cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Pushing Out the Classroom Walls: A Scalability Benchmark for a Virtual Audience Behaviour Model in Virtual Reality
Creators: name: Glémarec, Yann
name: Lugrin, Jean-Luc
name: Bosser, Anne-Gwenn
name: Cagniat, Paul
name: Buche, Cédric
name: Latoschik, Marc Erich
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Virtual Reality
subject: Behaviour Model
subject: Education
subject: Virtual Agent

description: In this paper, we describe the implementation and performance of a Virtual Audience behaviour model for Virtual Reality (VR). The model is a VR adaptation of an existing desktop model based on crowd-sourced data. The system allows a user in VR to easily build and experience a wide variety of atmospheres with small or large groups of virtual agents. The paper describes the model’s implementation and possible benefits for different applications, e.g. training, therapeutic or culture. Our first scalability benchmark results demonstrated the ability to simultaneously handle one hundred virtual agents without significantly affecting the recommended frame rate for VR applications. Lastly, we propose a set of improvements our training system can benefit from. This research is conducted in the context of a classroom simulation software for teachers’ training.
title: Eine Kategorisierung von Gestaltungsempfehlungen zur Visualisierung von Unsicherheit
Creators: name: Bischof, Christina
name: Mentler, Tilo
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Unsicherheit
subject: Visualisierung
subject: Gestaltungsempfehlungen
subject: Card Sorting

description: Unsicherheit beeinflusst, wie Daten von Nutzenden interpretiert werden, sie beeinflusst ihre Handlungsauswahl und die Bestimmtheit, mit der Entscheidungen getroffen werden. Für den Umgang mit und insbesondere die Visualisierung von Unsicherheiten durch Messungenauigkeiten, Übertragungsfehler, Mehrdeutigkeiten und andere Problemstellungen wurden bereits zahlreiche Gestaltungsrichtlinien veröffentlicht. Ihre Vielfalt erschwert jedoch die Auswahl und Anwendung für eine spezifische Gestaltungsaufgabe. 89 dieser Empfehlungen wurden im Rahmen einer Card-Sorting-Studie, deren Durchführung und Ergebnisse in diesem Beitrag beschrieben werden, durch 16 Personen kategorisiert. Durch Berechnung einer Ähnlichkeitsmatrix konnten die Kategorien „Unsicherheit zeigen, um Unsicherheit zu reduzieren“, „Expoloration von Unsicherheit ermöglichen“ und „Transparenz“ mit insgesamt 20 Empfehlungen zur Visualisierung von Unsicherheit als übergeordnete Konzepte identifiziert werden. Sie werden in diesem Beitrag vorgestellt und diskutiert.
title: UCAI 2020: Workshop on User-Centered Artificial Intelligence
Creators: name: Augstein, Mirjam
name: Buschek, Daniel
name: Herder, Eelco
name: Loepp, Benedikt
name: Yigitbas, Enes
name: Ziegler, Jürgen
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Human computer interaction (HCI)
subject: Artificial intelligence

description: The proliferation of AI-based techniques poses a range of new challenges for the design and engineering of interactive and adaptive systems since they tend to act as black boxes and do not offer the user sufficient transparency, control, and interaction opportunities, which are considered major goals of user-centered design in the HCI field. This workshop aims at sharing and discussing recent developments at the intersection of HCI and AI, and at exploring novel methodological, technical, and interaction approaches. Researchers with diverse disciplinary backgrounds will contribute to advancing the research agenda in this emerging field of research.
title: Alexa, tell me more – about new best friends, the advantage of hands-free operation and life-long learning
Creators: name: Scherr, Simon André
name: Meier, Annika
name: Cihan, Selma
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Digital inclusion
subject: digital assistants
subject: elderly people
subject: digital transformation
subject: smart home

description: The demographic change and the digital transformation are two phenomena that change our society. In the future, the demographic change will lead to an increasing proportion of older people. Elderly people often feel lonely and cannot fully take part in social life. Our research explores how to increase the participation of elderly people in social activities and how to reduce loneliness with the help of digital solutions. For this purpose, we equipped a group of elderly people living in the same neighborhood with Amazon Echo Show devices. This experience report presents our evaluation strategy and results. We present the expectations of the participants, how they used the device, and the results regarding user acceptance. It turned out that the device is easy to use and became a beloved member of the household, and that the participants felt less lonely and more socially interconnected.
title: Workshop on Virtual and Augmented Reality in Everyday Context (VARECo)
Creators: name: Weyers, Benjamin
name: Zielasko, Daniel
name: Heinrich, Florian
name: Kulik, Alexander
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: virtual reality
subject: augmented reality
subject: everyday context
subject: 3D interaction

