cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generalized Typed Attributed Graph Transformation Systems based on Morphisms Changing Type Graphs and Data Signature
Creators: name: Ehrig, Hartmut
name: Ehrig, Karsten
name: Ermel, Claudia
name: Prange, Ulrike
Publisher: name: Technische Universität Berlin
Year: 2009
Subjects: subject: 004 Datenverarbeitung; Informatik
subject: graph transformation
subject: graph morphisms

description: Our aim is to extend the framework of typed attributed graphs in [1] to generalized typed attributed graphs. They are based on generalized attributed graph morphisms, short GAG-morphisms, which allow to change the type graph, data signature, and domain. This allows to formulate type hierarchies and views of visual languages defined by GAG-morphisms between type graphs, short GATG-morphisms. In order to study interaction and integration of views, restriction of views along type hierarchies, restriction and integration of consistent view models and reflection of behaviour between different typed attributed graph transformation systems we present suitable conditions for the construction of pushouts and pullbacks, and special van Kampen properties in the category GAGraphs of generalized attributed graphs. Moreover, we show that (GAGraphs,M) and (GAGraphsATG,M) are adhesive HLR categories for the class M of injective, persistent, and signature preserving morphisms.
Online Learning for Mixture of Multivariate Hawkes Processes
Creators: name: Ghassemi, Mohsen
name: Dalmasso, Niccolò
name: Lamba, Simran
name: Potluru, Vamsi K.
name: Shah, Sameena
name: Balch, Tucker
name: Veloso, Manuela
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Online learning of Hawkes processes has received increasing attention in the last couple of years especially for modeling a network of actors. However, these works typically either model the rich interaction between the events or the latent cluster of the actors or the network structure between the actors. We propose to model the latent structure of the network of actors as well as their rich interaction across events for real-world settings of medical and financial applications. Experimental results on both synthetic and real-world data showcase the efficacy of our approach.
description: 12 pages, 6 figures, 3 tables
Novel Graph Processor Architecture, Prototype System, and Results
Creators: name: Song, William S.
name: Gleyzer, Vitaliy
name: Lomakin, Alexei
name: Kepner, Jeremy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Graph algorithms are increasingly used in applications that exploit large databases. However, conventional processor architectures are inadequate for handling the throughput and memory requirements of graph computation. Lincoln Laboratory's graph-processor architecture represents a rethinking of parallel architectures for graph problems. Our processor utilizes innovations that include a sparse matrix-based graph instruction set, a cacheless memory system, accelerator-based architecture, a systolic sorter, high-bandwidth multi-dimensional toroidal communication network, and randomized communications. A field-programmable gate array (FPGA) prototype of the new graph processor has been developed with significant performance enhancement over conventional processors in graph computational throughput.
description: 7 pages, 8 figures, IEEE HPEC 2016
Chabonniere, Jacques
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Turin
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
The influence of local and central management on national and denominational board schoolteachers in Ballarat and Buninyong, 1848-1862
Creators: name: Moore, R. Keith
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the Reference field.
Fornachon, Antoine
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Neuchâtel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Gisinger, Anton
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Feldkirch
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Falconnet & Co
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Neapel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Elliptic curves in isogeny classes
Creators: name: Shparlinski, Igor E.
name: Zhao, Liangyi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We show that the distribution of elliptic curves in isogeny classes of curves with a given value of the Frobenius trace $t$ becomes close to uniform even when $t$ is averaged over very short intervals inside the Hasse-Weil interval.
Friedrich, Daniel
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: New Orleans
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Fairness through Aleatoric Uncertainty
Creators: name: Tahir, Anique
name: Cheng, Lu
name: Liu, Huan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: We propose a simple yet effective solution to tackle the often-competing goals of fairness and utility in classification tasks. While fairness ensures that the model's predictions are unbiased and do not discriminate against any particular group or individual, utility focuses on maximizing the model's predictive performance. This work introduces the idea of leveraging aleatoric uncertainty (e.g., data ambiguity) to improve the fairness-utility trade-off. Our central hypothesis is that aleatoric uncertainty is a key factor for algorithmic fairness and samples with low aleatoric uncertainty are modeled more accurately and fairly than those with high aleatoric uncertainty. We then propose a principled model to improve fairness when aleatoric uncertainty is high and improve utility elsewhere. Our approach first intervenes in the data distribution to better decouple aleatoric uncertainty and epistemic uncertainty. It then introduces a fairness-utility bi-objective loss defined based on the estimated aleatoric uncertainty. Our approach is theoretically guaranteed to improve the fairness-utility trade-off. Experimental results on both tabular and image datasets show that the proposed approach outperforms state-of-the-art methods w.r.t. the fairness-utility trade-off and w.r.t. both group and individual fairness metrics. This work presents a fresh perspective on the trade-off between utility and algorithmic fairness and opens a key avenue for the potential of using prediction uncertainty in fair machine learning.
