cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Domain walls, fusion rules and conformal field theory in the quantum Hall regime
Creators: name: Ardonne, Eddy
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We provide a simple way to obtain the fusion rules associated with elementary quasi-holes over quantum Hall wave functions, in terms of domain walls. The knowledge of the fusion rules is helpful in the identification of the underlying conformal field theory describing the wave functions. We obtain the fusion rules, and explicitly give a conformal field theory description, for a two-parameter family (k,r) of wave functions. These include the Laughlin, Moore-Read and Read-Rezayi states when r=2. The `gaffnian' wave function is the prototypical example for r>2, in which case the conformal field theory is non-unitary.
description: 4 pages
Dispersionless BKP equation, the Manakov-Santini system and Einstein-Weyl structures
Creators: name: Bogdanov, L. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We construct a map of solutions of the dispersionless BKP (dBKP) equation to solutions of the Manakov-Santini (MS) system. This map defines an Einstein-Weyl structure corresponding to the dBKP equation through the general Lorentzian Einstein-Weyl structure corresponding to the MS system. We give a spectral characterisation of reduction of the MS system which singles out the image of the dBKP equation solutions and also consider more general reductions of this class. We define the BMS system and extend the map defined above to the map (Miura transformation) of solutions of the BMS system to solutions of the MS system, thus obtaining an Einstein-Weyl structure for the BMS system.
description: 9 pages, LaTeX
Photoelectric response of localized states in silica glass
Creators: name: Trukhin, A. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The photoelectric response of pure silica glasses excited by excimer lasers has been studied. The samples were made under various conditions. Photoelectric polarization of samples due to the Dember effect has been registered. The signal was recorded under the conditions of a space charge limited current. The space charge resulting from the capture of electrons and holes creates a static electric field that prevents diffusion of released charge carriers. The current registration in the external circuit stops, despite the continuation of photoexcitation. This effect was used as a fact of measuring the photocurrent in the sample volume instead of the parasitic current that is not associated with the sample. The screen has been chosen to prevent the influence of a spurious signal. It has been found that charge carriers are released when excited in the spectral absorption range of localized states of silica. Based on the Dember effect, the sign of the photoelectric response shows the type of charge carriers - an electron or a hole is mobile. Thus, a sample containing aluminum without alkali ions gives a negative signal, which indicates the diffusion of electrons at 290 K, since aluminum is an effective hole trap. An oxygen-deficient sample at 290 K provides a positive signal indicating the diffusion of holes, because the center of oxygen deficiency is an effective electron trap. This sample at 100 K provides a negative signal due to the effective self-trapping of holes.
description: 10 pages, 9 figures
Color variations of morphological parameters: the importance of small differences
Creators: name: Cortesi, Arianna
Publisher: name: Zenodo
Year: 2021

