cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Operations on Milnor-Witt K-theory
Creators: name: Wittich, Thor
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 19D45 (Primary) 14F42, 55Q35, 55Q45, 55S25 (Secondary)

description: For all positive integers $n$ and all homotopy modules $M_*$, we define certain operations $\underline{\operatorname{K}}^{\operatorname{MW}}_n \rightarrow M_*$ and show that these generate the $M_*(k)$-module of all (in general non-additive) operations $\underline{\operatorname{K}}^{\operatorname{MW}}_n \rightarrow M_*$ in a suitable sense, if $M_*$ is $\mathbb{N}$-graded and has a ring structure. This also allows us to explicitly compute the abelian group $\operatorname{Op}(\underline{\operatorname{K}}^{\operatorname{MW}}_n,\underline{\operatorname{K}}^{\operatorname{MW}}_m)$ and all operations between related theories such as Milnor, Witt and Milnor-Witt K-theory.
description: 31 pages
Forte: An Interactive Visual Analytic Tool for Trust-Augmented Net Load Forecasting
Creators: name: Bhattacharjee, Kaustav
name: Kundu, Soumya
name: Chakraborty, Indrasis
name: Dasgupta, Aritra
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Accurate net load forecasting is vital for energy planning, aiding decisions on trade and load distribution. However, assessing the performance of forecasting models across diverse input variables, like temperature and humidity, remains challenging, particularly for eliciting a high degree of trust in the model outcomes. In this context, there is a growing need for data-driven technological interventions to aid scientists in comprehending how models react to both noisy and clean input variables, thus shedding light on complex behaviors and fostering confidence in the outcomes. In this paper, we present Forte, a visual analytics-based application to explore deep probabilistic net load forecasting models across various input variables and understand the error rates for different scenarios. With carefully designed visual interventions, this web-based interface empowers scientists to derive insights about model performance by simulating diverse scenarios, facilitating an informed decision-making process. We discuss observations made using Forte and demonstrate the effectiveness of visualization techniques to provide valuable insights into the correlation between weather inputs and net load forecasts, ultimately advancing grid capabilities by improving trust in forecasting models.
description: Accepted for publication in the proceedings of 2024 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference, North America (ISGT NA)
The Number of Overlapping Customers in Erlang-A Queues: An Asymptotic Approach
Creators: name: Ko, Young Myoung
name: Pender, Jamol
name: Xu, Jin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Probability (math.PR)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper, we investigate the number of customers that overlap or coincide with a virtual customer in an Erlang-A queue. Our study provides a novel approach that exploits fluid and diffusion limits for the queue to approximate the mean and variance of the number of overlapping customers. We conduct a detailed analysis of the fluid and diffusion limit differential equations to derive these approximations. We also construct new accurate approximations for the mean and variance of the waiting time in the Erlang-A queue by combining fluid limits with the polygamma function. Our findings have important implications for queueing theory and evaluating the overlap risk of more complicated service systems.
Main sequence of star forming galaxies beyond the Herschel confusion limit
Creators: name: Pearson, W. J.
name: Wang, L.
name: Hurley, P. D.
name: Małek, K.
name: Buat, V.
name: Burgarella, D.
name: Farrah, D.
name: Oliver, S. J.
name: Smith, D. J. B.
name: van der Tak, F. F. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Deep far-infrared (FIR) cosmological surveys are known to be affected by source confusion, causing issues when examining the main sequence (MS) of star forming galaxies. This has typically been partially tackled by the use of stacking. However, stacking only provides the average properties of the objects in the stack. This work aims to trace the MS over $0.2\leq z<6.0$ using the latest de-blended Herschel photometry, which reaches $\approx10$ times deeper than the 5$σ$ confusion limit in SPIRE. This provides more reliable star formation rates (SFRs), especially for the fainter galaxies, and hence a more reliable MS. We built a pipeline that uses the spectral energy distribution (SED) modelling and fitting tool CIGALE to generate flux density priors in the Herschel SPIRE bands. These priors were then fed into the de-blending tool XID+ to extract flux densities from the SPIRE maps. Multi-wavelength data were combined with the extracted SPIRE flux densities to constrain SEDs and provide stellar mass (M$_{\star}$) and SFRs. These M$_{\star}$ and SFRs were then used to populate the SFR-M$_{\star}$ plane over $0.2\leq z<6.0$. No significant evidence of a high-mass turn-over was found; the best fit is thus a simple two-parameter power law of the form log(SFR)$=α[$log(M$_{\star})-10.5]+β$. The normalisation of the power law increases with redshift, rapidly at $z\lesssim1.8$, from $0.58\pm0.09$ at $z\approx0.37$ to $1.31\pm0.08$ at $z\approx1.8$. The slope is also found to increase with redshift, perhaps with an excess around $1.8\leq z<2.9$. The increasing slope indicates that galaxies become more self-similar as redshift increases, implying that the specific SFR of high-mass galaxies increases over $z=0.2$ to $z=6.0$, becoming closer to that of low-mass galaxies. The excess in the slope at $1.8\leq z<2.9$, if present, coincides with the peak of the cosmic star formation history.
description: 15 pages, 14 figures, 3 tables, 3 appendices, accepted for publication in A&A
Supplementary material S2. Mountains of southernmost Norway: uplifted Miocene peneplains and re-exposed Mesozoic surfaces
Creators: name: Japsen, Peter
name: Green, Paul F.
name: Chalmers, James A.
name: Bonow, Johan M.
