cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Improved analyses for $μ^-e^-\rightarrow e^-e^-$ in muonic atoms by contact interactions
Creators: name: Uesaka, Yuichi
name: Kuno, Yoshitaka
name: Sato, Joe
name: Sato, Toru
name: Yamanaka, Masato
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The charged lepton flavor violating (CLFV) processes of $μ^-e^-\rightarrow e^-e^-$ decay by four Fermi contact interactions in a muonic atom for various atoms are investigated. The wave functions of bound and scattering state leptons are properly treated by solving Dirac equations with Coulomb interaction of the finite nuclear charge distributions. This new effect contributes significantly in particular for heavier atoms, where the obtained decay rate is about one order of magnitude larger than the previous estimation for $^{208}$Pb. We find that, as the atomic number $Z$ increases, the $μ^-e^-\rightarrow e^-e^-$ decay rates increase more rapidly than the result of the previous work of $Z^3$, suggesting this decay as one of the promising processes to search for CLFV interaction.
description: 10 pages, 7 figures
Interplay between media and social influence in the collective behavior of opinion dynamics
Creators: name: Colaiori, Francesca
name: Castellano, Claudio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Messages conveyed by media act as a major drive in shaping attitudes and inducing opinion shift. On the other hand, individuals are strongly affected by peer pressure while forming their own judgment. We solve a general model of opinion dynamics where individuals either hold one of two alternative opinions or are undecided and interact pairwise while exposed to an external influence. As media pressure increases, the system moves from pluralism to global consensus; four distinct classes of collective behavior emerge, crucially depending on the outcome of direct interactions among individuals holding opposite opinions. Observed nontrivial behaviors include hysteretic phenomena and resilience of minority opinions. Notably, consensus could be unachievable even when media and microscopic interactions are biased in favor of the same opinion: The unfavored opinion might even gain the support of the majority.
description: 10 pages, 5 figures
Compositional Algorithms for Succinct Safety Games
Creators: name: Brenguier, Romain
name: Pérez, Guillermo A.
name: Raskin, Jean-François
name: Sankur, Ocan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.3.1,B.1.2,B.6.3

description: We study the synthesis of circuits for succinct safety specifications given in the AIG format. We show how AIG safety specifications can be decomposed automatically into sub specifications. Then we propose symbolic compositional algorithms to solve the synthesis problem compositionally starting for the sub-specifications. We have evaluated the compositional algorithms on a set of benchmarks including those proposed for the first synthesis competition organised in 2014 by the Synthesis Workshop affiliated to the CAV conference. We show that a large number of benchmarks can be decomposed automatically and solved more efficiently with the compositional algorithms that we propose in this paper.
description: In Proceedings SYNT 2015, arXiv:1602.00786
Stability of energy landscape for Ising models
Creators: name: Fukushima-Kimura, Bruno Hideki
name: Sakai, Akira
name: Toyokawa, Hisayoshi
name: Ueda, Yuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper, we explore the stability of the energy landscape of an Ising Hamiltonian when subjected to two kinds of perturbations: a perturbation on the coupling coefficients and external fields, and a perturbation on the underlying graph structure. We give sufficient conditions so that the ground states of a given Hamiltonian are stable under perturbations of the first kind in terms of order preservation. Here by order preservation we mean that the ordering of energy corresponding to two spin configurations in a perturbed Hamiltonian will be preserved in the original Hamiltonian up to a given error margin. We also estimate the probability that the energy gap between ground states for the original Hamiltonian and the perturbed Hamiltonian is bounded by a given error margin when the coupling coefficients and local external magnetic fields of the original Hamiltonian are i.i.d. Gaussian random variables. In the end we show a concrete example of a system which is stable under perturbations of the second kind.
description: 16 pages, 7 figures
Marc Connelly, Postcards from the Western Front. Pilgrims, Veterans, and Tourists after the Great War, Montréal, QC (McGill-Queen’s University Press) 2022
Creators: name: Janz, Nina
Publisher: name: Francia-Recensio
Year: 2023

description: Marc Connelly, Postcards from the Western Front. Pilgrims, Veterans, and Tourists after the Great War, Montréal, QC (McGill-Queen’s University Press) 2022, 424 p., 24 fig., 1 map (Human Dimensions in Foreign Policy, Military Studies, and Security Studies, 17), ISBN 978-0-2280-1189-7, CAD 42,95.
description: Francia-Recensio, 2023/2
Searching for ring-like structures in the Cosmic Microwave Background
Creators: name: Lopez, Melissa
name: Bonizzi, Pietro
name: Driessens, Kurt
name: Koekoek, Gideon
name: de Vries, Jacco
name: Westra, Ronald
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this research, we present an alternative methodology to search for ring-like structures in the sky with unusually large temperature gradients, namely Hawking points (HP), in the Cosmic Microwave Background (CMB), which are possible observational effects associated with Conformal Cyclic Cosmology (CCC). To assess the performance of our method, we constructed an artificial data set of HP, according to CCC, and we were able to retrieve $95 \%$ of ring-like anomalies from it. Furthermore, we scanned the \textit{Planck} CMB sky map and compared it to simulations according to $ΛCDM$, where we applied robust statistical tests to assess the existence of HP. Even though no significant ring-like structures were observed, we report the largest excess of HP candidates found at $α= $1\% significance level for the analyzed sky maps (CMB at 70GHz, SEVEM, SMICA, and Commander-Ruler), and we stress the need to continue the theoretical and experimental research in this direction.
description: 9 pages, 5 figures, 1 table, 1 algorithm
Klaus-Jürgen Bremm, Normandie 1944. Die Entscheidungsschlacht um Europa, Darmstadt (Wissenschaftliche Buchgesellschaft Theiss) 2022
Creators: name: Koenig, Geoffrey
Publisher: name: Francia-Recensio
Year: 2023