description: I will present preliminary results obtained analysing bright galaxies of the novel miniJ-PAS observations with GALFITM ( a multiwavelenghts implementation of GALFIT - to perform parametric fits of galaxy images) and Morfometryka ( MFMTK - a method to retrieve non-parametric and parametric measuraments from the galaxy images). GALFITM allows us to recover the SED of the bulge and the disk of the galaxy, that can be used to recover the stellar population of the galaxies' components. MFMTK outputs (concentration, hentropy ..) are mainly independent of the resolution and can probe galaxies' morphlogies at various redshits. Moreover, both parametric and non-parametric measuraments present a promising dependency on wavelenghts, suggesting we can explore such dependency to identify galaxies' types.
A drl based distributed formation control scheme with stream based collision avoidance
Creators: name: Qiu, Xinyou
name: Li, Xiaoxiang
name: Wang, Jian
name: Wang, Yu
name: Shen, Yuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Formation and collision avoidance abilities are essential for multi-agent systems. Conventional methods usually require a central controller and global information to achieve collaboration, which is impractical in an unknown environment. In this paper, we propose a deep reinforcement learning (DRL) based distributed formation control scheme for autonomous vehicles. A modified stream-based obstacle avoidance method is applied to smoothen the optimal trajectory, and onboard sensors such as Lidar and antenna arrays are used to obtain local relative distance and angle information. The proposed scheme obtains a scalable distributed control policy which jointly optimizes formation tracking error and average collision rate with local observations. Simulation results demonstrate that our method outperforms two other state-of-the-art algorithms on maintaining formation and collision avoidance.
description: 5 pages, 5 figures, been accepted and to be published in IEEE International Conference on Autonomous Systems 2021
A comprehensive study of the effect of thermally induced surface terminations on nanodiamonds electrical properties
Creators: name: Sturari, Sofia
name: Varzi, Veronica
name: Aprà, Pietro
name: Britel, Adam
name: Amine, Nour-Hanne
name: Andrini, Greta
name: Corte, Emilio
name: Tomagra, Giulia
name: Mino, Lorenzo
name: Olivero, Paolo
name: Picollo, Federico
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Nanodiamonds (NDs) gained increasing attention in multiple research areas due to the possibility of tuning their physical and chemical features by functionalizing their surface. This has a crucial impact on their electrical properties, which are essential in applications such as the development of innovative sensors and in the biomedical field. The great interest in electrical conduction in NDs has driven the scientific community to its extensive investigation. The role of various functionalities has been considered and different conduction mechanisms have been proposed. In this work, we reported on a systematic study of the modification of the electrical properties of differently sized NDs, as a function of different thermal treatments in air, hydrogen or inert atmosphere. Samples were electrically characterized in controlled humidity conditions to consider the influence of water on conductivity. NDs electrical properties were interpreted in connection with their surface chemistry and structural features, probed with infrared and Raman spectroscopies. The presence of surface graphite, hydrogen terminations or water adsorbed on hydrophilic oxygen-containing functional groups rendered NDs more conductive. These moieties indeed enabled different conduction mechanisms, which were respectively graphite-mediated conduction, water-induced transfer doping and Grotthus mechanism in surface-adsorbed water. The effect of particles size on conductivity has also been evaluated and discussed. Our experimental findings shed light on the link between surface modifications and electrical properties of NDs, providing at the same time an interpretative key to understanding the effect of particles dimensions.
ESA Climate Change Initiative Plus - Soil Moisture Product User Guide (PUG) Supporting Product Version v09.1
Creators: name: Rodriguez-Fernandez, Nemesio
name: van der Schalie, Robin
name: Preimesberger, Wolfgang
name: Pasik, Adam
name: Scanlon, Tracy
name: Kidd, Richard
Publisher: name: Zenodo
Year: 2024
Subjects: Essential Climate Variable
Soil Moisture
Product User Guide
ESA
Climate Change Initiative

description: This Product User Guide provides the specifications of the ESA CCI Soil Moisture (SM) v09.1 product. The targeted audience of this document is mainly the product users. The ESA CCI SM v09.1 product consists of three surface soil moisture data sets: The “ACTIVE Product” and the “PASSIVE Product” were created by fusing scatterometer and radiometer soil moisture products, respectively; The “COMBINED Product” is a blended product based on the former two data sets. Data files are provided as NetCDF-4 classic format and comprise global merged surface soil moisture datasets at daily temporal resolution. The data set spans over 40 years covering the period from November 1978 to December 31st 2023.

This document forms the deliverable D4.2 Version 2, Product Users Guide (PUG) and was compiled for the European Space Agency (ESA) Climate Change Initiative Plus Soil Moisture Project (ESRIN Contract No: 4000126684/19/I-NB: ”ESA CCI+ Phase 1 New R&D on CCI ECVS Soil Moisture”).

For more information on the CCI programme of ESA see https://climate.esa.int/en/.
Non-supersymmetric AdS$_6$ and the swampland
Creators: name: Apruzzi, Fabio
name: De Luca, G. Bruno
name: Monaco, Gabriele Lo
name: Uhlemann, Christoph F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss infinite families of non-supersymmetric AdS$_6$ solutions in Type IIB string theory. They are siblings of supersymmetric solutions which are associated with $(p,q)$ 5-brane webs and holographically dual to 5d SCFTs engineered by those brane webs. The non-supersymmetric backgrounds carry identical 5-brane charges and are connected to the supersymmetric ones by RG flows. We study the stability of the non-supersymmetric solutions, identifying perturbative and non-perturbative decay channels for all the backgrounds explicitly available. We also identify likely decay mechanisms for solutions that have not been constructed explicitly but may be expected to exist based on brane web considerations. Finally, we exclude scale separation by constructing universal spin 2 modes with masses comparable to the mass-scale of the cosmological constant.
description: 49 pages, 9 figures
Microlensing Evidence That A Type 1 Quasar Is Viewed Face On
Creators: name: Poindexter, Shawn
name: Kochanek, Christopher S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using a microlensing analysis of 11-years of OGLE V-band photometry of the four image gravitational lens Q2237+0305, we measure the inclination i of the accretion disk to be cos i > 0.66 at 68% confidence. Very edge on (cos i < 0.39) solutions are ruled out at 95% confidence. We measure the V-band radius of the accretion disk, defined by the radius where the temperature matches the monitoring band photon emission, to be R_V = 5.8 (+3.8) (-2.3) x 10^15 cm assuming a simple thin disk model and including the uncertainties in its inclination. The projected radiating area of the disk remains too large to be consistent with the observed flux for a T proportional to R^-3/4 thin disk temperature profile. There is no strong correlation between the direction of motion (peculiar velocity) of the lens galaxy and the orientation of the disk.
description: 7 pages, 6 figures; animated magnification pattern video can be found at http://www.astronomy.ohio-state.edu/~sdp/animation.avi; accepted for publication in ApJ
$J/ψ$ production in pp collisions at $\sqrt{\rm s}$=200GeV in the STAR experiment
Creators: name: Cosentino, Mauro R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In this work we present the $J/ψ$ measurement in p+p collisions within the STAR collaboration Quarkonium program. This measurements aim to be the baseline measurement of a more comprehensive systematic study of quarkonium states production in order to understand their in medium modification. Here we report the total cross section and $p_T$ distribution, and find them to be consistent with pQCD CEM predictions as well as to previous measurements at the same center-of-mass energy.
description: Proceedings of the 20th International Conference on Ultra-Relativistic Nucleus Nucleus Collisions (QM08), 6 pages, 2 figures
Exploration Techniques in Active Learning in Classification
Creators: name: Kuchling, Peter
Publisher: name: IEEE
Year: 2024