Publisher: name: Geological Society of London
Year: 2018
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: S2: Analytical details and thermal history reconstructions for all apatite fission-track analysis (AFTA) samples as well as analytical data for one vitrinite reflectance samples are available online, together with background information on the AFTA technique.
An alternative heavy Higgs mass limit
Creators: name: Castorina, P.
name: Consoli, M.
name: Zappalá, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: After commenting on the present value of the Higgs particle mass from radiative corrections, we explore the phenomenological implications of an alternative, non-perturbative renormalization of the scalar sector where the mass of the Higgs particle does not represent a measure of observable interactions at the Higgs mass scale. In this approach the Higgs particle could be very heavy, even heavier than 1 TeV, and remain nevertheless a relatively narrow resonance.
description: 17 pages. Version accepted for publication in Journal of Physics G
LE MAPPE CONCETTUALI COME STRATEGIA PER ORIENTARE LA LETTURA DEI DOCUMENTI IPERTESTUALI
Creators: name: DELMASTRO, ANNA LUCÍA
name: VARANESE, EMILIA
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: mappe concettuali; documenti ipertestuali; lettura

description: Il tentativo di ripercorrere con la lettura dell'ipertesto il tragitto della lettura tradizionale può sortire un esito infelice. L'ipertesto ha un'identità propria ancora non ben definita che rende più complessa l'attività di lettura e l'estrazione delle informazioni rilevanti per l'utente; i lettori di ipertesti trovano una diversità di percorsi possibili e una grandissima quantità di informazioni, da filtrare e organizzare per essere capite e utilizzate. Poiché priva di sequenzialità automatica, l'idea ipertestuale deve essere trasformata in una struttura con senso compiuto per l'utente. In questa ricerca si presenta l'uso delle mappe concettuali [nel corso dell'articolo MC] come 'grapho' che facilita la lettura ipertestuale. Si delinea l'utilizzo delle MC come strategia costruttivista per lo sviluppo della lettura, manifestandone vantaggi e svantaggi; si illustra altresì la sequenza operativa per la creazione di MC. Infine, si offrono suggerimenti per la valutazione sia delle MC che delle mappe mentali.
description: Studi di glottodidattica, V. 3, N. 1 (2009)
Taypsi: Static Enforcement of Privacy Policies for Policy-Agnostic Oblivious Computation
Creators: name: Ye, Qianchuan
name: Delaware, Benjamin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Programming Languages (cs.PL)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Secure multiparty computation (MPC) techniques enable multiple parties to compute joint functions over their private data without sharing that data with other parties, typically by employing powerful cryptographic protocols to protect individual's data. One challenge when writing such functions is that most MPC languages force users to intermix programmatic and privacy concerns in a single application, making it difficult to change or audit a program's underlying privacy policy. Prior policy-agnostic MPC languages relied on dynamic enforcement to decouple privacy requirements from program logic. Unfortunately, the resulting overhead makes it difficult to scale MPC applications that manipulate structured data. This work proposes to eliminate this overhead by instead transforming programs into semantically equivalent versions that statically enforce user-provided privacy policies. We have implemented this approach in a new MPC language, called Taypsi; our experimental evaluation demonstrates that the resulting system features considerable performance improvements on a variety of MPC applications involving structured data and complex privacy policies.
Lifted Inference beyond First-Order Logic
Creators: name: Malhotra, Sagar
name: Bizzaro, Davide
name: Serafini, Luciano
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Weighted First Order Model Counting (WFOMC) is fundamental to probabilistic inference in statistical relational learning models. As WFOMC is known to be intractable in general ($\#$P-complete), logical fragments that admit polynomial time WFOMC are of significant interest. Such fragments are called domain liftable. Recent works have shown that the two-variable fragment of first order logic extended with counting quantifiers ($\mathrm{C^2}$) is domain-liftable. However, many properties of real-world data, like acyclicity in citation networks and connectivity in social networks, cannot be modeled in $\mathrm{C^2}$, or first order logic in general. In this work, we expand the domain liftability of $\mathrm{C^2}$ with multiple such properties. We show that any $\mathrm{C^2}$ sentence remains domain liftable when one of its relations is restricted to represent a directed acyclic graph, a connected graph, a tree (resp. a directed tree) or a forest (resp. a directed forest). All our results rely on a novel and general methodology of "counting by splitting". Besides their application to probabilistic inference, our results provide a general framework for counting combinatorial structures. We expand a vast array of previous results in discrete mathematics literature on directed acyclic graphs, phylogenetic networks, etc.