BREASTFEEDING - MAKING A DIFFERENCE: PREDICTORS, WOMEN’’S VIEWS, AND RESULTS FROM A RANDOMISED CONTROLLED TRIAL
Creators: name: Forster, Della
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 420499
subject: Midwifery not elsewhere classified

description: Submitted in total fulfilment of the requirements of the degree of Doctor of Philosophy to the School of Public Helath, Faculty of Health Sciences, La Trobe University, Victoria, Australia.
Evaluating spintronics-compatible implementations of Ising machines
Creators: name: Grimaldi, Andrea
name: Mazza, Luciano
name: Raimondo, Eleonora
name: Tullo, Pietro
name: Rodrigues, Davi
name: Camsari, Kerem Y.
name: Crupi, Vincenza
name: Carpentieri, Mario
name: Puliafito, Vito
name: Finocchio, Giovanni
Publisher: name: arXiv
Year: 2023
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The commercial and industrial demand for the solution of hard combinatorial optimization problems push forward the development of efficient solvers. One of them is the Ising machine which can solve combinatorial problems mapped to Ising Hamiltonians. In particular, spintronic hardware implementations of Ising machines can be very efficient in terms of area and performance, and are relatively low-cost considering the potential to create hybrid CMOS-spintronic technology. Here, we perform a comparison of coherent and probabilistic paradigms of Ising machines on several hard Max-Cut instances, analyzing their scalability and performance at software level. We show that probabilistic Ising machines outperform coherent Ising machines in terms of the number of iterations required to achieve the problem s solution. Nevertheless, high frequency spintronic oscillators with sub-nanosecond synchronization times could be very promising as ultrafast Ising machines. In addition, considering that a coherent Ising machine acts better for Max-Cut problems because of the absence of the linear term in the Ising Hamiltonian, we introduce a procedure to encode Max-3SAT to Max-Cut. We foresee potential synergic interplays between the two paradigms.
description: 26 pages, 6 Figures, submitted for publication in Phys. Rev. Applied (it will be presented at intermag 2023 in Japan)
LeafAI: query generator for clinical cohort discovery rivaling a human programmer
Creators: name: Dobbins, Nicholas J
name: Han, Bin
name: Zhou, Weipeng
name: Lan, Kristine
name: Kim, H. Nina
name: Harrington, Robert
name: Uzuner, Ozlem
name: Yetisgen, Meliha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Objective: Identifying study-eligible patients within clinical databases is a critical step in clinical research. However, accurate query design typically requires extensive technical and biomedical expertise. We sought to create a system capable of generating data model-agnostic queries while also providing novel logical reasoning capabilities for complex clinical trial eligibility criteria. Materials and Methods: The task of query creation from eligibility criteria requires solving several text-processing problems, including named entity recognition and relation extraction, sequence-to-sequence transformation, normalization, and reasoning. We incorporated hybrid deep learning and rule-based modules for these, as well as a knowledge base of the Unified Medical Language System (UMLS) and linked ontologies. To enable data-model agnostic query creation, we introduce a novel method for tagging database schema elements using UMLS concepts. To evaluate our system, called LeafAI, we compared the capability of LeafAI to a human database programmer to identify patients who had been enrolled in 8 clinical trials conducted at our institution. We measured performance by the number of actual enrolled patients matched by generated queries. Results: LeafAI matched a mean 43% of enrolled patients with 27,225 eligible across 8 clinical trials, compared to 27% matched and 14,587 eligible in queries by a human database programmer. The human programmer spent 26 total hours crafting queries compared to several minutes by LeafAI. Conclusions: Our work contributes a state-of-the-art data model-agnostic query generation system capable of conditional reasoning using a knowledge base. We demonstrate that LeafAI can rival an experienced human programmer in finding patients eligible for clinical trials.