description: Klaus-Jürgen Bremm, Normandie 1944. Die Entscheidungsschlacht um Europa, Darmstadt (Wissenschaftliche Buchgesellschaft Theiss) 2022, 352 S., 40 s/w Abb., ISBN 978-3-8062-4488-5, EUR 28,00.
description: Francia-Recensio, 2023/2
Infrared spectral energy distribution decomposition of WISE-selected, hyperluminous hot dust-obscured galaxies
Creators: name: Fan, Lulu
name: Han, Yunkun
name: Nikutta, Robert
name: Drouart, Guillaume
name: Knudsen, Kirsten K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We utilize a Bayesian approach to fit the observed mid-IR-to-submm/mm spectral energy distributions (SEDs) of 22 WISE-selected and submm-detected, hyperluminous hot dust-obscured galaxies. By adopting the Torus+GB model, we decompose the observed IR SEDs of Hot DOGs into torus and cold dust components. The main results are: 1) Hot DOGs in our submm-detected sample are hyperluminous, with torus emission dominating the IR energy output. However, cold dust emission is non-negligible, averagely contributing ~24% of total IR luminosity. 2) Compared to QSO and starburst SED templates, the median SED of Hot DOGs shows the highest luminosity ratio between mid-IR and submm at rest-frame, while it is very similar to that of QSOs at 10-50um suggesting that the heating sources of Hot DOGs should be buried AGNs. 3) Hot DOGs have both high dust temperatures ~73K and IR luminosity of cold dust. The T-L relation of Hot DOGs suggests that the increase in IR luminosity for Hot DOGs is mostly due to the increase of the dust temperature, rather than dust mass. Hot DOGs have lower dust masses than those of submillimeter galaxies (SMGs) and QSOs within the similar redshift range. Both high IR luminosity of cold dust and relatively low dust mass in Hot DOGs can be expected by their relatively high dust temperatures. 4) Hot DOGs have high dust covering factors, which deviate the previously proposed trend of the dust covering factor decreasing with increasing bolometric luminosity. Finally, we can reproduce the observed properties in Hot DOGs by employing a physical model of galaxy evolution. The result suggests that Hot DOGs may lie at or close to peaks of both star formation and black hole growth histories, and represent a transit phase during the evolution of massive galaxies, transforming from the dusty starburst dominated phase to the optically bright QSO phase. (abridged)
description: 16 pages, 12 figures. Accepted by ApJ
Sarah E. Black, Drugging France. Mind-altering Medicine in the Long Nineteenth Century, Montréal, QC (McGill-Queen’s University Press) 2022
Creators: name: Feustel, Robert
Publisher: name: Francia-Recensio
Year: 2023

description: Sarah E. Black, Drugging France. Mind-altering Medicine in the Long Nineteenth Century, Montréal, QC (McGill-Queen’s University Press) 2022, 400 p. (Intoxicating Histories, 5), ISBN 978-0-228-01143-9, USD 42,95.
description: Francia-Recensio, 2023/2
On the Scale free laws of Urban Facilities
Creators: name: Wu, Liang
name: Li, Yang
name: Chen, Xuezheng
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We implement a double stochastic process as the mathematical model for the spatial point patterns of urban facilities. We find that the model with power covariance function can produce the best fit not only to $K$ function (whose derivative gives the radial distribution $ρ(t) = K'(t)/2πt$) but also to additional facts of spatial point patterns. These facts include the mean-variance relationship of number of events in a series of expanding bins, and other statistics beyond the first two orders, such as inter-event distribution function $H(t)$ and nearest neighbor distribution functions $G(t)$ and $F(t)$.
description: 13 pages, 6 figures
Andreas Biefang, Dominik Geppert, Marie-Luise Recker, Andreas Wirsching (Hg.), Parlamentarismus in Deutschland von 1815 bis zur Gegenwart. Historische Perspektiven auf die repräsentative Demokratie, Düsseldorf (Droste) 2022
Creators: name: Patin, Nicolas
Publisher: name: Francia-Recensio
Year: 2023

