cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Opening the Black Box: Performance Estimation during Code Generation for GPUs
Creators: name: Ernst, Dominik
name: Hager, Georg
name: Holzer, Markus
name: Knorr, Matthias
name: Wellein, Gerhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Performance (cs.PF)
subject: FOS: Computer and information sciences
subject: C.4

description: Automatic code generation is frequently used to create implementations of algorithms specifically tuned to particular hardware and application parameters. The code generation process involves the selection of adequate code transformations, tuning parameters, and parallelization strategies. To cover the huge search space, code generation frameworks may apply time-intensive autotuning, exploit scenario-specific performance models, or treat performance as an intangible black box that must be described via machine learning.
 This paper addresses the selection problem by identifying the relevant performance-defining mechanisms through a performance model coupled with an analytic hardware metric estimator. This enables a quick exploration of large configuration spaces to identify highly efficient candidates with high accuracy.
 Our current approach targets memory-intensive GPGPU applications and focuses on the correct modeling of data transfer volumes to all levels of the memory hierarchy. We show how our method can be coupled to the pystencils stencil code generator, which is used to generate kernels for a range four 3D25pt stencil and a complex two phase fluid solver based on the Lattice Boltzmann Method. For both, it delivers a ranking that can be used to select the best performing candidate.
 The method is not limited to stencil kernels, but can be integrated into any code generator that can generate the required address expressions.
Loschmidt echo and Poincaré recurrences of entanglement
Creators: name: Ermann, Leonardo
name: Frahm, Klaus M.
name: Shepelyansky, Dima L
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study numerically the properties of entanglement of two interacting, or noninteracting, particles evolving in a regime of quantum chaos in the quantum Chirikov standard map. Such pairs can be viewed as interacting, on noninteracting, Einstein-Podolsky-Rosen pairs in a regime of quantum chaos. The analysis is done with such tools as the Loschmidt echo of entanglement and the Poincaré recurrences of entanglement in presence of absorption. The obtained results show unusual features of the entropy of entanglement and the spectrum of Schmidt decomposition with their dependence on interactions at different quantum chaos regimes.
description: 28 pages, 20 figures and 4 pages with 4 figures Supplementary Material
'Profilbildung und Mehrsprachigkeit für Studierende mit Migrationshintergrund' an der Universität Bielefeld
Creators: name: Langelahn, Elke
name: Brandl, Heike
name: Arslan, Emre
Publisher: name: Mehrsprachig in Wissenschaft und Gesellschaft. Interdisziplinäres Symposium zu Mehrsprachigkeit, Bildungsbeteiligung und Potenzialen von Studierenden mit Migrationshintergrund : Tagungsbeiträge
Year: 2013

description: Mehrsprachig in Wissenschaft und Gesellschaft. Interdisziplinäres Symposium zu Mehrsprachigkeit, Bildungsbeteiligung und Potenzialen von Studierenden mit Migrationshintergrund : Tagungsbeiträge, Interdisziplinäres Symposium "Mehrsprachig in Wissenschaft und Gesellschaft", 6.-7. Februar 2012, Bielefeld
Maintaining entropy : developing skills to help graduate sustainable engineers lead change
Creators: name: Cruickshank, H. J.
name: Ainger, C. M.
name: Fenner, R. A.
name: Harding, P.
name: Owen, S. M.
Publisher: name: The University of British Columbia
Year: 2015

description: Evidence is drawn from the 411 alumni of the MPhil in Engineering for Sustainable Development professional practice programme at University of Cambridge to examine whether the sustainability dimension of their education has i) provided them with a mix of skills which they use on a regular basis, ii) equipped them to be more effective in the roles they fulfil, and iii) given them confidence to act as agents of change in developing sustainability thinking and seeking out solutions that satisfy multiple constraints within their organisations. The relevance of the content of this sustainability programme is assessed and frustrations experienced by graduate sustainable engineers and the barriers to change are discussed.
Stability for the Calderón's problem for a class of anisotropic conductivities via an ad-hoc misfit functional
Creators: name: Foschiatti, Sonia
name: Gaburro, Romina
name: Sincich, Eva
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R30

description: We address the stability issue in Calderón's problem for a special class of anisotropic conductivities of the form $σ=γA$ in a Lipschitz domain $Ω\subset\mathbb{R}^n$, $n\geq 3$, where $A$ is a known Lipschitz continuous matrix-valued function and $γ$ is the unknown piecewise affine scalar function on a given partition of $Ω$. We define an ad-hoc misfit functional encoding our data and establish stability estimates for this class of anisotropic conductivity in terms of both the misfit functional and the more commonly used local Dirichlet-to-Neumann map.
description: 31 pages
Top-down systems biology approaches for 'omics'-based tissue and biofluid analytics
Creators: name: Veselkov, Kirill A.
Publisher: name: CELLmicrocosmos neXt Workshop in context of the "German Conference on Bioinformatics" : Proceedings
Year: 2014