description: The workshop is planned to provide a forum for researchers and practitioners interested in the investigation of open questions in the use of VR and AR technology in everyday context. The workshop aims at the presentation, discussion, and identification of current results and research questions in this context. The workshop is comprised of a paper session for the presentation of current and ongoing work as well as an interactive session, in which open research questions in the addressed context will be identified and discussed.
Political obligation : the good man and his duty to obey the law
Creators: name: Hogg, Frances Howard
Publisher: name: University of British Columbia
Year: 2011

description: The 'problem of political obligation' is understood, here, to be one of trying to reconcile obedience to government and law with the essential precondition of responsible moral conduct - that is, with the freedom of the individual to act according to the dictates of his own conscience. Primarily, we are concerned with that theory of political obligation wherein the duty of obedience (and the corresponding right of government to punish the disobedient) are derived from the 'consent' of the individual. By representing the duty of obedience thusly, as one which is freely and wilfully undertaken by the individual upon whom it falls, we would seem to be satisfying the requirements of the ethical individual. We argue, however, that there are problems with 'consent theory' - problems which differ, in themselves, depending on how one understands the act of consent. For example, where consent is taken to imply an 'inviolable' act of submission to government and law, then each and every law becomes obligatory. The subsequent use of 'validity’ as the indicator of a law's authority, and the irrelevancy of the content of a law (moral or immoral) to one's obligation to obey it are of particular importance to us here. For they imply, ultimately, the irrelevancy of individual moral judgement where a law applies. (One is no longer free to act on that judgement.) Far from accommodating the 'good man', this use of consent appears to involve, we argue, an abdication of one's freedom to be good. Alternatively, consent may be interpreted as a 'conditional' act whereby the individual re-affirms his right to resist government where it goes beyond certain 'limits' set upon its nature and purpose. Here, it is the reasons for which one might consent (rather than the act of consent itself) which give rise to the duty of obedience. The values one expects to realize through law - order, freedom, justice, the common good, etc. - these, rather than simple 'validity’, become the final indicators of legitimate authority. But what if a law frustrates the achievement of these end? Does a duty to obey then exist? Whose judgement is to count in such an instance? These questions arise here precisely because one does not necessarily incur, with this use of consent, a duty to obey all valid law. For the same reason, we argue, this approach fails to explain the right of punishment that governments may still exercise over over any or all resistors. Out of this discussion of the 'ends of government' one final question arises concerning the very assumption of compatibility between public and private 'goods'; or between public principles of morality and the ones we use in our private lives. We conclude, in other words, by raising doubts about the feasibility of ever striking a 'final' accord between the good citizen and the good man.
Nonequilibrium transport through a singlet-triplet Anderson impurity
Creators: name: Bas, P. Roura
name: Aligia, A. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the Anderson model in which a configuration with a doublet is hybridized with another with a singlet and a triplet. We calculate the conductance through the system as a function of temperature and bias voltage, near the quantum critical line for which the system is exactly solvable. The results explain recent transport measurements in a single-molecule quantum dot.
description: 5 pages, 4 figures, some clarifications and references added. Accepted for publication in Phys. Rev. B
Deep Measurement Updates for Bayes Filters
Creators: name: Pankert, Johannes
name: Minniti, Maria Vittoria
name: Wellhausen, Lorenz
name: Hutter, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Measurement update rules for Bayes filters often contain hand-crafted heuristics to compute observation probabilities for high-dimensional sensor data, like images. In this work, we propose the novel approach Deep Measurement Update (DMU) as a general update rule for a wide range of systems. DMU has a conditional encoder-decoder neural network structure to process depth images as raw inputs. Even though the network is trained only on synthetic data, the model shows good performance at evaluation time on real-world data. With our proposed training scheme primed data training , we demonstrate how the DMU models can be trained efficiently to be sensitive to condition variables without having to rely on a stochastic information bottleneck. We validate the proposed methods in multiple scenarios of increasing complexity, beginning with the pose estimation of a single object to the joint estimation of the pose and the internal state of an articulated system. Moreover, we provide a benchmark against Articulated Signed Distance Functions(A-SDF) on the RBO dataset as a baseline comparison for articulation state estimation.
Tensor ghosts in the inflationary cosmology
Creators: name: Clunan, Tim
name: Sasaki, Misao
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Theories with curvature squared terms in the action are known to contain ghost modes in general. However, if we regard curvature squared terms as quantum corrections to the original theory, the emergence of ghosts may be simply due to the perturbative truncation of a full non-perturbative theory. If this is the case, there should be a way to live with ghosts. In this paper, we take the Euclidean path integral approach, in which ghost degrees of freedom can be, and are integrated out in the Euclideanized spacetime. We apply this procedure to Einstein gravity with a Weyl curvature squared correction in the inflationary background. We find that the amplitude of tensor perturbations is modified by a term of O(alpha^2 H^2) where alpha^2 is a coupling constant in front of the Weyl squared term and H is the Hubble parameter during inflation.
description: 16 pages, no figures
A decoupling property of some Poisson structures on ${\rm Mat}_{n\times d}(\mathbb{C}) \times {\rm Mat}_{d\times n}(\mathbb{C})$ supporting ${\rm GL}(n,\mathbb{C}) \times {\rm GL}(d,\mathbb{C})$ Poisson-Lie symmetry
Creators: name: Fairon, M.
name: Feher, L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study a holomorphic Poisson structure defined on the linear space $S(n,d):= {\rm Mat}_{n\times d}(\mathbb{C}) \times {\rm Mat}_{d\times n}(\mathbb{C})$ that is covariant under the natural left actions of the standard ${\rm GL}(n,\mathbb{C})$ and ${\rm GL}(d,\mathbb{C})$ Poisson-Lie groups. The Poisson brackets of the matrix elements contain quadratic and constant terms, and the Poisson tensor is non-degenerate on a dense subset. Taking the $d=1$ special case gives a Poisson structure on $S(n,1)$, and we construct a local Poisson map from the Cartesian product of $d$ independent copies of $S(n,1)$ into $S(n,d)$, which is a holomorphic diffeomorphism in a neighborhood of zero. The Poisson structure on $S(n,d)$ is the complexification of a real Poisson structure on ${\rm Mat}_{n\times d}(\mathbb{C})$ constructed by the authors and Marshall, where a similar decoupling into $d$ independent copies was observed. We also relate our construction to a Poisson structure on $S(n,d)$ defined by Arutyunov and Olivucci in the treatment of the complex trigonometric spin Ruijsenaars-Schneider system by Hamiltonian reduction.
description: Accepted version
Non-standard loop quantum cosmology
Creators: name: Piechocki, Wlodzimierz
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present results concerning the nature of the cosmological big bounce(BB) transition within the loop geometry underlying loop quantum cosmology (LQC). Our canonical quantization method is an alternative to the standard LQC. An evolution parameter we use has clear interpretation both at classical and quantum levels. The physical volume operator has discrete spectrum which is bounded from below. The minimum gap in the spectrum defines a quantum of the volume. The spectra of operators are parametrized by a free parameter to be determined.
description: 4 pages, prepared for the proceedings of the Grassmannian Conference in Fundamental Cosmology (Grasscosmofun'09), 14-19 September 2009, Szczecin, Poland
Impacto: CSIC – Instituto de Física Fundamental (IFF). Artículos
Creators: name: Oficina Técnica De DIGITAL.CSIC
name: Bernal, Isabel
name: Román-Molina, Juan
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2017
Subjects: DIGITAL.CSIC
Colecciones
Acceso abierto
Infografías
Repositorios institucionales
Impacto
Reutilización