description: Andreas Biefang, Dominik Geppert, Marie-Luise Recker, Andreas Wirsching (Hg.), Parlamentarismus in Deutschland von 1815 bis zur Gegenwart. Historische Perspektiven auf die repräsentative Demokratie, Düsseldorf (Droste) 2022, 476 S. (Veröffentlichungen der Kommission für Geschichte des Parlamentarismus und der politischen Parteien [KGParl]), ISBN 978-3-7700-5355-1, EUR 49,90.
description: Francia-Recensio, 2023/2
Modular Procedural Generation for Voxel Maps
Creators: name: Pyarelal, Adarsh
name: Banerjee, Aditya
name: Barnard, Kobus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Task environments developed in Minecraft are becoming increasingly popular for artificial intelligence (AI) research. However, most of these are currently constructed manually, thus failing to take advantage of procedural content generation (PCG), a capability unique to virtual task environments. In this paper, we present mcg, an open-source library to facilitate implementing PCG algorithms for voxel-based environments such as Minecraft. The library is designed with human-machine teaming research in mind, and thus takes a 'top-down' approach to generation, simultaneously generating low and high level machine-readable representations that are suitable for empirical research. These can be consumed by downstream AI applications that consider human spatial cognition. The benefits of this approach include rapid, scalable, and efficient development of virtual environments, the ability to control the statistics of the environment at a semantic level, and the ability to generate novel environments in response to player actions in real time.
description: 8 pages, 7 figures, submitted to IEEE Conference on Games 2021
Morphology and kinematics of the gas envelope of the Mira binary W Aquilae
Creators: name: Hoai, D. T.
name: Nhung, P. T.
name: Diep, P. N.
name: Phuong, N. T.
name: Tuan-Anh, P.
name: Thao, N. T.
name: Darriulat, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We analyse ALMA observations of the 12CO(3-2) emission of the circumstellar envelope (CSE) of the Mira variable binary star W Aql. These provide, for the first time, spatially resolved Doppler velocity spectra of the CSE up to angular distances to the central star of ~ 5" (meaning some 2000 AU). The exploratory nature of the observations (only five minutes in each of two different configurations) does not allow for a detailed modelling of the properties of the CSE but provides important qualitative information on its morphology and kinematics. Emission is found to be enhanced along an axis moving from east/west to north-east/south-west when the angular distance from the central star projected on the plane of the sky increases from zero to four arcseconds. In parallel, the Doppler velocity distribution displays asymmetry along an axis moving from east/west to north-west/south-east. The results are discussed in the context of earlier observations, in particular of the dust morphology.
description: 11 pages, 12 figures
Agathe Bernier-Monod, Les fondateurs. Reconstruire la République après le nazisme, Lyon (ENS Éditions) 2022
Creators: name: Favre, Muriel
Publisher: name: Francia-Recensio
Year: 2023

description: Agathe Bernier-Monod, Les fondateurs. Reconstruire la République après le nazisme, Lyon (ENS Éditions) 2022, 294 p. (Sociétés, espaces, temps), ISBN 979-10-362-0524-8, EUR 26,00.
description: Francia-Recensio, 2023/2
Asteroseismology of 19 low-luminosity red giant stars from Kepler
Creators: name: Hernandez, F. Perez
name: Garcia, R. A.
name: Corsaro, E.
name: Triana, S. A.
name: De Ridder, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Frequencies of acoustic and mixed modes in red giant stars are now determined with high precision thanks to the long continuous observations provided by the NASA Kepler mission. Here we consider the eigenfrequencies of nineteen low-luminosity red giant stars selected by Corsaro et al. (2015) for a detailed peak-bagging analysis. Our objective is to obtain stellar parameters by using individual mode frequencies and spectroscopic information. We use a forward modelling technique based on a minimization procedure combining the frequencies of the p modes, the period spacing of the dipolar modes, and the spectroscopic data. Consistent results between the forward modelling technique and values derived from the seismic scaling relations are found but the errors derived using the former technique are lower. The average error for log g is 0.002 dex, compared to 0.011 dex from the frequency of maximum power and 0.10 dex from the spectroscopic analysis. Relative errors in the masses and radii are on average 2 and 0.5 per cent respectively, compared to 3 and 2 per cent derived from the scaling relations. No reliable determination of the initial helium abundances and the mixing length parameters could be made. Finally, for our grid of models with a given input physics, we found that low-mass stars require higher values of the overshooting parameter.
description: Accepted for publication in A&A. 10 pages and 14 figures
Designing a Pseudo-Random Bit Generator with a Novel 5D-Hyperchaotic System
Creators: name: Nguyen, Ngoc T.
name: Bui, Toan Q.
name: Gagnon, Ghyslain
name: Giard, Pascal
name: Kaddoum, Georges
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Dynamic and non-linear systems are emerging as potential candidates for random bit generation. In this context, chaotic systems, which are both dynamic and stochastic, are particularly suitable. This paper introduces a new continuous chaotic system along with its corresponding implementation, which targets field-programmable gate array (FPGA). This chaotic system has five dimensions, which exhibit complex chaotic dynamics, thus enabling the utilization of chaotic signals in cryptography. A mathematical analysis is presented to demonstrate the dynamic characteristics of the proposed hyperchaotic system. A novel digital implementation of the proposed system is presented. Moreover, a data scrambling circuit is implemented to eliminate the bias effect and increase the randomness of the bitstream generated from the chaotic signals. We show that the proposed random bit generator has high randomness. The generated bits successfully pass well-known statistical randomness test-suites, i.e., NIST SP800-22, Diehard, and TestU01. The ready-to-use random bit generator is deployed on a Xilinx Zynq-7000 SoC ZC702 Evaluation Kit. Experimental results show that the proposed random bit generator can achieve a maximum throughput of 6.78 Gbps, which is over 3.6 times greater than state-of-the-art designs while requiring under 4% of the resources available on the targeted FPGA.
description: 9 pages, 13 figures, 4 tables, article
Marc-Olivier Baruch (dir.), Vichy et les préfets. Le corps préfectoral français pendant la Deuxième Guerre mondiale, Paris (Éditions de la Documentation Française) 2021
Creators: name: Pollack, Guillaume
Publisher: name: Francia-Recensio
Year: 2023