description: CELLmicrocosmos neXt Workshop in context of the "German Conference on Bioinformatics" : Proceedings, CELLmicrocosmos neXt Workshop in context of the "German Conference on Bioinformatics", Bielefeld, 28.09.2014
Perturbation approach in Heisenberg equations for lasers
Creators: name: Protsenko, Igor E.
name: Uskov, Alexander V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Nonlinear Heisenberg-Langevin equations are solved analytically by operator Fourier-expansion for the laser in the LED regime. Fluctuations of populations of lasing levels are taken into account as perturbations. Spectra of operator products are calculated as convolutions, preserving Bose commutations for the lasing field operators. It is found that fluctuations of population significantly affect spontaneous and stimulated emissions into the lasing mode, increase the radiation rate, the number of lasing photons and broad the spectrum of a bad cavity thresholdless and the superradiant lasers. The method can be applied to various resonant systems in quantum optics.
description: 13 pages and 5 figures
IKKINCHI JAHON URUSHIDA O'ZBEK AYOLLARI JASORATI
Creators: name: Mardonova, Gulsora
Publisher: name: Zenodo
Year: 2025

description: Ikkinchi jahon urushi frontlarida O‘zbekistonlik ayollar ittifoq tarkibidagi askar va zobitlarning aziz jonlarini asrashda o‘zbek qiziga xos bo‘lgan jasorat va qahramonliklarini namoyon eta oldilar. Bu urushni g‘alaba bilan yakunlanishida o‘zbek ayollarining ham o‘rni beqiyos. Bu ayollarning ko‘pchiligi urushning boshidan to‘plar gumburlashi, o‘qlar yomg‘iri va minalarning chinqirib uchishiga qaramasdan dahshatli kurash maydonlarida o‘zlarining o‘zbek ayoliga xos bo‘lgan mardonavor va jangovar ruh bilan kurash olib bordilar.
'Der und der hat mir neulich das und das erzählt': On the Interpretation of DPs with Article Conjunction
Creators: name: Cieschinger, Maria
name: Ebert, Cornelia
Publisher: name: Norddeutsches Linguistisches Kolloquium (NLK) : Proceedings
Year: 2008

description: In this paper, we investigate DPs with article-conjunction heads in German (AC-DPs). We argue that they are non-referential expressions, which impose certain constraints on the discourse model in which they can felicitously be used. We suggest that AC-DPs presuppose the existence of a previous conversation between the speaker and someone other than the hearer, and that a definite or a name was used in this conversation to refer to the referent of the AC-DP. We also illustrate how the use of AC-DPs can be explained by way of general pragmatic principles like 'Maximise Presupposition'.
description: Norddeutsches Linguistisches Kolloquium (NLK) : Proceedings, 9. Norddeutsches Linguistisches Kolloquium (NLK2008 Bielefeld)
A polynomial-time approximation scheme for parallel two-stage flowshops under makespan constraint
Creators: name: Tong, Weitian
name: Xu, Yao
name: Zhang, Huili
Publisher: name: arXiv
Year: 2022
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: As a hybrid of the Parallel Two-stage Flowshop problem and the Multiple Knapsack problem, we investigate the scheduling of parallel two-stage flowshops under makespan constraint, which was motivated by applications in cloud computing and introduced by Chen et al. [3] recently. A set of two-stage jobs are selected and scheduled on parallel two-stage flowshops to achieve the maximum total profit while maintaining the given makespan constraint. We give a positive answer to an open question about its approximability proposed by Chen et al. [3]. More specifically, based on guessing strategies and rounding techniques for linear programs, we present a polynomial-time approximation scheme (PTAS) for the case when the number of flowshops is a fixed constant.
description: Theoretical Computer Science (2022)
title: How does Data Aggregation Impact Elasticity of Substitution Estimation? Evidence from a New Elasticity Database
Creators: name: Schrammel, Michael
name: Schreiber, Samantha
Publisher: name: United States International Trade Commission
publisherIdentifier: https://ror.org/05hsggr76
publisherIdentifierScheme: ROR
Year: 2023

description: This paper uses a new elasticity of substitution database, estimated with variation in
trade costs, to compare elasticities across different levels of data aggregation and regression types. We find that the OLS estimates in our database tend to be smaller than
the PPML estimates on average. We also find that the magnitude of the elasticities estimated using aggregated data tend to be smaller than the elasticities estimated using
disaggregated data. Additionally, we aggregate the disaggregated elasticity estimates
with trade weights and compare them to the corresponding elasticities estimated with
the aggregated data. The estimates aggregated by trade weight are on average larger
than the estimates from the regression on the aggregated data. The estimates from
the aggregate data may exhibit heterogeneity bias, implying that the trade-weighted
estimates could be a better representation of the elasticities of substitution for aggregated product groups.
Approximation formula for complex spacing ratios in the Ginibre ensemble
Creators: name: Dusa, Ioachim G.
name: Wettig, Tilo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Recently, Sá, Ribeiro and Prosen introduced complex spacing ratios to analyze eigenvalue correlations in non-Hermitian systems. At present there are no analytical results for the probability distribution of these ratios in the limit of large system size. We derive an approximation formula for the Ginibre universality class of random matrix theory which converges exponentially fast to the limit of infinite matrix size. We also give results for moments of the distribution in this limit.
description: reference added, version published in Phys. Rev. E
Assoziationen zu Ober-, Basis- und Unterbegriffen : eine explorative Studie
Creators: name: Heide, Claudia Von Der
name: Borgwaldt, Susanne
Publisher: name: Norddeutsches Linguistisches Kolloquium (NLK) : Proceedings
Year: 2008

