cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Majorana bound state engineering via efficient real-space parameter optimization
Creators: name: Boutin, Samuel
name: Lemyre, Julien Camirand
name: Garate, Ion
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent progress toward the fabrication of Majorana-based qubits has sparked the need for systematic approaches to optimize experimentally relevant parameters for the realization of robust Majorana bound states. Here, we introduce an efficient numerical method for the real-space optimization of tunable parameters, such as electrostatic potential profiles and magnetic field textures, in Majorana wires. Combining ideas from quantum control and quantum transport, our algorithm, applicable to any noninteracting tight-binding model, operates on a largely unexplored parameter space and opens new routes for Majorana bound states with enhanced robustness. Contrary to common belief, we find that spatial inhomogeneities of parameters can be a resource for the engineering of Majorana bound states.
description: 15 pages including appendices, 11 figures
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Cart. 190 (11 H 75), 316 folios, f. 0089v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0089v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0089v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
A Credit Market Theory of the Money Supply and an Explanation of Two Puzzles in U.S. Monetary Policy
Creators: name: Brunner, Karl
name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1993
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Federal Reserve policy in the early postwar years has frequently been described as an "engine of inflation". Continuation of the wartime policy of supporting the government bond market required the central bank to absorb securities sold by the private sector. Given the large stock of government securities left as a residue of wartime finance, the expectation that the support policy would lead to inflation was quite reasonable. The puzzling feature about the period is that substantial inflation did not occur. Instead, the growth rates of the money supply and of the monetary base collapsed shortly after the end of World War II. By 1949, the economy had moved to a position in which the policy problem was one of removing recession and deflation. Despite the continuation of the support policy, prices in 1949 were falling, not rising.
The G-dwarf problem in the Galaxy
Creators: name: Caimmi, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The empirical differential metallicity distribution (EDMD) is deduced for (i) local thick disk stars; (ii) likely metal-weak thick disk stars; (iii) chemically selected local G dwarfs, with the corrections performed in order to take into account the stellar scale height; in addition to previous results related to (iv) solar neighbourhood halo subdwarfs; and (v) K-giant bulge stars. The thick disk is conceived as made of two distinct regions: the halo-like and the bulge-like thick disk, and the related EDMD is deduced. Under the assumption that each distribution is typical for the corresponding subsystem, the EDMD of the thick disk, the thick + thin disk, and the Galaxy, is determined by weighting the mass. Models of chemical evolution are computed for each subsystem assuming the instantaneous recycling approximation. The EDMD data are reasonably fitted by simple models implying both homogeneous and inhomogeneous star formation, provided that star formation is inhibited during thick disk evolution. The initial mass function (IMF) is assumed to be a universal power law, which implies an unchanged true yield in different subsystems. The theoretical differential metallicity distribution (TDMD) is first determined for the halo-like thich disk, the bulge-like thick disk, and the thin disk separately, and then for the Galaxy by weighting the mass. An indicative comparison is performed between the EDMD deduced for the disk both in presence and in absence of [O/Fe] plateau, and its counterpart computed for (vi) nearby stars for which the oxygen abundance has been determined both in presence and in absence of the local thermodynamical equilibrium (LTE) approximation. Both distributions are found to exhibit a similar trend, though systematic differences exist.
description: 63 pages, 13 figures
Interatomic interaction at the aluminum-fullerene $\mathrm{C}_{60}$ interface
Creators: name: Reshetniak, V. V.
name: Reshetniak, O. B.
name: Aborkin, A. V.
name: Filippov, A. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a model describing the interatomic interaction at the interface between fullerene $\mathrm{C}_{60}$ and aluminum. Using the density functional theory, we calculate the binding energy and the fullerene's position on the $\mathrm{Al}(111)$ slab. The obtained data are applied to estimate the parameters of the Lennard-Jones potential for carbon and aluminum atoms, which is then used in molecular dynamics simulations. The results of the theoretical study of desorption of fullerenes from an aluminum substrate are in good agreement with those of the experiments from the literature. We also investigate the capillary effects in an aluminum melt with submerged fullerenes. The positive interface surface energy indicates the poor wettability of $\mathrm{C}_{60}$ by the melt. The calculated value of the diffusion relaxation time is approximately two orders of magnitude less than the characteristic coagulation time of fullerenes. The activation character of the coagulation process and the capillary nature of the interaction between fullerenes are discussed.