description: Marc-Olivier Baruch (dir.), Vichy et les préfets. Le corps préfectoral français pendant la Deuxième Guerre mondiale, Paris (Éditions de la Documentation Française) 2021, 327 p., ISBN 978-2-11-145673-0, EUR 19,00.
description: Francia-Recensio, 2023/2
Robert Belot, La mémoire anti-allemande en France. Henry Frenay et l’affaire Speidel (1957), Lyon (Presse fédéraliste) 2022
Creators: name: Geiger, Wolfgang
Publisher: name: Francia-Recensio
Year: 2023

description: Robert Belot, La mémoire anti-allemande en France. Henry Frenay et l’affaire Speidel (1957), Lyon (Presse fédéraliste) 2022, 174 p. (Textes fédéralistes, 21), ISBN 978-2-491429-11-9, EUR 15,00.
description: Francia-Recensio, 2023/2
Christian Baechler, La trahison des élites allemandes. Essai sur le rôle de la bourgeoisie culturelle 1770–1945, Paris (Passés composés/Humensis) 2021
Creators: name: Hudemann, Rainer
Publisher: name: Francia-Recensio
Year: 2023

description: Christian Baechler, La trahison des élites allemandes. Essai sur le rôle de la bourgeoisie culturelle 1770–1945, Paris (Passés composés/Humensis) 2021, 648 p., ISBN 978-2-3793-3712-3, EUR 27,00.
description: Francia-Recensio, 2023/2
Specification Format for Reactive Synthesis Problems
Creators: name: Khalimov, Ayrat
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Automatic synthesis from a given specification automatically constructs correct implementation. This frees the user from the mundane implementation work, but still requires the specification. But is specifying easier than implementing? In this paper, we propose a user-friendly format to ease the specification work, in particularly, that of specifying partial implementations. Also, we provide scripts to convert specifications in the new format into the SYNTCOMP format, thus benefiting from state of the art synthesizers.
description: In Proceedings SYNT 2015, arXiv:1602.00786
Perfect matchings, Hamiltonian cycles and edge-colourings in a class of cubic graphs
Creators: name: Abreu, Marién
name: Gauci, John Baptist
name: Labbate, Domenico
name: Romaniello, Federico
name: Zerafa, Jean Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15, 05C45, 05C70

description: A graph $G$ has the Perfect-Matching-Hamiltonian property (PMH-property) if for each one of its perfect matchings, there is another perfect matching of $G$ such that the union of the two perfect matchings yields a Hamiltonian cycle of $G$. The study of graphs that have the PMH-property, initiated in the 1970s by Las Vergnas and Häggkvist, combines three well-studied properties of graphs, namely matchings, Hamiltonicity and edge-colourings. In this work, we study these concepts for cubic graphs in an attempt to characterise those cubic graphs for which every perfect matching corresponds to one of the colours of a proper 3-edge-colouring of the graph. We discuss that this is equivalent to saying that such graphs are even-2-factorable (E2F), that is, all 2-factors of the graph contain only even cycles. The case for bipartite cubic graphs is trivial, since if $G$ is bipartite then it is E2F. Thus, we restrict our attention to non-bipartite cubic graphs. A sufficient, but not necessary, condition for a cubic graph to be E2F is that it has the PMH-property. The aim of this work is to introduce an infinite family of E2F non-bipartite cubic graphs on two parameters, which we coin papillon graphs, and determine the values of the respective parameters for which these graphs have the PMH-property or are just E2F. We also show that no two papillon graphs with different parameters are isomorphic.
description: 18 pages, 11 figures
Claire Aslangul-Rallo, Bérénice Zunino (dir.), La presse et ses images. Die Presse und ihre Bilder/Sources – réseaux – imaginaires – méthodes. Quellen – Netzwerke – Imaginäre – Methoden, Frankfurt a. M. (Peter Lang Edition) 2022
Creators: name: Schober, Angelika
Publisher: name: Francia-Recensio
Year: 2023

description: Claire Aslangul-Rallo, Bérénice Zunino (dir.), La presse et ses images. Die Presse und ihre Bilder/Sources – réseaux – imaginaires – méthodes. Quellen – Netzwerke – Imaginäre – Methoden, Frankfurt a. M. (Peter Lang Edition) 2022, 546 p., 160 ill. (Zivilisationen und Geschichte/Civilizations and History/Civilisations et Histoire, 73), ISBN 978-3-631-84291-1, EUR 89,99.
description: Francia-Recensio, 2023/2
Birgit Aschmann, Monika Wienfort (Hg.), Zwischen Licht und Schatten. Das Kaiserreich (1871–1914) und seine neuen Kontroversen, Frankfurt a. M. (Campus Verlag) 2022
Creators: name: Galand, Lise
Publisher: name: Francia-Recensio
Year: 2023