description: Der vorliegende Aufsatz untersucht die Organisation des mentalen Lexikons mithilfe einer Assoziationsstudie, in der die Stimuli hinsichtlich ihrer Begriffsebene (Oberbegriffe (z.B. Tier), Basisbegriffe (z.B. Vogel) und Unterbegriffe (z.B. Papagei)) sowie ihrer morphologischen Struktur (Komposita - Simplizia) variieren. Frühere Assoziationsstudien weisen auf eine zentrale Stellung der Basisbegriffe in unserem Wortschatz hin. Im Blickpunkt psycholinguistischer Forschung zu Komposita steht die Frage, ob diese in unserem mentalen Lexikon als Gesamtwort gespeichert bzw. verarbeitet werden oder, abhängig von ihrer semantischen Transparenz in ihren Konstituenten segmentiert sind (z.B. Regenschirm in Regen und Schirm oder Maulwurf in Maul und Wurf). Unsere Resultate unterstützen die Annahme, dass die semantische Transparenz von Komposita auch Assoziationscharakteristika beeinflusst.
description: Norddeutsches Linguistisches Kolloquium (NLK) : Proceedings, 9. Norddeutsches Linguistisches Kolloquium (NLK2008 Bielefeld)
Uniform continuity bound for sandwiched Rényi conditional entropy
Creators: name: Marwah, Ashutosh
name: Dupuis, Frédéric
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We prove a simple uniform continuity bound for the sandwiched Rényi conditional entropy for $α\in [1/2, 1) \cup (1, \infty]$, which is independent of the dimension of the conditioning system.
description: v2 is the published version. We have added some citations and corrected some typos
Discussion Summary
Creators: name: Buschmeier, Hendrik
name: Cafaro, Angelo
name: Chollet, Mathieu
name: De Loor, P.
name: Gris, Iván
name: Hartholt, Arno
name: Jégou, M.
name: Moon, S.
name: Nouri, E.
name: Novick, David
name: Pecune, Florian
name: Popineau, F.
name: Ravenet, B.
name: Robb, A.
name: Vilhjalmsson, Hannes Högni
name: Van Welbergen, Herwin
name: Zadeh, A. A.
name: Zhao, R.
Publisher: name: Workshop on Architectures and Standards for IVAs, held at the "14th International Conference on Intelligent Virtual Agents (IVA 2014)" : Proceedings
Year: 2014

description: Workshop on Architectures and Standards for IVAs, held at the "14th International Conference on Intelligent Virtual Agents (IVA 2014)" : Proceedings, Workshop on Architectures and Standards for IVAs, held at the "14th International Conference on Intelligent Virtual Agents (IVA 2014)",  Boston, USA, August 26
Boolean proportions
Creators: name: Antić, Christian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Discrete Mathematics (cs.DM)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: The author has recently introduced an abstract algebraic framework of analogical proportions within the general setting of universal algebra. This paper studies analogical proportions in the boolean domain consisting of two elements 0 and 1 within his framework. It turns out that our notion of boolean proportions coincides with two prominent models from the literature in different settings. This means that we can capture two separate modellings of boolean proportions within a single framework which is mathematically appealing and provides further evidence for the robustness and applicability of the general framework.
The impact of project-based learning on self-directed learning readiness
Creators: name: Eggermont, Marjan
name: Brennan, Robert W.
name: O’Neill, Tom
Publisher: name: The University of British Columbia
Year: 2015

description: All incoming students at the University of Calgary’s Schulich School of Engineering take a first year Design and Communication course that requires them to work in teams of 4 on a number of open-ended design projects. The projects require students to be persistent, self-disciplined, and curious, while carefully organizing and pacing themselves to reach their end goal. In this paper, we use the Self-directed Learning Readiness Scale (SDLRS) survey to determine if, by practicing these skills, students’ self-directed learning readiness is improved. We compare a compare a new cohort of first-year engineering students with a cohort of first-years students with project-based learning experience. The results suggest that project-based learning experiences do have a positive impact on self-directed learning readiness.
A Smolyak algorithm adapted to a system-bath separation: application to an encapsulated molecule with large amplitude motions
Creators: name: Chen, Ahai
name: Benoit, David M.
name: Scribano, Yohann
name: Nauts, André
name: Lauvergnat, David
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: J.2
subject: 81-08, 81V55