Preservice teachers' views of similarities and differences in teaching and learning literacy and numeracy
Creators: name: Scott, Anne L
Publisher: name: La Trobe
Year: 2023

description: This is a report of an investigation of aspects of preservice teachers' perceptions of teaching and learning English and mathematics and factors influencing them. The participants of the investigation were primary preservice teachers from two tertiary institutions of Victoria, one located inner city, and the other in a regional centre. Of the 349 participants, 163 were commencing and 186 were graduating from their degrees. Preservice teachers completed questionnaires indicating their intentions to use particular practices in their literacy and numeracy lessons. Thirty-one of the 349 surveyed voluntarily discussed key issues arising from the survey during semi-structured audiotaped sessions. Five lecturers responsible for the planning of the compulsory English and mathematics education units at both institutions were interviewed about the survey data and provided written documentation for their units as evidence of their coursework. Data analyses indicated that preservice teachers often considered practices equally appropriate for literacy and numeracy teaching and intended to use them in similar ways. It seemed that preservice teachers enter their degrees with strong opinions about teaching and learning based not only on their recollections of experiences as learners but also from more recent relevant experiences such as their dealings with children as babysitters, tutors, and classroom helpers. They also gained knowledge about teaching contexts from their informal but regular conversations with friends and family who teach. From the examination of the documentation for coursework and discussions with lecturers, it seemed that the content of the literacy and numeracy education units at the two institutions were similar. Overall, the data indicated that many of the preservice teachers' intentions were consistent with the intent of coursework especially when they described general teaching practices. However, in cases where practices were discipline-specific there were limited changes in preservice teachers' intentions even after completing their courses. The prospective teachers reported that they considered their recent salient experiences of teaching and their observations of teachers' practices in schools more influential than coursework.
Close, James & Co
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Neapel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
The gifted and talented second language learner
Creators: name: Monheit, Dorit
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the Reference field.
Efficient generation of spin currents by the Orbital Hall effect in pure Cu and Al and their measurement by a Ferris-wheel ferromagnetic resonance technique at the wafer level
Creators: name: Rothschild, Amit
name: Am-Shalom, Nadav
name: Bernstein, Nirel
name: Meron, Mayan
name: David, Tal
name: Assouline, Benjamin
name: Frohlich, Elichai
name: Xiao, Jiewen
name: Yan, Binghai
name: Capua, Amir
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a new ferromagnetic resonance (FMR) method that we term the Ferris FMR. It is wideband, has significantly higher sensitivity as compared to conventional FMR systems, and measures the absorption line rather than its derivative. It is based on large-amplitude modulation of the externally applied magnetic field that effectively magnifies signatures of the spin-transfer torque making its measurement possible even at the wafer-level. Using the Ferris FMR, we report on the generation of spin currents from the orbital Hall effect taking place in pure Cu and Al. To this end, we use the spin-orbit coupling of a thin Pt layer introduced at the interface that converts the orbital current to a measurable spin current. While Cu reveals a large effective spin Hall angle exceeding that of Pt, Al possesses an orbital Hall effect of opposite polarity in agreement with the theoretical predictions. Our results demonstrate additional spin- and orbit- functionality for two important metals in the semiconductor industry beyond their primary use as interconnects with all the advantages in power, scaling, and cost.
Hunting the stochastic gravitational wave background in pulsar timing array cross correlations through theoretical uncertainty
Creators: name: Bernardo, Reginald Christian
name: Ng, Kin-Wang
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Incredible progress on the theoretical uncertainty of the spatial correlations of the stochastic gravitational wave (GW) background were recently made. However, it remains to realize the impact of this theoretical uncertainty on PTA cross correlations analysis. This paper pushes forward in this direction, as a proof--of--principle: showing the potential role that theoretical uncertainty has on unburying the stochastic GW background signal in noisy PTA cross correlation measurements. We consider both a mock data set and the noise--marginalized 12.5 years NANOGrav spatial correlation measurements, and find optimistic conclusions regardless of the physical content of the GW background and the nature of the noise in the data. Very briefly, we show through various cases a modest result that looking out for a stochastic signal is better when two of its moments are utilized. Or, in terms of GWs, we show that the theoretical uncertainty can play a substantial role in the hunt for the stochastic GW background.
description: 12 pages + refs, 3 figures, v3: discussion improved, PTA GW milestone now in the intro timeline, to appear in JCAP, our codes https://github.com/reggiebernardo/PTAfast/tree/main/app2_cosmic_variance
Modelling thermoresponsive polymer brush by mesoscale computer simulations
Creators: name: Yaremchuk, D.