description: Birgit Aschmann, Monika Wienfort (Hg.), Zwischen Licht und Schatten. Das Kaiserreich (1871–1914) und seine neuen Kontroversen, Frankfurt a. M. (Campus Verlag) 2022, 399 S., ISBN 978-3-593-51508-3, EUR 32,00.
description: Francia-Recensio, 2023/2
A Stochastic Analysis of Network MIMO Systems
Creators: name: Hosseini, Kianoush
name: Yu, Wei
name: Adve, Raviraj S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper quantifies the benefits and limitations of cooperative communications by providing a statistical analysis of the downlink in network multiple-input multiple-output (MIMO) systems. We consider an idealized model where the multiple-antenna base-stations (BSs) are distributed according to a homogeneous Poisson point process and cooperate by forming disjoint clusters. We assume that perfect channel state information (CSI) is available at the cooperating BSs without any overhead. Multiple single-antenna users are served using zero-forcing beamforming with equal power allocation across the beams. For such a system, we obtain tractable, but accurate, approximations of the signal power and inter-cluster interference power distributions and derive a computationally efficient expression for the achievable per-BS ergodic sum rate using tools from stochastic geometry. This expression allows us to obtain the optimal loading factor, i.e., the ratio between the number of scheduled users and the number of BS antennas, that maximizes the per-BS ergodic sum rate. Further, it allows us to quantify the performance improvement of network MIMO systems as a function of the cooperating cluster size. We show that to perform zero-forcing across the distributed set of BSs within the cluster, the network MIMO system introduces a penalty in received signal power. Along with the inevitable out-of-cluster interference, we show that the per-BS ergodic sum rate of a network MIMO system does not approach that of an isolated cell even at unrealistically large cluster sizes. Nevertheless, network MIMO does provide significant rate improvement as compared to uncoordinated single-cell processing even at relatively modest cluster sizes.
description: Accepted for publication at IEEE Transactions on Signal Processing
Exact simulation of the first passage time through a given level for jump diffusions
Creators: name: Herrmann, Samuel
name: Massin, Nicolas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Continuous-time stochastic processes play an important role in the description of random phenomena, it is therefore of prime interest to study particular variables depending on their paths, like stopping time for example. One approach consists in pointing out explicit expressions of the probability distributions, an other approach is rather based on the numerical generation of the random variables. We propose an algorithm in order to generate the first passage time through a given level of a one-dimensional jump diffusion. This process satisfies a stochastic differential equation driven by a Brownian motion and subject to random shocks characterized by an independent Poisson process. Our algorithm belongs to the family of rejection sampling procedures, also called exact simulation in this context: the outcome of the algorithm and the stopping time under consideration are identically distributed. It is based on both the exact simulation of the diffusion at a given time and on the exact simulation of first passage time for continuous diffusions. It is therefore based on an extension of the algorithm introduced by Herrmann and Zucca [16] in the continuous framework. The challenge here is to generate the exact position of a continuous diffusion conditionally to the fact that the given level has not been reached before. We present the construction of the algorithm and give numerical illustrations, conditions on the recurrence of jump diffusions are also discussed.
Node-Surface and Node-Line Fermions From Nonsymmorphic Lattice Symmetries
Creators: name: Liang, Qi-Feng
name: Zhou, Jian
name: Yu, Rui
name: Wang, Zhi
name: Weng, Hongming
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a kind of novel topological quantum state of semimetals in a quasi-one-dimensional (1D) crystals BaMX$_3$ (M = V, Nb or Ta; X = S or Se) family by using symmetry analysis and first principles calculation. We find that in BaVS$_3$ the valence and conduction bands are degenerate in the $k_z=π/c$ plane ($c$ is the lattice constant along $\hat{z}$ axis) of the Brillouin Zone (BZ). These nodal points form a node-surface and they are protected by a nonsymmorphic crystal symmetry consisting of a two-fold rotation about the $\hat{z}$ axis and a half-translation along the same $\hat{z}$ axis. The band degeneracy in the node-surface is lifted in BaTaS$_3$ by including strong spin-orbit coupling (SOC) of Ta. The node-surface is reduced into 1D node-lines along the high-symmetry paths $k_x=0$ and $k_x$ = $\pm{\sqrt{3}}k_y$ on the $k_z=π/c$ plane. These node-lines are robust against SOC and guaranteed by the symmetries of $P6_3/mmc$ space group. These node-line states are entirely different from previous proposals which are based on the accidental band touchings. We also propose a useful material design for realizing topological node-surface and node-line semimetals.
description: 11 pages, 7 figures
Carolin Amlinger, Oliver Nachtwey, Gekränkte Freiheit. Aspekte des libertären Autoritarismus, Berlin (Suhrkamp) 2022
Creators: name: Bührer, Werner
Publisher: name: Francia-Recensio
Year: 2023