description: Explanation for practical implementation of cardinality constraints added in Appendix .arXiv admin note: text overlap with arXiv:2302.09830
A flavoured dark sector
Creators: name: Renner, Sophie
name: Schwaller, Pedro
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We explore the phenomenology of a QCD-like dark sector which confines around the GeV scale. The dark sector inherits a flavour structure from a coupling between dark quarks and SM quarks via a heavy mediator, which leads to exciting new phenomena. While stable baryonic bound states are the dark matter candidates, the phenomenology is dominated by the lightest composite mesons, the dark pions, which can have decay lengths ranging from millimetres to hundreds of meters. For masses below 1.5 GeV, their exclusive decays to SM mesons are calculated for the first time by matching both dark and visible sectors to a chiral Lagrangian. Constraints from big bang nucleosynthesis, dark matter direct detection and flavour single out a small region of allowed parameter space for dark pion masses below 5 GeV. It is best probed by the fixed target experiments NA62 and SHiP, where dark pions can be produced copiously in rare decays like B to K piD. Heavier dark pions are best searched for at the LHC, where they decay after hadronisation to produce jets which emerge into SM states within the detector. Here the flavour structure ensures different flavours emerge on different length scales, leading to a striking new feature in the emerging jets signature.
description: 32 pages, 14 figures. v2: Amended references
Junction conditions in gravity theories with extra scalar degrees of freedom
Creators: name: Rosa, João Luís
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work we present a general method to obtain the junction conditions of modified theories of gravity whose action can be written in the form $f\left(X_1,...,X_n\right)$, where $X_1$ to $X_n$ are any combination of scalar dependencies, e.g. the Ricci scalar $R$, the trace of the stress-energy tensor $T$, the Gauss-Bonnet invariant $\mathcal G$, among others. We discriminate the junction conditions into three sub-groups: the immediate conditions, arising from the imposition of regularity of the relevant quantities in the distribution formalism; the differential conditions, arising from the differential terms in the field equations; and the coupling conditions, arising from the interaction between different scalars $X_i$. Writing the modified field equations in terms of a linear combination of the different contributions of the scalars $X_i$ allows one to analyze the direct and differential junction conditions independently for each of these scalars, whereas the coupling junction conditions can be analyzed separately afterwards. We show that the coupling junction conditions induced on a scalar $X_i$ due to a coupling with a scalar $X_j$ are of the same form as the differential junction conditions of the scalar $X_j$, but applied to the analogous quantity in the framework of the scalar $X_i$. We provide a complete analysis of three different types of spacetime matching, namely smooth matching, matching with a thin-shell, and matching with double gravitational layers, and we also describe under which conditions the full sets of junction conditions might be simplified. Our results are applicable to several well-known theories of gravity e.g. $f\left(R\right)$, $f\left(T\right)$, and $f\left(\mathcal G\right)$, and can be straightforwardly extrapolated to other theories with scalar dependencies and more complicated scenarios where several dependencies are present simultaneously.
description: 29 pages. V2: published version
INSEGNARE A TRADURRE: SPUNTI DALL'ESPERIENZA IN AMBITO LINGUISTICO E APPORTO DELLE NUOVE TECNOLOGIE. IL JOURNAL DI UN CASO.
Creators: name: DI MARTINO, EMILIA
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: tradurre; new technologies; journal

description: Questo contributo si propone di insegnare ad insegnare a tradurre operando delle riflessioni su un corso di traduzione offerto dall'Università Suor Orsola Benincasa di Napoli in modalità blended. Tali riflessioni ripercorrono la genesi del corso dal punto di vista dell'autrice, coinvolta attivamente quale creatrice e valutatrice di uno dei moduli da neofita entusiasta, in una sorta di journal che si offre come punto di partenza per l''apprendistato' di altri neofiti che potrebbero, attraverso l'osservazione, la sperimentazione e la successiva approssimazione delle tecniche proposte, costruirsi la loro expertise nella didattica della traduzione e nell'utilizzo delle nuove tecnologie in ambito (glotto)didattico in generale.
description: Studi di glottodidattica, V. 3, N. 1 (2009)
Quantum work statistics and resource theories: bridging the gap through Renyi divergences
Creators: name: Guarnieri, G.
name: Ng, N. H. Y.
name: Modi, K.
name: Eisert, J.
name: Paternostro, M.