description: Fecha de los datos: octubre de 2017.
description: Esta infografía recoge el impacto que ha tenido un trabajo de la colección "CSIC – Instituto de Física Fundamental (IFF). Artículos" de Digital.CSIC.
description: ¿Por qué importa el acceso abierto? Con el portal “Comparte tu historia de Acceso Abierto” DIGITAL.CSIC se une al resto de iniciativas que en todo el mundo demuestran que mayor acceso gratuito a los resultados de la actividad académica y generosas licencias de uso benefician a todos. A través de casos concretos y testimonios personales damos a conocer distintos tipos de usos que recibe la ciencia CSIC en acceso abierto en el repositorio institucional. El portal contiene 35 historias que reflejan cómo la ciencia CSIC es consultada por la comunidad internacional de investigadores, profesores y estudiantes, instituciones culturales y universidades, medios de información, profesionales de la Salud y pacientes, divulgadores del patrimonio científico y cultural, sector de la innovación y el desarrollo, la sociedad civil y apasionados por la ciencia y la cultural en general.
title: User-Embodied Interaction in Virtual Reality (UIVR)
Creators: name: Roth, Daniel
name: Podkosova, Iana
name: Nilsson, Niels Christian
name: Kulik, Alexander
name: Bruder, Gerd
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: User embodiment
subject: body ownership
subject: avatars
subject: embodied interaction
subject: social interaction

description: The representation of users is specifically important for Virtual/Mixed/Augmented Reality (VR/MR/AR) applications. The development of technological solutions and the understanding of underlying cognitive effects challenges humancomputer interaction (HCI) and related disciplines. A number of interesting research questions, such as realism of appearance and behavior as well as their effects on perception and user behavior arise, that are yet to be explored. To support a discussion and the generation of a common agenda, we will organize a half-day workshop on User-Embodied Interaction in VR (UIVR) gathering researchers and practitioners emphasizing the discussion of different positions on applications and findings to collect guidelines for future developments.
Impacto: CSIC - Estación Biológica de Doñana (EBD). Artículos
Creators: name: Oficina Técnica De DIGITAL.CSIC
name: Román-Molina, Juan
name: Bernal, Isabel
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2017
Subjects: DIGITAL.CSIC
Colecciones
Acceso abierto
Infografías
Repositorios institucionales
Impacto
Reutilización