description: 15 pages, 9 figures
A Simple Model of Large Scale Structure Formation
Creators: name: Schaefer, R. K.
name: Shafi, Q.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore constraints on inflationary models employing data on large scale structure mainly from COBE temperature anisotropies and IRAS selected galaxy surveys, taking care not to apply linear perturbation theory to data in the non-linear regime. In models where the tensor contribution to the COBE signal is negligible, we find the spectral index of density fluctuations $n$ must exceed 0.7. Furthermore the COBE signal cannot be dominated by the tensor component, implying $n>0.85$ in such models. The data favors cold plus hot dark matter models with $n$ close to unity and $Ω_{HDM} \sim 0.20 - 0.35$. We present realistic grand unified theories, including supersymmetric versions, which produce inflation with these properties.
description: 42 pages, in REVTEX 3.0. 9 figures available from authors
Reduced order models for nonlinear radiative transfer based on moment equations and POD/DMD of Eddington tensor
Creators: name: Coale, Joseph M.
name: Anistratov, Dmitriy Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: A new group of reduced-order models (ROMs) for nonlinear thermal radiative transfer (TRT) problems is presented. They are formulated by means of the nonlinear projective approach and data compression techniques. The nonlinear projection is applied to the Boltzmann transport equation (BTE) to derive a hierarchy of low-order moment equations. The Eddington (quasidiffusion) tensor that provides exact closure for the system of moment equations is approximated via one of several data-based methods of model-order reduction. These methods are the (i) proper orthogonal decomposition, (ii) dynamic mode decomposition (DMD), (iii) an equilibrium-subtracted DMD variant. Numerical results are presented to demonstrate the performance of these ROMs for the simulation of evolving radiation and heat waves. Results show these models to be accurate even with very low-rank representations of the Eddington tensor. As the rank of the approximation is increased, the errors of solutions generated by the ROMs gradually decreases.
description: 33 pages, 19 figures, 4 tables
Toward Empirical Constraints on the Global Redshifted 21 cm Brightness Temperature During the Epoch of Reionization
Creators: name: Bowman, Judd D.
name: Rogers, Alan E. E.
name: Hewitt, Jacqueline N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Preliminary results are presented from a simple, single-antenna experiment designed to measure the all-sky radio spectrum between 100 and 200 MHz. The system used an internal comparison-switching scheme to reduce non-smooth instrumental contaminants in the measured spectrum to 75 mK. From the observations, we place an initial upper limit of 450 mK on the relative brightness temperature of the redshifted 21 cm contribution to the spectrum due to neutral hydrogen in the intergalactic medium (IGM) during the epoch of reionization, assuming a rapid transition to a fully ionized IGM at a redshift of 8. With refinement, this technique should be able to distinguish between slow and fast reionization scenarios. To constrain the duration of reionization to dz > 2, the systematic residuals in the measured spectrum must be reduced to 3 mK.
description: Submitted to ApJ. 9 pages including 6 figures
A Counterexample to a Conjecture of Gomory and Johnson
Creators: name: Basu, Amitabh
name: Conforti, Michele
name: Cornuejols, Gerard
name: Zambelli, Giacomo
Publisher: name: Carnegie Mellon University
Year: 1999
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: In Mathematical Programming 2003, Gomory and Johnson conjecture that the facets of the infinite group problem are always generated by piecewise linear functions. In this paper we give an example showing that the Gomory-Johnson conjecture is false.