description: This a secondary publication of an original article published by IEEE https://doi.org/10.1109/IJCNN60899.2024.10649980

Active Learning is the process of selectively querying unlabelled data to be classified by an expert for efficient supervised learning on small data to, among other things, reduce labelling costs. While many works are concerned with the notion of uncertainty quantification as a measure to query informative data points, less work has been dedicated to the preceding exploration phase. In this article, we introduce techniques which can be used to explore the unlabelled data before switching to an exploitation algorithm such as query by uncertainty. Besides benchmarking various algorithms, a novel "fake class"-technique is introduced, which is specialized on discovering new classes within the unlabelled dataset, but also generally improves the performance of the algorithms.
University of Padua - CoARA Action Plan 2024-2027
Creators: name: University of Padua
Publisher: name: Zenodo
Year: 2024
Subjects: CoARA
CoARA Action Plan
research assessment

description: The University of Padua signed the Agreement on Reforming Research Assessment (ARRA) on 17 November 2022. This document outlines the University’s Action Plan for the implementation of the agreement’s principles and commitments.
Characterizing interdisciplinarity in drug research: a translational science perspective
Creators: name: Li, Xin
name: Tang, Xuli
Publisher: name: arXiv
Year: 2021
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Despite the significant advances in life science, it still takes decades to translate a basic drug discovery into a cure for human disease. To accelerate the process from bench to bedside, interdisciplinary research (especially research involving both basic research and clinical research) has been strongly recommend by many previous studies. However, the patterns and the roles of the interdisciplinary characteristics in drug research have not been deeply examined in extant studies. The purpose of this study was to characterize interdisciplinary characteristics in drug research from the perspective of translational science, and to examine the role of different kinds of interdisciplinary characteristics in translational research for drugs.
Fast construction of the Kohn--Sham response function for molecules
Creators: name: Koval, Peter
name: Foerster, Dietrich
name: Coulaud, Olivier
Publisher: name: arXiv
Year: 2009
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The use of the LCAO (Linear Combination of Atomic Orbitals) method for excited states involves products of orbitals that are known to be linearly dependent. We identify a basis in the space of orbital products that is local for orbitals of finite support and with a residual error that vanishes exponentially with its dimension. As an application of our previously reported technique we compute the Kohn--Sham density response function $χ_{0}$ for a molecule consisting of $N$ atoms in $N^{2}N_ω$ operations, with $N_ω$ the number of frequency points. We test our construction of $χ_{0}$ by computing molecular spectra directly from the equations of Petersilka--Gossmann--Gross in $N^{2}N_ω$ operations rather than from Casida's equations which takes $N^{3}$ operations. We consider the good agreement with previously calculated molecular spectra as a validation of our construction of $χ_{0}$. Ongoing work indicates that our method is well suited for the computation of the GW self-energy $Σ=\mathrm{i}GW$ and we expect it to be useful in the analysis of exitonic effects in molecules.
Radiation Pressure Acceleration by Ultraintense Laser Pulses
Creators: name: Liseykina, Tatiana
name: Borghesi, Marco
name: Macchi, Andrea
name: Tuveri, Sara
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The future applications of the short-duration, multi-MeV ion beams produced in the interaction of high-intensity laser pulses with solid targets will require improvements in the conversion efficiency, peak ion energy, beam monochromaticity, and collimation. Regimes based on Radiation Pressure Acceleration (RPA) might be the dominant ones at ultrahigh intensities and be most suitable for specific applications. This regime may be reached already with present-day intensities using circularly polarized (CP) pulses thanks to the suppression of fast electron generation, so that RPA dominates over sheath acceleration at any intensity. We present a brief review of previous work on RPA with CP pulses and a few recent results. Parametric studies in one dimension were performed to identify the optimal thickness of foil targets for RPA and to study the effect of a short-scalelength preplasma. Three-dimensional simulations showed the importance of ``flat-top'' radial intensity profiles to minimise the rarefaction of thin targets and to address the issue of angular momentum conservation and absorption.
description: 11 pages, 8 figures, accepted for publication to the special issue "EPS 2008" of PPCF
The significance of electrostatic properties in the interiors of low-mass stars
Creators: name: Brito, Ana
Publisher: name: Zenodo
Year: 2024

