta(1540)$ pentaquark peak
|
Proceeding for the CHIRAL 10 workshop, Valencia (Spain), June 21-24
2010
| null |
10.1063/1.3542013
|
YITP-10-83
|
nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We have studied the $\gamma d \to K^+ K^- n p$ reaction in which the LEPS
collaboration found a signal in the $K^+ n$ invariant mass for the claimed
$\Theta(1540)$ pentaquark peak. Our study reveal that the procedure used at
LEPS to reconstruct the $K^+n$ invariant mass generates an artificial strength
in the $\Theta(1540)$ region and that the LEPS collaboration underestimated the
background in that region, such that the signal observed for the $\Theta(1540)$
is compatible with a fluctuation of $2\sigma$ over the calculated background.
|
[{'version': 'v1', 'created': 'Tue, 14 Dec 2010 09:07:36 GMT'}]
|
2015-05-20
|
[array(['Torres', 'A. Martínez', ''], dtype=object)
array(['Oset', 'E.', ''], dtype=object)]
|
7,454 |
1806.08455
|
Ashkan Aghdai
|
Ashkan Aghdai, Cing-Yu Chu, Yang Xu, David H. Dai, Jun Xu, H. Jonathan
Chao
|
Spotlight: Scalable Transport Layer Load Balancing for Data Center
Networks
| null | null | null | null |
cs.NI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Load Balancing plays a vital role in modern data centers to distribute
traffic among instances of network functions or services. State-of-the-art load
balancers such as Silkroad dispatch traffic obliviously without considering the
real-time utilization of service instances and therefore can lead to uneven
load distribution and suboptimal performance.
In this paper, we design and implement Spotlight, a scalable and distributed
load balancing architecture that maintains connection-to-instance mapping
consistency at the edge of data center networks. Spotlight uses a new stateful
flow dispatcher which periodically polls instances' load and dispatches
incoming connections to instances in proportion to their available capacity.
Our design utilizes distributed control plane and in-band flow dispatching and
thus scales horizontally in data center networks. Through extensive flow-level
simulation and packet-level experiments on a testbed, we demonstrate that
compared to existing methods Spotlight distributes the traffic more efficiently
and has near-optimum performance in terms of overall service utilization.
Moreover, Spotlight is not sensitive to utilization polling interval and
therefore can be implemented with low polling frequency to reduce the amount of
control traffic. Indeed, Spotlight achieves the mentioned performance
improvements using O(100ms) polling interval.
|
[{'version': 'v1', 'created': 'Thu, 21 Jun 2018 23:36:28 GMT'}
{'version': 'v2', 'created': 'Fri, 23 Nov 2018 23:58:44 GMT'}
{'version': 'v3', 'created': 'Sat, 23 Feb 2019 19:47:16 GMT'}]
|
2019-02-26
|
[array(['Aghdai', 'Ashkan', ''], dtype=object)
array(['Chu', 'Cing-Yu', ''], dtype=object)
array(['Xu', 'Yang', ''], dtype=object)
array(['Dai', 'David H.', ''], dtype=object)
array(['Xu', 'Jun', ''], dtype=object)
array(['Chao', 'H. Jonathan', ''], dtype=object)]
|
7,455 |
2006.07165
|
Yu Cai
|
Yu Cai, Baichu Yu, Pooja Jayachandran, Nicolas Brunner, Valerio
Scarani, Jean-Daniel Bancal
|
Entanglement for any definition of two subsystems
|
Main: 5 pages, 2 figures; Appendix: 5 pages and 1 figure
|
Phys. Rev. A 103, 052432 (2021)
|
10.1103/PhysRevA.103.052432
| null |
quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The notion of entanglement of quantum states is usually defined with respect
to a fixed bipartition. Indeed, a global basis change can always map an
entangled state to a separable one. The situation is however different when
considering a set of states. In this work we define the notion of an
"absolutely entangled set" of quantum states: for any possible choice of global
basis, at least one of the states in the set is entangled. Hence, for all
bipartitions, i.e. any possible definition of the subsystems, the set features
entanglement. We present a minimum example of this phenomenon, with a set of
four states in $\mathbb{C}^4 = \mathbb{C}^2 \otimes \mathbb{C}^2$. Moreover, we
propose a quantitative measure for absolute set entanglement. To lower-bound
this quantity, we develop a method based on polynomial optimization to perform
convex optimization over unitaries, which is of independent interest.
|
[{'version': 'v1', 'created': 'Fri, 12 Jun 2020 13:23:13 GMT'}
{'version': 'v2', 'created': 'Wed, 11 Nov 2020 15:14:12 GMT'}]
|
2021-06-02
|
[array(['Cai', 'Yu', ''], dtype=object)
array(['Yu', 'Baichu', ''], dtype=object)
array(['Jayachandran', 'Pooja', ''], dtype=object)
array(['Brunner', 'Nicolas', ''], dtype=object)
array(['Scarani', 'Valerio', ''], dtype=object)
array(['Bancal', 'Jean-Daniel', ''], dtype=object)]
|
7,456 |
2106.12776
|
Anand Sahadevan S
|
Rosly Boy Lyngdoh, Anand S Sahadevan, Touseef Ahmad, Pradyuman Singh
Rathore, Manoj Mishra, Praveen Kumar Gupta and Arundhati Misra
|
AVHYAS: A Free and Open Source QGIS Plugin for Advanced Hyperspectral
Image Analysis
|
Accepted at IEEE International Conference on Emerging Techniques in
Computational Intelligence, 2021
| null | null | null |
eess.IV cs.CV
|
http://creativecommons.org/licenses/by/4.0/
|
Advanced Hyperspectral Data Analysis Software (AVHYAS) plugin is a python3
based quantum GIS (QGIS) plugin designed to process and analyse hyperspectral
(Hx) images. It is developed to guarantee full usage of present and future Hx
airborne or spaceborne sensors and provides access to advanced algorithms for
Hx data processing. The software is freely available and offers a range of
basic and advanced tools such as atmospheric correction (for airborne AVIRISNG
image), standard processing tools as well as powerful machine learning and Deep
Learning interfaces for Hx data analysis.
|
[{'version': 'v1', 'created': 'Thu, 24 Jun 2021 05:55:15 GMT'}]
|
2021-06-25
|
[array(['Lyngdoh', 'Rosly Boy', ''], dtype=object)
array(['Sahadevan', 'Anand S', ''], dtype=object)
array(['Ahmad', 'Touseef', ''], dtype=object)
array(['Rathore', 'Pradyuman Singh', ''], dtype=object)
array(['Mishra', 'Manoj', ''], dtype=object)
array(['Gupta', 'Praveen Kumar', ''], dtype=object)
array(['Misra', 'Arundhati', ''], dtype=object)]
|
7,457 |
2303.06046
|
Harrison LaBollita
|
Harrison LaBollita and Alexander Hampel and Jonathan Karp and Antia S.
Botana and Andrew J. Millis
|
Conductivity of infinite-layer NdNiO$_{2}$ as a probe of spectator bands
|
8 pages, 6 figures
| null |
10.1103/PhysRevB.107.205155
| null |
cond-mat.str-el
|
http://creativecommons.org/licenses/by/4.0/
|
Using a density-functional theory plus dynamical mean-field theory
methodology, we compute the many-body electronic structure and optical
conductivity of NdNiO$_{2}$ under the influence of large scattering rates on
the Nd($5d$) bands and including dynamical interactions on the Nd($5d$)
orbitals with shifts of the Nd-Ni $d$-level energy difference. We find a robust
conducting pathway in the out-of-plane direction arising from strong
hybridization between the Ni-$d_{z^2}$ and Nd($5d$) orbitals. This pathway can
be ``short-circuited'' if this hybridization is suppressed through large
electronic scattering rates but is not reduced to zero even by very large
beyond-DFT shifts of the Nd-Ni $d$-level energy splitting. The computed
in-plane conductivity for NdNiO$_{2}$ predicts the material to be a ``good
metal'' in contrast to experiments indicating the material is a ``bad metal''
or ``weak insulator''. Our results motivate future experiments measuring the
$c$-axis resistivity as a proxy for the spectator bands and suggests the
essential difference between the infinite-layer nickelates and the cuprates is
dimensionality of their electronic structures.
|
[{'version': 'v1', 'created': 'Fri, 10 Mar 2023 16:37:03 GMT'}]
|
2023-06-14
|
[array(['LaBollita', 'Harrison', ''], dtype=object)
array(['Hampel', 'Alexander', ''], dtype=object)
array(['Karp', 'Jonathan', ''], dtype=object)
array(['Botana', 'Antia S.', ''], dtype=object)
array(['Millis', 'Andrew J.', ''], dtype=object)]
|
7,458 |
1603.04018
|
Alexander Vasil'ev
|
Evgeniy N. Myslovets, Alexander F. Vasil'ev
|
On finite $ca$-$\mathfrak F$ groups and their applications
| null | null | null | null |
math.GR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $\mathfrak F$ be a class of groups. A group $G$ is called $ca$-$\mathfrak
F$-group if its every non-abelian chief factor is simple and $H/K
\leftthreetimes C_G(H/K) \in \mathfrak F$ for every abelian chief factor $H/K$
of $G$. In this paper, we investigate the structure of a finite $ca$-$\mathfrak
F$-group. Properties of mutually permutable products of finite $ca$-$\mathfrak
F$-groups are studied.
|
[{'version': 'v1', 'created': 'Sun, 13 Mar 2016 11:16:56 GMT'}]
|
2016-03-15
|
[array(['Myslovets', 'Evgeniy N.', ''], dtype=object)
array(["Vasil'ev", 'Alexander F.', ''], dtype=object)]
|
7,459 |
1710.04600
|
Deepak Gupta
|
Deepak Gupta, Pabitra Lenka, Harsimran Bedi, Asif Ekbal, Pushpak
Bhattacharyya
|
Auto Analysis of Customer Feedback using CNN and GRU Network
| null | null | null | null |
cs.CL
|
http://creativecommons.org/licenses/by/4.0/
|
Analyzing customer feedback is the best way to channelize the data into new
marketing strategies that benefit entrepreneurs as well as customers. Therefore
an automated system which can analyze the customer behavior is in great demand.