Learning to Control DC Motor for Micromobility in Real Time with Reinforcement Learning
Creators: name: Poudel, Bibek
name: Watson, Thomas
name: Li, Weizi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Autonomous micromobility has been attracting the attention of researchers and practitioners in recent years. A key component of many micro-transport vehicles is the DC motor, a complex dynamical system that is continuous and non-linear. Learning to quickly control the DC motor in the presence of disturbances and uncertainties is desired for various applications that require robustness and stability. Techniques to accomplish this task usually rely on a mathematical system model, which is often insufficient to anticipate the effects of time-varying and interrelated sources of non-linearities. While some model-free approaches have been successful at the task, they rely on massive interactions with the system and are trained in specialized hardware in order to fit a highly parameterized controller. In this work, we learn to steer a DC motor via sample-efficient reinforcement learning. Using data collected from hardware interactions in the real world, we additionally build a simulator to experiment with a wide range of parameters and learning strategies. With the best parameters found, we learn an effective control policy in one minute and 53 seconds on a simulation and in 10 minutes and 35 seconds on a physical system.
description: 7 pages, 3 figures
title: ADCO, Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Cart. 179 (11 H 1075), 70 folios, f. 0096
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: CG21/F.PETOT/2015
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 179 (11 H 1075), 70 folios, f. 0096, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Saulon-la-Chapelle et Saulon-la-Rue, Fénay, Noiron et la rivière Cent-fonds (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 179 (11 H 1075), 70 folios, f. 0096, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Black Holes as Quantum Gravity Condensates
Creators: name: Oriti, Daniele
name: Pranzetti, Daniele
name: Sindoni, Lorenzo
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We model spherically symmetric black holes within the group field theory formalism for quantum gravity via generalised condensate states, involving sums over arbitrarily refined graphs (dual to 3d triangulations). The construction relies heavily on both the combinatorial tools of random tensor models and the quantum geometric data of loop quantum gravity, both part of the group field theory formalism. Armed with the detailed microscopic structure, we compute the entropy associated with the black hole horizon, which turns out to be equivalently the Boltzmann entropy of its microscopic degrees of freedom and the entanglement entropy between the inside and outside regions. We recover the area law under very general conditions, as well as the Bekenstein-Hawking formula. The result is also shown to be generically independent of any specific value of the Immirzi parameter.
description: 22 pages
Longitudinal Network Models and Permutation-Uniform Markov Chains
Creators: name: Schwartz, William K.
name: Petrović, Sonja
name: Kaul, Hemanshu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 60J10 (Primary), 05C80, 60B20, 62M05, 62M02, 62B05, 62F10, 60F99, 60G50, 62R01 (Secondary)

description: Consider longitudinal networks whose edges turn on and off according to a discrete-time Markov chain with exponential-family transition probabilities. We characterize when their joint distributions are also exponential families with the same parameter, improving data reduction. Further we show that the permutation-uniform subclass of these chains permit interpretation as an independent, identically distributed sequence on the same state space. We then apply these ideas to temporal exponential random graph models, for which permutation uniformity is well suited, and discuss mean-parameter convergence, dyadic independence, and exchangeability. Our framework facilitates our introducing a new network model; simplifies analysis of some network and autoregressive models from the literature, including by permitting closed-form expressions for maximum likelihood estimates for some models; and facilitates applying standard tools to longitudinal-network Markov chains from either asymptotics or single-observation exponential random graph models.
description: 22 pages plus references and appendices. This is the accepted version of the final published article
On a definition of logarithm of quaternionic functions
Creators: name: Gentili, Graziano
name: Prezelj, Jasna
name: Vlacci, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30G35, 32A30, 33B10

description: For a slice--regular quaternionic function $f,$ the classical exponential function $\exp f$ is not slice--regular in general. An alternative definition of exponential function, the $*$-exponential $\exp_*$, was given: if $f$ is a slice--regular function, then $\exp_*(f)$ is a slice--regular function as well. The study of a $*$-logarithm $\log_*(f)$ of a slice--regular function $f$ becomes of great interest for basic reasons, and is performed in this paper. The main result shows that the existence of such a $\log_*(f)$ depends only on the structure of the zero set of the vectorial part $f_v$ of the slice--regular function $f=f_0+f_v$, besides the topology of its domain of definition. We also show that, locally, every slice--regular nonvanishing function has a $*$-logarithm and, at the end, we present an example of a nonvanishing slice--regular function on a ball which does not admit a $*$-logarithm on that ball.