description: Fecha de los datos: octubre de 2017.
description: Esta infografía recoge el impacto que ha tenido un trabajo de la colección "CSIC - Estación Biológica de Doñana (EBD). Artículos" de Digital.CSIC.
description: ¿Por qué importa el acceso abierto? Con el portal “Comparte tu historia de Acceso Abierto” DIGITAL.CSIC se une al resto de iniciativas que en todo el mundo demuestran que mayor acceso gratuito a los resultados de la actividad académica y generosas licencias de uso benefician a todos. A través de casos concretos y testimonios personales damos a conocer distintos tipos de usos que recibe la ciencia CSIC en acceso abierto en el repositorio institucional. El portal contiene 35 historias que reflejan cómo la ciencia CSIC es consultada por la comunidad internacional de investigadores, profesores y estudiantes, instituciones culturales y universidades, medios de información, profesionales de la Salud y pacientes, divulgadores del patrimonio científico y cultural, sector de la innovación y el desarrollo, la sociedad civil y apasionados por la ciencia y la cultural en general.
Empirical Models of Pressure and Density in Saturn's Interior: Implications for the Helium Concentration, its Depth Dependence, and Saturn's Precession Rate
Creators: name: Helled, Ravit
name: Schubert, Gerald
name: Anderson, John D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 'empirical' models (pressure vs. density) of Saturn's interior constrained by the gravitational coefficients J_2, J_4, and J_6 for different assumed rotation rates of the planet. The empirical pressure-density profile is interpreted in terms of a hydrogen and helium physical equation of state to deduce the hydrogen to helium ratio in Saturn and to constrain the depth dependence of helium and heavy element abundances. The planet's internal structure (pressure vs. density) and composition are found to be insensitive to the assumed rotation rate for periods between 10h:32m:35s and 10h:41m:35s. We find that helium is depleted in the upper envelope, while in the high pressure region (P >~ 1 Mbar) either the helium abundance or the concentration of heavier elements is significantly enhanced. Taking the ratio of hydrogen to helium in Saturn to be solar, we find that the maximum mass of heavy elements in Saturn's interior ranges from ~ 6 to 20 M_Earth. The empirical models of Saturn's interior yield a moment of inertia factor varying from 0.22271 to 0.22599 for rotation periods between 10h:32m:35s and 10h:41m:35s, respectively. A long-term precession rate of about 0.754" yr^{-1} is found to be consistent with the derived moment of inertia values and assumed rotation rates over the entire range of investigated rotation rates. This suggests that the long-term precession period of Saturn is somewhat shorter than the generally assumed value of 1.77 x 10^6 years inferred from modeling and observations.
description: accepted for publication in Icarus
Wiener Type Regularity of a Boundary Point for the 3D Lamé System
Creators: name: Luo, Guo
name: Maz'ya, Vladimir G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35E99