Users may write feedbacks in any language, and hence mining appropriate
information often becomes intractable. Especially in a traditional
feature-based supervised model, it is difficult to build a generic system as
one has to understand the concerned language for finding the relevant features.
In order to overcome this, we propose deep Convolutional Neural Network (CNN)
and Recurrent Neural Network (RNN) based approaches that do not require
handcrafting of features. We evaluate these techniques for analyzing customer
feedback sentences in four languages, namely English, French, Japanese and
Spanish. Our empirical analysis shows that our models perform well in all the
four languages on the setups of IJCNLP Shared Task on Customer Feedback
Analysis. Our model achieved the second rank in French, with an accuracy of
71.75% and third ranks for all the other languages.
|
[{'version': 'v1', 'created': 'Thu, 12 Oct 2017 16:33:01 GMT'}]
|
2017-10-13
|
[array(['Gupta', 'Deepak', ''], dtype=object)
array(['Lenka', 'Pabitra', ''], dtype=object)
array(['Bedi', 'Harsimran', ''], dtype=object)
array(['Ekbal', 'Asif', ''], dtype=object)
array(['Bhattacharyya', 'Pushpak', ''], dtype=object)]
|
7,460 |
cond-mat/0205269
|
Vladimir Dobrosavljevic
|
Denis Dalidovich and V. Dobrosavljevic
|
Landau theory of the Fermi-liquid to electron glass transition
|
5 pages, 1 figure
|
Phys. Rev. B (Rapid Comm.) 66, 081107 (2002).
|
10.1103/PhysRevB.66.081107
| null |
cond-mat.str-el cond-mat.dis-nn
| null |
A lattice model of spinless interacting electrons is used to formulate the
Landau theory of the Fermi liquid to electron glass quantum phase transition.
We demonstrate that the presence of additional random site energies does not
affect the character of the transition, once the replica symmetry breaking is
considered self-consistently at the mean-field level. Inside the glass phase,
the low temperature conductivity assumes a non-Fermi liquid ~ T^{3/2} form, in
agreement with recent experiments.
|
[{'version': 'v1', 'created': 'Mon, 13 May 2002 18:50:26 GMT'}]
|
2009-11-07
|
[array(['Dalidovich', 'Denis', ''], dtype=object)
array(['Dobrosavljevic', 'V.', ''], dtype=object)]
|
7,461 |
astro-ph/0006389
|
Weipeng Lin
|
W.P. Lin (1,2,3), G. Boerner (1) and H.J. Mo (1) ((1)MPA, (2)Beijing
Observatory, (3)Beijing Astrophysics Centre)
|
Low Redshift QSO Lyman alpha Absorption Line Systems Associated with
Galaxies
|
23 pages, 9 postscript figures; references updated, minor change in
section 1
|
Mon.Not.Roy.Astron.Soc. 319 (2000) 517
|
10.1046/j.1365-8711.2000.03860.x
| null |
astro-ph
| null |
In this paper we present Monte-Carlo simulations of Lyman alpha absorption
systems which originate in galactic haloes, galaxy discs and dark matter (DM)
satellites around big central haloes. It is found that for strong Lyman alpha
absorption lines galactic haloes and satellites can explain ~20% and 40% of the
line number density of QSO absorption line key project respectively. If big
galaxies indeed possess such large numbers of DM satellites and they possess
gas, these satellites may play an important role for strong Lyman alpha lines.
However the predicted number density of Lyman-limit systems by satellites is
\~0.1 (per unit redshift), which is four times smaller than that by halo
clouds. Including galactic haloes, satellites and HI discs of spirals, the
predicted number density of strong lines can be as much as 60% of the HST
result. The models can also predict all of the observed Lyman-limit systems.
The average covering factor within 250 kpc/h is estimated to be ~0.36. And the
effective absorption radius of a galaxy is estimated to be ~150 kpc/h. The
models predict W_r propto rho^{-0.5} L_B^{0.15} (1+z)^{-0.5}. We study the
selection effects of selection criteria similar to the imaging and
spectroscopic surveys. We simulate mock observations through known QSO
lines-of-sight and find that selection effects can statistically tighten the
dependence of line width on projected distance. (abridged)
|
[{'version': 'v1', 'created': 'Tue, 27 Jun 2000 15:23:33 GMT'}
{'version': 'v2', 'created': 'Fri, 14 Jul 2000 13:57:59 GMT'}]
|
2009-10-31
|
[array(['Lin', 'W. P.', ''], dtype=object)
array(['Boerner', 'G.', ''], dtype=object)
array(['Mo', 'H. J.', ''], dtype=object)]
|
7,462 |
1006.2505
|
Khristo N. Boyadzhiev
|
Khristo N. Boyadzhiev
|
Series with Hermite Polynomials and Harmonic Numbers
|
This paper was not published in a journal in this form. It became
part of the joint paper "Series with Hermite polynomials and applications"
which was published with a coauthor Ayhan Dil. The new paper is now on
arxiv.org and the present one becomes redundant. It should be removed. In
fact, it is being replaced by Series with Hermite Polynomials and
Applications arXiv:1710.00687
| null | null | null |
math.NT math.CA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper is now part of the new paper "Series with Hermite polynomials and
applications" arXiv:1710.00687.
|
[{'version': 'v1', 'created': 'Sun, 13 Jun 2010 02:38:44 GMT'}
{'version': 'v2', 'created': 'Tue, 3 Oct 2017 20:56:07 GMT'}]
|
2017-10-05
|
[array(['Boyadzhiev', 'Khristo N.', ''], dtype=object)]
|
7,463 |
2306.00098
|
Christopher Schwarze
|
Christopher R. Schwarze, David S. Simon, Alexander V. Sergienko
|
Enhanced-sensitivity interferometry with phase-sensitive unbiased
multiports
| null |
Physical Review A 107, 052615 (2023)
|
10.1103/PhysRevA.107.052615
| null |
quant-ph physics.optics
|
http://creativecommons.org/licenses/by/4.0/
|
Here we introduce interferometric devices by combining optical feedback
(cavities) with unbiased multiports, which unlike traditional beam dividers,
allow light to reflect back out of the port from which it originated. By
replacing the traditional, directionally-biased beam-splitter in a Michelson
interferometer with an unbiased multiport, the functional dependence of the
scattering amplitudes changes. As a result, the derivative of transmittance
with respect to an external phase perturbation can be made substantially large.
This significantly enhances the resolution of phase measurement, and allows the
phase response curves to be altered in real time by tuning an
externally-controllable phase shift.
|
[{'version': 'v1', 'created': 'Wed, 31 May 2023 18:18:02 GMT'}]
|
2023-06-05
|
[array(['Schwarze', 'Christopher R.', ''], dtype=object)
array(['Simon', 'David S.', ''], dtype=object)
array(['Sergienko', 'Alexander V.', ''], dtype=object)]
|
7,464 |
1305.0099
|
Filippo Santambrogio
|
Qi-Rui Li, Filippo Santambrogio (LM-Orsay), Xu-Jian Wang
|
Regularity in Monge's mass transfer problem
| null | null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we study the regularity of optimal mappings in Monge's mass
transfer problem. Using the approximation to Monge's cost function given by the
Euclidean distance c(x,y)=dist(x,y) through the costs
c_\eps(x,y)=(\eps^2+dist(x,y)^2)^{1/2}, we consider the optimal mappings T_\eps
for these costs, and we prove that the eigenvalues of the Jacobian matrix
DT_\eps, which are all positive, are locally uniformly bounded. By an example
we prove that T_\eps is in general not uniformly Lipschitz continuous as
\eps-0, even if the mass distributions are positive and smooth, and the domains
are c-convex.
|
[{'version': 'v1', 'created': 'Wed, 1 May 2013 06:11:33 GMT'}]
|
2013-05-02
|
[array(['Li', 'Qi-Rui', '', 'LM-Orsay'], dtype=object)
array(['Santambrogio', 'Filippo', '', 'LM-Orsay'], dtype=object)
array(['Wang', 'Xu-Jian', ''], dtype=object)]
|
7,465 |
1703.10778
|
Yuri Prokhorov
|
Yu. Prokhorov
|
On the number of singular points of factorial terminal Fano threefolds
|
6pages, LaTeX
|
Math. Notes, 2017, 101, 1068-1073
|
10.1134/S0001434617050364
| null |
math.AG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We obtain upper bounds on the number of singular points of factorial terminal
Fano threefolds.
|
[{'version': 'v1', 'created': 'Fri, 31 Mar 2017 07:42:33 GMT'}]
|
2017-08-02
|
[array(['Prokhorov', 'Yu.', ''], dtype=object)]
|
7,466 |
hep-th/9110007
|
Peter Bouwknegt
|
P. Bouwknegt, J. McCarthy, and K. Pilch
|
Some aspects of free field resolutions in 2D CFT with application to the
quantum Drinfeld-Sokolov reduction
|
15 pages
| null | null | null |
hep-th
| null |
We review some aspects of the free field approach to two-dimensional
conformal field theories. Specifically, we discuss the construction of free
field resolutions for the integrable highest weight modules of untwisted affine
Kac-Moody algebras, and extend the construction to a certain class of
admissible highest weight modules. Using these, we construct resolutions of the
completely degenerate highest weight modules of W-algebras by means of the
quantum Drinfeld-Sokolov reduction. As a corollary we derive character formulae
for these degenerate highest weight modules.
|
[{'version': 'v1', 'created': 'Wed, 2 Oct 1991 09:23:30 GMT'}]
|
2007-05-23
|
[array(['Bouwknegt', 'P.', ''], dtype=object)
array(['McCarthy', 'J.', ''], dtype=object)
array(['Pilch', 'K.', ''], dtype=object)]
|
7,467 |
1412.5923
|
Nigel Byott
|
Nigel P. Byott
|
Solubility Criteria for Hopf-Galois Structures
| null | null | null | null |
math.RA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $L/K$ be a finite Galois extension of fields with group $\Gamma$.