name: Goold, J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The work performed on or extracted from a non-autonomous quantum system described by means of a two-point projective-measurement approach takes the form of a stochastic variable. We show that the cumulant generating function of work can be recast in the form of quantum Renyi divergences, and by exploiting convexity of this cumulant generating function, derive a single-parameter family of bounds for the first moment of work. Higher order moments of work can also be obtained from this result. In this way, we establish a link between quantum work statistics in stochastic approaches on the one hand and resource theories for quantum thermodynamics on the other hand, a theory in which Renyi divergences take a central role. To explore this connection further, we consider an extended framework involving a control switch and an auxiliary battery, which is instrumental to reconstruct the work statistics of the system. We compare and discuss our bounds on the work distribution to findings on deterministic work studied in resource theoretic settings.
description: 8 pages, minor changes, references added
PORTRAIT D'UN PENSEUR : MARIE PAPE-CARPANTIER (1815.1878)
Creators: name: KLEIN, BRUNO
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: pedagogia; Marie-Pape Carpentier

description: Il testo traccia il ritratto e il percorso di una figura importante, ma ancora poco nota, nella storia del pensiero pedagogico, Marie-Pape Carpentier, che permise la nascita della scuola materna in Francia. Carpentier dedicò la propria vita alla formulazione delle basi teoriche che sarebbero state a fondamento dell'educazione del bambino. Prima di diventare pedagoga fu insegnante formatrice nella prima "Ecole normale" per l'infanzia che contribuì a fondare a Parigi. Mettendo la sua penna al servizio della pedagogia, pubblicò numerosi manuali e divulgò le sue teorie in corsi e incontri Ma chi è un pedagogo? il testo cerca di dare indirettamente una risposta anche a questa domanda. Un pedagogo deve nello stesso tempo operare nella realtà per costruire su basi empiriche il suo pensiero e deve ugualmente tener conto del contesto socioculturale in cui si situano il suo operato e la sua riflessione.
description: Studi di glottodidattica, V. 3, N. 1 (2009)
Optical Radii of Galaxy Clusters
Creators: name: Girardi, M.
name: Biviano, A.
name: Giuricin, G.
name: Mardirossian, F.
name: Mezzetti, M.
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze the density profiles and virial radii for a sample of 90 nearby clusters, using galaxies with available redshifts and positions. Each cluster has at least 20 redshifts measured within an Abell radius, and all the results come from galaxy sets of at least 20 members. Most of the density profiles of our clusters are well fitted by hydrostatic-isothermal-like profiles. The slopes we find for many cluster density profiles are consistent with the hypothesis that the galaxies are in equilibrium with the binding cluster potential. The virial radii correlate with the core radii at a very high significance level. The observed relationship between the two size estimates is in agreement with the theoretical one computed by using the median values of the density profile parameters fitted on our clusters. After correcting for incompleteness in our cluster sample, we provide the universal distributions functions of core and virial radii (obtained within half an Abell radius).
description: 28 pages, LateX file, to appear in ApJ, preprint SISSA ref 77/94/A
title: ADCO, Boursier de Cîteaux : comptes (1489-1493) (11 H 1166), f. 00362
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: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Boursier de Cîteaux : comptes (1489-1493), Archives départementales de la Côte-d'Or, (11 H 1166). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Boursier de Cîteaux : comptes (1489-1493), Archives départementales de la Côte-d'Or, (11 H 1166), f. 00362, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Phenomenology of Colored Radiative Neutrino Mass Model and Its Implications on the Cosmic-ray Observations
Creators: name: Ding, Ran
name: Han, Zhi-Long
name: Huang, Li
name: Liao, Yi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend the colored Zee-Babu model with a gauged $U(1)_{B-L}$ symmetry and a scalar singlet dark matter (DM) candidate $S$. The spontaneous breaking of $U(1)_{B-L}$ leaves a residual $Z_2$ symmetry that stabilizes the DM and generates tiny neutrino mass at the two-loop level with the color seesaw mechanism. After investigating dark matter and flavor phenomenology of this model systematically, we further focus on its imprint on two of cosmic-ray anomalies: the Fermi-LAT gamma-ray excess at the Galactic Center (GCE) and the PeV ultra-high energy (UHE) neutrino events at the IceCube. We found that the Fermi-LAT GCE spectrum can be well fitted by DM annihilation into a pair of on-shell singlet Higgs mediators while being compatible with the constraints from relic density, direct detections as well as dwarf spheroidal galaxies in the Milky Way. Although the UHE neutrino events at the IceCube could be accounted for by resonance production of a TeV-scale leptoquark, the relevant Yukawa couplings have been severely limited by current low energy flavor experiments. We then derive the IceCube limits on the Yukawa couplings by employing its latest 6-year data.
description: 33 pages, 5 tables, 12 figures; v3: title slightly changed and very minor revision in the text
Marginal Extended Perturbations in Two Dimensions and Gap-Exponent Relations
Creators: name: Turban, L.