description: In this paper, we study the 3D Lamé system and establish its weighted positive definiteness for a certain range of elastic constants. By modifying the general theory developed in Maz'ya (2002), we then show, under the assumption of weighted positive definiteness, that the divergence of the classical Wiener integral for a boundary point guarantees the continuity of solutions to the Lamé system at this point.
description: 19 pages
Do p+p Collisions Flow at RHIC? Understanding One-Particle Distributions, Multiplicity Evolution, and Conservation Laws
Creators: name: Chajȩcki, Zbigniew
name: Lisa, Mike
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Collective, explosive flow in central heavy ion collisions manifests itself in the mass dependence of $p_T$ distributions and femtoscopic length scales, measured in the soft sector ($p_T\lesssim 1$ GeV/c). Measured $p_T$ distributions from proton-proton collisions differ significantly from those from heavy ion collisions. This has been taken as evidence that p+p collisions generate little collective flow, a conclusion in line with naive expectations. We point out possible hazards of ignoring phase-space restrictions due to conservation laws when comparing high- and low-multiplicity final states. Already in two-particle correlation functions, we see clear signals of such phase-space restrictions in low-multiplicity collisions at RHIC. We discuss how these same effects, then, {\it must} appear in the single particle spectra. We argue that the effects of energy and momentum conservation actually dominate the observed systematics, and that $p+p$ collisions may be much more similar to heavy ion collisions than generally thought.
description: 4 pages, 3 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee
Lattice QCD inputs to the CKM unitarity triangle analysis
Creators: name: Laiho, Jack
name: Van de Water, Ruth S.
name: Lunghi, Enrico
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We perform a global fit to the CKM unitarity triangle using the latest experimental and theoretical constraints. Our emphasis is on the hadronic weak matrix elements that enter the analysis, which must be computed using lattice QCD or other nonperturbative methods. Realistic lattice QCD calculations which include the effects of the dynamical up, down, and strange quarks are now available for all of the standard inputs to the global fit. We therefore present lattice averages for all of the necessary hadronic weak matrix elements. We attempt to account for correlations between lattice QCD results in a reasonable but conservative manner: whenever there are reasons to believe that an error is correlated between two lattice calculations, we take the degree of correlation to be 100%. These averages are suitable for use as inputs both in the global CKM unitarity triangle fit and other phenomenological analyses. In order to illustrate the impact of the lattice averages, we make Standard Model predictions for the parameters BK, |Vcb|, and |Vub|/|Vcb|. We find a (2-3) sigma tension in the unitarity triangle, depending upon whether we use the inclusive or exclusive determination of |Vcb|. If we interpret the tension as a sign of new physics in either neutral kaon or B mixing, we find that the scenario with new physics in kaon-mixing is preferred by present data.
description: 33 pages, 12 figures, references added, discussion slightly expanded, updated values of alpha, Vcb inclusive, and Vub inclusive
Non-local quantum correlations and detection processes in QFT
Creators: name: Buscemi, Fabrizio
name: Compagno, Giuseppe
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum detection processes in QFT must play a key role in the description of quantum field correlations, such as the appearance of entanglement, and of causal effects. We consider the detection in the case of a simple QFT model with a suitable interaction to exact treatment, consisting of a quantum scalar field coupled linearly to a classical scalar source. We then evaluate the response function to the field quanta of two-level point-like quantum model detectors, and analyze the effects of the approximation adopted in standard detection theory. We show that the use of the RWA, that characterizes the Glauber detection model, leads in the detector response to non-local terms corresponding to an instantaneously spreading of source effects over the whole space. Other detector models, obtained with non-standard or the no-application of RWA, give instead local responses to field quanta, apart from source independent vacuum contribution linked to preexisting correlations of zero-point field.
description: 23 pages
Magnetic Kronig-Penney model for Dirac electrons in single-layer graphene
Creators: name: Masir, M. Ramezani
name: Vasilopoulos, P.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The properties of Dirac electrons in a magnetic superlattice (SL) on graphene consisting of very high and thin (delta-function) barriers are investigated. We obtain the energy spectrum analytically and study the transmission through a finite number of barriers. The results are contrasted with those for electrons described by the Schrodinger equation. In addition, a collimation of an incident beam of electrons is obtained along the direction perpendicular to that of the SL. We also highlight the analogy with optical media in which the refractive index varies in space.
description: 21 pages, 13 figures, to appear in New Journal of Physics
Abstract Scalars, Loops, and Free Traced and Strongly Compact Closed Categories
Creators: name: Abramsky, Samson
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Logic in Computer Science (cs.LO)
subject: Category Theory (math.CT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We study structures which have arisen in recent work by the present author and Bob Coecke on a categorical axiomatics for Quantum Mechanics; in particular, the notion of strongly compact closed category. We explain how these structures support a notion of scalar which allows quantitative aspects of physical theory to be expressed, and how the notion of strong compact closure emerges as a significant refinement of the more classical notion of compact closed category. We then proceed to an extended discussion of free constructions for a sequence of progressively more complex kinds of structured category, culminating in the strongly compact closed case. The simple geometric and combinatorial ideas underlying these constructions are emphasized. We also discuss variations where a prescribed monoid of scalars can be "glued in" to the free construction.
description: 32 pages
On the Boundary conditions for the Radial Schrodinger Equation
Creators: name: Khelashvili, Anzor A.
name: Nadareishvili, Teimuraz P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Exploring the idea that equation for radial wave function must be compatible with the full Schrodinger equation, a boundary condition is derived.
description: 4 pages
Can a strong magnetic background modify the nature of the chiral transition in QCD?
Creators: name: Fraga, Eduardo S.
name: Mizher, Ana Júlia
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The presence of a strong magnetic background can modify the nature and the dynamics of the chiral phase transition at finite temperature: for high enough magnetic fields, comparable to the ones expected to be created in noncentral high-energy heavy ion collisions at RHIC and the LHC, the original crossover is turned into a first-order transition. We illustrate this effect within the linear sigma model with quarks to one loop in the ${\rm MS}$ scheme for $N_{f}=2$.
description: 4 pages, 2 figures; to appear in the Proceedings of Strong and Electroweak Matter 2008 (SEWM08), August 26-29, Amsterdam, The Netherlands
A Comprehensive Study on Various Statistical Techniques for Prediction of Movie Success
Creators: name: Agarwal, Manav
name: Venugopal, Shreya
name: Kashyap, Rishab
name: Bharathi, R
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The film industry is one of the most popular entertainment industries and one of the biggest markets for business. Among the contributing factors to this would be the success of a movie in terms of its popularity as well as its box office performance. Hence, we create a comprehensive comparison between the various machine learning models to predict the rate of success of a movie. The effectiveness of these models along with their statistical significance is studied to conclude which of these models is the best predictor. Some insights regarding factors that affect the success of the movies are also found. The models studied include some Regression models, Machine Learning models, a Time Series model and a Neural Network with the Neural Network being the best performing model with an accuracy of about 86%. Additionally, as part of the testing data for the movies released in 2020 are analysed.
description: 14 pages, 12 figures Conference: 2nd International Conference on Machine Learning Techniques and Data Science (MLDS 2021)
On the Cameron-Praeger Conjecture
Creators: name: Huber, Michael
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 51E10 (Primary), 05B05 (Secondary), 20B25