Three-body decays of sleptons in models with non-universal Higgs masses
Creators: name: Kraml, S.
name: Nhung, D. T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the three-body decays of charged sleptons and sneutrinos into other sleptons. These decays are of particular interest in SUSY-breaking models with non-universal Higgs mass parameters, where the left-chiral sleptons can be lighter than the right-chiral ones, and lighter than the lightest neutralino. We present the formulas for the three-body decay widths together with a numerical analysis in the context of gaugino-mediated SUSY breaking with a gravitino LSP.
description: Version published in JHEP. See http://cern.ch/kraml/papers/ for high-res figures
A cost operator approach to multistage location-allocation
Creators: name: Nagelhout, Robert V.
name: Thompson, Gerald Luther
name: Carnegie Mellon UniversityDesign Research Center
Publisher: name: Carnegie Mellon University
Year: 1997
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Tepper School of Business
Traced monoidal categories as algebraic structures in $\mathbf{Prof}$
Creators: name: Hu, Nick
name: Vicary, Jamie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18M10, 18M30, 18D60, 18D70

description: We define a traced pseudomonoid as a pseudomonoid in a monoidal bicategory equipped with extra structure, giving a new characterisation of Cauchy complete traced monoidal categories as algebraic structures in $\mathbf{Prof}$, the monoidal bicategory of profunctors. This enables reasoning about the trace using the graphical calculus for monoidal bicategories, which we illustrate in detail. We apply our techniques to study traced $*$-autonomous categories, proving a new equivalence result between the left $\otimes$-trace and the right $\unicode{8523}$-trace, and describing a new condition under which traced $*$-autonomous categories become autonomous.
Realtime Time Synchronized Event-based Stereo
Creators: name: Zhu, Alex Zihao
name: Chen, Yibo
name: Daniilidis, Kostas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this work, we propose a novel event based stereo method which addresses the problem of motion blur for a moving event camera. Our method uses the velocity of the camera and a range of disparities to synchronize the positions of the events, as if they were captured at a single point in time. We represent these events using a pair of novel time synchronized event disparity volumes, which we show remove motion blur for pixels at the correct disparity in the volume, while further blurring pixels at the wrong disparity. We then apply a novel matching cost over these time synchronized event disparity volumes, which both rewards similarity between the volumes while penalizing blurriness. We show that our method outperforms more expensive, smoothing based event stereo methods, by evaluating on the Multi Vehicle Stereo Event Camera dataset.
description: 13 pages, 3 figures, 1 table. Video: https://youtu.be/4oa7e4hsrYo. Updated with final version with additional experiments
On velocity-dependent dark matter annihilations in dwarf satellites
Creators: name: Petac, Mihael
name: Ullio, Piero
name: Valli, Mauro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Milky Way dwarf spheroidal satellites are a prime target for Dark Matter (DM) indirect searches. There have been recent reassessments of the expected DM gamma-ray signals in case of long-range interactions, commonly known as Sommerfeld enhancement. Since details of the underlying DM phase-space distribution function become critical, there are potentially large uncertainties in the final result. We provide here a first attempt towards a comprehensive investigation of these systematics, addressing the impact on the expected DM flux from Milky Way dwarfs via Bayesian inference on the available stellar kinematic datasets. After reconsidering the study case of ergodic systems, we investigate for the first time scenarios where DM particle orbits may have a radial or tangential bias. We consider both cuspy and cored parametric DM density profiles, together with the case of a non-parametric halo modelling directly connected to line-of-sight observable quantities. The main findings of our work highlight the relevance of the assumed phase-space distribution: Referring to a generalized J-factor, namely the line-of-sight convolution of the spatial part in case of velocity-dependent annihilation rate, an enhancement (suppression) with respect to the limit of isotropic phase-space distributions is obtained for the case of tangentially (radially) biased DM particle orbits. We provide new estimates for J-factors for the eight brightest Milky Way dwarfs also in the limit of velocity-independent DM annihilation, in good agreement with previous results in literature, and derive data-driven lower-bounds based on the non-parametric modelling of the halo density. The outcome of our broad study stands out as a representative of the state-of-the-art in the field, and falls within the interest of current and future experimental collaborations involved in DM indirect detection programs.