name: Kalyuzhnyi, O.
name: Ilnytskyi, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider a functional surface comprising thermoresponsive polymer chains, the material that has found numerous technological and biomedical applications. However, to achieve the required time and length scales for computer modelling of such applications, one is compelled to use coarse-grained mesoscopic modelling approaches. The model used here is based on the previous work [Soto-Figueroa et al., Soft Matter, 8, 1871 (2012)], and it mimics the principal feature of the poly(N-iso-propylacrylamide) (PNIPAM), namely, the rapid change of its hydrophilicity at the lower critical solution temperature (LCST). For the case of an isolated chain, we discuss scaling properties of the radius of gyration, end-to-end distance, various distribution functions, and the density profile of monomers below and above the LCST. For the case of the model thermoresposive brush, we search for the optimum grafting density at which the change in the brush height, upon crossing the LCST, reaches its maximum value. The interpretation of the thermoresponse, in terms of the Alexander-de Gennes blobs and the level of solvation of polymer chains in a brush, is provided.
description: 16 pages, 10 figures
LLMapReduce: Multi-Level Map-Reduce for High Performance Data Analysis
Creators: name: Byun, Chansup
name: Kepner, Jeremy
name: Arcand, William
name: Bestor, David
name: Bergeron, Bill
name: Gadepally, Vijay
name: Hubbell, Matthew
name: Michaleas, Peter
name: Mullen, Julie
name: Prout, Andrew
name: Rosa, Antonio
name: Yee, Charles
name: Reuther, Albert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The map-reduce parallel programming model has become extremely popular in the big data community. Many big data workloads can benefit from the enhanced performance offered by supercomputers. LLMapReduce provides the familiar map-reduce parallel programming model to big data users running on a supercomputer. LLMapReduce dramatically simplifies map-reduce programming by providing simple parallel programming capability in one line of code. LLMapReduce supports all programming languages and many schedulers. LLMapReduce can work with any application without the need to modify the application. Furthermore, LLMapReduce can overcome scaling limits in the map-reduce parallel programming model via options that allow the user to switch to the more efficient single-program-multiple-data (SPMD) parallel programming model. These features allow users to reduce the computational overhead by more than 10x compared to standard map-reduce for certain applications. LLMapReduce is widely used by hundreds of users at MIT. Currently LLMapReduce works with several schedulers such as SLURM, Grid Engine and LSF.
description: 8 pages; 19 figures; IEEE HPEC 2016
Excitons and trions in monolayer semiconductors with correlated electrons
Creators: name: Van Tuan, Dinh
name: Dery, Hanan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We revisit low-temperature optical spectra of transition-metal dichalcogenide monolayers and point to a possible crystallization of electrons (or holes) at low to moderate charge densities. To calculate the excitonic spectra under such conditions, we introduce the recursion method and compute how the charge density affects the energies, linewidths, and oscillator strengths of exciton and trion complexes. Equally important, we study how excitons and trions in the monolayer evolve when the charge particles gradually transition to a periodic Wigner lattice. The results provide valuable information on the ability to detect whether the particles are ordered through the exciton spectrum. Finally, we calculate the change in exciton energy in cases that the added charge particles have similar and dissimilar quantum numbers (spin and valley) to those of the electron or hole in the exciton. The results of this work shed new light on important optical properties of monolayer semiconductors.
description: 17 pages, 10 figures. We welcome your feedback
Gollmer, Fredrich
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Stuttgart
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Assessment of the impact of aerosol from heated-tobacco system compared with conventional cigarette smoke on experimental rheumatoid arthritis
Creators: name: HELUANY, C.S.
name: SCHARF, P.R.S.
name: SCHENEIDER, A.H.
name: DONATE, P.B.
name: CUNHA, F.Q.
name: FARSKY, S.H.P.