name: Berche, B.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The most general form of a marginal extended perturbation in a two-dimensional system is deduced from scaling considerations. It includes as particular cases extended perturbations decaying either from a surface, a line or a point for which exact results have been previously obtained. The first-order corrections to the local exponents, which are functions of the amplitude of the defect, are deduced from a perturbation expansion of the two-point correlation functions. Assuming covariance under conformal transformation, the perturbed system is mapped onto a cylinder. Working in the Hamiltonian limit, the first-order corrections to the lowest gaps are calculated for the Ising model. The results confirm the validity of the gap-exponent relations for the perturbed system.
description: 11 pages, Plain TeX, epsf
Hierarchical Matrix Factorization for Interpretable Collaborative Filtering
Creators: name: Sugahara, Kai
name: Okamoto, Kazushi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Matrix factorization (MF) is a simple collaborative filtering technique that achieves superior recommendation accuracy by decomposing the user-item interaction matrix into user and item latent matrices. Because the model typically learns each interaction independently, it may overlook the underlying shared dependencies between users and items, resulting in less stable and interpretable recommendations. Based on these insights, we propose "Hierarchical Matrix Factorization" (HMF), which incorporates clustering concepts to capture the hierarchy, where leaf nodes and other nodes correspond to users/items and clusters, respectively. Central to our approach, called hierarchical embeddings, is the additional decomposition of the latent matrices (embeddings) into probabilistic connection matrices, which link the hierarchy, and a root cluster latent matrix. The embeddings are differentiable, allowing simultaneous learning of interactions and clustering using a single gradient descent method. Furthermore, the obtained cluster-specific interactions naturally summarize user-item interactions and provide interpretability. Experimental results on ratings and ranking predictions show that HMF outperforms existing MF methods, in particular achieving a 1.37 point improvement in RMSE for sparse interactions. Additionally, it was confirmed that the clustering integration of HMF has the potential for faster learning convergence and mitigation of overfitting compared to MF, and also provides interpretability through a cluster-centered case study.
PRISM: Mitigating EHR Data Sparsity via Learning from Missing Feature Calibrated Prototype Patient Representations
Creators: name: Zhu, Yinghao
name: Wang, Zixiang
name: He, Long
name: Xie, Shiyun
name: Zheng, Xiaochen
name: Ma, Liantao
name: Pan, Chengwei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Electronic Health Records (EHRs) contain a wealth of patient data; however, the sparsity of EHRs data often presents significant challenges for predictive modeling. Conventional imputation methods inadequately distinguish between real and imputed data, leading to potential inaccuracies of patient representations. To address these issues, we introduce PRISM, a framework that indirectly imputes data by leveraging prototype representations of similar patients, thus ensuring compact representations that preserve patient information. PRISM also includes a feature confidence learner module, which evaluates the reliability of each feature considering missing statuses. Additionally, PRISM introduces a new patient similarity metric that accounts for feature confidence, avoiding over-reliance on imprecise imputed values. Our extensive experiments on the MIMIC-III, MIMIC-IV, PhysioNet Challenge 2012, eICU datasets demonstrate PRISM's superior performance in predicting in-hospital mortality and 30-day readmission tasks, showcasing its effectiveness in handling EHR data sparsity. For the sake of reproducibility and further research, we have publicly released the code at https://github.com/yhzhu99/PRISM.
description: CIKM 2024 Full Research Paper
Circuit realisation of a two-orbital non-Hermitian tight-binding chain
Creators: name: Halder, Dipendu
name: Thomale, Ronny
name: Basu, Saurabh
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine a non-Hermitian (NH) tight-binding system comprising of two orbitals per unit cell and their electrical circuit analogues. We distinguish the PT-symmetric and non-PT symmetric cases characterised by non-reciprocal nearest neighbour couplings and onsite gain/loss terms, respectively. The localisation of the edge modes or the emergence of the topological properties are determined via the maximum inverse participation ratio, which has distinct dependencies on the parameters that define the Hamiltonian. None of the above scenarios exhibits the non-Hermitian skin effect. We investigate the boundary modes corresponding to the topological phases in a suitably designed electrical circuit by analyzing the two-port impedance and retrieve the admittance band structure of the circuit via imposing periodic boundary conditions. The obtained results are benchmarked against the Hermitian version of the two-orbital model to compare and discriminate against those obtained for the NH variants.
description: Published in Physical Review B; 10 pages, 7 figures
Reinforcement Learning of Artificial Microswimmers
Creators: name: Muiños-Landin, Santiago
name: Ghazi-Zahedi, Keyan
name: Cichos, Frank
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The behavior of living systems is based on the experience they gained through their interactions with the environment [1]. This experience is stored in the complex biochemical networks of cells and organisms to provide a relationship between a sensed situation and what to do in this situation [2-4]. An implementation of such processes in artificial systems has been achieved through different machine learning algorithms [5, 6]. However, for microscopic systems such as artificial microswimmers which mimic propulsion as one of the basic functionalities of living systems [7, 8] such adaptive behavior and learning processes have not been implemented so far. Here we introduce machine learning algorithms to the motion of artificial microswimmers with a hybrid approach. We employ self-thermophoretic artificial microswimmers in a real world environment [9, 10] which are controlled by a real-time microscopy system to introduce reinforcement learning [11-13]. We demonstrate the solution of a standard problem of reinforcement learning - the navigation in a grid world. Due to the size of the microswimmer, noise introduced by Brownian motion if found to contribute considerably to both the learning process and the actions within a learned behavior. We extend the learning process to multiple swimmers and sharing of information. Our work represents a first step towards the integration of learning strategies into microsystems and provides a platform for the study of the emergence of adaptive and collective behavior.