description: A Smolyak algorithm adapted to system-bath separation is proposed for rigorous quantum simulations. This technique combines a sparse grid method with the system-bath concept in a specific configuration without limitations on the form of the Hamiltonian, thus achieving a highly efficient convergence of the excitation transitions for the "system" part. Our approach provides a general way to overcome the perennial convergence problem for the standard Smolyak algorithm and enables the simulation of floppy molecules with more than a hundred degrees of freedom.The efficiency of the present method is illustrated on the simulation of H$_2$ caged in an sII clathrate hydrate including two kinds of cage modes. The transition energies are converged by increasing the number of normal modes of water molecules. Our results confirm the triplet splittings of both translational and rotational ($j=1$) transitions of the H$_2$ molecule. Furthermore, they show a slight increase of the translational transitions with respect to the ones in a rigid cage.
description: 5 pages, 3 figures
Improving Casazza-Kalton-Christensen-van Eijndhoven Perturbation with Applications
Creators: name: Krishna, K. Mahesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 26A16, 47A55, 42C15

description: Let $ \mathcal{X}$, $ \mathcal{Y}$ be Banach spaces and $S:\mathcal{X} \to \mathcal{Y} $ be an invertible Lipschitz map. Let $ T : \mathcal{X}\rightarrow \mathcal{Y}$ be a map and there exist $ λ_1,λ_2 \in \left [0, 1 \right )$ such that \begin{align*}
 \|Tx-Ty-(Sx-Sy)\|\leqλ_1\|Sx-Sy\|+λ_2\|Tx-Ty\|,\quad \forall x,y \in \mathcal{X}. \end{align*} Then we prove that $T$ is an invertible Lipschitz map. This improves 25 years old Casazza-Kalton-Christensen-van Eijndhoven perturbation. It also improves 28 years old Soderlind-Campanato perturbation and 2 years old Barbagallo-Ernst-Thera perturbation. We give applications to the theory of metric frames. The notion of Lipschitz atomic decomposition for Banach spaces is also introduced.
description: 18 Pages, 0 Figures, Improves Casazza-Kalton-Christensen-van Eijndhoven-Soderlind-Campanato-Barbagallo-Ernst-Thera perturbation
Measurement of the inclusive and differential $\mathrm{t\bar{t}}γ$ cross sections in the dilepton channel and effective field theory interpretation in proton-proton collisions at $\sqrt{s} =$ 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The production cross section of a top quark pair in association with a photon is measured in proton-proton collisions in the decay channel with two oppositely charged leptons (e$^\pmμ^\mp$, e$^+$e$^-$, or $μ^+μ^-$). The measurement is performed using 138 fb$^{-1}$ of proton-proton collision data recorded by the CMS experiment at $\sqrt{s} =$ 13 TeV during the 2016-2018 data-taking period of the CERN LHC. A fiducial phase space is defined such that photons radiated by initial-state particles, top quarks, or any of their decay products are included. An inclusive cross section of 175.2 $\pm$ 2.5 (stat) $\pm$ 6.3 (syst) fb is measured in a signal region with at least one jet coming from the hadronization of a bottom quark and exactly one photon with transverse momentum above 20 GeV. Differential cross sections are measured as functions of several kinematic observables of the photon, leptons, and jets, and compared to standard model predictions. The measurements are also interpreted in the standard model effective field theory framework, and limits are found on the relevant Wilson coefficients from these results alone and in combination with a previous CMS measurement of the $\mathrm{t\bar{t}}γ$ production process using the lepton+jets final state.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-21-004 (CMS Public Pages)
An edible education in sustainable development : investigating chocolate manufacturing in a laboratory-based undergraduate engineering course
Creators: name: Jannini, Alexander V. Struck
name: Wisniewski, Christian
name: Staehle, Mary M.
name: Stanzione, Joseph F.
name: Savelski, Mariano J.
Publisher: name: The University of British Columbia
Year: 2015

description: Green engineering, sustainability, and sustainable development are topics of great import to all engineering disciplines. To introduce students to these topics, hands-on experiments were developed for inclusion within a multi-disciplinary freshman engineering course. In these experiments, students learned to produce chocolate truffles and, ultimately, challenged to analyze and optimize the sustainability of the process with a cradle-to-gate and social life cycle assessments. Student analyses incorporated waste management strategies, overall energy and material consumption calculations, carbon reduction strategies, the use of engineering software, and the importance of fair trade in this industry. Eighty-nine freshman engineering students at Rowan University completed the experiments. Pre- and post-tests were used to evaluate the effectiveness of the course on increasing student knowledge of sustainability, of sustainable development, and of the impact engineers can have on socioeconomics. Preliminary results indicate that the course was effective in enhancing student knowledge and awareness of the social and environmental implications of chocolate manufacturing. A complete analysis and description are presented in this paper.
TourBERT: A pretrained language model for the tourism industry
Creators: name: Arefieva, Veronika
name: Egger, Roman
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The Bidirectional Encoder Representations from Transformers (BERT) is currently one of the most important and state-of-the-art models for natural language. However, it has also been shown that for domain-specific tasks it is helpful to pretrain BERT on a domain-specific corpus. In this paper, we present TourBERT, a pretrained language model for tourism. We describe how TourBERT was developed and evaluated. The evaluations show that TourBERT is outperforming BERT in all tourism-specific tasks.
description: Identified a mistake in our calculations. Will fix the problem within the next weeks and resubmit
Polynomial decompositions with invariance and positivity inspired by tensors
Creators: name: Cuevas, Gemma De las
name: Klingler, Andreas
name: Netzer, Tim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 11E25, 14N07 (Primary), 13A50 (Secondary)