Publisher: name: Zenodo
Year: 2020

description: Rheumatoid arthritis (RA) is chronic autoimmune disease which is aggravated in smokers. Alternative modified-risk tobacco products are being developed to provide substitute products for smokers who are unable or unwilling to quit. Among then, heat-not-burn tobacco (HNBT) products generate reduced yields of toxicants compared with cigarettes and hold great potential for reducing the harms associated with tobacco. We aimed to investigate and compare the effects of CS exposure and the aerosol from HNBT on an experimental RA model. Male adults C57BL/6 mice were exposed to air, HNBT or commercial cigarettes in smoking chambers, following the Canada regimen, for 1 hour, twice a day, during the developmental phase of antigen-induced arthritis (AIA), between days 14 to 20. Mice were injected s.c. on day 0 with 500 μg of mBSA in an emulsion of saline and CFA, and boosted on days 7 and 14 with the same preparation in IFA. Intra-articular challenge was carried out on day 21 and after 24 h clinical symptoms were evaluated. Data obtained showed CS-exposed mice presented higher levels of blood carboxihemoglobin, higher articular hyperalgesia and edema, higher amount of NETs and MCP-1 in the synovia and higher number of granulocytes in the bone marrow than their counterparts. HNBT-exposed mice presented similar picture of the disease than air-exposed mice, except by reduced influx of cells in the synovial fluid. Nevertheless, such CS or HNBT exposures reduced the amount of IL-10 in the synovia and number of splenocytes and cells in the DLNs. Moreover, CS delivered higher amounts of toxic metals into exposure chambers, and lungs of CS-exposed mice showed higher histopathological score than other groups. Our data highlight HNBT exposure does not worse the local and systemic AIA symptomatology as CS exposure does, providing novel evidence surrounding the HNBT as a possible alternative to reduce the smoking-related health risks, mainly in chronic diseases. Financial support: FAPESP (2017/26998-9).
Gautier, Sorbé & Co
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Tampico
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Properties of Surface Plasmon Polaritons on lossy materials: Lifetimes, periods and excitation conditions
Creators: name: Derrien, Thibault J. -Y.
name: Krüger, Jörg
name: Bonse, Jörn
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The possibility to excite Surface Plasmon Polaritons (SPPs) at the interface between two media depends on the optical properties of both media and geometrical aspects. Specific conditions allowing the coupling of light with a plasmon-active interface must be satisfied. Plasmonic effects are well described in noble metals where the imaginary part of the dielectric permittivity is often neglected ("perfect medium approximation"). However, some systems exist for which such approximation cannot be applied, hence requiring a refinement of the common SPP theory. In this context, several properties of SPPs such as excitation conditions, period of the electromagnetic field modulation and SPP lifetime then may strongly deviate from that of the perfect medium approximation. In this paper, calculations taking into account the imaginary part of the dielectric permittivities are presented. The model identifies analytical terms which should not be neglected in the mathematical description of SPPs on lossy materials. These calculations are applied to numerous material combinations resulting in a prediction of the corresponding SPP features. A list of plasmon-active interfaces is provided along with a quantification of the above mentioned SPP properties in the regime where the perfect medium approximation is not applicable.
description: 9 pages, 7 figures, regular paper
Correlations at higher-order exceptional points in non-Hermitian models
Creators: name: Sticlet, Doru
name: Moca, Cătălin Paşcu
name: Dóra, Balázs
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the decay of spatial correlations of $\mathcal{PT}$-symmetric non-Hermitian one-dimensional models that host higher-order exceptional points. Beyond a certain correlation length, they develop anomalous power-law behavior that indicates strong suppression of correlations in the non-Hermitian setups as compared to the Hermitian ones. The correlation length is also reflected in the entanglement entropy where it marks a change from logarithmic growth at short distance to a constant value at large distance, characteristic of an insulator, despite the spectrum being gapless. Two different families of models are investigated, both having a similar spectrum constrained by particle-hole symmetry. The first model offers an experimentally attractive way to generate arbitrary higher-order exceptional points and represents a non-Hermitian extension of the Dirac Hamiltonian for general spin. At the critical point it displays a decay of the correlations $\sim 1/x^2$ and $1/x^3$ irrespective of the order of the exceptional point. The second model is constructed using unidirectional hopping and displays enhanced suppression of correlations $\sim 1/x^a$, $a\ge 2$ with a power law that depends on the order of the exceptional point.