Associated to each Hopf-Galois structure on $L/K$ is a group $G$ of the same
order as the Galois group $\Gamma$. The type of the Hopf-Galois structure is by
definition the isomorphism type of $G$. We investigate the extent to which
general properties of either of the groups $\Gamma$ and $G$ constrain those of
the other. Specifically, we show that if $G$ is nilpotent then $\Gamma$ is
soluble, and that if $\Gamma$ is abelian then $G$ is soluble. The proof of the
latter result depends on the classification of finite simple groups. In
contrast to these results, we give some examples where the groups $\Gamma$ and
$G$ have different composition factors. In particular, we show that a soluble
extension may admit a Hopf-Galois structure of insoluble type.
|
[{'version': 'v1', 'created': 'Thu, 18 Dec 2014 16:18:15 GMT'}]
|
2014-12-19
|
[array(['Byott', 'Nigel P.', ''], dtype=object)]
|
7,468 |
1910.01171
|
Badih Assaf
|
G. Krizman, T. Schumann, S. Tchoumakov, B.A. Assaf, S. Stemmer, L.A.
de Vaulchier, Y. Guldner
|
Determination of the crystal field splitting energy in Cd3As2 using
magnetooptics
|
Accepted Phys Rev B
| null |
10.1103/PhysRevB.100.155205
| null |
cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Symmetry considerations are of extreme importance to the topological
properties of crystals. A crystal field splitting {\delta} yields Dirac nodes
near the Brillouin zone center in Cd3As2, but its value has yet to be
determined with precision. We study the band structure of Cd3As2 using
magnetooptical infrared spectroscopy measurements on epilayers with low carrier
density grown by molecular beam epitaxy. By combining angular dependent
cyclotron resonance with Landau level spectroscopy measurements in the Faraday
geometry, we determine that {\delta} is positive and equal to 15+/-5 meV in
Cd3As2. Our results lead to a more accurate knowledge of the details of the
band structure of this Dirac semimetal such as the position its Dirac nodes in
momentum space and their splitting into Weyl nodes under a magnetic field.
|
[{'version': 'v1', 'created': 'Wed, 2 Oct 2019 19:11:14 GMT'}]
|
2020-01-08
|
[array(['Krizman', 'G.', ''], dtype=object)
array(['Schumann', 'T.', ''], dtype=object)
array(['Tchoumakov', 'S.', ''], dtype=object)
array(['Assaf', 'B. A.', ''], dtype=object)
array(['Stemmer', 'S.', ''], dtype=object)
array(['de Vaulchier', 'L. A.', ''], dtype=object)
array(['Guldner', 'Y.', ''], dtype=object)]
|
7,469 |
astro-ph/0412498
|
John Johnson
|
John Asher Johnson, Joshua N. Winn, Francesca Rampazzi, Cesare
Barbieri, Hiroyuki Mito, Ken-ichi Tarusawa, Milcho Tsvetkov, Ana Borisova,
Helmut Meusinger
|
The History of the Mysterious Eclipses of KH 15D II. Asiago, Kiso, Kitt
Peak, Mt. Wilson, Palomar, Tautenburg and Rozhen Observatories, 1954-97
|
10 pages, 3 figures, 3 tables, accepted for publication in
Astronomical Journal
| null |
10.1086/428597
| null |
astro-ph
| null |
The unusual pre-main-sequence binary star named KH 15D undergoes remarkably
deep and long-lasting periodic eclipses. Some clues about the reason for these
eclipses have come from the observed evolution of the system's light curve over
the last century. Here we present UBVRI photometry of KH 15D based on
photographic plates from various observatories, ranging in time from 1954 to
1997. The system has been variable at the ~1 mag level since at least 1965.
There is no evidence for color variations, with a typical limit of Delta(B-V) <
0.2 mag. We confirm some previously published results that were based on a
smaller sample of plates: from approximately 1965 to 1990, the total flux was
modulated with the 48-day orbital period of the binary, but the maximum flux
was larger, the fractional variations were smaller, and the phase of minimum
flux was shifted by almost a half-cycle relative to the modern light curve. All
these results are consistent with the recently proposed theory that KH 15D is
being occulted by an inclined, precessing, circumbinary ring.
|
[{'version': 'v1', 'created': 'Fri, 17 Dec 2004 23:32:49 GMT'}]
|
2015-06-24
|
[array(['Johnson', 'John Asher', ''], dtype=object)
array(['Winn', 'Joshua N.', ''], dtype=object)
array(['Rampazzi', 'Francesca', ''], dtype=object)
array(['Barbieri', 'Cesare', ''], dtype=object)
array(['Mito', 'Hiroyuki', ''], dtype=object)
array(['Tarusawa', 'Ken-ichi', ''], dtype=object)
array(['Tsvetkov', 'Milcho', ''], dtype=object)
array(['Borisova', 'Ana', ''], dtype=object)
array(['Meusinger', 'Helmut', ''], dtype=object)]
|
7,470 |
2107.01289
|
Kevin Leung
|
Kevin Leung, Noah B. Schorr, Matthew Mayer, Timothy N. Lambert, Y.
Shirley Meng, and K.L. Harrison
|
Edge-Propagation Discharge Mechanism in CFx Batteries -- a First
Principles and Experimental Study
|
31 pages, 7 figures
|
Chemistry of Materials vol. 33, pp. 1760-1770 (2021)
|
10.1021/acs.chemmater.0c04676
| null |
cond-mat.mtrl-sci physics.chem-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Graphite fluoride (CFx) cathodes coupled with lithium anodes yield one of the
highest theoretical energy densities (>860 Wh/g) among primary batteries. In
practice, the observed discharge voltage (~2.5 V) is significantly lower than
thermodynamic limits (>4.5 V), the discharge rate is low, and so far Li/CFx has
only been used in primary batteries. Understanding the discharge mechanism at
atomic length scales will improve practical CFx energy density, rate
capability, and rechargeability. So far, purely experimental techniques have
not identified the correct discharge mechanism or explained the discharge
voltage. We apply Density Functional Theory calculations to demonstrate that a
CFx-edge propagation discharge mechanism based on lithium insertion at the CF/C
boundary in partially discharged CFx exhibits a voltage range of 2.5 to 2.9 V
-- depending on whether solvent molecules are involved. The voltages and
solvent dependence agrees with our discharge and galvanostatic intermittent
titration technique measurements. The predicted discharge kinetics are
consistent with CFx operations. Finally, we predict Li/CFx rechargeability
under the application of high potentials, along a charging pathway different
from that of discharge. Our work represents a general, quasi-kinetic framework
to understand the discharge of conversion cathodes, circumventing the widely
used phase diagram approach which most likely does not apply to Li/CFx because
equilibrium conditions are not attained in this system.
|
[{'version': 'v1', 'created': 'Fri, 2 Jul 2021 21:50:08 GMT'}]
|
2021-07-06
|
[array(['Leung', 'Kevin', ''], dtype=object)
array(['Schorr', 'Noah B.', ''], dtype=object)
array(['Mayer', 'Matthew', ''], dtype=object)
array(['Lambert', 'Timothy N.', ''], dtype=object)
array(['Meng', 'Y. Shirley', ''], dtype=object)
array(['Harrison', 'K. L.', ''], dtype=object)]
|
7,471 |
2008.07361
|
Luis John
|
Luis H. John, Jan A. Kors, Jenna M. Reps, Patrick B. Ryan, Peter R.
Rijnbeek
|
How little data do we need for patient-level prediction?
| null | null | null | null |
stat.AP cs.LG stat.ME stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Objective: Provide guidance on sample size considerations for developing
predictive models by empirically establishing the adequate sample size, which
balances the competing objectives of improving model performance and reducing
model complexity as well as computational requirements.
Materials and Methods: We empirically assess the effect of sample size on
prediction performance and model complexity by generating learning curves for
81 prediction problems in three large observational health databases, requiring
training of 17,248 prediction models. The adequate sample size was defined as
the sample size for which the performance of a model equalled the maximum model
performance minus a small threshold value.
Results: The adequate sample size achieves a median reduction of the number
of observations between 9.5% and 78.5% for threshold values between 0.001 and
0.02. The median reduction of the number of predictors in the models at the
adequate sample size varied between 8.6% and 68.3%, respectively.
Discussion: Based on our results a conservative, yet significant, reduction
in sample size and model complexity can be estimated for future prediction
work. Though, if a researcher is willing to generate a learning curve a much
larger reduction of the model complexity may be possible as suggested by a
large outcome-dependent variability.