description: This paper takes a significant step towards confirming a long-standing and far-reaching conjecture of Peter J. Cameron and Cheryl E. Praeger. They conjectured in 1993 that there are no non-trivial block-transitive 6-designs. We prove that the Cameron-Praeger conjecture is true for the important case of non-trivial Steiner 6-designs, i.e. for 6-$(v,k,λ)$ designs with $λ=1$, except possibly when the group is $P\GammaL(2,p^e)$ with $p=2$ or 3, and $e$ is an odd prime power.
description: 11 pages; to appear in: "Journal of Combinatorial Theory, Series A"
Test configurations and Okounkov bodies
Creators: name: Nystrom, David Witt
Publisher: name: arXiv
Year: 2010
Subjects: subject: Complex Variables (math.CV)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D20; 32G08; 32Q15; 32Q26

description: We associate to a test configuration of an ample line bundle a filtration of the section ring of the line bundle. Using the recent work of Boucksom-Chen we get a concave function on the Okounkov body whose law with respect to Lebesgue measure determines the asymptotic distribution of the weights of the test configuration. We show that this is a generalization of a well-known result in toric geometry. As an application, we prove that the pushforward of the Lebesgue measure on the Okounkov body is equal to a Duistermaat-Heckman measure of a certain deformation of the manifold. Via the Duisteraat-Heckman formula, we get as a corollary that in the special case of an effective $\mathbb{C^{\times}}$-action on the manifold lifting to the line bundle, the pushforward of the Lebesgue measure on the Okounkov body is piecewise polynomial.
description: 24 pages
Impacto: CSIC - Misión Biológica de Galicia (MBG). Artículos
Creators: name: Oficina Técnica De DIGITAL.CSIC
name: Bernal, Isabel
name: Román-Molina, Juan
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2017
Subjects: DIGITAL.CSIC
Colecciones
Acceso abierto
Infografías
Repositorios institucionales
Impacto
Reutilización

description: Fecha de los datos: octubre de 2017.
description: Esta infografía recoge el impacto que ha tenido un trabajo de la colección "CSIC - Misión Biológica de Galicia (MBG). Artículos" de Digital.CSIC.
description: ¿Por qué importa el acceso abierto? Con el portal “Comparte tu historia de Acceso Abierto” DIGITAL.CSIC se une al resto de iniciativas que en todo el mundo demuestran que mayor acceso gratuito a los resultados de la actividad académica y generosas licencias de uso benefician a todos. A través de casos concretos y testimonios personales damos a conocer distintos tipos de usos que recibe la ciencia CSIC en acceso abierto en el repositorio institucional. El portal contiene 35 historias que reflejan cómo la ciencia CSIC es consultada por la comunidad internacional de investigadores, profesores y estudiantes, instituciones culturales y universidades, medios de información, profesionales de la Salud y pacientes, divulgadores del patrimonio científico y cultural, sector de la innovación y el desarrollo, la sociedad civil y apasionados por la ciencia y la cultural en general.
title: Fehlalarme bei AAL-Systemen - Ergebnisse einer Pilotstudie
Creators: name: Polst, Svenja
name: Storck, Sven
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Ambient Assisted Living
subject: Seniors
subject: False Alarm