description: We present a framework to decompose real multivariate polynomials while preserving invariance and positivity. This framework has been recently introduced for tensor decompositions, in particular for quantum many-body systems. Here we transfer results about decomposition structures, invariance under permutations of variables, positivity, rank inequalities and separations, approximations, and undecidability to real polynomials. Specifically, we define invariant decompositions of polynomials and characterize which polynomials admit such decompositions. We then include positivity: We define invariant separable and sum-of-squares decompositions, and characterize the polynomials similarly. We provide inequalities and separations between the ranks of the decompositions, and show that the separations are not robust with respect to approximations. For cyclically invariant decompositions, we show that it is undecidable whether the polynomial is nonnegative or sum-of-squares for all system sizes. Our work sheds new light on polynomials by putting them on an equal footing with tensors, and opens the door to extending this framework to other tensor product structures.
description: v2: 39 pages, close to published version
ResearchBox 3871, 'Challenging the Conceptualization and Measurement of Conflict-Response Styles', https://researchbox.org/3871
Creators: name: Robert  Trevethan
name: Omid Mahdieh
Publisher: name: Zenodo
Year: 2025

description: Box title: 'Challenging the Conceptualization and Measurement of Conflict-Response Styles'   Reference: Robert Trevethan, Omid Mahdieh, 'Challenging the Conceptualization and Measurement of Conflict-Response Styles',  Pre-Publication DepositoryNote: this backup was created automatically by a ResearchBox bot
Substructural fixed-point theorems and the diagonal argument: theme and variations
Creators: name: Roberts, David Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Category Theory (math.CT)
subject: Logic in Computer Science (cs.LO)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: F.4.1
subject: 03B47, 18A15

description: This article re-examines Lawvere's abstract, category-theoretic proof of the fixed-point theorem whose contrapositive is a `universal' diagonal argument. The main result is that the necessary axioms for both the fixed-point theorem and the diagonal argument can be stripped back further, to a semantic analogue of a weak substructural logic lacking weakening or exchange.
description: v1 20 pages; v2 22 pages, added additional final section on fixed-point operators; v3 final journal version
Supplementary document for Electromagnetic induction for reinforced concrete blasting: Principles, simulations, experiments, and applications - 6094819.pdf
Creators: name: Wang, Min
name: Wang, Zhan
name: Chen, Zhaojun
name: Wang, Xiaopeng
name: Lv, Ruichan
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: supporting information file
ResearchBox 3900, 'Discrimination_Identity_Intersections', https://researchbox.org/3900
Creators: name: Elena Ball
name: Melanie C. Steffens
name: Peter Pylypiw
name: Elisabeth Prestele
Publisher: name: Zenodo
Year: 2025

description: Box title: 'Discrimination_Identity_Intersections'   Reference: Elena Ball; Peter Pylypiw; Elisabeth Prestele; Melanie C. Steffens, 'How do Intersections of Sexual Orientation and Race Affect Impressions of Women in a Counter-stereotypical Job Context? A Comprehensive Test Manipulating Individuating Competence Information', Collabra:PsychologyNote: this backup was created automatically by a ResearchBox bot
Urns & Tubes
Creators: name: Jacobs, Bart
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: G.3
subject: 60A05

description: Urn models play an important role to express various basic ideas in probability theory. Here we extend this urn model with tubes. An urn contains coloured balls, which can be drawn with probabilities proportional to the numbers of balls of each colour. For each colour a tube is assumed. These tubes have different sizes (lengths). The idea is that after drawing a ball from the urn it is dropped in the urn of the corresponding colour. We consider two associated probability distributions. The first-full distribution on colours gives for each colour the probability that the corresponding tube is full first, before any of the other tubes. The negative distribution on natural numbers captures for a number k the probability that all tubes are full for the first time after k draws.
 This paper uses multisets to systematically describe these first-full and negative distributions in the urns & tubes setting, in fully multivariate form, for all three standard drawing modes (multinomial, hypergeometric, and Polya).
Design and early development of a MOOC on "Sustainability in Everyday Life" : role of the teachers
Creators: name: Janssen, Matty
name: Claesson, Anna Nyström
name: Lindqvist, Maria
Publisher: name: The University of British Columbia
Year: 2015