Conclusion: Our results suggest that in most cases only a fraction of the
available data was sufficient to produce a model close to the performance of
one developed on the full data set, but with a substantially reduced model
complexity.
|
[{'version': 'v1', 'created': 'Fri, 14 Aug 2020 11:00:13 GMT'}]
|
2020-08-18
|
[array(['John', 'Luis H.', ''], dtype=object)
array(['Kors', 'Jan A.', ''], dtype=object)
array(['Reps', 'Jenna M.', ''], dtype=object)
array(['Ryan', 'Patrick B.', ''], dtype=object)
array(['Rijnbeek', 'Peter R.', ''], dtype=object)]
|
7,472 |
2006.06240
|
Yi Wei
|
Yi Wei, Ming-Min Zhao, Min-Jian Zhao and Ming Lei
|
A PDD Decoder for Binary Linear Codes With Neural Check Polytope
Projection
|
This pape has been accepted for publication in IEEE wireless
communications letters
| null | null | null |
eess.SP cs.IT cs.LG math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Linear Programming (LP) is an important decoding technique for binary linear
codes. However, the advantages of LP decoding, such as low error floor and
strong theoretical guarantee, etc., come at the cost of high computational
complexity and poor performance at the low signal-to-noise ratio (SNR) region.
In this letter, we adopt the penalty dual decomposition (PDD) framework and
propose a PDD algorithm to address the fundamental polytope based maximum
likelihood (ML) decoding problem. Furthermore, we propose to integrate machine
learning techniques into the most time-consuming part of the PDD decoding
algorithm, i.e., check polytope projection (CPP). Inspired by the fact that a
multi-layer perception (MLP) can theoretically approximate any nonlinear
mapping function, we present a specially designed neural CPP (NCPP) algorithm
to decrease the decoding latency. Simulation results demonstrate the
effectiveness of the proposed algorithms.
|
[{'version': 'v1', 'created': 'Thu, 11 Jun 2020 07:57:15 GMT'}]
|
2020-06-16
|
[array(['Wei', 'Yi', ''], dtype=object)
array(['Zhao', 'Ming-Min', ''], dtype=object)
array(['Zhao', 'Min-Jian', ''], dtype=object)
array(['Lei', 'Ming', ''], dtype=object)]
|
7,473 |
2012.09992
|
Sarah Gibson
|
S. E. Gibson, A. Malanushenko, G. de Toma, S. Tomczyk, K. Reeves, H.
Tian, Z. Yang, B. Chen, G. Fleishman, D. Gary, G. Nita, V. M. Pillet, S.
White, U. B\k{a}k-St\k{e}\'slicka, K. Dalmasse, T. Kucera, L. A. Rachmeler,
N. E. Raouafi and J. Zhao
|
Untangling the global coronal magnetic field with multiwavelength
observations
|
Helio2050 white paper
| null | null | null |
astro-ph.SR
|
http://creativecommons.org/licenses/by/4.0/
|
Magnetism defines the complex and dynamic solar corona. Coronal mass
ejections (CMEs) are thought to be caused by stresses, twists, and tangles in
coronal magnetic fields that build up energy and ultimately erupt, hurling
plasma into interplanetary space. Even the ever-present solar wind possesses a
three-dimensional morphology shaped by the global coronal magnetic field,
forming geoeffective corotating interaction regions. CME evolution and the
structure of the solar wind depend intimately on the coronal magnetic field, so
comprehensive observations of the global magnetothermal atmosphere are crucial
both for scientific progress and space weather predictions. Although some
advances have been made in measuring coronal magnetic fields locally, synoptic
measurements of the global coronal magnetic field are not yet available.
We conclude that a key goal for 2050 should be comprehensive, ongoing 3D
synoptic maps of the global coronal magnetic field. This will require the
construction of new telescopes, ground and space-based, to obtain
complementary, multiwavelength observations sensitive to the coronal magnetic
field. It will also require development of inversion frameworks capable of
incorporating multi-wavelength data, and forward analysis tools and simulation
testbeds to prioritize and establish observational requirements on the proposed
telescopes.
|
[{'version': 'v1', 'created': 'Fri, 18 Dec 2020 00:42:39 GMT'}]
|
2020-12-21
|
[array(['Gibson', 'S. E.', ''], dtype=object)
array(['Malanushenko', 'A.', ''], dtype=object)
array(['de Toma', 'G.', ''], dtype=object)
array(['Tomczyk', 'S.', ''], dtype=object)
array(['Reeves', 'K.', ''], dtype=object)
array(['Tian', 'H.', ''], dtype=object)
array(['Yang', 'Z.', ''], dtype=object)
array(['Chen', 'B.', ''], dtype=object)
array(['Fleishman', 'G.', ''], dtype=object)
array(['Gary', 'D.', ''], dtype=object)
array(['Nita', 'G.', ''], dtype=object)
array(['Pillet', 'V. M.', ''], dtype=object)
array(['White', 'S.', ''], dtype=object)
array(['Bąk-Stęślicka', 'U.', ''], dtype=object)
array(['Dalmasse', 'K.', ''], dtype=object)
array(['Kucera', 'T.', ''], dtype=object)
array(['Rachmeler', 'L. A.', ''], dtype=object)
array(['Raouafi', 'N. E.', ''], dtype=object)
array(['Zhao', 'J.', ''], dtype=object)]
|
7,474 |
2304.10522
|
Pedro V. Silva
|
Claude Marion, Pedro V. Silva, Gareth Tracey
|
On the pseudovariety of groups $\mathbf{U} = \displaystyle\bigvee_{p \in
\mathbb{P}} {\bf Ab}(p) \ast {\bf Ab}(p-1)$
| null | null | null | null |
math.GR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove that the pseudovariety of finite groups ${\bf Ab}(p) \ast {\bf
Ab}(d)$ (where $p$ is a prime and $d$ divides $p-1$) is finitely generated and
compute its free objects. We consider also the pseudovariety of finite groups
$\mathbf{U} = \displaystyle\bigvee_{p \in \mathbb{P}} {\bf Ab}(p) \ast {\bf
Ab}(p-1)$, where $\mathbb{P}$ is the set of all primes. We show that
$\mathbf{U}$ consists of all finite supersolvable groups with elementary
abelian derived subgroup and abelian Sylow subgroups, being therefore
decidable. We prove that it is decidable whether or not a finitely generated
subgroup of a free group is closed or dense for the pro-$\mathbf{U}$ topology.
|
[{'version': 'v1', 'created': 'Thu, 20 Apr 2023 17:52:25 GMT'}
{'version': 'v2', 'created': 'Fri, 21 Apr 2023 15:05:59 GMT'}]
|
2023-04-24
|
[array(['Marion', 'Claude', ''], dtype=object)
array(['Silva', 'Pedro V.', ''], dtype=object)
array(['Tracey', 'Gareth', ''], dtype=object)]
|
7,475 |
2103.16575
|
H.F. Stevance
|
H. F. Stevance
|
Using Artificial Intelligence to Shed Light on the Star of Biscuits: The
Jaffa Cake
|
April fools astro-ph submission - The topic is a joke but the numbers
and the analysis are real
| null | null | null |
astro-ph.IM cs.AI cs.LG
|
http://creativecommons.org/licenses/by-sa/4.0/
|
Before Brexit, one of the greatest causes of arguments amongst British
families was the question of the nature of Jaffa Cakes. Some argue that their
size and host environment (the biscuit aisle) should make them a biscuit in
their own right. Others consider that their physical properties (e.g. they
harden rather than soften on becoming stale) suggest that they are in fact
cake. In order to finally put this debate to rest, we re-purpose technologies
used to classify transient events. We train two classifiers (a Random Forest
and a Support Vector Machine) on 100 recipes of traditional cakes and biscuits.
Our classifiers have 95 percent and 91 percent accuracy respectively. Finally
we feed two Jaffa Cake recipes to the algorithms and find that Jaffa Cakes are,
without a doubt, cakes. Finally, we suggest a new theory as to why some believe
Jaffa Cakes are biscuits.
|
[{'version': 'v1', 'created': 'Tue, 30 Mar 2021 18:00:02 GMT'}]
|
2021-04-01
|
[array(['Stevance', 'H. F.', ''], dtype=object)]
|
7,476 |
1307.5243
|
Gianluca Baio
|
Gianluca Baio
|
Bayesian models for cost-effectiveness analysis in the presence of
structural zero costs
|
15 pages, 2 figures
| null | null | null |
math.ST stat.TH
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Bayesian modelling for cost-effectiveness data has received much attention in
both the health economics and the statistical literature in recent years.
Cost-effectiveness data are characterised by a relatively complex structure of
relationships linking the suitable measure of clinical benefit (\eg QALYs) and
the associated costs. Simplifying assumptions, such as (bivariate) normality of
the underlying distributions are usually not granted, particularly for the cost
variable, which is characterised by markedly skewed distributions. In addition,
individual-level datasets are often characterised by the presence of structural
zeros in the cost variable.