description: Carolin Amlinger, Oliver Nachtwey, Gekränkte Freiheit. Aspekte des libertären Autoritarismus, Berlin (Suhrkamp) 2022, 478 S., ISBN 978-3-518-43071-2, EUR 28,00.
description: Francia-Recensio, 2023/2
Multifidelity Modeling for Physics-Informed Neural Networks (PINNs)
Creators: name: Penwarden, Michael
name: Zhe, Shandian
name: Narayan, Akil
name: Kirby, Robert M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Multifidelity simulation methodologies are often used in an attempt to judiciously combine low-fidelity and high-fidelity simulation results in an accuracy-increasing, cost-saving way. Candidates for this approach are simulation methodologies for which there are fidelity differences connected with significant computational cost differences. Physics-informed Neural Networks (PINNs) are candidates for these types of approaches due to the significant difference in training times required when different fidelities (expressed in terms of architecture width and depth as well as optimization criteria) are employed. In this paper, we propose a particular multifidelity approach applied to PINNs that exploits low-rank structure. We demonstrate that width, depth, and optimization criteria can be used as parameters related to model fidelity, and show numerical justification of cost differences in training due to fidelity parameter choices. We test our multifidelity scheme on various canonical forward PDE models that have been presented in the emerging PINNs literature.
Memory-aware curriculum federated learning for breast cancer classification
Creators: name: Jiménez-Sánchez, Amelia
name: Tardy, Mickael
name: Ballester, Miguel A. González
name: Mateus, Diana
name: Piella, Gemma
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: For early breast cancer detection, regular screening with mammography imaging is recommended. Routinary examinations result in datasets with a predominant amount of negative samples. A potential solution to such class-imbalance is joining forces across multiple institutions. Developing a collaborative computer-aided diagnosis system is challenging in different ways. Patient privacy and regulations need to be carefully respected. Data across institutions may be acquired from different devices or imaging protocols, leading to heterogeneous non-IID data. Also, for learning-based methods, new optimization strategies working on distributed data are required. Recently, federated learning has emerged as an effective tool for collaborative learning. In this setting, local models perform computation on their private data to update the global model. The order and the frequency of local updates influence the final global model. Hence, the order in which samples are locally presented to the optimizers plays an important role. In this work, we define a memory-aware curriculum learning method for the federated setting. Our curriculum controls the order of the training samples paying special attention to those that are forgotten after the deployment of the global model. Our approach is combined with unsupervised domain adaptation to deal with domain shift while preserving data privacy. We evaluate our method with three clinical datasets from different vendors. Our results verify the effectiveness of federated adversarial learning for the multi-site breast cancer classification. Moreover, we show that our proposed memory-aware curriculum method is beneficial to further improve classification performance. Our code is publicly available at: https://github.com/ameliajimenez/curriculum-federated-learning.
description: Computer Methods and Programs in Biomedicine
A Survey on Data-driven Software Vulnerability Assessment and Prioritization
Creators: name: Le, Triet H. M.
name: Chen, Huaming
name: Babar, M. Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Software Vulnerabilities (SVs) are increasing in complexity and scale, posing great security risks to many software systems. Given the limited resources in practice, SV assessment and prioritization help practitioners devise optimal SV mitigation plans based on various SV characteristics. The surges in SV data sources and data-driven techniques such as Machine Learning and Deep Learning have taken SV assessment and prioritization to the next level. Our survey provides a taxonomy of the past research efforts and highlights the best practices for data-driven SV assessment and prioritization. We also discuss the current limitations and propose potential solutions to address such issues.
description: Accepted for publication in the ACM Computing Surveys journal (CSUR), 2022
PatchRNN: A Deep Learning-Based System for Security Patch Identification
Creators: name: Wang, Xinda
name: Wang, Shu
name: Feng, Pengbin
name: Sun, Kun
name: Jajodia, Sushil
name: Benchaaboun, Sanae
name: Geck, Frank
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: With the increasing usage of open-source software (OSS) components, vulnerabilities embedded within them are propagated to a huge number of underlying applications. In practice, the timely application of security patches in downstream software is challenging. The main reason is that such patches do not explicitly indicate their security impacts in the documentation, which would be difficult to recognize for software maintainers and users. However, attackers can still identify these "secret" security patches by analyzing the source code and generate corresponding exploits to compromise not only unpatched versions of the current software, but also other similar software packages that may contain the same vulnerability due to code cloning or similar design/implementation logic. Therefore, it is critical to identify these secret security patches to enable timely fixes. To this end, we propose a deep learning-based defense system called PatchRNN to automatically identify secret security patches in OSS. Besides considering descriptive keywords in the commit message (i.e., at the text level), we leverage both syntactic and semantic features at the source-code level. To evaluate the performance of our system, we apply it on a large-scale real-world patch dataset and conduct a case study on a popular open-source web server software - NGINX. Experimental results show that the PatchRNN can successfully detect secret security patches with a low false positive rate.
Modulation of homogeneous and isotropic turbulence in emulsions
Creators: name: Crialesi-Esposito, Marco
name: Rosti, Marco Edoardo
name: Chibbaro, Sergio
name: Brandt, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present a numerical study of emulsions in homogeneous and isotropic turbulence at $Re_λ=137$. The problem is addressed via Direct Numerical Simulations (DNS), where the Volume of Fluid (VOF) is used to represent the complex features of the liquid-liquid interface. We consider a mixture of two iso-density fluids, where fluid properties are varied with the goal of understanding their role in turbulence modulation, in particular the volume fraction ($0.03<α<0.5$), viscosity ratio ($0.01<μ_d/μ_c<100$) and large scale Weber number ($10.6
Andrea Albrecht, Lutz Danneberg, Kristina Mateescu, Ralf Klausnitzer (Hg.), Internationale Wissenschaftskommunikation und Nationalsozialismus, Berlin, Boston (De Gruyter Oldenbourg) 2022
Creators: name: Voges, Jonathan
Publisher: name: Francia-Recensio
Year: 2023