description: Universities all over the world have developed Massive Online Open Courses (MOOCs) to attract students and explore new ways of learning. The MOOC “Sustainability in Everyday Life” (SiEL) is currently in its design and early development stage at Chalmers University of Technology. It aims at developing the MOOC participant’s capacity to appreciate the complexity of sustainable everyday life by developing skills such as systems thinking and critical reflection on the information flow in public media. This paper aims at sharing first experiences regarding the design and early development of the SiEL MOOC and identifying the role(s) of the teachers and its features during the course design and early development based on these first experiences. An action research approach was used to reach these aims, and the teachers’ narratives about these first experiences were used as data source. Three distinct processes (pedagogical, production and interaction) and six roles (owners, teachers, learners, designers, developers and negotiators) were identified. The teachers’ roles and the processes and activities taking place during the design and early development are closely linked to each other and need to be carefully considered in order to guarantee a successful MOOC design and development process.
Design choice and machine learning model performances
Creators: name: Arboretti, Rosa
name: Ceccato, Riccardo
name: Pegoraro, Luca
name: Salmaso, Luigi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: An increasing number of publications present the joint application of Design of Experiments (DOE) and machine learning (ML) as a methodology to collect and analyze data on a specific industrial phenomenon. However, the literature shows that the choice of the design for data collection and model for data analysis is often not driven by statistical or algorithmic advantages, thus there is a lack of studies which provide guidelines on what designs and ML models to jointly use for data collection and analysis. This article discusses the choice of design in relation to the ML model performances. A study is conducted that considers 12 experimental designs, 7 families of predictive models, 7 test functions that emulate physical processes, and 8 noise settings, both homoscedastic and heteroscedastic. The results of the research can have an immediate impact on the work of practitioners, providing guidelines for practical applications of DOE and ML.
description: Supplemental material at the end of the manuscript. 7 tables, 8 figures. Quality and Reliability Engineering International (2022)
The Pebble-Relation Comonad in Finite Model Theory
Creators: name: Montacute, Yoàv
name: Shah, Nihil
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The pebbling comonad, introduced by Abramsky, Dawar and Wang, provides a categorical interpretation for the k-pebble games from finite model theory. The coKleisli category of the pebbling comonad specifies equivalences under different fragments and extensions of infinitary k-variable logic. Moreover, the coalgebras over this pebbling comonad characterise treewidth and correspond to tree decompositions. In this paper we introduce the pebble-relation comonad, which characterises pathwidth and whose coalgebras correspond to path decompositions. We further show that the existence of a coKleisli morphism in this comonad is equivalent to truth preservation in the restricted conjunction fragment of k-variable infinitary logic. We do this using Dalmau's pebble-relation game and an equivalent all-in-one pebble game. We then provide a similar treatment to the corresponding coKleisli isomorphisms via a bijective version of the all-in-one pebble game. Finally, we show as a consequence a new Lovász-type theorem relating pathwidth to the restricted conjunction fragment of k-variable infinitary logic with counting quantifiers.
description: Extended version of the paper in Logic in Computer Science (LICS) 2022 Proceedings
title: Who uses the digital data archive? An exploratory study of DANS
title: Actual Poster
titleType: Subtitle
Creators: name: Borgman, Christine L.
name: Van de Sompel, Herbert
name: Scharnhorst, Andrea
name: Van den Berg, Henk
name: Treloar, Andrew
Publisher: name: Zenodo
Year: 2024

description: Surprisingly little is known about the uses and users of digital data archives, about relationships between users and the staff of data archives, or how these behaviors vary by discipline, geographic region, policy, and other factors. Digital data archives are not a single type of institution - they vary widely in organizational structure, mission, collection, funding, and relationships to their users and other stakeholders.

We present an exploratory study of EASY, the Electronic Self-Archiving SYstem, a digital archive hosted at DANS. DANS was founded in 2005 as an institute of the Royal Netherlands Academy of Arts and Scienc- es (KNAW) and of the Netherlands Organisation for Scientific Research (NWO). DANS is responsible for archiving 50 years of digital research data in the social sciences and humanities. We present a number of visual explorations with the goal of identifying methods for studying the contributors, consumers, and role of archivists in digital data archives. In particular we address RESEARCH about users; CURATION of digital content, and interfaces for NAVIGATION.

This is the poster related to the entry in the ASIS&T Proceedings 2025. 