Hurdle models can be used to account for the presence of excess zeros in a
distribution and have been applied in the context of cost data. We extend their
application to cost-effectiveness data, defining a full Bayesian model which
consists of a selection model for the subjects with null costs, a marginal
model for the costs and a conditional model for the measure of effectiveness
(conditionally on the observed costs). The model is presented using a working
example to describe its main features.
|
[{'version': 'v1', 'created': 'Fri, 19 Jul 2013 14:53:06 GMT'}]
|
2013-07-22
|
[array(['Baio', 'Gianluca', ''], dtype=object)]
|
7,477 |
1911.04537
|
Jonathan Cheng
|
Jonathan S. Cheng, Matteo Madonia, Andr\'es J. Aguirre Guzm\'an, Rudie
P. J. Kunnen
|
Laboratory Exploration of Heat Transfer Regimes in Rapidly Rotating
Turbulent Convection
|
14 pages, 7 figures
|
Phys. Rev. Fluids 5, 113501 (2020)
|
10.1103/PhysRevFluids.5.113501
| null |
physics.flu-dyn
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report heat transfer and temperature profile measurements in laboratory
experiments of rapidly rotating convection in water under intense thermal
forcing (Rayleigh number $Ra$ as high as $\sim 10^{13}$) and unprecedentedly
strong rotational influence (Ekman numbers $E$ as low as $10^{-8}$).
Measurements of the mid-height vertical temperature gradient connect
quantitatively to predictions from numerical models of asymptotically rapidly
rotating convection, separating various flow phenomenologies. Past the limit of
validity of the asymptotically-reduced models, we find novel behaviors in a
regime we refer to as rotationally-influenced turbulence, where rotation is
important but not as dominant as in the known geostrophic turbulence regime.
The temperature gradients collapse to a Rayleigh-number scaling as $Ra^{-0.2}$
in this new regime. It is bounded from above by a critical convective Rossby
number $Ro^*=0.06$ independent of domain aspect ratio $\Gamma$, clearly
distinguishing it from well-studied rotation-affected convection.
|
[{'version': 'v1', 'created': 'Mon, 11 Nov 2019 19:41:01 GMT'}
{'version': 'v2', 'created': 'Wed, 13 Nov 2019 02:39:04 GMT'}
{'version': 'v3', 'created': 'Sun, 1 Dec 2019 01:41:41 GMT'}
{'version': 'v4', 'created': 'Thu, 17 Sep 2020 22:26:14 GMT'}]
|
2020-11-11
|
[array(['Cheng', 'Jonathan S.', ''], dtype=object)
array(['Madonia', 'Matteo', ''], dtype=object)
array(['Guzmán', 'Andrés J. Aguirre', ''], dtype=object)
array(['Kunnen', 'Rudie P. J.', ''], dtype=object)]
|
7,478 |
2007.07306
|
Gedas Bertasius
|
Gedas Bertasius, Lorenzo Torresani
|
COBE: Contextualized Object Embeddings from Narrated Instructional Video
|
NeurIPS 2020
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Many objects in the real world undergo dramatic variations in visual
appearance. For example, a tomato may be red or green, sliced or chopped, fresh
or fried, liquid or solid. Training a single detector to accurately recognize
tomatoes in all these different states is challenging. On the other hand,
contextual cues (e.g., the presence of a knife, a cutting board, a strainer or
a pan) are often strongly indicative of how the object appears in the scene.
Recognizing such contextual cues is useful not only to improve the accuracy of
object detection or to determine the state of the object, but also to
understand its functional properties and to infer ongoing or upcoming
human-object interactions. A fully-supervised approach to recognizing object
states and their contexts in the real-world is unfortunately marred by the
long-tailed, open-ended distribution of the data, which would effectively
require massive amounts of annotations to capture the appearance of objects in
all their different forms. Instead of relying on manually-labeled data for this
task, we propose a new framework for learning Contextualized OBject Embeddings
(COBE) from automatically-transcribed narrations of instructional videos. We
leverage the semantic and compositional structure of language by training a
visual detector to predict a contextualized word embedding of the object and
its associated narration. This enables the learning of an object representation
where concepts relate according to a semantic language metric. Our experiments
show that our detector learns to predict a rich variety of contextual object
information, and that it is highly effective in the settings of few-shot and
zero-shot learning.
|
[{'version': 'v1', 'created': 'Tue, 14 Jul 2020 19:04:08 GMT'}
{'version': 'v2', 'created': 'Thu, 29 Oct 2020 21:52:34 GMT'}]
|
2020-11-02
|
[array(['Bertasius', 'Gedas', ''], dtype=object)
array(['Torresani', 'Lorenzo', ''], dtype=object)]
|
7,479 |
1412.7127
|
Sergei Gukov
|
Sergei Gukov
|
Surface Operators
|
37 pages, see also overview article arXiv:1412.7145
| null | null | null |
hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This is the seventh article in the collection of reviews "Exact results on
N=2 supersymmetric gauge theories", ed. J.Teschner. It discusses an interesting
class of observables localised on surfaces that attracts steadily growing
attention. In the correspondence to conformal field theory some of these
observables get related to a class of fields in two dimensions called
degenerate fields. These fields satisfy differential equations that can be used
to extract a lot of information on the correlation functions. Understanding the
origin of these differential equations within gauge theory may help explaining
the AGT-correspondence itself.
|
[{'version': 'v1', 'created': 'Mon, 22 Dec 2014 20:16:44 GMT'}]
|
2014-12-23
|
[array(['Gukov', 'Sergei', ''], dtype=object)]
|
7,480 |
2007.06971
|
Surajit Ray
|
Abhirup Banerjee, Surajit Ray, Bart Vorselaars, Joanne Kitson, Michail
Mamalakis, Simonne Weeks, Mark Baker, Louise S. Mackenzie
|
Use of Machine Learning and Artificial Intelligence to predict
SARS-CoV-2 infection from Full Blood Counts in a population
| null |
International Immunopharmacology, Volume 86,2020,106705,
|
10.1016/j.intimp.2020.106705
| null |
stat.AP q-bio.QM
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
Since December 2019 the novel coronavirus SARS-CoV-2 has been identified as
the cause of the pandemic COVID-19. Early symptoms overlap with other common
conditions such as common cold and Influenza, making early screening and
diagnosis are crucial goals for health practitioners. The aim of the study was
to use machine learning (ML), an artificial neural network (ANN) and a simple
statistical test to identify SARS-CoV-2 positive patients from full blood
counts without knowledge of symptoms or history of the individuals. The dataset
included in the analysis and training contains anonymized full blood counts
results from patients seen at the Hospital Israelita Albert Einstein, at S\~ao
Paulo, Brazil, and who had samples collected to perform the SARS-CoV-2 rt-PCR
test during a visit to the hospital. Patient data was anonymised by the
hospital, clinical data was standardized to have a mean of zero and a unit
standard deviation. This data was made public with the aim to allow researchers
to develop ways to enable the hospital to rapidly predict and potentially
identify SARS-CoV-2 positive patients. We find that with full blood counts
random forest, shallow learning and a flexible ANN model predict SARS-CoV-2
patients with high accuracy between populations on regular wards (AUC = 94-95%)
and those not admitted to hospital or in the community (AUC=80-86%). Here, AUC
is the Area Under the receiver operating characteristics Curve and a measure
for model performance. Moreover, a simple linear combination of 4 blood counts
can be used to have an AUC of 85% for patients within the community. The
normalised data of different blood parameters from SARS-CoV-2 positive patients
exhibit a decrease in platelets, leukocytes, eosinophils, basophils and
lymphocytes, and an increase in monocytes.
|
[{'version': 'v1', 'created': 'Tue, 14 Jul 2020 11:08:22 GMT'}
{'version': 'v2', 'created': 'Mon, 12 Apr 2021 10:22:36 GMT'}]
|
2021-04-13
|
[array(['Banerjee', 'Abhirup', ''], dtype=object)
array(['Ray', 'Surajit', ''], dtype=object)
array(['Vorselaars', 'Bart', ''], dtype=object)
array(['Kitson', 'Joanne', ''], dtype=object)
array(['Mamalakis', 'Michail', ''], dtype=object)
array(['Weeks', 'Simonne', ''], dtype=object)
array(['Baker', 'Mark', ''], dtype=object)
array(['Mackenzie', 'Louise S.', ''], dtype=object)]
|
7,481 |
astro-ph/0604352
|
Regner Trampedach
|
R. Trampedach, W. Dappen & V. A. Baturin
|
A synoptic comparison of the MHD and the OPAL equations of state
|
33 pages, 26 figures. Corrected discussion of Basu & Antia, 2004,
ApJ, 606, L85-L88
|
Astrophys.J. 646 (2006) 560-578
|
10.1086/504883
| null |
astro-ph
| null |
A detailed comparison is carried out between two popular equations of state
(EOS), the Mihalas-Hummer-Dappen (MHD) and the OPAL equations of state, which
have found widespread use in solar and stellar modeling during the past two
decades. They are parts of two independent efforts to recalculate stellar
opacities; the international Opacity Project (OP) and the Livermore-based OPAL
project. We examine the difference between the two equations of state in a
broad sense, over the whole applicable rho-T range, and for three different
chemical mixtures. Such a global comparison highlights both their differences
and their similarities.