description: In the partially ionized material of stellar interiors, the strongest forces acting on electrons and ions are the Coulomb interactions between charges. The dynamics of the plasma as a whole depend on the magnitudes of the average electrostatic interactions and the average kinetic energies of the particles that constitute the stellar material. An important question is how these interactions of real gases are related to the observable stellar properties. Specifically, the relationships between rotation, magnetic activity, and the thermodynamic properties of stellar interiors are still not well understood. These connections are crucial for understanding and interpreting the abundant observational data provided by space-based missions such as Kepler/K2, TESS, and the future data from the PLATO mission.

In this study, we investigate the electrostatic effects within the interiors of low-mass main-sequence stars. Specifically, we introduce a global quantity, a global plasma parameter, that allows us to compare the importance of electrostatic interactions across a range of low-mass theoretical models (0.7-1.4 M⊙) with varying ages and metallicities. We then correlate the electrostatic properties of the theoretical models with the observable rotational trends on the main sequence.
Megastylus cruentator SCHIODTE 1838
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Megastylus
Megastylus cruentator

description: Megastylus cruentator SCHIØDTE, 1838
M a t e r i a l e x a m i n e d: Trap 2: 1♀ 20.v.-1.vi., 1♀ 1-15.vi., 1♁ 27.vii.-10.viii., 1♀ 21.ix.- 5.x.; trap 4: 1♁ 20.iv.-5.v.; trap 8: 1♀ 1♁ 15-29.vi., 1♀ 5-19.x.; trap 12: 1♀ 5-20.vi., 1♀ 1-15.vi.; trap 15: 1♀ 30.vi.-14.vii.
D i s t r i b u t i o n: Transpalaearctic, known from Georgia (HUMALA 2003, RIEDEL & JAPOSHVILI 2021).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 116, DOI: 10.5281/zenodo.10415120
Nonlinear axion electrodynamics: Axionically induced electric flares in the early magnetized universe
Creators: name: Balakin, Alexander B.
name: Bochkarev, Vladimir V.
name: Nizamieva, Albina F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the nonlinearly extended Einstein-Maxwell-axion theory, which is based on the account for two symmetries: first, the discrete symmetry associated with the properties of the axion field, second, the Jackson's symmetry, prescribing to the electrodynamics to be invariant with respect to the rotation in the plane coordinated by the electric and magnetic fields. We derive the master equations of the nonlinearly extended theory, and apply them to the Bianchi-I model with magnetic field. The main result, describing the behavior of the nonlinearly coupled axion, electromagnetic and gravitational fields is the anomalous growth of the axionically induced electric field in the early magnetized Universe. The character of behavior of this anomalous electric field can be indicated by the term flare. We expect, that these electric flares can produce the electron-positron pair creation, significant acceleration of the born charged particles, and emission of the electromagnetic waves by these accelerated particles.
description: 14 pages, 10 figures
Spent Foundry Sand Valorisation in Construction Sector Through the Validation of High-Performance Applications (LIFE ECO-SANDFILL) . Layman's Report
Creators: name: Garitaonandia, Erika
name: Delgado, Clara
Publisher: name: Zenodo
Year: 2021
Subjects: foundry sand
sand reclamation
secondary aggregates
construction products