description: 19 pages, 11 figures
Cajrati, M. De J., Fils
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Mailand
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Governing the healthcare market: regulatory challenges and options in the transitional China
Creators: name: Zhao, Hongwen
Publisher: name: La Trobe
Year: 2023

description: During the transition from a planned economy to a decentralized, market socialist economy, the Chinese healthcare system has evolved from a centralized, egalitarian public system (1949-1979) to one which is largely self-governed and can be characterized as 'public identity, private behavior' healthcare system (1980-1999). With blurring of the distinction between public and private governing systems, and a shift in norms towards profit orientation, major concern has arisen about the extent of high cost, high volume services being offered through excessive entrepreneurial practices. This thesis is concerned with the regulatory strategies and options to reach 2010 health reform objectives of equity and efficiency under a mixed public/private market. While possible lessons can be drawn from established economies and transitional economies, China faces some unique challenges, given the diverse market structures and fragmented healthcare system across the country, and the underdeveloped framework for the rule of law. The thesis reviews policy documents from 1949 to 2004 and draws from interviews with senior health policy-makers and hospital directors in three different locations, in order to explore the role of the state in market regulation, the effectiveness of technical and social regulations, and how policy implementation and regulatory compliance occur. The research has found that the dynamics of the healthcare system are shaped by the financing arrangements for healthcare and the absence of arms-length governance of hospitals by health departments. Without an effective state health financing tool, nor mature market institutions, China is not able to use neither performance-based regulation nor technology-based regulation. China has adopted a management-based regulatory strategy but the absence of effective governance structure hinders effective regulation. If the reform objectives of improving healthcare quality while costs are to be attained, China will need to develop purchasing tools to alter the current perverse incentives for provider behavior. Government will also need to work with civil society organizations to develop tools for clinical governance, such as clinical audit for risk management and hospital accreditation programs. To do so requires establishing arms-length governance mechanisms between health departments and hospitals, and appropriate corporate governance structures within hospitals. Specifically, MOH needs to establish a technical policy think tank to investigate all the policy issues arising from the announcement of the 1997 health reform, including coordination with other line ministries and provincial authorities, and formulation and implementation of a policy research agenda, in order to attain a market-based governance system for health by 2010.
Fehr, J. C
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: St. Gallen
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Fiers, Salomon
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Zürich
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Geigy, Johann Rudolf
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Basel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Gontard, Rudolf
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Paris
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Spin-Charge induced spontaneous scalarization of Kerr-Newman black holes
Creators: name: Lai, Meng-Yun
name: Myung, Yun Soo
name: Yue, Rui-Hong
name: Zou, De-Cheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the tachyonic instability of Kerr-Newman (KN) black holes in the Einstein-Maxwell-scalar (EMS) theory with a positive coupling parameter $α$. This corresponds to exploring the onset of spontaneous scalarization for KN black holes. For this purpose, we use the hyperboloidal foliation method (HFM) to solve the linearized scalar equation numerically. We obtain a 3D graph [$\log_{10}α(a,Q)$] which indicates the onset surface for spontaneous scalarization of KN black holes in the EMS theory. We find that there is no lower bound on the rotational parameter $a$, but its upper bound is given by $M^2-Q^2 \ge a^2$. Also, we confirm that the high rotation enhances spontaneous scalarization of KN black holes in the EMS theory.
description: 21 pages, 6 figures, Version accepted for publication in PRD. arXiv admin note: text overlap with arXiv:2206.11587
Fermi Assecuratori
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Livorno
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
FIPSER: Performance Study of a Readout Concept With Few Digitization Levels for Fast Signals
Creators: name: Limyansky, Brent
name: Reese, Robert
name: Cressler, John D.
name: Otte, Adam Nepomuk
name: Taboada, Ignacio
name: Ulusoy, Cagri
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We discuss the performance of a readout system, Fixed Pulse Shape Efficient Readout (FIPSER), to digitize signals from detectors with a fixed pulse shape. In this study we are mainly interested in the readout of fast photon detectors like photomultipliers or Silicon photomultipliers. But the concept can be equally applied to the digitization of other detector signals. FIPSER is based on the flash analog to digital converter (FADC) concept, but has the potential to lower costs and power consumption by using an order of magnitude fewer discrete voltage levels. Performance is bolstered by combining the discretized signal with the knowledge of the underlying pulse shape. Simulated FIPSER data was reconstructed with two independent methods. One using a maximum likelihood method and the other using a modified chisquared test. Both methods show that utilizing 12 discrete voltage levels with a sampling rate of 4 samples per full width half maximum (FWHM) of the pulse achieves an amplitude resolution that is better than the Poisson limit for photon-counting experiments. The time resolution achieved in this configuration ranges between 0.02 - 0.16 FWHM and depends on the pulse amplitude. In a situation where the waveform is composed of two consecutive pulses the pulses can be separated if they are at least 0.05 - 0.30 FWHM apart with an amplitude resolution that is better than 20%.