description: 31 pages, 8 figures, 1 table. Comments are welcome
Probing clumpy stellar winds with a neutron star
Creators: name: Walter, R.
name: Heras, J. Zurita
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: INTEGRAL, the European Space Agency's gamma-ray observatory, tripled the number of super-giant high-mass X-ray binaries (sgHMXB) known in the Galaxy by revealing absorbed and fast transient (SFXT) systems. In these sources, quantitative constraints on the wind clumping of the massive stars could be obtained from the study of the hard X-ray variability of the compact accreting object. Hard X-ray flares and quiescent emission of SFXT systems have been characterized and used to derive wind clump parameters. A large fraction of the hard X-ray emission is emitted in the form of flares with a typical duration of 3 ks, frequency of 7 days and luminosity of 1E36 erg/s. Such flares are most probably emitted by the interaction of a compact object orbiting at ~10 R* with wind clumps (1E(22-23) g) representing a large fraction of the stellar mass-loss rate. The density ratio between the clumps and the inter-clump medium is 1E(2-4) in SFXT systems. The parameters of the clumps and of the inter-clump medium, derived from the SFXT flaring behavior, are in good agreement with macro-clumping scenario and line driven instability simulations. SFXT have probably a larger orbital radius than classical sgHMXB.
description: 8 pages
Adaptive variational Bayes: Optimality, computation and applications
Creators: name: Ohn, Ilsang
name: Lin, Lizhen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, we explore adaptive inference based on variational Bayes. Although several studies have been conducted to analyze the contraction properties of variational posteriors, there is still a lack of a general and computationally tractable variational Bayes method that performs adaptive inference. To fill this gap, we propose a novel adaptive variational Bayes framework, which can operate on a collection of models. The proposed framework first computes a variational posterior over each individual model separately and then combines them with certain weights to produce a variational posterior over the entire model. It turns out that this combined variational posterior is the closest member to the posterior over the entire model in a predefined family of approximating distributions. We show that the adaptive variational Bayes attains optimal contraction rates adaptively under very general conditions. We also provide a methodology to maintain the tractability and adaptive optimality of the adaptive variational Bayes even in the presence of an enormous number of individual models, such as sparse models. We apply the general results to several examples, including deep learning and sparse factor models, and derive new and adaptive inference results. In addition, we characterize an implicit regularization effect of variational Bayes and show that the adaptive variational posterior can utilize this.
A New Outer Bound and the Noisy-Interference Sum-Rate Capacity for Gaussian Interference Channels
Creators: name: Shang, Xiaohu
name: Kramer, Gerhard
name: Chen, Biao
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: A new outer bound on the capacity region of Gaussian interference channels is developed. The bound combines and improves existing genie-aided methods and is shown to give the sum-rate capacity for noisy interference as defined in this paper. Specifically, it is shown that if the channel coefficients and power constraints satisfy a simple condition then single-user detection at each receiver is sum-rate optimal, i.e., treating the interference as noise incurs no loss in performance. This is the first concrete (finite signal-to-noise ratio) capacity result for the Gaussian interference channel with weak to moderate interference. Furthermore, for certain mixed (weak and strong) interference scenarios, the new outer bounds give a corner point of the capacity region.
description: 20 pages, 8 figures, submitted to IEEE Trans. Inform. Theory,
Can phones, syllables, and words emerge as side-products of cross-situational audiovisual learning? -- A computational investigation
Creators: name: Khorrami, Khazar
name: Räsänen, Okko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.2.0; I.2.6; I.2.7; I.2.10

description: Decades of research has studied how language learning infants learn to discriminate speech sounds, segment words, and associate words with their meanings. While gradual development of such capabilities is unquestionable, the exact nature of these skills and the underlying mental representations yet remains unclear. In parallel, computational studies have shown that basic comprehension of speech can be achieved by statistical learning between speech and concurrent referentially ambiguous visual input. These models can operate without prior linguistic knowledge such as representations of linguistic units, and without learning mechanisms specifically targeted at such units. This has raised the question of to what extent knowledge of linguistic units, such as phone(me)s, syllables, and words, could actually emerge as latent representations supporting the translation between speech and representations in other modalities, and without the units being proximal learning targets for the learner. In this study, we formulate this idea as the so-called latent language hypothesis (LLH), connecting linguistic representation learning to general predictive processing within and across sensory modalities. We review the extent that the audiovisual aspect of LLH is supported by the existing computational studies. We then explore LLH further in extensive learning simulations with different neural network models for audiovisual cross-situational learning, and comparing learning from both synthetic and real speech data. We investigate whether the latent representations learned by the networks reflect phonetic, syllabic, or lexical structure of input speech by utilizing an array of complementary evaluation metrics related to linguistic selectivity and temporal characteristics of the representations. As a result, we find that representations associated...