description: The Layman’s report provides a brief summary of the LIFE ECO-SANDFILL project's objectives and results. This is targeted at a nonspecialist audience and serves to inform decisionmakers. Demonstration actions executed in foundry and construction applications in the Basque Country (ES), using reclaimed sand as secondary fine aggregates and moulding sand are described. The environmental gains obtained by valorisation of 620 t of spent foundry sand, otherwise disposed of in landfills, are discussed.
description: LIFE ECO-SANDFILL is co-financed by LIFE Programme, the financial instrument for the Environment and Climate Action of the European Union. Project No.: LIFE15 ENV/ES/000612 www.life-ecosandfill.eu
Anomaly Search with Multiple Plays under Delay and Switching Costs
Creators: name: Lambez, Tidhar
name: Cohen, Kobi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The problem of searching for $L$ anomalous processes among $M$ processes is considered. At each time, the decision maker can observe a subset of $K$ processes (i.e., multiple plays). The measurement drawn when observing a process follows one of two different distributions, depending on whether the process is normal or abnormal. The goal is to design a policy that minimizes the Bayes risk which balances between the sample complexity, detection errors, and the switching cost associated with switching across processes. We develop a policy, dubbed consecutive controlled sensing (CCS), to achieve this goal. On the one hand, by contrast to existing studies on controlled sensing, the CCS policy senses processes consecutively to reduce the switching cost. On the other hand, the policy controls the sensing operation in a closed-loop manner to switch between processes when necessary to guarantee reliable inference. We prove theoretically that CCS is asymptotically optimal in terms of minimizing the Bayes risk as the detection error approaches zero (i.e., the sample complexity increases). Simulation results demonstrate strong performance of CCS in the finite regime as well.
description: 30 pages, 7 figures (14 images)
Singular Q-homology planes of negative Kodaira dimension have smooth locus of non-general type
Creators: name: Palka, Karol
name: Koras, Mariusz
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 14R05, 14J17, 14J26

description: We continue the program of classification of normal Q-acyclic surfaces defined over the field of complex numbers, so-called 'Q-homology planes'. Here we show that if a Q-homology plane has negative Kodaira dimension then its smooth locus is not of general type. This generalizes an earlier result of Koras-Russell for contractible surfaces.
description: 46 pages, 1 figure
Survival benefits in mimicry: a quantitative framework
Creators: name: Mikaberidze, Alexey
name: Haque, Masudul
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Mimicry is a resemblance between species that benefits at least one of the species. It is a ubiquitous evolutionary phenomenon particularly common among prey species, in which case the advantage involves better protection from predation. We formulate a mathematical description of mimicry among prey species, to investigate benefits and disadvantages of mimicry. The basic setup involves differential equations for quantities representing predator behavior, namely, the probabilities for attacking prey at the next encounter. Using this framework, we present new quantitative results, and also provide a unified description of a significant fraction of the quantitative mimicry literature. The new results include `temporary' mutualism between prey species, and an optimal density at which the survival benefit is greatest for the mimic. The formalism leads naturally to extensions in several directions, such as the evolution of mimicry, the interplay of mimicry with population dynamics, etc. We demonstrate this extensibility by presenting some explorations on spatiotemporal pattern dynamics.
description: 9 pages, 7 figures
Extending polynomials in maximal and minimal ideals
Creators: name: Carando, Daniel
name: Galicer, Daniel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46G25, 46A32, 46B28, 47H60