We find that omitting a questionable hard-sphere correction, tau, to the
Coulomb interaction in the MHD formulation, greatly improves the agreement
between the MHD and OPAL EOS. We also find signs of differences that could stem
from quantum effects not yet included in the MHD EOS, and differences in the
ionization zones that are probably caused by differences in the mechanisms for
pressure ionization. Our analysis do not only give a clearer perception of the
limitations of each equation of state for astrophysical applications, but also
serve as guidance for future work on the physical issues behind the
differences. The outcome should be an improvement of both equations of state.
|
[{'version': 'v1', 'created': 'Mon, 17 Apr 2006 15:01:02 GMT'}
{'version': 'v2', 'created': 'Fri, 28 Apr 2006 14:56:22 GMT'}]
|
2009-11-11
|
[array(['Trampedach', 'R.', ''], dtype=object)
array(['Dappen', 'W.', ''], dtype=object)
array(['Baturin', 'V. A.', ''], dtype=object)]
|
7,482 |
2302.13436
|
Jane Hsieh
|
Jane Hsieh, Miranda Karger, Lucas Zagal, Haiyi Zhu
|
Navigating Multi-Stakeholder Incentives and Preferences: Co-Designing
Alternatives for the Future of Gig Worker Well-Being
| null | null |
10.1145/3563657.3595982
| null |
cs.HC
|
http://creativecommons.org/licenses/by/4.0/
|
Gig workers, and the products and services they provide, play an increasingly
ubiquitous role in our daily lives. But despite growing evidence suggesting
that worker well-being in gig economy platforms have become significant
societal problems, few studies have investigated possible solutions. We take a
stride in this direction by engaging workers, platform employees, and local
regulators in a series of speed dating workshops using storyboards based on
real-life situations to rapidly elicit stakeholder preferences for addressing
financial, physical, and social issues related to worker well-being. Our
results reveal that existing public and platformic infrastructures fall short
in providing workers with resources needed to perform gigs, surfacing a need
for multi-platform collaborations, technological innovations, as well as
changes in regulations, labor laws, and the public's perception of gig workers,
among others. Drawing from multi-stakeholder findings, we discuss these
implications for technology, policy, and service as well as avenues for
collaboration.
|
[{'version': 'v1', 'created': 'Sun, 26 Feb 2023 23:21:12 GMT'}
{'version': 'v2', 'created': 'Tue, 6 Jun 2023 03:48:13 GMT'}]
|
2023-06-07
|
[array(['Hsieh', 'Jane', ''], dtype=object)
array(['Karger', 'Miranda', ''], dtype=object)
array(['Zagal', 'Lucas', ''], dtype=object)
array(['Zhu', 'Haiyi', ''], dtype=object)]
|
7,483 |
astro-ph/0703165
|
Ismael Martinez-Delgado
|
Ismael Martinez-Delgado (IAC, Spain), Guillermo Tenorio-Tagle (INAOE,
Mexico), Casiana Munoz-Tunon (IAC, Spain), Alexei V. Moiseev (SAO, Russia)
and Luz M. Cairos (AIP, Germany)
|
3D Spectroscopy of Blue Compact Galaxies. Diagnostic Diagrams
|
15 pages, 3 figures, accepted for publication in The Astronomical
Journal
|
Astron.J.133:2892-2897,2007
|
10.1086/515438
| null |
astro-ph
| null |
Here we present the analysis of 3D spectroscopic data of three Blue Compact
Galaxies (Mrk324, Mrk370, and IIIZw102). Each of the more than 22500 spectra
obtained for each galaxy has been fitted by a single gaussian from which we
have inferred the velocity dispersion (sigma), the peak intensity (Ipeak), and
the central wavelength (lambda_c). The analysis shows that the sigma vs Ipeak
diagrams look remarkably similar to those obtained for giant extragalactic HII
regions. They all present a supersonic narrow horizontal band that extends
across all the range of intensities and that result from the massive nuclear
star-forming regions of every galaxy. The sigma vs Ipeak diagrams present also
several inclined bands of lower intensity and an even larger sigma, arising
from the large galactic volumes that surround the main central emitting knots.
Here we also show that the sigma vs lambda_c and lambda_c vs Ipeak diagrams,
are powerful tools able to unveil the presence of high and low mass stellar
clusters, and thus allow for the possibility of inferring the star formation
activity of distant galaxies, even if these are not spatially resolved.
|
[{'version': 'v1', 'created': 'Thu, 8 Mar 2007 20:42:09 GMT'}]
|
2008-11-26
|
[array(['Martinez-Delgado', 'Ismael', '', 'IAC, Spain'], dtype=object)
array(['Tenorio-Tagle', 'Guillermo', '', 'INAOE,\n Mexico'], dtype=object)
array(['Munoz-Tunon', 'Casiana', '', 'IAC, Spain'], dtype=object)
array(['Moiseev', 'Alexei V.', '', 'SAO, Russia'], dtype=object)
array(['Cairos', 'Luz M.', '', 'AIP, Germany'], dtype=object)]
|
7,484 |
cond-mat/0502506
|
Larissa Niebergall
|
V.S. Stepanyuk, L. Niebergall, W. Hergert, and P. Bruno
|
Ab initio study of mirages and magnetic interactions in quantum corrals
|
Submitted to Physical Review Letters
| null |
10.1103/PhysRevLett.94.187201
| null |
cond-mat.mtrl-sci
| null |
The state of the art ab initio calculations of quantum mirages,the
spin-polarization of surface-state electrons and the exchange interaction
between magnetic adatoms in Cu and Co corrals on Cu(111) are presented. We find
that the spin-polarization of the surface-state electrons caused by magnetic
adatoms can be projected to a remote location and can be strongly enhanced in
corrals compared to an open surface.Our studies give a clear evidence that
quantum corrals could permit to tailor the exchange interaction between
magnetic adatoms at large separations. The spin-polarization of surface-state
electrons at the empty focus in the Co corral used in the experimental setup of
Manoharan et al., (Nature 403, 512 (2000)) is revealed.
|
[{'version': 'v1', 'created': 'Mon, 21 Feb 2005 15:07:17 GMT'}]
|
2009-11-11
|
[array(['Stepanyuk', 'V. S.', ''], dtype=object)
array(['Niebergall', 'L.', ''], dtype=object)
array(['Hergert', 'W.', ''], dtype=object)
array(['Bruno', 'P.', ''], dtype=object)]
|
7,485 |
2112.08759
|
Szymon Bobek
|
Szymon Bobek, Micha{\l} Kuk, Jakub Brzegowski, Edyta Brzychczy,
Grzegorz J. Nalepa
|
KnAC: an approach for enhancing cluster analysis with background
knowledge and explanations
|
Accepted to Applied Intelligence
| null |
10.1007/s10489-022-04310-9
| null |
cs.AI cs.LG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Pattern discovery in multidimensional data sets has been the subject of
research for decades. There exists a wide spectrum of clustering algorithms
that can be used for this purpose. However, their practical applications share
a common post-clustering phase, which concerns expert-based interpretation and
analysis of the obtained results. We argue that this can be the bottleneck in
the process, especially in cases where domain knowledge exists prior to
clustering. Such a situation requires not only a proper analysis of
automatically discovered clusters but also conformance checking with existing
knowledge. In this work, we present Knowledge Augmented Clustering (KnAC). Its
main goal is to confront expert-based labelling with automated clustering for
the sake of updating and refining the former. Our solution is not restricted to
any existing clustering algorithm. Instead, KnAC can serve as an augmentation
of an arbitrary clustering algorithm, making the approach robust and a
model-agnostic improvement of any state-of-the-art clustering method. We
demonstrate the feasibility of our method on artificially, reproducible
examples and in a real life use case scenario. In both cases, we achieved
better results than classic clustering algorithms without augmentation.
|
[{'version': 'v1', 'created': 'Thu, 16 Dec 2021 10:13:47 GMT'}
{'version': 'v2', 'created': 'Sun, 30 Oct 2022 08:20:21 GMT'}]
|
2022-11-28
|
[array(['Bobek', 'Szymon', ''], dtype=object)
array(['Kuk', 'Michał', ''], dtype=object)
array(['Brzegowski', 'Jakub', ''], dtype=object)
array(['Brzychczy', 'Edyta', ''], dtype=object)
array(['Nalepa', 'Grzegorz J.', ''], dtype=object)]
|
7,486 |
1508.00431
|
Philipp Scior
|
Philipp Scior, Lorenz von Smekal
|
Baryonic Matter Onset in Two-Color QCD with Heavy Quarks
|
12 pages, 13 figures
|
Phys. Rev. D 92, 094504 (2015)
|
10.1103/PhysRevD.92.094504
| null |
hep-lat hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the cold and dense regime in the phase diagram of two-color QCD with
heavy quarks within a three-dimensional effective theory for Polyakov loops.
This theory is derived from two-color QCD in a combined strong-coupling and
hopping expansion. In particular, we study the onset of diquark density as the
finite-density transition of the bosonic baryons in the two-color world. In
contrast to previous studies of heavy dense QCD, our zero-temperature
extrapolations are consistent with a continuous transition without binding
energy. They thus provide evidence that the effective theory for heavy quarks
is capable of describing the characteristic differences between diquark
condensation in two-color QCD and the liquid-gas transition of nuclear matter
in QCD.
|
[{'version': 'v1', 'created': 'Mon, 3 Aug 2015 14:34:21 GMT'}]
|
2015-11-11
|
[array(['Scior', 'Philipp', ''], dtype=object)
array(['von Smekal', 'Lorenz', ''], dtype=object)]
|
7,487 |
2305.02485
|
Ziqing Zhu
|
Ziqing Zhu, Siqi Bu, Ka Wing Chan, Bin Zhou, Shiwei Xia
|
How to Use Reinforcement Learning to Facilitate Future Electricity
Market Design? Part 1: A Paradigmatic Theory
|
It is old version with mistakes
| null | null | null |
cs.AI cs.LG cs.SY eess.SY
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In face of the pressing need of decarbonization in the power sector, the
re-design of electricity market is necessary as a Marco-level approach to
accommodate the high penetration of renewable generations, and to achieve power
system operation security, economic efficiency, and environmental friendliness.
However, existing market design methodologies suffer from the lack of
coordination among energy spot market (ESM), ancillary service market (ASM) and
financial market (FM), i.e., the "joint market", and the lack of reliable
simulation-based verification. To tackle these deficiencies, this two-part
paper develops a paradigmatic theory and detailed methods of the joint market
design using reinforcement-learning (RL)-based simulation. In Part 1, the
theory and framework of this novel market design philosophy are proposed.