description: Final manuscript published in Language Development Research under CC BY-NC-SA 4.0. Pre-print redistributed through arXiv with permission. Replaces corrupted PsyArXiv pre-print repository at https://psyarxiv.com/37zna
Tailed Radio Galaxies from the TIFR GMRT Sky Survey
Creators: name: Bhukta, Netai
name: Mondal, Sushanta K.
name: Pal, Sabyasachi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a list of candidate tailed radio galaxies using the TIFR GMRT Sky Survey Alternative Data Release 1 (TGSS ADR1) at 150 MHz. We have visually examined 5336 image fields and found 264 candidates for the tailed galaxy. Tailed radio galaxies are classified as Wide Angle Tailed (WAT) galaxies and Narrow-Angle Tailed (NAT) galaxies, based on the angle between the two jets of the galaxy. We found a sample of tailed radio galaxies which includes 203 `WAT' and 61 `NAT' type sources. These newly identified tailed sources are significant additions to the list of known tailed radio galaxies. The source morphology and luminosity features of the different candidate galaxies and their optical identifications are presented in the paper. Other radio properties and general features of the sources are also discussed.
Successfully developing advanced practitioner roles: policy and practice mechanisms
Creators: name: Officer, Tara
name: Cumming, Jacqueline
name: McBride-Henry, Karen
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: subject: 160599 Policy and Administration not elsewhere classified
subject: FOS: Political science

description: Purpose: The purpose of this paper is to lay out how advanced practitioner development occurs in New Zealand primary health care settings. The paper specifically focuses on mechanisms occurring across policy creation and in practice leading to successful role development. Design/methodology/approach: The authors applied a realist approach involving interviews, document review and field log observations to create refined theories explaining how successful development occurs. Findings: Three final mechanisms were found to influence successful advanced practitioner role development: engagement in planning and integrating roles; establishing opportunities as part of a well-defined career pathway; and championing role uptake and work to full scopes of practice. Research limitations/implications: This research focuses on one snapshot in time only; it illustrates the importance of actively managing health workforce change. Future investigations should involve the continued and systematic evaluation of advanced practitioner development. Practical implications: The successful development of advanced practitioner roles in a complex system necessitates recognising how to trigger mechanisms occurring at times well beyond their introduction. Social implications: Potential candidates for new roles should expect roadblocks in their development journey. Successfully situating these roles into practice through having a sustainable and stable workforce supply provides patients with access to a wider range of services. Originality/value: This is the first time a realist evaluation has been undertaken, in New Zealand, of similar programmes operating across multiple sites. The paper brings insights into the process of developing new health programmes within an already established system.
IN03070 Mäḍirigiriya Pillar Inscription
Creators: name: Wickremasinghe, Don Martino de Zilva
Publisher: name: Zenodo
Year: 2019
Subjects: IN03070
Epigraphia Zeylanica
Mäḍirigiriya

description: IN03070 Mäḍirigiriya Pillar Inscription - Transcript and Translation Source: Wickremasinghe, Don Martino de Zilva. (1912-27). ‘No. 6. Mäḍirigiriya Pillar-Inscription,’ Epigraphia Zeylanica 2, pp. 25-33.