description: Given an homogeneous polynomial on a Banach space $E$ belonging to some maximal or minimal polynomial ideal, we consider its iterated extension to an ultrapower of $E$ and prove that this extension remains in the ideal and has the same ideal norm. As a consequence, we show that the Aron-Berner extension is a well defined isometry for any maximal or minimal ideal of homogeneous polynomials. This allow us to obtain symmetric versions of some basic results of the metric theory of tensor products.
description: 13 pages
POSSCORE: A Simple Yet Effective Evaluation of Conversational Search with Part of Speech Labelling
Creators: name: Liu, Zeyang
name: Zhou, Ke
name: Mao, Jiaxin
name: Wilson, Max L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Conversational search systems, such as Google Assistant and Microsoft Cortana, provide a new search paradigm where users are allowed, via natural language dialogues, to communicate with search systems. Evaluating such systems is very challenging since search results are presented in the format of natural language sentences. Given the unlimited number of possible responses, collecting relevance assessments for all the possible responses is infeasible. In this paper, we propose POSSCORE, a simple yet effective automatic evaluation method for conversational search. The proposed embedding-based metric takes the influence of part of speech (POS) of the terms in the response into account. To the best knowledge, our work is the first to systematically demonstrate the importance of incorporating syntactic information, such as POS labels, for conversational search evaluation. Experimental results demonstrate that our metrics can correlate with human preference, achieving significant improvements over state-of-the-art baseline metrics.
description: 11 pages
Is post-editing really faster than human translation?
Creators: name: Terribile, Silvia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Time efficiency is paramount for the localisation industry, which demands ever-faster turnaround times. However, translation speed is largely underresearched, and there is a lack of clarity about how language service providers (LSPs) can evaluate the performance of their post-editing (PE) and human translation (HT) services. This study constitutes the first large-scale investigation of translation and revision speed in HT and in the PE of neural machine translation, based on real-world data from an LSP. It uses an exploratory data analysis approach to investigate data for 90 million words translated by 879 linguists across 11 language pairs, over 2.5 years. The results of this research indicate that (a) PE is usually but not always faster than HT; (b) average speed values may be misleading; (c) translation speed is highly variable; and (d) edit distance cannot be used as a proxy for post-editing productivity, because it does not correlate strongly with speed.
description: 30 pages, 11 tables, 7 figures. This article has been published in Translation Spaces. This is the author accepted manuscript. Please find the published version at: https://doi.org/10.1075/ts.22044.ter
Reconfigurable co-processor architecture with limited numerical precision to accelerate deep convolutional neural networks
Creators: name: Wijeratne, Sasindu
name: Jayaweera, Sandaruwan
name: Dananjaya, Mahesh
name: Pasqual, Ajith
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Hardware Architecture (cs.AR)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Convolutional Neural Networks (CNNs) are widely used in deep learning applications, e.g. visual systems, robotics etc. However, existing software solutions are not efficient. Therefore, many hardware accelerators have been proposed optimizing performance, power and resource utilization of the implementation. Amongst existing solutions, Field Programmable Gate Array (FPGA) based architecture provides better cost-energy-performance trade-offs as well as scalability and minimizing development time. In this paper, we present a model-independent reconfigurable co-processing architecture to accelerate CNNs. Our architecture consists of parallel Multiply and Accumulate (MAC) units with caching techniques and interconnection networks to exploit maximum data parallelism. In contrast to existing solutions, we introduce limited precision 32 bit Q-format fixed point quantization for arithmetic representations and operations. As a result, our architecture achieved significant reduction in resource utilization with competitive accuracy. Furthermore, we developed an assembly-type microinstructions to access the co-processing fabric to manage layer-wise parallelism, thereby making re-use of limited resources. Finally, we have tested our architecture up to 9x9 kernel size on Xilinx Virtex 7 FPGA, achieving a throughput of up to 226.2 GOp/S for 3x3 kernel size.
Warped Convolutions: A Novel Tool in the Construction of Quantum Field Theories
Creators: name: Buchholz, Detlev
name: Summers, Stephen J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Recently, Grosse and Lechner introduced a novel deformation procedure for non-interacting quantum field theories, giving rise to interesting examples of wedge-localized quantum fields with a non-trivial scattering matrix. In the present article we outline an extension of this procedure to the general framework of quantum field theory by introducing the concept of warped convolutions: given a theory, this construction provides wedge-localized operators which commute at spacelike distances, transform covariantly under the underlying representation of the Poincare group and admit a scattering theory. The corresponding scattering matrix is nontrivial but breaks the Lorentz symmetry, in spite of the covariance and wedge-locality properties of the deformed operators.
description: 13 pages, 1 figure, talk given by DB at Ringberg Symposium in honor of W. Zimmermann, February 2008
Self-gravitating system made of axions
Creators: name: Barranco, J.
name: Bernal, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the inclusion of an axion-like effective potential in the construction of a self-gravitating system made of scalar fields leads to a decrease on its compactness when the value of the self-interaction coupling constant is increased. By including the current values for the axion mass m and decay constant f_a, we have computed the mass and the radius for self-gravitating systems made of axion particles. It is found that such objects will have asteroid-size masses and radius of few meters, then, the self-gravitating system made of axions could play the role of scalar mini-machos that are mimicking a cold dark matter model for the galactic halo.
description: 5 pages, 3 figures. References added. Accepted for publication in Physical Review D
Temporal complex networks modeling applied to vehicular ad-hoc networks
Creators: name: Santos, Fillipe
name: Aquino, Andre L. L.
name: Madeira, Edmundo R. M.
name: Cabral, Raquel S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: VANETs solutions use aggregated graph representation to model the interaction among the vehicles and different aggregated complex network measures to quantify some topological characteristics. This modeling ignores the temporal interactions between the cars, causing loss of information or unrealistic behavior. This work proposes the use of both temporal graphs and temporal measures to model VANETs applications. To verify the viability of this model, we initially perform a comparative analysis between the temporal and aggregated modeling considering five different real datasets. This analysis shows that the aggregated model is inefficient in modeling the temporal aspects of networks. After that, we perform a network evaluation through a simulation by considering the impact of temporal modeling applied to the deployment of RSUs. First, we compare a solution based on our temporal modeling with a greedy algorithm based on an aggregated model to choose the positions of RSUs. In a scenario with 70 RSUs, we have 77% and 65% of coverage in the temporal and aggregated model (greedy algorithm), respectively. Second, we evaluate the use of aggregated and temporal measures applied as features in a genetic algorithm. The approach with temporal betweenness had the better result with 90% of the coverage area against 61% of aggregated one applied to the same scenario.
VLA observations of the "water fountain" IRAS 16552-3050
Creators: name: Suárez, Olga
name: Gómez, J. F.
name: Miranda, L. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Very Large Array (VLA) observations of the water maser emission towards IRAS 16552-3050. The maser emission shows a velocity spread of ~170 km/s, and a bipolar distribution with a separation between the red and blueshifted groups of ~0.08". These observations and the likely post-AGB nature of the source indicate that IRAS 16552-3050 can be considered as a member of the "water fountain" class of sources (evolved stars showing H2O maser emission with a velocity spread $\ga$ 100 km/s, probably tracing collimated jets). The water maser emission in IRAS 16552-3050 does not seem to be associated with with any known optical counterpart. Moreover, this source does not have a near-IR 2MASS counterpart, as it happens in about half of the water fountains known. This suggests that these sources tend to be heavily obscured objects, probably with massive precursors ($\ga 4-5$ M$_\odot$). We suggest that the water maser emission in IRAS 16552-3050 could be tracing a rapidly precessing bipolar jet.
description: 15 pages, 4 figures. Accepted by ApJ
Complete asymptotic expansions for eigenvalues of Dirichlet Laplacian in thin three-dimensional rods
Creators: name: Borisov, D.
name: Cardone, G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 35P05, 35J05, 35B25, 35C20