description: Andrea Albrecht, Lutz Danneberg, Kristina Mateescu, Ralf Klausnitzer (Hg.), Internationale Wissenschaftskommunikation und Nationalsozialismus. Akademischer Austausch, Konferenzen und Reisen in Geistes- und Kulturwissenschaften 1933 bis 1945, Berlin, Boston (De Gruyter Oldenbourg) 2022, 436 S., 22 Abb., ISBN 978-3-11-073730-1, EUR 102,95.
description: Francia-Recensio, 2023/2
Presentations of projective quantum groups
Creators: name: Gromada, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 20G42 (Primary), 18M25 (Secondary)

description: Given an orthogonal compact matrix quantum group defined by intertwiner relations, we characterize by relations its projective version. As a sample application, we prove that $PU_n^+=PO_n^+$.
description: 10 pages; deleted Sec. 5, corrected some mistakes
Construction of Wave Dark Matter Halos: Numerical Algorithm and Analytical Constraints
Creators: name: Yavetz, Tomer D.
name: Li, Xinyu
name: Hui, Lam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a wave generalization of the classic Schwarzschild method for constructing self-consistent halos -- such a halo consists of a suitable superposition of waves instead of particle orbits, chosen to yield a desired mean density profile. As an illustration, the method is applied to spherically symmetric halos. We derive an analytic relation between the particle distribution function and the wave superposition amplitudes, and show how it simplifies in the high energy (WKB) limit. We verify the stability of such constructed halos by numerically evolving the Schrödinger-Poisson system. The algorithm provides an efficient and accurate way to simulate the time-dependent halo substructures from wave interference. We use this method to construct halos with a variety of density profiles, all of which have a core from the ground-state wave function, though the core-halo relation need not be the standard one.
description: 22 pages, 15 figures; published in Phys. Rev. D
An Ennola duality for subgroups of groups of Lie type
Creators: name: Craven, David A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We develop a theory of Ennola duality for subgroups of finite groups of Lie type, relating subgroups of twisted and untwisted groups of the same type. Roughly speaking, one finds that subgroups $H$ of $\mathrm{GU}_d(q)$ correspond to subgroups of $\mathrm{GL}_d(-q)$, where $-q$ is interpreted modulo $|H|$. Analogous results for types other than $\mathrm A$ are established, including for exceptional types where the maximal subgroups are known, although the result for type $\mathrm D$ is still conjectural. Let $M$ denote the Gram matrix of a non-zero orthogonal form for a real, irreducible representation of a finite group, and consider $α=\sqrt{\det(M)}$. If the representation has twice odd dimension, we conjecture that $α$ lies in some cyclotomic field. This does not hold for representations of dimension a multiple of $4$, with a specific example of the Janko group $\mathrm J_1$ in dimension $56$ given. (This tallies with Ennola duality for representations, where type $\mathrm D_{2n}$ has no Ennola duality with ${}^2\mathrm D_{2n}$.)
Hybrid quadrature moment method for accurate and stable representation of non-Gaussian processes and their dynamics
Creators: name: Charalampopoulos, Alexis-Tzianni
name: Bryngelson, Spencer H.
name: Colonius, Tim
name: Sapsis, Themistoklis P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Solving the population balance equation (PBE) for the dynamics of a dispersed phase coupled to a continuous fluid is expensive. Still, one can reduce the cost by representing the evolving particle density function in terms of its moments. In particular, quadrature-based moment methods (QBMMs) invert these moments with a quadrature rule, approximating the required statistics. QBMMs have been shown to accurately model sprays and soot with a relatively compact set of moments. However, significantly non-Gaussian processes such as bubble dynamics lead to numerical instabilities when extending their moment sets accordingly. We solve this problem by training a recurrent neural network (RNN) that adjusts the QBMM quadrature to evaluate unclosed moments with higher accuracy. The proposed method is tested on a simple model of bubbles oscillating in response to a temporally fluctuating pressure field. The approach decreases model-form error by a factor of 10 when compared to traditional QBMMs. It is both numerically stable and computationally efficient since it does not expand the baseline moment set. Additional quadrature points are also assessed, optimally placed and weighted according to an additional RNN. These points further decrease the error at low cost since the moment set is again unchanged.
Martin Wrede, Gilles Montègre (dir.), Les Rome nouvelles de l’époque moderne, Rennes (Presses universitaires de Rennes) 2022
Creators: name: Chaix, Gérald
Publisher: name: Francia-Recensio
Year: 2023