An Orbifold Compactification with Three Families from Twisted Sectors
Creators: name: Kim, Hang Bae
name: Kim, Jihn E.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We obtain a three generational $SU(3)_c\times SU(3)_w \times U(1)^4\times [SO(12)\times U(1)^2]^\prime$ model from an orbifold construction with the requirement that three generations arise from twisted sectors. There exist supersymmetric vacua realizing the standard model. In one example the anomalous $U(1)$ breaks the gauge symmetry down to $SU(3)_c\times SU(2)_w\times U(1)_Y\times SO(12)^\prime$.
description: 11pages, phyzzx.tex, SNUTP 92-88
Implicit Copulas from Bayesian Regularized Regression Smoothers
Creators: name: Klein, Nadja
name: Smith, Michael Stanley
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We show how to extract the implicit copula of a response vector from a Bayesian regularized regression smoother with Gaussian disturbances. The copula can be used to compare smoothers that employ different shrinkage priors and function bases. We illustrate with three popular choices of shrinkage priors --- a pairwise prior, the horseshoe prior and a g prior augmented with a point mass as employed for Bayesian variable selection --- and both univariate and multivariate function bases. The implicit copulas are high-dimensional, have flexible dependence structures that are far from that of a Gaussian copula, and are unavailable in closed form. However, we show how they can be evaluated by first constructing a Gaussian copula conditional on the regularization parameters, and then integrating over these. Combined with non-parametric margins the regularized smoothers can be used to model the distribution of non-Gaussian univariate responses conditional on the covariates. Efficient Markov chain Monte Carlo schemes for evaluating the copula are given for this case. Using both simulated and real data, we show how such copula smoothing models can improve the quality of resulting function estimates and predictive distributions.
Effects of salinity on flows of dense colloidal suspensions
Creators: name: Lagoin, Marc
name: Fulcrand, Rémy
name: Piednoir, Agnès
name: Bérut, Antoine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We experimentally study the effects of salt concentration on the flowing dynamics of dense suspensions of micrometer-sized silica particles in microfluidic drums. In pure water, the particles are fully sedimented under their own weight, but do not touch each others due to their negative surface charges, which results in a "frictionless" dense colloidal suspension. When the pile is inclined above a critical angle $θ_c \sim 5°$ a fast avalanche occurs, similar to what is expected for classical athermal granular media. When inclined below this angle, the pile slowly creeps until it reaches flatness. Adding ions in solution screens the repulsive forces between particles, and the flowing properties of the suspension are modified. We observe significant changes in the fast avalanche regime: a time delay appears before the onset of the avalanche and increases with the salt concentration, the whole dynamics becomes slower, and the critical angle $θ_c$ increases from $\sim 5°$ to $\sim 20°$. In contrast, the slow creep regime does not seem to be heavily modified. These behaviors can be explained by considering an increase in both the initial packing fraction of the suspension $Φ_0$, and the effective friction between the particles $μ_p$. These observations are confirmed by confocal microscopy measurements to estimate the initial packing fraction of the suspensions, and AFM measurements to quantify the particles surface roughness and the repulsion forces, as a function of the ionic strength of the suspensions.
description: 10 pages, 7 figures
Top-philic dark matter within and beyond the WIMP paradigm
Creators: name: Garny, Mathias
name: Heisig, Jan
name: Hufnagel, Marco
name: Lülf, Benedikt
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a comprehensive analysis of top-philic Majorana dark matter that interacts via a colored t-channel mediator. Despite the simplicity of the model -- introducing three parameters only -- it provides an extremely rich phenomenology allowing us to accommodate the relic density for a large range of coupling strengths spanning over six orders of magnitude. This model features all `exceptional' mechanisms for dark matter freeze-out, including the recently discovered conversion-driven freeze-out mode, with interesting signatures of long-lived colored particles at colliders. We constrain the cosmologically allowed parameter space with current experimental limits from direct, indirect and collider searches, with special emphasis on light dark matter below the top mass. In particular, we explore the interplay between limits from Xenon1T, Fermi-LAT and AMS-02 as well as limits from stop, monojet and Higgs invisible decay searches at the LHC. We find that several blind spots for light dark matter evade current constraints. The region in parameter space where the relic density is set by the mechanism of conversion-driven freeze-out can be conclusively tested by R-hadron searches at the LHC with 300\,fb$^{-1}$.