Black-box Adversarial Attacks on Network-wide Multi-step Traffic State Prediction Models
Creators: name: Poudel, Bibek
name: Li, Weizi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Traffic state prediction is necessary for many Intelligent Transportation Systems applications. Recent developments of the topic have focused on network-wide, multi-step prediction, where state of the art performance is achieved via deep learning models, in particular, graph neural network-based models. While the prediction accuracy of deep learning models is high, these models' robustness has raised many safety concerns, given that imperceptible perturbations added to input can substantially degrade the model performance. In this work, we propose an adversarial attack framework by treating the prediction model as a black-box, i.e., assuming no knowledge of the model architecture, training data, and (hyper)parameters. However, we assume that the adversary can oracle the prediction model with any input and obtain corresponding output. Next, the adversary can train a substitute model using input-output pairs and generate adversarial signals based on the substitute model. To test the attack effectiveness, two state of the art, graph neural network-based models (GCGRNN and DCRNN) are examined. As a result, the adversary can degrade the target model's prediction accuracy up to $54\%$. In comparison, two conventional statistical models (linear regression and historical average) are also examined. While these two models do not produce high prediction accuracy, they are either influenced negligibly (less than $3\%$) or are immune to the adversary's attack.
description: Accepted to IEEE International Conference on Intelligent Transportation Systems (ITSC), 2021
A Convex-Analysis Perspective on Disjunctive Cuts
Creators: name: Cornuejols, Gerard
name: Lemaréchal, Claude
Publisher: name: Carnegie Mellon University
Year: 1983
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: We treat the general problem of cutting planes with tools from convex analysis. We emphasize the case of disjunctive polyhedra and the generation of facets. We conclude with some considerations on the design of efficient cut generators.
A Constant-Factor Approximation Algorithm for the k-MST Problem
Creators: name: Avrim Blum
name: Ramamoorthi Ravi
name: Vempala, Santosh
Publisher: name: Carnegie Mellon University
Year: 1996
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Given an undirected graph with nonnegative edge costs and an integerk, the k-MST problem is that of finding a tree of minimum cost on k nodes. This problem is known to be NP-hard. We present a simple approximation algorithm that finds a solution whose cost is less than 17 times the cost of the optimum. This improves upon previous performance ratios for this problem −O(√k) due to Raviet al.,O(log2 k) due to Awerbuchet al., and the previous best bound of O(log k) due to Rajagopalan and Vazirani. Given any 02log2 n) on an n-node graph. We then show how to use this algorithm to derive a constant factor approximation algorithm for the k-MST problem. The main subroutine in our algorithm is an approximation algorithm of Goemans and Williamson for the prize-collecting Steiner tree problem.
Dynamics of Magnetized Spherical Accretion Flows
Creators: name: Shcherbakov, Roman V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Transonic accretion flow with self-consistent treatment of random magnetic field is presented.
description: in proceedings to "Astrophysics of Compact Objects", Huangshan, China, 2007
SMASHing the LMC: A Tidally-induced Warp in the Outer LMC and a Large-scale Reddening Map
Creators: name: Choi, Yumi
name: Nidever, David L.
name: Olsen, Knut
name: Blum, Robert D.
name: Besla, Gurtina
name: Zaritsky, Dennis
name: van der Marel, Roeland P.
name: Bell, Eric F.
name: Gallart, Carme
name: Cioni, Maria-Rosa L.
name: Johnson, L. Clifton
name: Vivas, A. Katherina
name: Saha, Abhijit
name: de Boer, Thomas J. L.
name: Noel, Noelia E. D.
name: Monachesi, Antonela
name: Massana, Pol
name: Conn, Blair C.
name: Martinez-Delgado, David
name: Munoz, Ricardo R.