description: We consider Dirichlet Laplacian in a thin curved three-dimensional rod. The rod is finite. Its cross-section is constant and small, and rotates along the reference curve in an arbitrary way. We find a two-parametric set of the eigenvalues of such operator and construct their complete asymptotic expansions. We show that this two-parametric set contains any prescribed number of the first eigenvalues of the considered operator. We obtain the complete asymptotic expansions for the eigenfunctions associated with these first eigenvalues.
Slow relaxation, dynamic transitions and extreme value statistics in disordered systems
Creators: name: Van Duijvendijk, Kristina
name: Schehr, Grégory
name: Van Wijland, Frédéric
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We show that the dynamics of simple disordered models, like the directed Trap Model and the Random Energy Model, takes place at a coexistence point between active and inactive dynamical phases. We relate the presence of a dynamic phase transition in these models to the extreme value statistics of the associated random energy landscape.
Piecewise linear Markov decision processes with an application to partially observable Markov models
Creators: name: Sawaki, Katsushige
Publisher: name: University of British Columbia
Year: 2010

description: This dissertation applies policy improvement and successive approximation or value iteration to a general class of Markov decision processes with discounted costs. In particular, a class of Markov decision processes, called piecewise-linear, is studied. Piecewise-linear processes are characterized by the property that the value function of a process observed for one period and then terminated is piecewise-linear if the terminal reward function is piecewise-linear. Partially observable Markov decision processes have this property. It is shown that there are e-optimal piecewise-linear value functions and piecewise-constant policies which are simple. Simple means that there are only finitely many pieces, each of which is defined on a convex polyhedral set. Algorithms based on policy improvement and successive approximation are developed to compute simple approximations to an optimal policy and the optimal value function.
Megastylus flavopictus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Megastylus
Megastylus flavopictus