First, the controversial market design options while designing the joint market
are summarized as the targeted research questions. Second, the Markov game
model is developed to describe the bidding game in the joint market,
incorporating the market design options to be determined. Third, a framework of
deploying multiple types of RL algorithms to simulate the market model is
developed. Finally, several market operation performance indicators are
proposed to validate the market design based on the simulation results.
|
[{'version': 'v1', 'created': 'Thu, 4 May 2023 01:30:15 GMT'}
{'version': 'v2', 'created': 'Fri, 12 May 2023 00:48:01 GMT'}]
|
2023-05-15
|
[array(['Zhu', 'Ziqing', ''], dtype=object)
array(['Bu', 'Siqi', ''], dtype=object)
array(['Chan', 'Ka Wing', ''], dtype=object)
array(['Zhou', 'Bin', ''], dtype=object)
array(['Xia', 'Shiwei', ''], dtype=object)]
|
7,488 |
2211.12041
|
Mohit Sharma
|
Mayukh R. Gangopadhyay, Shibesh K. Jas Pacif, M. Sami, and Mohit K.
Sharma
|
Generic modification of gravity, late time acceleration and Hubble
tension
| null | null | null | null |
gr-qc astro-ph.CO
|
http://creativecommons.org/licenses/by/4.0/
|
We consider a scenario of large-scale modification of gravity that does not
invoke extra degrees of freedom but includes coupling between baryonic matter
and dark matter in the Einstein frame. The total matter energy density follows
the standard conservation, and evolution has the character of deceleration in
this frame. The model exhibits interesting features in the Jordan frame
realized by virtue of a disformal transformation where individual matter
components adhere to standard conservation but gravity is modified. A generic
parametrization of disformal transformation leaves thermal history intact. It
gives rise to late time acceleration in the Jordan frame, which necessarily
includes phantom crossing, which, in the standard framework, can be realized
using at least two scalar fields. This scenario is embodied by two
distinguishing features, namely, acceleration in the Jordan frame and
deceleration in the Einstein frame, and the possibility of resolution of the
Hubble tension thanks to the emergence of the phantom phase at late times.
|
[{'version': 'v1', 'created': 'Tue, 22 Nov 2022 06:24:13 GMT'}]
|
2022-11-23
|
[array(['Gangopadhyay', 'Mayukh R.', ''], dtype=object)
array(['Pacif', 'Shibesh K. Jas', ''], dtype=object)
array(['Sami', 'M.', ''], dtype=object)
array(['Sharma', 'Mohit K.', ''], dtype=object)]
|
7,489 |
1604.07684
|
Joshua McNeur
|
Joshua McNeur, Martin Koz\'ak, Norbert Sch\"onenberger, Kenneth J.
Leedle, Huiyang Deng, Andrew Ceballos, Heinar Hoogland, Axel Ruehl, Ingmar
Hartl, Ronald Holzwarth, Olav Solgaard, James S. Harris, Robert L. Byer, and
Peter Hommelhoff
|
Elements of a dielectric laser accelerator
| null | null | null | null |
physics.acc-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The widespread use of high energy particle beams in basic research, medicine
and coherent X-ray generation coupled with the large size of modern radio
frequency (RF) accelerator devices and facilities has motivated a strong need
for alternative accelerators operating in regimes outside of RF. Working at
optical frequencies, dielectric laser accelerators (DLAs) - transparent
laser-driven nanoscale dielectric structures whose near fields can
synchronously accelerate charged particles - have demonstrated high-gradient
acceleration with a variety of laser wavelengths, materials, and electron beam
parameters, potentially enabling miniaturized accelerators and table-top
coherent x-ray sources. To realize a useful (i.e. scalable) DLA, crucial
developments have remained: concatenation of components including sustained
phase synchronicity to reach arbitrary final energies as well as deflection and
focusing elements to keep the beam well collimated along the design axis. Here,
all of these elements are demonstrated with a subrelativistic electron beam. In
particular, by creating two interaction regions via illumination of a
nanograting with two spatio-temporally separated pulsed laser beams, we
demonstrate a phase-controlled doubling of electron energy gain from 0.7 to 1.4
keV (2.5 percent to 5 percent of the initial beam energy) and through use of a
chirped grating geometry, we overcome the dephasing limit of 25 keV electrons,
increasing their energy gains to a laser power limited 10 percent of their
initial energy. Further, optically-driven transverse focusing of the electron
beam with focal lengths below 200 microns is achieved via a parabolic grating
geometry. These results lay the cornerstone for future miniaturized phase
synchronous vacuum-structure-based accelerators.
|
[{'version': 'v1', 'created': 'Tue, 26 Apr 2016 14:08:36 GMT'}
{'version': 'v2', 'created': 'Mon, 6 Jun 2016 03:24:21 GMT'}]
|
2016-06-07
|
[array(['McNeur', 'Joshua', ''], dtype=object)
array(['Kozák', 'Martin', ''], dtype=object)
array(['Schönenberger', 'Norbert', ''], dtype=object)
array(['Leedle', 'Kenneth J.', ''], dtype=object)
array(['Deng', 'Huiyang', ''], dtype=object)
array(['Ceballos', 'Andrew', ''], dtype=object)
array(['Hoogland', 'Heinar', ''], dtype=object)
array(['Ruehl', 'Axel', ''], dtype=object)
array(['Hartl', 'Ingmar', ''], dtype=object)
array(['Holzwarth', 'Ronald', ''], dtype=object)
array(['Solgaard', 'Olav', ''], dtype=object)
array(['Harris', 'James S.', ''], dtype=object)
array(['Byer', 'Robert L.', ''], dtype=object)
array(['Hommelhoff', 'Peter', ''], dtype=object)]
|
7,490 |
1911.09618
|
Xue-Mei Li
|
K. D. Elworthy and Xue-Mei Li
|
Special It\^o maps and an $L^2$ Hodge theory for one forms on path
spaces
| null |
In `Stochastic processes, physics and geometry: new interplays, I'
(Leipzig, 1999), 145-162, CMS Conf. Proc., 28, Amer. Math. Soc., Providence,
RI, 2000
| null | null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove a Kodaira-Hodge decomposition on differential 1-forms on the space
of non-smooth paths over a Riemannian manifold, allowing us to define the
corresponding first cohomology group. This uses the It\^o map of a Brownian
system and damped stochastic parallel translation.
|
[{'version': 'v1', 'created': 'Thu, 21 Nov 2019 17:27:11 GMT'}]
|
2019-11-22
|
[array(['Elworthy', 'K. D.', ''], dtype=object)
array(['Li', 'Xue-Mei', ''], dtype=object)]
|
7,491 |
0706.0388
|
Oliver Lieleg
|
Oliver Lieleg and Andreas R. Bausch
|
Cross-linker unbinding and self-similarity in bundled cytoskeletal
networks
|
5 pages, 4 figures (including supplementary information)
| null |
10.1103/PhysRevLett.99.158105
| null |
cond-mat.soft cond-mat.mtrl-sci
| null |
The macromechanical properties of purely bundled in vitro actin networks are
not only determined by the micromechanical properties of individual bundles but
also by molecular unbinding events of the actin binding protein (ABP) fascin.
Under high mechanical load the network elasticity depends on the forced
unbinding of individual ABPs in a rate dependent manner. Cross-linker unbinding
in combination with the structural self-similarity of the network enables the
introduction of a concentration/time superposition principle - broadening the
mechanically accessible frequency range over 8 orders of magnitude.
|
[{'version': 'v1', 'created': 'Mon, 4 Jun 2007 08:11:24 GMT'}]
|
2009-11-13
|
[array(['Lieleg', 'Oliver', ''], dtype=object)
array(['Bausch', 'Andreas R.', ''], dtype=object)]
|
7,492 |
1401.0301
|
Reza Farrahi Moghaddam
|
Reza Farrahi Moghaddam, Fereydoun Farrahi Moghaddam, and Mohamed
Cheriet
|
IIGHGINT: A generalization to the modified GHG intensity universal
indicator toward a production/consumption insensitive border carbon tax
|
17 pages, 3 figures. Pre-print of a chapter submitted to the book
"Taxes and the Economy: Government Policies, Macroeconomic Factors and
Impacts on Consumption and the Environment" (NOVA Science Publishers)
| null | null | null |
q-fin.GN
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A global agreement on how to reduce and cap human footprint, especially their
GHG emissions, is very unlikely in near future. At the same time, bilateral
agreements would be inefficient because of their neural and balanced nature.