name: Stringfellow, Guy
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study of the three-dimensional (3D) structure of the Large Magellanic Cloud (LMC) using ~2.2 million red clump (RC) stars selected from the Survey of the MAgellanic Stellar History. To correct for line-of-sight dust extinction, the intrinsic RC color and magnitude and their radial dependence are carefully measured by using internal nearly dust-free regions. These are then used to construct an accurate 2D reddening map (165 square degrees with ~10 arcmin resolution) of the LMC disk and the 3D spatial distribution of RC stars. An inclined disk model is fit to the 2D distance map yielding a best-fit inclination angle i = 25.86(+0.73,-1.39) degrees with random errors of +\-0.19 degrees and line-of-nodes position angle theta = 149.23(+6.43,-8.35) degrees with random errors of +/-0.49 degrees. These angles vary with galactic radius, indicating that the LMC disk is warped and twisted likely due to the repeated tidal interactions with the Small Magellanic Cloud (SMC). For the first time, our data reveal a significant warp in the southwestern part of the outer disk starting at rho ~ 7 degrees that departs from the defined LMC plane up to ~4 kpc toward the SMC, suggesting that it originated from a strong interaction with the SMC. In addition, the inner disk encompassing the off-centered bar appears to be tilted up to 5-15 degrees relative to the rest of the LMC disk. These findings on the outer warp and the tilted bar are consistent with the predictions from the Besla et al. simulation of a recent direct collision with the SMC.
description: 25 pages, 15 figures, published in ApJ
A Connection between Cutting Plane Theory and the Geometry of Numbers
Creators: name: Cornuejols, Gerard
name: Yanjun  Li
Publisher: name: Carnegie Mellon University
Year: 2008
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: In this paper, we relate several questions about cutting planes to a fundamental problem in the geometry of numbers, namely, the closest vector problem. Using this connection we show that the dominance, membership and validity problems are NP-complete for Chvátal and split cuts.
Learning-Based Importance Sampling via Stochastic Optimal Control for Stochastic Reaction Networks
Creators: name: Hammouda, Chiheb Ben
name: Rached, Nadhir Ben
name: Tempone, Raúl
name: Wiechert, Sophia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: Quantitative Methods (q-bio.QM)
subject: Computation (stat.CO)
subject: FOS: Mathematics
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: 60H35, 60J75, 65C05, 93E20

description: We explore efficient estimation of statistical quantities, particularly rare event probabilities, for stochastic reaction networks. Consequently, we propose an importance sampling (IS) approach to improve the Monte Carlo (MC) estimator efficiency based on an approximate tau-leap scheme. The crucial step in the IS framework is choosing an appropriate change of probability measure to achieve substantial variance reduction. This task is typically challenging and often requires insights into the underlying problem. Therefore, we propose an automated approach to obtain a highly efficient path-dependent measure change based on an original connection in the stochastic reaction network context between finding optimal IS parameters within a class of probability measures and a stochastic optimal control formulation. Optimal IS parameters are obtained by solving a variance minimization problem. First, we derive an associated dynamic programming equation. Analytically solving this backward equation is challenging, hence we propose an approximate dynamic programming formulation to find near-optimal control parameters. To mitigate the curse of dimensionality, we propose a learning-based method to approximate the value function using a neural network, where the parameters are determined via a stochastic optimization algorithm. Our analysis and numerical experiments verify that the proposed learning-based IS approach substantially reduces MC estimator variance, resulting in a lower computational complexity in the rare event regime, compared with standard tau-leap MC estimators.
Bounds on the mass-to-radius ratio for non-compact field configurations
Creators: name: Hod, Shahar
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is well known that a spherically symmetric compact star whose energy density decreases monotonically possesses an upper bound on its mass-to-radius ratio, $2M/R\leq 8/9$. However, field configurations typically will not be compact. Here we investigate non-compact static configurations whose matter fields have a slow global spatial decay, bounded by a power law behavior. These matter distributions have no sharp boundaries. We derive an upper bound on the fundamental ratio max_r{2m(r)/r} which is valid throughout the bulk. In its simplest form, the bound implies that in any region of spacetime in which the radial pressure increases, or alternatively decreases not faster than some power law $r^{-(c+4)}$, one has $2m(r)/r \leq (2+2c)/(3+2c)$. [For $c \leq 0$ the bound degenerates to $2m(r)/r \leq 2/3$.] In its general version, the bound is expressed in terms of two physical parameters: the spatial decaying rate of the matter fields, and the highest occurring ratio of the trace of the pressure tensor to the local energy density.
description: 4 pages
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 0035
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0035, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0035, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019