description: 14 pages + references, 9 figures
The Gross-Pitaevskii equation: Bäcklund transformations and admitted solutions
Creators: name: Carillo, Sandra
name: Zullo, Federico
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Bäcklund transformations are applied to study the Gross-Pitaevskii equation. Supported by previous results, a class of Bäcklund transformations admitted by this equation are constructed. Schwartzian derivative as well as its invariance properties turn out to represent a key tool in the present investigation. Examples and explicit solutions of the Gross-Pitaevskii equation are obtained.
description: arXiv admin note: text overlap with arXiv:1711.04304 Authors' Answer: this article represents a further development of the previous one; thus, some crucial results are repeated for the reader convenience
Complete characterization of weak, ultrashort near-UV pulses by spectral interferometry
Creators: name: Kacprowicz, Marcin
name: Wasilewski, Wojciech
name: Banaszek, Konrad
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a method for a complete characterization of a femtosecond ultraviolet pulse when a fundamental near-infrared beam is also available. Our approach relies on generation of second harmonic from the pre-characterized fundamental, which serves as a reference against which an unknown pulse is measured using spectral interference (SI). The characterization apparatus is a modified second harmonic frequency resolved optical gating setup which additionally allows for taking SI spectrum. The presented method is linear in the unknown field, simple and sensitive. We checked its accuracy using test pulses generated in a thick nonlinear crystal, demonstrating the ability to measure the phase in a broad spectral range, down to 0.1% peak spectral intensity as well as retrieving pi leaps in the spectral phase.
COMUNICAZIONE MEDIATA DAL COMPUTER E APPRENDIMENTO LINGUISTICO: GLI INCONTRI TELETANDEM
Creators: name: LEONE, PAOLA
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: progetto teletandem; new technologies; apprendimento linguistico

description: Il contributo esamina alcune funzioni della scrittura digitale durante scambi interattivi bimodali tramite chat e videochiamata. Il contesto comunicativo in analisi è costituito da alcune sessioni Teletandem finalizzate a promuovere l'apprendimento di una L2 tramite l'interazione. Si analizzano alcuni estratti di dialogo tra una parlante anglofona ed una italofona per individuare gli scambi che hanno una funzione comunicativa, didattica e didattico-comunicativa. L'analisi dell'alternanza nell'impiego della chat e della videochiamata, conferma la natura "ibrida" del tandem, già evidenziata in altri studi sulla commutazione di codice negli incontri di tandem in presenza. L'avvicendamento nell'impiego della scrittura e dell'oralità contribuisce, tra l'altro, a definire lo status sociolinguistico di quest'evento virtuale, in cui ogni singolo partecipante conosce le regole del proprio ruolo di apprendente o di locutore competente. L'indagine compiuta ci porta a considerare valido un approccio integrato di studio in cui le qualità didattiche dell'agire e del comunicare al computer vengono indagate tenendo conto, da un lato delle caratteristiche delle forme note di dialogo, come lo scambio naturale, dall'altro delle particolarità che emergono nei diversi formati di comunicazione messi in atto grazie alla tecnologia digitale.
description: Studi di glottodidattica, V. 3, N. 1 (2009)
The Long Period AM Her-like Cataclysmic Variable RXJ051541+0104.6
Creators: name: Walter, F. M.
name: Wolk, S. J.
name: Adams, N. R.
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of a new catacysmic variable system, RXJ051541+0104.6. The optical spectrum has a blue continuum with superposed H~I and He~I and II emission lines. The soft X-ray spectrum is well fit with a 50~eV black body. The X-ray and optical data are suggestive of an AM~Herculis system. The X-ray light curve shows extreme variability on timescales of seconds, and suggests an orbital period of order 8~hours, nearly twice that of the longest catalogued AM~Her period. When bright, the X-ray light curve breaks up into a series of discrete bursts, which may be due to accretion of dense blobs of material of about 10$^{17}$~gm mass.
description: Accepted by ApJ. 23 pages. AAS/WGAS LaTeX. 9 figures available via anonymous FTP from sbast3.ess.sunysb.edu in /pub/fred/fig_*.ps
Analytical details. Mountains of southernmost Norway: uplifted Miocene peneplains and re-exposed Mesozoic surfaces
Creators: name: Japsen, Peter
name: Green, Paul F.
name: Chalmers, James A.
name: Bonow, Johan M.
Publisher: name: Geological Society of London
Year: 2018
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Analytical details and thermal history reconstructions for all apatite fission-track analysis (AFTA) samples as well as analytical data for one vitrinite reflectance samples are available online, together with background information on the AFTA technique.