description: 23 pages, 11 figures
New views of the distant stellar halo
Creators: name: Sanderson, Robyn E.
name: Secunda, Amy
name: Johnston, Kathryn V.
name: Bochanski, John J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Currently only a small number of Milky Way (MW) stars are known to exist beyond 100 kpc from the Galactic center. Though the distribution of these stars in the outer halo is believed to be sparse, they can provide evidence of more recent accretion events than in the inner halo and help map out the MW's dark matter halo to its virial radius. We have re-examined the outermost regions of 11 existing stellar halo models with two synthetic surveys: one mimicking present-day searches for distant M giants and another mimicking RR Lyrae (RRLe) projections for LSST. Our models suggest that color and proper motion cuts currently used to select M giant candidates for follow-up successfully remove nearly all halo dwarf self-contamination and are useful for focusing observations on distant M giants, of which there are thousands to tens of thousands beyond 100 kpc in our models. We likewise expect that LSST will identify comparable numbers of RRLe at these distances. We demonstrate that several observable properties of both tracers, such as proximity of neighboring stars, proper motions, and distances (for RRLe) could help us separate different accreted structures from one another. We also discuss prospects for using ratios of M giants to RRLe as a proxy for accretion time, which in the future could provide new constraints on the recent accretion history of our Galaxy.
description: MNRAS subm., comments welcome
Gavazzi & Quinterio
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Mailand
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Holographic n-partite Information in Hyperscaling Violating Geometry
Creators: name: Ju, Xin-Xiang
name: Lai, Teng-Zhou
name: Sun, Ya-Wen
name: Wang, Yuan-Tai
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The $n$-partite information (nI) is formulated as a measure of multi-partite entanglement. Field theory computation revealed that the sign of nI is indefinite for $n\geq 3$, while holographic studies conjectured a sign property that holographic nI is non-negative/non-positive for even/odd $n$, with tripartite information (TI, $n=3$) proved. We investigate the aspects of nI with holographic duality in hyperscaling violating geometry. We confirm the conjectured sign property for strips of equal length with equal separation distance, and disprove this conjecture for $n>3$ with general configurations. Therefore, nI in field theories and holography exhibits compatibility except for $n=3$. We also discuss other properties of holographic nI with analytic computation: the monotonicity, linearity, relation to hyperscaling violating parameters, temperature and UV cutoff effects, and the physical implications. It is doubtful that nI is an effective measure of entanglement considering the indefinite sign, non-monotonicity, and quasi-linearity of its holographic dual. In this respect, we propose constraints on the multi-partite entanglement measures.
description: A truncated version with 25 pages, 15 figures
Level sequence and splitting identification of closely-spaced energy levels by angle-resolved analysis of the fluorescence light
Creators: name: Wu, Z. W.
name: Volotka, A. V.
name: Surzhykov, A.
name: Dong, C. Z.
name: Fritzsche, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The angular distribution and linear polarization of the fluorescence light following the resonant photoexcitation is investigated within the framework of the density matrix and second-order perturbation theory. Emphasis has been placed on "signatures" for determining the level sequence and splitting of intermediate (partially) overlapping resonances, if analyzed as a function of the photon energy of the incident light. Detailed computations within the multiconfiguration Dirac-Fock method have been performed especially for the $1s^{2}2s^{2}2p^{6}3s\;\, J_{i}=1/2 \,+\, γ_{1} \:\rightarrow\: (1s^{2}2s2p^{6}3s)_{1}3p_{3/2}\;\, J=1/2, \, 3/2 \:\rightarrow\: 1s^{2}2s^{2}2p^{6}3s\;\, J_{f}=1/2 \,+\, γ_{2}$ photoexcitation and subsequent fluorescence emission of atomic sodium. A remarkably strong dependence of the angular distribution and linear polarization of the $γ_{2}$ fluorescence emission is found upon the level sequence and splitting of the intermediate $(1s^{2}2s2p^{6}3s)_{1}3p_{3/2}\;\, J=1/2, \, 3/2$ overlapping resonances owing to their finite lifetime (linewidth). We therefore suggest that accurate measurements of the angular distribution and linear polarization might help identify the sequence and small splittings of closely-spaced energy levels, even if they can not be spectroscopically resolved.