description: Martin Wrede, Gilles Montègre (dir.), Les Rome nouvelles de l’époque moderne, Rennes (Presses universitaires de Rennes) 2022, 223 p. (Histoire), ISBN 978-2-7535-8622-2, EUR 22,00.
description: Francia-Recensio, 2023/2
Malcolm Walsby, Booksellers and Printers in Provincial France 1470–1600, Leiden (Brill Academic Publishers) 2020
Creators: name: Zwierlein, Cornel
Publisher: name: Francia-Recensio
Year: 2023

description: Malcolm Walsby, Booksellers and Printers in Provincial France 1470–1600, Leiden (Brill Academic Publishers) 2020, X–902 p., 124 fig. (Library of the Written Word, 87; The Handpress World, 68), ISBN 978-90-04-32413-8, EUR 165,00.
description: Francia-Recensio, 2023/2
The structure of low-lying states in ${}^{140}$Sm studied by Coulomb excitation
Creators: name: Klintefjord, M.
name: Hadyńska-Klȩk, K.
name: Görgen, A.
name: Bauer, C.
name: Garrote, F. L. Bello
name: Bönig, S.
name: Bounthong, B.
name: Damyanova, A.
name: Delaroche, J. -P.
name: Fedosseev, V.
name: Fink, D. A.
name: Giacoppo, F.
name: Girod, M.
name: Hoff, P.
name: Imai, N.
name: Korten, W.
name: Larsen, A. C.
name: Libert, J.
name: Lutter, R.
name: Marsh, B. A.
name: Molkanov, P. L.
name: Naïdja, H.
name: Napiorkowski, P.
name: Nowacki, F.
name: Pakarinen, J.
name: Rapisarda, E.
name: Reiter, P.
name: Renstrøm, T.
name: Rothe, S.
name: Seliverstov, M. D.
name: Siebeck, B.
name: Siem, S.
name: Srebrny, J.
name: Stora, T.
name: Thöle, P.
name: Tornyi, T. G.
name: Tveten, G. M.
name: Van Duppen, P.
name: Vermeulen, M. J
name: Voulot, D.
name: Warr, N.
name: Wenander, F.
name: De Witte, H.
name: Zielińska, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The electromagnetic structure of $^{140}$Sm was studied in a low-energy Coulomb excitation experiment with a radioactive ion beam from the REX-ISOLDE facility at CERN. The $2^+$ and $4^+$ states of the ground-state band and a second $2^+$ state were populated by multi-step excitation. The analysis of the differential Coulomb excitation cross sections yielded reduced transition probabilities between all observed states and the spectroscopic quadrupole moment for the $2_1^+$ state. The experimental results are compared to large-scale shell model calculations and beyond-mean-field calculations based on the Gogny D1S interaction with a five-dimensional collective Hamiltonian formalism. Simpler geometric and algebraic models are also employed to interpret the experimental data. The results indicate that $^{140}$Sm shows considerable $γ$ softness, but in contrast to earlier speculation no signs of shape coexistence at low excitation energy. This work sheds more light on the onset of deformation and collectivity in this mass region.
description: 15 pages, 12 figures
Bürgerliches Ritual und kirchliches Ritual bei der Feier von Höhepunkten im Lebenszyklus
Creators: name: Kavanagh, Aidan
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 14 Nr. 2 (1978): Concilium: Internationale Zeitschrift für Theologie, Band 14, Heft 2
Julia Annette Schmidt-Funke, Gunhild Berg, Martin Mulsow (Hg.), Das Schloss als Hörsaal. Ludwig Christian Lichtenbergs »Vorlesung über die Naturlehre« und die residenzstädtische Wissensproduktion um 1800, Stuttgart (Franz Steiner Verlag) 2021
Creators: name: Stöger, Alexander
Publisher: name: Francia-Recensio
Year: 2023

description: Julia Annette Schmidt-Funke, Gunhild Berg, Martin Mulsow (Hg.), Das Schloss als Hörsaal. Ludwig Christian Lichtenbergs »Vorlesung über die Naturlehre« und die residenzstädtische Wissensproduktion um 1800, Stuttgart (Franz Steiner Verlag) 2021, 425 S., 17 Abb. (Gothaer Forschungen zur Frühen Neuzeit, 19), ISBN 978-3-515-12664-9, EUR 70,00.
description: Francia-Recensio, 2023/2
The Kloosterman circle method and weighted representation numbers of positive definite quadratic forms
Creators: name: Jones, Edna Luo
Publisher: name: No Publisher Supplied
Year: 2022

description: We develop a version of the Kloosterman circle method with a bump function that is used to provide asymptotics for weighted representation numbers of positive definite integral quadratic forms. Unlike many applications of the Kloosterman circle method, we explicitly state some constants in the error terms that depend on the quadratic form. This version of the Kloosterman circle method uses Gauss sums, Kloosterman sums, Salié sums, and a principle of nonstationary phase. We briefly discuss a potential application of this version of the Kloosterman circle method to a proof of a strong asymptotic local-global principle for certain Kleinian sphere packings.