Conjugacy Class Growth in Virtually Abelian Groups
Creators: name: Dermenjian, Aram
name: Evetts, Alex
Publisher: name: arXiv
Year: 2023
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E16, 20E45, 20F55, 20F69

description: We study the conjugacy class growth function in finitely generated virtually abelian groups. That is, the number of elements in the ball of radius $n$ in the Cayley graph which intersect a fixed conjugacy class. In the class of virtually abelian groups, we prove that this function is always asymptotically equivalent to a polynomial. Furthermore, we show that in any affine Coxeter group, the degree of polynomial growth of a conjugacy class is equivalent to the reflection length of any element of that class.
description: 14 pages, 2 figures. Published in the journal of Groups, Complexity, Cryptology
IL TESTO LETTERARIO E L'INSEGNAMENTO DELLE LINGUE STRANIERE
Creators: name: MAGNANI, MIRCO
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: testo letterario; insegnamento lingue straniere; tipologie testuali

description: È risaputo che, all'interno dell'insegnamento delle lingue straniere, più che la quantità è la qualità a determinare l'efficacia dell'intervento didattico. Di conseguenza, la scelta della tipologie testuali da fornire ai discenti costituisce una componente fondamentale per il successo dell'insegnamento linguistico. Il testo letterario, sebbene spesso trascurato a vantaggio di altri tipi di testo, rappresenta una tipologia testuale contraddistinta dall'alta qualità dell'input sia linguistico che culturale. È intenzione del presente contributo rivalutare l'impiego del testo letterario nell'insegnamento delle lingue straniere ed evidenziarne le caratteristiche al fine di: a) comprovarne la bontà, nonché la modernità; b) collocarlo non ai margini, bensì al centro del processo di insegnamento/apprendimento. A questo scopo si prendono in considerazione sia alcune recenti sperimentazioni, sia alcune teorizzazioni, le quali pongono le basi per superare l'ormai obsoleto approccio comunicativo ed iniziare ad addentrarsi in quello post-comunicativo, ovvero in esperienze più vicine alle nuove esigenze glottodidattiche.
description: Studi di glottodidattica, V. 3, N. 1 (2009)
Measuring the Beam Polarizations and the Luminosity at Photon-Photon Colliders
Creators: name: Yasui, Y.
name: Watanabe, I.
name: Kodaira, J.
name: Endo, I.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present methods to measure the beam polarizations and the luminosity of $γγ$ colliders at TeV energy scale. The beam polarizations of a $γγ$ collider can easily be monitored by comparing the numbers of events of the processes $γγ$ $\rightarrow$ $\ell^+ \ell^-$ and $γγ$ $\rightarrow$ $W^+ W^-$, where $\ell$ means $e$ or $μ$. The luminosity of a $γγ$ collider is also measurable by the event rate of $W$ boson pair productions and the light lepton pair productions.
description: 16 pages and 7 figures attached as PostScript files, LaTeX, HUPD-9217 (Revised for 4 points: 2 are important, see the top of the file for details.)
$SU(1,1|N)$ superconformal mechanics with fermionic gauge symmetry
Creators: name: Chernyavsky, Dmitry
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study superpaticle models with fermionic gauge symmetry on the coset spaces of the $SU(1,1|N)$ supergroup. We first construct $SU(1,1|N)$ supersymmetric extension of a particle on $AdS_2$ possessing the $κ$-symmetry. Including angular degrees of freedom and extending this model to a superparticle on the $AdS_2\times \mathbb{CP}^{N-1}$ background with two-form flux, one breaks the $κ$-symmetry down to a fermionic gauge symmetry with one parameter. A link of the background field configuration to the near horizon black hole geometries is discussed.
description: V2: 17 pages, presentation improved, the version to appear in JHEP
Growth index and statefinder diagnostic of Oscillating Dark Energy
Creators: name: Panotopoulos, Grigoris
name: Rincón, Ángel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study is some detail the Cosmology of Oscillating Dark Energy described by concrete equations-of-state investigated recently in the literature. In particular, at the background level we compute the statefinder parameters, while at the level of linear cosmological perturbations we compute the growth index $γ$ as well as the combination parameter $A=f σ_8$. The comparison with $Λ$CDM is made as well.
description: Minor corrections, reference added. arXiv admin note: text overlap with arXiv:1706.10211
LE FOTO PARLANTI
Creators: name: MUGNANI, CATIA
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: comic life; apprendimento delle lingue

description: Per esperienza diretta, l'utilizzo in classe di foto scattate dagli studenti suscita sempre entusiasmo e interesse. Dopo aver sperimentato questa pratica, ho cominciato però a provare il desiderio di "far parlare" le fotografie e mi sono messa alla ricerca di un programma in grado di permettere questa operazione ed è così che sono entrata in contatto con il sistema autore Comic Life e ho cominciato ad utilizzarlo, arrivando a trasformare la classe in uno studio fotografico con tanto di registi, attori e scenografi.
description: Studi di glottodidattica, V. 3, N. 1 (2009)