Borgman, C. L., Van de Sompel, H., Scharnhorst, A., van den Berg, H., & Treloar, A. (2015). Who uses the digital data archive? An exploratory study of DANS. In Proceedings of the Association for Information Science and Technology (Vol. 52, pp. 1–4). http://doi.org/10.1002/pra2.2015.145052010096
Design Justice: Hey Siri, Why Are You Always a Woman?
Creators: name: Ko, Busung
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 330310
subject: Interaction and experience design
classificationCode: 330306
subject: Design practice and methods
classificationCode: 460806
subject: Human-computer interaction

description: Hey Siri, Why Are You Always a Woman? is a student coursework for INM317 Design Justice module, led by Priego E., MSc Human-Computer Interaction Design at City St. George's, University of London. This zine critically explores how AI voice assistants reinforce gender stereotypes through design defaults, challenging readers to rethink voice, power, and participation in technology.This deposit includes two files: an A4 three-page print-ready PDF of the zine; an A4 twelve-page PDF for viewing the zine online. If you print it out and try to make a physical zine by yourself, please have a look at an instruction—How to make a 12 page zine by Secret Envelope Productions on YouTube.
Plasma solitons in gated two-dimensional electron systems: exactly solvable analytical model for the regime beyond weak non-linearity
Creators: name: Zabolotnykh, A. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We analytically study plasma solitary waves, or solitons, in a two-dimensional (2D) electron system (ES) placed in close proximity to and between two ideal metallic gates. As a rule, solitons are described using a perturbative approach applicable only in the weak non-linearity regime. In contrast, we analyze solitons considering a non-perturbative model. This framework enables an exact analytical description of the soliton shape. Moreover, it can be achieved in the regime beyond weak non-linearity -- when the concentration deviation due to the soliton is of the order of the equilibrium concentration. We determine the conditions required for a soliton to exist and derive the relationship between its amplitude, width, and velocity. We believe that our results obtained for the given model can provide valuable insight into the physics of non-linear waves.
description: 6 pages, 3 figures
Terminal Embeddings in Sublinear Time
Creators: name: Cherapanamjeri, Yeshwanth
name: Nelson, Jelani
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Computational Geometry (cs.CG)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Recently (Elkin, Filtser, Neiman 2017) introduced the concept of a {\it terminal embedding} from one metric space $(X,d_X)$ to another $(Y,d_Y)$ with a set of designated terminals $T\subset X$. Such an embedding $f$ is said to have distortion $ρ\ge 1$ if $ρ$ is the smallest value such that there exists a constant $C>0$ satisfying
 \begin{equation*}
 \forall x\in T\ \forall q\in X,\ C d_X(x, q) \le d_Y(f(x), f(q)) \le C ρd_X(x, q) .
 \end{equation*}
 When $X,Y$ are both Euclidean metrics with $Y$ being $m$-dimensional, recently (Narayanan, Nelson 2019), following work of (Mahabadi, Makarychev, Makarychev, Razenshteyn 2018), showed that distortion $1+ε$ is achievable via such a terminal embedding with $m = O(ε^{-2}\log n)$ for $n := |T|$. This generalizes the Johnson-Lindenstrauss lemma, which only preserves distances within $T$ and not to $T$ from the rest of space. The downside of prior work is that evaluating their embedding on some $q\in \mathbb{R}^d$ required solving a semidefinite program with $Θ(n)$ constraints in~$m$ variables and thus required some superlinear $\mathrm{poly}(n)$ runtime. Our main contribution in this work is to give a new data structure for computing terminal embeddings. We show how to pre-process $T$ to obtain an almost linear-space data structure that supports computing the terminal embedding image of any $q\in\mathbb{R}^d$ in sublinear time $O^* (n^{1-Θ(ε^2)} + d)$. To accomplish this, we leverage tools developed in the context of approximate nearest neighbor search.
Retarded room temperature Hamaker coefficients between bulk elemental metals
Creators: name: Tolias, P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The exact Lifshitz theory is utilized for the systematic calculation of the retarded room temperature Hamaker coefficients between 26 identical isotropic elemental metals embedded in vacuum or pure water. The full spectral method, complemented with a Drude model low frequency extrapolation, is employed for metals with input from extended-in-frequency dielectric data, while the simple spectral method is employed for water with input from three dielectric representations. The accuracy of common Lifshitz approximations is quantified. A novel compact semi-empirical expression is proposed for the separation-dependence of the Hamaker coefficient that is demonstrated to be very accurate for all combinations.
description: 15 pages, 5 figures, 9 tables
Realizable Learning is All You Need
Creators: name: Hopkins, Max
name: Kane, Daniel M.
name: Lovett, Shachar
name: Mahajan, Gaurav
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: 68Q32