description: Bisher gibt es wenige publizierte Studien zu Fehlalarmen von Ambient-Assisted-Living-Systemen (AAL-Systemen), die das Empfinden und den Umgang mit diesen aus Nutzersicht beschreiben. In dieser Publikation werden Nutzerdaten und die qualitativen Ergebnisse aus einer Interviewstudie mit Nutzern von einem AAL-System vorgestellt. Die Studie fand im Rahmen des Projekts STuDi statt. Ergebnisse des Projekts werden in dieser Publikation vorgestellt. Es wird auf das Empfinden und den Umgang eines Fehlalarms, die getätigten Gegenmaßnahmen, den Einfluss der Hardware auf die Erfahrungen mit dem AAL-System und den Einfluss des angeschlossenen Hausnotrufsystems eingegangen. Zudem werden Empfehlungen für AAL-Systeme, die aus den Ergebnissen abgeleitet wurden, vorgestellt.
Learning in Quantum Common-Interest Games and the Separability Problem
Creators: name: Lin, Wayne
name: Piliouras, Georgios
name: Sim, Ryann
name: Varvitsiotis, Antonios
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Learning in games has emerged as a powerful tool for machine learning with numerous applications. Quantum games model interactions between strategic players who have access to quantum resources, and several recent works have studied {learning in} the competitive regime of quantum zero-sum games. Going beyond this setting, we introduce quantum common-interest games (CIGs) where players have density matrices as strategies and their interests are perfectly aligned. We bridge the gap between optimization and game theory by establishing the equivalence between KKT (first-order stationary) points of an instance of the Best Separable State (BSS) problem and the Nash equilibria of its corresponding quantum CIG. This allows learning dynamics for the quantum CIG to be seen as decentralized algorithms for the BSS problem. Taking the perspective of learning in games, we then introduce non-commutative extensions of the continuous-time replicator dynamics and the discrete-time best response dynamics/linear multiplicative weights update for learning in quantum CIGs. We prove analogues of classical convergence results of the dynamics and explore differences which arise in the quantum setting. Finally, we corroborate our theoretical findings through extensive experiments.
Engaging researchers with DIGITAL.CSIC
Creators: name: Bernal, Isabel
name: Oficina Técnica De DIGITAL.CSIC
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2018

description: Presentation delivered as part of COAR webinar on repositories strategies to engage researchers on October 31, 2018.
Experimentally friendly bounds on non-Gaussian entanglement from second moments
Creators: name: Adesso, Gerardo
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate that the entanglement in a class of two-mode non-Gaussian states obtained by subtracting photons from Gaussian twin beams can be bounded from above and from below by functionals of the second moments only. Knowledge of the covariance matrix thus suffices for an entanglement quantification with appreciable precision. The absolute error in the entanglement estimation scales with the non-Gaussianity of the considered states.
description: 5 pages, 2 figures. To appear in PRA
Spectral classification of the mass donors in the high-mass X-ray binaries EXO 1722-363 and OAO 1657-415
Creators: name: Mason, A. B.
name: Clark, J. S.
name: Norton, A. J.
name: Negueruela, I.
name: Roche, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report near-infrared observations of the mass donors of the eclipsing high-mass X-ray binary (HMXB) systems EXO 1722-363 and OAO 1657-415 in order to derive their accurate spectral classifications. We determined that EXO 1722-363 was of spectral type B0 - B1 Ia, positioned at a distance 8.0 +2.5/-2.0 kpc with a progenitor mass in the range 30 - 40 M_Sun. Luminosity calculations imply that L_X ~ 10^35 - 10^37 erg s^-1 for this distance range. We conclude that EXO 1722-363 shares many of the properties associated with other X-ray binary B-type supergiant donors. We found that OAO 1657-415 correlates closely with the spectra of a class of transitional objects, the Ofpe/WNL, an intermediate evolutionary stage between massive O type stars leaving the main sequence and evolving into Wolf-Rayets. Due to the wide range range in Luminosity displayed by Ofpe/WNL stars, (log L/L_Sun ~ 5.3 - 6.2) distance determinations are problematic. For OAO 1657-415 we report a distance of 4.4 <= d <= 12 kpc, implying an X-ray luminosity of 1.5 x 10^36 <= L_X <= 10^37 erg s^-1. We have used our new classification of OAO 1657-415 to explain the physical processes responsible for its unique position within the Corbet diagram. Ofpe/WNL stars demonstrate a high rate of mass-loss through a dense stellar wind combined with a low terminal velocity. This combination of wind properties leads to a high accretion rate and transfer of angular momentum to the neutron star in this system. We believe this in turn leads to a smaller instantaneous equilibrium spin period with respect to normal OB supergiants.
description: 6 pages, 3 figures, Accepted for publication in Astronomy and Astrophysics
title: 6. Usable Security und Privacy Workshop
Creators: name: Lo Iacono, Luigi
name: Schmitt, Hartmut
name: Polst, Svenja
name: Heinemann, Andreas
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2020
Subjects: subject: Usable Security
subject: Usable Privacy

description: Usable Security und Privacy hat sich als Forschungsfeld etabliert, ebenso wie der entsprechende Workshop auf der Mensch und Computer, der 2020 zum sechsten Mal stattfinden soll. Wie in den vergangenen fünf Jahren sind in einem ganztätigen Workshop die Präsentation und Diskussion von vier bis sechs Beiträgen aus Forschung und Praxis auf dem Gebiet Usable Security und Privacy vorgesehen, die neue Ansätze, aber auch praxisrelevante Lösungen zur nutzerzentrierten Entwicklung und Ausgestaltung von digitalen Schutzmechanismen thematisieren. Mit dem Workshop soll das etablierte Forum fortgeführt und weiterentwickelt werden, in dem sich Expert*innen aus unterschiedlichen Domänen, z. B. dem Usability-Engineering und Security-Engineering, transdisziplinär austauschen können. Der Workshop wird von den Organisator*innen zum einen Teil als wissenschaftlicher Workshop ausgestaltet. Ein Programmkomitee bewertet die Einreichungen und wählt daraus die zur Präsentation akzeptierten Beiträge aus. Diese werden zudem in den Proceedings der Mensch und Computer 2020 veröffentlicht. Zum anderen Teil soll während des Workshops interaktiv auf aktuelle Entwicklungen und Themen eingegangen werden.
A study of drinking practices in three British Columbia cities
Creators: name: Cutler, Ronald Earl
Publisher: name: University of British Columbia
Year: 2011