description: 9 pages, 7 figures
Multimodal Recommender Systems in the Prediction of Disease Comorbidity
Creators: name: Cheruvu, Aashish
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: While deep-learning based recommender systems utilizing collaborative filtering have been commonly used for recommendation in other domains, their application in the medical domain have been limited. In addition to modeling user-item interactions, we show that deep-learning based recommender systems can be used to model subject-disease code interactions. Two novel applications of deep learning-based recommender systems using Neural Collaborative Filtering (NCF) and Deep Hybrid Filtering (DHF) were utilized for disease diagnosis based on known past patient comorbidities. Two datasets, one incorporating all subject-disease code pairs present in the MIMIC-III database, and the other incorporating the top 50 most commonly occurring diseases, were used for prediction. Accuracy and Hit Ratio@10 were utilized as metrics to estimate model performance. The performance of the NCF model making use of the reduced "top 50" ICD-9 code dataset was found to be lower (accuracy of ~80% and hit ratio@10 of 35%) as compared to the performance of the NCF model trained on all ICD-9 codes (accuracy of ~90% and hit ratio@10 of ~80%). Reasons for the superior performance of the sparser dataset with all ICD codes can be mainly attributed to the higher volume of data and the robustness of deep-learning based recommender systems with modeling sparse data. Additionally, results from the DHF models reflect better performance than the NCF models, with a better accuracy of 94.4% and hit ratio@10 of 85.36%, reflecting the importance of the incorporation of clinical note information. Additionally, compared to literature reports utilizing primarily natural language processing-based predictions for the task of ICD-9 code co-occurrence, the novel deep learning-based recommender systems approach performed better. Overall, the deep learning-based recommender systems have shown promise in predicting disease comorbidity.
description: 2022 Fourth International Conference on Transdisciplinary AI (TransAI)
Cerletti, G
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Chiavenna
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Geymüller & Co
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1829

description: Ort: Wien
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
DCASE 2020 audio captioning trained seq2seq weights (PyTorch 1.4.0)
Creators: name: Pellegrini, Thomas
Publisher: name: Zenodo
Year: 2020
Subjects: seq2seq
audio captioning

description: Weights of the model I used in my submissions to DCASE 2020 task 6 . audio captioning. see https://github.com/topel/dcase_2020_audio_captioning
QCD one-loop correction to Higgs boson decay into quarkonium-pair
Creators: name: Belov, I. N.
name: Berezhnoy, A. V.
name: Leshchenko, E. A.
name: Likhoded, A. K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Rare decays of the Higgs boson into quarkonia-pairs are studied within the framework of NRQCD approach. The main decay mechanisms and their interference are studied in detail. One-loop corrections to the widths of these decays are taken into account for the first time.
description: Minor changes for the text. Has been accepted by Phys. Rev. D
Scheduler Technologies in Support of High Performance Data Analysis
Creators: name: Reuther, Albert
name: Byun, Chansup
name: Arcand, William
name: Bestor, David
name: Bergeron, Bill
name: Hubbell, Matthew
name: Jones, Michael
name: Michaleas, Peter
name: Prout, Andrew
name: Rosa, Antonio
name: Kepner, Jeremy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Job schedulers are a key component of scalable computing infrastructures. They orchestrate all of the work executed on the computing infrastructure and directly impact the effectiveness of the system. Recently, job workloads have diversified from long-running, synchronously-parallel simulations to include short-duration, independently parallel high performance data analysis (HPDA) jobs. Each of these job types requires different features and scheduler tuning to run efficiently. A number of schedulers have been developed to address both job workload and computing system heterogeneity. High performance computing (HPC) schedulers were designed to schedule large-scale scientific modeling and simulations on supercomputers. Big Data schedulers were designed to schedule data processing and analytic jobs on clusters. This paper compares and contrasts the features of HPC and Big Data schedulers with a focus on accommodating both scientific computing and high performance data analytic workloads. Job latency is critical for the efficient utilization of scalable computing infrastructures, and this paper presents the results of job launch benchmarking of several current schedulers: Slurm, Son of Grid Engine, Mesos, and Yarn. We find that all of these schedulers have low utilization for short-running jobs. Furthermore, employing multilevel scheduling significantly improves the utilization across all schedulers.
description: 6 pages, 5 figures, IEEE High Performance Extreme Computing Conference 2016