description: Megastylus flavopictus (GRAVENHORST, 1829)
M a t e r i a l e x a m i n e d: Trap 2: 1♀ 5-20.v.; trap 8: 1♀ 15-29.vi.
D i s t r i b u t i o n: Holarctic, known from Georgia (HUMALA 2003, RIEDEL & JAPOSHVILI 2021).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on pages 116-117, DOI: 10.5281/zenodo.10415120
Detecting Requirements Smells With Deep Learning: Experiences, Challenges and Future Work
Creators: name: Habib, Mohammad Kasra
name: Wagner, Stefan
name: Graziotin, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Requirements Engineering (RE) is the initial step towards building a software system. The success or failure of a software project is firmly tied to this phase, based on communication among stakeholders using natural language. The problem with natural language is that it can easily lead to different understandings if it is not expressed precisely by the stakeholders involved, which results in building a product different from the expected one. Previous work proposed to enhance the quality of the software requirements detecting language errors based on ISO 29148 requirements language criteria. The existing solutions apply classical Natural Language Processing (NLP) to detect them. NLP has some limitations, such as domain dependability which results in poor generalization capability. Therefore, this work aims to improve the previous work by creating a manually labeled dataset and using ensemble learning, Deep Learning (DL), and techniques such as word embeddings and transfer learning to overcome the generalization problem that is tied with classical NLP and improve precision and recall metrics using a manually labeled dataset. The current findings show that the dataset is unbalanced and which class examples should be added more. It is tempting to train algorithms even if the dataset is not considerably representative. Whence, the results show that models are overfitting; in Machine Learning this issue is solved by adding more instances to the dataset, improving label quality, removing noise, and reducing the learning algorithms complexity, which is planned for this research.
description: 4 pages, 2 figures. Accepted at Eigth International Workshop on Artificial Intelligence and Requirements Engineering (AIRE'21)
Towards Intelligent Traffic Solution: A Literature Review on Traffic Management Using 5G Networks.pdf
Creators: name: Mole, Patrick
Publisher: name: figshare
Year: 2020
Subjects: subject: 100510 Wireless Communications
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Abstract:
Traffic congestion has become a critical concern among cities nowadays due to urbanization. Thus, intelligent traffic management solutions are required to cope with several issues and challenges. An intelligent traffic system can be valuable when shared with services utilizing the 5G network. This paper presents a literature review study on the 5G network and its capabilities to enhance urban traffic management. The literature review demonstrates the lapses in different traffic optimization and simulation tools and argues that the 5G network might be a step towards the issues in attaining high-efficient traffic management. Furthermore, the key technologies of the 5G network and its distinctive features have been analyzed in this paper and scrutinize the current possibilities.
Cross-lingual Capsule Network for Hate Speech Detection in Social Media
Creators: name: Jiang, Aiqi
name: Zubiaga, Arkaitz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Most hate speech detection research focuses on a single language, generally English, which limits their generalisability to other languages. In this paper we investigate the cross-lingual hate speech detection task, tackling the problem by adapting the hate speech resources from one language to another. We propose a cross-lingual capsule network learning model coupled with extra domain-specific lexical semantics for hate speech (CCNL-Ex). Our model achieves state-of-the-art performance on benchmark datasets from AMI@Evalita2018 and AMI@Ibereval2018 involving three languages: English, Spanish and Italian, outperforming state-of-the-art baselines on all six language pairs.
description: 7 pages, 1 figure, 4 tables
Cauchy Problem and Green's Functions for First Order Differential Operators and Algebraic Quantization
Creators: name: Muehlhoff, Rainer
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81T20, 83C47

description: Existence and uniqueness of advanced and retarded fundamental solutions (Green's functions) and of global solutions to the Cauchy problem is proved for a general class of first order linear differential operators on vector bundles over globally hyperbolic Lorentzian manifolds. This is a core ingredient to CAR-/CCR-algebraic constructions of quantum field theories on curved spacetimes, particularly for higher spin field equations.
description: revised version: typos; reordering of sec 2; results unchanged
Diagonal degree correlations vs. epidemic threshold in scale-free networks
Creators: name: Bertotti, M. L.
name: Modanese, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We prove that the presence of a diagonal assortative degree correlation, even if small, has the effect of dramatically lowering the epidemic threshold of large scale-free networks. The correlation matrix considered is $P(h|k)=(1-r)P^U_{hk}+rδ_{hk}$, where $P^U$ is uncorrelated and $r$ (the Newman assortativity coefficient) can be very small. The effect is uniform in the scale exponent $γ$, if the network size is measured by the largest degree $n$. We also prove that it is possible to construct, via the Porto-Weber method, correlation matrices which have the same $k_{nn}$ as the $P(h|k)$ above, but very different elements and spectrum, and thus lead to different epidemic diffusion and threshold. Moreover, we study a subset of the admissible transformations of the form $P(h|k) \to P(h|k)+Φ(h,k)$ with $Φ(h,k)$ depending on a parameter which leave $k_{nn}$ invariant. Such transformations affect in general the epidemic threshold. We find however that this does not happen when they act between networks with constant $k_{nn}$, i.e. networks in which the average neighbor degree is independent from the degree itself (a wider class than that of strictly uncorrelated networks).
description: 18 pages, 6 figures