Therefore, unilateral actions would have attracted attention as a practical
option. However, any unilateral action would most likely fail if it is not fair
and also if it is not consistent with the world trade organization's (WTO's)
rules, considering highly heterogeneity of the global economy. The modified GHG
intensity (MGHGINT) indicator, hereafter called Inequality-adjusted
Production-based GHGINT (IPGHGINT), was put forward to address this need in the
form of a universal indicator applicable to every region regardless of its
economic and social status. Nonetheless, the original MGHGINT indicator ignores
hidden consumption-related emissions, and therefore it could be unfair to some
production-oriented regions in the current bipolar production/consumption
world. Here, we propose two generalizations, called Inequality-adjusted
Consumption-based GHGINT (ICGHGINT) and Inequality-adjusted
Production/Consumption-Insensitive GHGINT (IIGHGINT), to the IPGHGINT in order
to combine both production and consumption emissions in a unified and balanced
manner. The impact of this generalizations on the associated border carbon tax
rates is evaluated in order to validate their practicality.
|
[{'version': 'v1', 'created': 'Wed, 1 Jan 2014 16:04:30 GMT'}
{'version': 'v2', 'created': 'Wed, 2 Apr 2014 19:46:59 GMT'}]
|
2014-04-03
|
[array(['Moghaddam', 'Reza Farrahi', ''], dtype=object)
array(['Moghaddam', 'Fereydoun Farrahi', ''], dtype=object)
array(['Cheriet', 'Mohamed', ''], dtype=object)]
|
7,493 |
quant-ph/0505220
|
Giuseppe Scolarici dr
|
V. I. Man'ko, G. Marmo, A. Simoni, A. Stern, F. Ventriglia
|
Tomograms in the Quantum-Classical transition
|
21 pages
|
Phys.Lett. A343 (2005) 251-256
|
10.1016/j.physleta.2005.05.090
| null |
quant-ph hep-th math-ph math.MP
| null |
The quantum-classical limits for quantum tomograms are studied and compared
with the corresponding classical tomograms, using two different definitions for
the limit. One is the Planck limit where $\hbar \to 0$ in all $\hbar
$-dependent physical observables, and the other is the Ehrenfest limit where
$\hbar \to 0$ while keeping constant the mean value of the energy.The Ehrenfest
limit of eigenstate tomograms for a particle in a box and a harmonic
oscillatoris shown to agree with the corresponding classical tomograms of
phase-space distributions, after a time averaging. The Planck limit of
superposition state tomograms of the harmonic oscillator demostrating the
decreasing contribution of interferences terms as $\hbar \to 0$.
|
[{'version': 'v1', 'created': 'Mon, 30 May 2005 09:04:38 GMT'}]
|
2009-11-11
|
[array(["Man'ko", 'V. I.', ''], dtype=object)
array(['Marmo', 'G.', ''], dtype=object)
array(['Simoni', 'A.', ''], dtype=object)
array(['Stern', 'A.', ''], dtype=object)
array(['Ventriglia', 'F.', ''], dtype=object)]
|
7,494 |
cond-mat/9903424
|
Yuhai Tu
|
Yuhai Tu and J. Tersoff (IBM Yorktown Heights)
|
Structure and energetics of the Si-SiO_2 interface
|
LaTex file with 4 figures in GIF format
| null |
10.1103/PhysRevLett.84.4393
| null |
cond-mat.mtrl-sci cond-mat.stat-mech
| null |
Silicon has long been synonymous with semiconductor technology. This unique
role is due largely to the remarkable properties of the Si-SiO_2 interface,
especially the (001)-oriented interface used in most devices. Although Si is
crystalline and the oxide is amorphous, the interface is essentially perfect,
with an extremely low density of dangling bonds or other electrically active
defects. With the continual decrease of device size, the nanoscale structure of
the silicon/oxide interface becomes more and more important. Yet despite its
essential role, the atomic structure of this interface is still unclear. Using
a novel Monte Carlo approach, we identify low-energy structures for the
interface. The optimal structure found consists of Si-O-Si "bridges" ordered in
a stripe pattern, with very low energy. This structure explains several
puzzling experimental observations.
|
[{'version': 'v1', 'created': 'Mon, 29 Mar 1999 22:48:59 GMT'}]
|
2009-10-31
|
[array(['Tu', 'Yuhai', '', 'IBM Yorktown Heights'], dtype=object)
array(['Tersoff', 'J.', '', 'IBM Yorktown Heights'], dtype=object)]
|
7,495 |
0905.1742
|
Admi Nazra
|
Admi Nazra
|
Diffeomorphism Classes of Real Bott Manifolds
|
This paper appears in Tokyo Journal of Mathematics Vol 34 no 1 with
the title: Diffeomorphism Classes of Real Bott Manifolds. This paper is the
paper submitted in arXiv:0905.1742, with the title: Determination of real
Bott manifolds
|
Tokyo Journal of Mathematics, Volume 34, Number 1, 2011, p 229-260
| null | null |
math.AT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A real Bott tower is obtained as the orbit space of the $n$-torus $T^n$ by
the free action of an elementary abelian 2-group $(\mathbb{Z}_2)^n$. This paper
deals with the classification of 5-dimensional real Bott towers and study
certain type of $n$-dimensional real Bott towers ($n\geq 6$).
|
[{'version': 'v1', 'created': 'Tue, 12 May 2009 12:40:50 GMT'}
{'version': 'v2', 'created': 'Wed, 19 Mar 2014 15:11:03 GMT'}]
|
2014-03-20
|
[array(['Nazra', 'Admi', ''], dtype=object)]
|
7,496 |
2205.04348
|
Harmeet Singh
|
Harmeet Singh
|
Planar equilibria of an elastic rod wrapped around a circular capstan
|
Final published version
| null |
10.1007/s10659-022-09939-8
| null |
cond-mat.soft math-ph math.MP
|
http://creativecommons.org/licenses/by/4.0/
|
We present a study on planar equilibria of a terminally loaded elastic rod
wrapped around a rigid circular capstan. Both frictionless and frictional
contact between the rod and the capstan are considered. We identify three cases
of frictionless contact -- namely where the rod touches the capstan at one
point, along a continuous arc, and at two points. We show that, in contrast to
a fully flexible filament, an elastic rod of \emph{finite length} wrapped
around a capstan does not require friction to support unequal loads at its two
ends. Furthermore, we classify rod equilibria corresponding to the three
aforementioned cases in a limit where the length of the rod is much larger than
the radius of the capstan. In the same limit, we incorporate frictional
interaction between the rod and the capstan, and compute limiting equilibria of
the rod. Our solution to the frictional case fully generalizes the
\emph{classic capstan problem} to include the effects of finite thickness and
bending elasticity of a flexible filament wrapped around a circular capstan.
|
[{'version': 'v1', 'created': 'Mon, 9 May 2022 14:51:11 GMT'}
{'version': 'v2', 'created': 'Tue, 9 Aug 2022 14:27:26 GMT'}
{'version': 'v3', 'created': 'Fri, 14 Oct 2022 20:12:26 GMT'}]
|
2022-10-18
|
[array(['Singh', 'Harmeet', ''], dtype=object)]
|
7,497 |
0809.3514
|
Hank Miller
|
M. K. G. Kruse, H. G. Millerr, A. Plastino, A. R. Plastino
|
Aspects of quantum phase transitions
|
corrected typos
| null | null | null |
quant-ph cond-mat.stat-mech nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A unified description of i) classical phase transitions and their remnants in
finite systems and ii) quantum phase transitions is presented. The ensuing
discussion relies on the interplay between, on the one hand, the thermodynamic
concepts of temperature and specific heat and on the other, the quantal ones of
coupling strengths in the Hamiltonian. Our considerations are illustrated in an
exactly solvable model of Plastino and Moszkowski [Il Nuovo Cimento {\bf 47},
470 (1978)].
|
[{'version': 'v1', 'created': 'Sat, 20 Sep 2008 16:12:43 GMT'}
{'version': 'v2', 'created': 'Fri, 10 Oct 2008 17:46:18 GMT'}]
|
2008-10-10
|
[array(['Kruse', 'M. K. G.', ''], dtype=object)
array(['Millerr', 'H. G.', ''], dtype=object)
array(['Plastino', 'A.', ''], dtype=object)
array(['Plastino', 'A. R.', ''], dtype=object)]
|
7,498 |
2304.08590
|
Vittorio Astarita Prof.
|
Vittorio Astarita
|
Risks and opportunities in arbitrage and market-making in
blockchain-based currency markets. Part 1 : Risks
| null | null | null | null |
econ.GN q-fin.EC q-fin.TR
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
This study provides a practical introduction to high-frequency trading in
blockchain-based currency markets. These types of markets have some specific
characteristics that differentiate them from the stock markets, such as a large
number of trading exchanges (centralized and decentralized), relative
simplicity in moving funds from one exchange to another, and the large number
of new currencies that have very little liquidity. This study analyzes the
possible risks that specifically characterize this type of trading operation,
the potential opportunities, and the algorithms that are mostly used, providing
information that can be useful for practitioners who intend to operate in these
markets by providing (and risking) liquidity.
|
[{'version': 'v1', 'created': 'Mon, 17 Apr 2023 20:13:49 GMT'}]
|
2023-04-19
|
[array(['Astarita', 'Vittorio', ''], dtype=object)]
|
7,499 |
2101.01433
|
Xiangguo Sun
|
Hongxu Chen, Yicong Li, Xiangguo Sun, Guandong Xu, Hongzhi Yin
|
Temporal Meta-path Guided Explainable Recommendation
|
accepted by WSDM2021
| null | null | null |
cs.SI
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
This paper utilizes well-designed item-item path modelling between
consecutive items with attention mechanisms to sequentially model dynamic
user-item evolutions on dynamic knowledge graph for explainable
recommendations. Compared with existing works that use heavy recurrent neural
networks to model temporal information, we propose simple but effective neural
networks to capture user historical item features and path-based context to
characterise next purchased item. Extensive evaluations of TMER on three
real-world benchmark datasets show state-of-the-art performance compared
against recent strong baselines.
|
[{'version': 'v1', 'created': 'Tue, 5 Jan 2021 09:54:25 GMT'}]
|
2021-01-06
|
[array(['Chen', 'Hongxu', ''], dtype=object)
array(['Li', 'Yicong', ''], dtype=object)
array(['Sun', 'Xiangguo', ''], dtype=object)
array(['Xu', 'Guandong', ''], dtype=object)
array(['Yin', 'Hongzhi', ''], dtype=object)]
|
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