description: Previous research has established that there are large regional and demographic differences in drinking practices. The present study was designed to extend this research by conducting a survey of drinking practices of residents in three British Columbia cities located in widely separated regions of the province and differing in demographic composition. A total of 849 subjects, randomly selected from among the general population in each city, were interviewed in their homes. A comprehensive questionnaire, including several standard measures of levels of drinking and problem drinking as well as measures of neuroticism, extroversion and items relating to drug use, smoking and subject's perception of drinking, was employed. Levels of drinking were compared across cities and the levels obtained for the three cities combined were compared to levels found for other samples drawn from among populations in North America and elsewhere.. Levels of drinking were related to demographic, personality and other variables within the combined sample and compared with the extent of these relationships found in previous studies. A consistent pattern of differences was found between the three cities samples. Drinking, heavy drinking and problem drinking were found to be more prevalent in these three cities relative to most other North American samples. Rates were found, on all measures of drinking, to be higher in Rivertown--the city which had undergone rapid expansion during the past decade. Age, sex and income were found to be closely related to levels of drinking. These results were discussed within the framework of a schematic model which speculates about possible relationships and interrelationships between a number of variables and levels of drinking.
The Cost of Local and Global Fairness in Federated Learning
Creators: name: Duan, Yuying
name: Xu, Gelei
name: Shi, Yiyu
name: Lemmon, Michael
Publisher: name: arXiv
Year: 2025
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: With the emerging application of Federated Learning (FL) in finance, hiring and healthcare, FL models are regulated to be fair, preventing disparities with respect to legally protected attributes such as race or gender. Two concepts of fairness are important in FL: global and local fairness. Global fairness addresses the disparity across the entire population and local fairness is concerned with the disparity within each client. Prior fair FL frameworks have improved either global or local fairness without considering both. Furthermore, while the majority of studies on fair FL focuses on binary settings, many real-world applications are multi-class problems. This paper proposes a framework that investigates the minimum accuracy lost for enforcing a specified level of global and local fairness in multi-class FL settings. Our framework leads to a simple post-processing algorithm that derives fair outcome predictors from the Bayesian optimal score functions. Experimental results show that our algorithm outperforms the current state of the art (SOTA) with regard to the accuracy-fairness tradoffs, computational and communication costs. Codes are available at: https://github.com/papersubmission678/The-cost-of-local-and-global-fairness-in-FL .
title: Dealing with different nature-society constellations in the co-design of urban green infrastructure
Creators: name: Hack, Jochen
name: Chapa, Fernando
name: Neumann, Veronica
name: Peréz, María
name: Schiffmann, Conrad
Publisher: name: Ecosystem Services Partnership (ESP)
Year: 2021

description: The transformation of river landscapes due to urbanization can have detrimental impact on river ecosystems and social well-being. These impacts are often the result of a principal focus on housing and transportation services at the cost of social-ecological well-being. Nature-based solutions (NBS) in urban areas, such as green infrastructures, are intended to reconcile ecological and social well-being needs. This contribution presents an inter- and transdisciplinary approach to planning and design of multi-functional green infrastructures at the neighborhood level in Costa Rica. Based on a participatory co-design with local residents in the municipality of Flores three axis of green infrastructures – (1) at the street level, (2) at decentralized places in the neighborhood, and (3) along an urban stream – are developed and implemented in order to achieve a high degree of multi-functionality in improving ecology and social well-being. These three axis of green infrastructures represent different degrees and forms of interactions along a continuum of nature-society relations. The participatory design and implementation process reveals important insights regarding how multi-functionality of NBS can successfully be identified and spatially designed at the local level.
Los tweets de @bibliotecasCSIC en 2016
Creators: name: Unidad De Recursos De Información Científica Para La Investigación (URICI)
Publisher: name: CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Year: 2017
Subjects: Twitter
2016
@bibliotecasCSIC
Bibliotecas del CSIC
Archivos del CSIC
CSIC libraries
CSIC Archives

description: 210 páginas.-- Documento creado el 03/01/2017 en http://tweetbook.in
description: Documento que contiene los tweets publicados en 2016 (1451).