description: The equivalence of realizable and agnostic learnability is a fundamental phenomenon in learning theory. With variants ranging from classical settings like PAC learning and regression to recent trends such as adversarially robust learning, it's surprising that we still lack a unified theory; traditional proofs of the equivalence tend to be disparate, and rely on strong model-specific assumptions like uniform convergence and sample compression.
 In this work, we give the first model-independent framework explaining the equivalence of realizable and agnostic learnability: a three-line blackbox reduction that simplifies, unifies, and extends our understanding across a wide variety of settings. This includes models with no known characterization of learnability such as learning with arbitrary distributional assumptions and more general loss functions, as well as a host of other popular settings such as robust learning, partial learning, fair learning, and the statistical query model.
 More generally, we argue that the equivalence of realizable and agnostic learning is actually a special case of a broader phenomenon we call property generalization: any desirable property of a learning algorithm (e.g. noise tolerance, privacy, stability) that can be satisfied over finite hypothesis classes extends (possibly in some variation) to any learnable hypothesis class.
Nonlocal Nonlinear Schrodinger Equation on Metric Graphs
Creators: name: Sabirov, K.
name: Matrasulov, D.
name: Akramov, M.
name: Susanto, H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We consider PT-symmetric, nonlocal nonlinear Schrodinger equation on metric graphs. Vertex boundary conditions are derived from the conservation laws. Soliton solutions are obtained for simplest graph topologies, such as star and tree graphs. Integrability of the problem is shown by proving existence of infinite number of conservation laws.
Assessment of Effective-One-Body Radiation Reactions for Generic Planar Orbits
Creators: name: Albanesi, Simone
name: Nagar, Alessandro
name: Bernuzzi, Sebastiano
name: Placidi, Andrea
name: Orselli, Marta
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we assess the performances of different analytical prescriptions for the effective-one-body (EOB) radiation reaction along generic planar orbits using exact numerical result in the test-mass limit. We consider three prescriptions put forward in the recent literature: (i) the quasicircular prescription (QC), (ii) the QC with second post-Newtonian (2PN) order noncircular corrections (QC2PN), and (iii) the QC corrected by the noncircular Newtonian prefactor (NCN). The analytical fluxes are then compared against the exact fluxes that are computed by solving the Teukolsky equation with a test-mass source in geodesic motion. We find that the NCN prescription is the most accurate for both eccentric and hyperbolic orbits and it is in robust agreement also for large values of the eccentricity. This result carries over to the comparable masses, as we discuss for a numerical-relativity (NR) case study. We also demonstrate that, while the EOB/NR waveform unfaithfulness is a necessary check for the precision of EOB models, the direct comparison of EOB/NR fluxes is a more stringent and informative test to select the best prescription. Finally, we propose an improved radiation reaction, NCN2PN, that includes noncircular 2PN corrections, in resummed form, as a further multiplicative contribution and that is valid for any mass ratio.
description: 23 pages, 15 figures, Phys. Rev. D 105, 104031
Developing integrated science, technology, engineering and mathematics (STEM) projects in education
Creators: name: DeCoito, Isha
Publisher: name: The University of British Columbia
Year: 2015

description: Science, technology, engineering, and mathematics (STEM) is an emphasis which stresses a multidisciplinary approach for better preparing all students in STEM subjects, and increasing the number of postsecondary graduates who are prepared for STEM occupations. The ability to understand and use STEM facts, principles, and techniques are highly transferable skills that enhance an individual’s ability to succeed in school and beyond, across a wide array of disciplines. This study focuses on STEM projectbased learning which integrates engineering design principles, mathematics, science, and technology concepts with the K-12 curriculum. The infusion of design principles enhances real-world applicability and helps prepare students for post-secondary education, with an emphasis on making connections to what STEM professionals actually do in their jobs. This study adopts an integrated approach to teaching STEM education and is grounded in situated cognition theory which highlights the fact that understanding how knowledge and skills can be applied is as important as learning the knowledge and skills itself, as well as recognizing that the contexts are critical to the learning process. This study is unique as it examines the attributes of STEM education using an organic approach to curriculum development and a unique focus on STEM concepts borne of the motivation to reinforce and integrate engineering, math, and science concepts. To be effective, teachers need content knowledge and expertise in teaching that content, but research suggests that science and mathematics teachers are underprepared for these demands; weak initial teacher preparation heightens the importance of continuing professional development. This mixed-methods study explored teacher candidates’ development of 15 digital STEM projects focusing on various topics, including the environment and sustainability, health and well-being, energy efficiency, and climate change. Through the development of STEM projects, findings reveal that teacher candidates’ interest and engagement in STEM increased, and their understanding of STEM education and learning of STEM concepts were positively impacted as they designed curricula addressing STEM education.
A Faithful and Quantitative Notion of Distant Reduction for the Lambda-Calculus with Generalized Applications
Creators: name: Santo, José Espírito
name: Kesner, Delia
name: Peyrot, Loïc
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We introduce a call-by-name lambda-calculus $λJn$ with generalized applications which is equipped with distant reduction. This allows to unblock $β$-redexes without resorting to the standard permutative conversions of generalized applications used in the original $ΛJ$-calculus with generalized applications of Joachimski and Matthes. We show strong normalization of simply-typed terms, and we then fully characterize strong normalization by means of a quantitative (i.e. non-idempotent intersection) typing system. This characterization uses a non-trivial inductive definition of strong normalization --related to others in the literature--, which is based on a weak-head normalizing strategy. We also show that our calculus $λJn$ relates to explicit substitution calculi by means of a faithful translation, in the sense that it preserves strong normalization. Moreover, our calculus $λJn$ and the original $ΛJ$-calculus determine equivalent notions of strong normalization. As a consequence, $λJ$ inherits a faithful translation into explicit substitutions, and its strong normalization can also be characterized by the quantitative typing system designed for $λJn$, despite the fact that quantitative subject reduction fails for permutative conversions.