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13th ACM/IEEE-CS Joint Conference on Digital Libraries, JCDL 2013

作者： Küçüktunç, Onur Saule, Erik Kaya, Kamer Çatalyürek, Ümit V. Dept. of Biomedical Informatics Ohio State University United States Dept. of Computer Science and Engineering Ohio State University United States Dept. of Electrical and Computer Engineering Ohio State University United States

ISBN: (纸本)9781450320764

The academic community has published millions of research papers to date, and the number of new papers has been increasing with time. To discover new research, researchers typically rely on manual methods such as keyword-based search, reading proceedings of conferences, browsing publication lists of known experts, or checking the references of the papers they are interested. Existing tools for the literature search are suitable for a first-level bibliographic search. However, they do not allow complex second-level searches. In this paper, we present a web service called theadvisor (http://***) which helps the users to build a strong bibliography by extending the document set obtained after a first-level search. The service makes use of the citation graph for recommendation. It also features diversification, relevance feedback, graphical visualization, venue and reviewer recommendation. In this work, we explain the design criteria and rationale we employed to make the theadvisor a useful and scalable web service along with a thorough experimental evaluation. Copyright © 2013 by the Association for Computing Machinery, Inc. (ACM).

关键词： Visualization

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Shattering and compressing networks for betweenness centrality

Shattering and compressing networks for betweenness centrali...

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13th SIAM International Conference on Data Mining, SMD 2013

作者： Sanyüce, Ahmet Erdem Saule, Erik Kaya, Kamer Çatalyürek, Ümit V. Dept. of Biomedical Informatics Ohio State University United States Dept. of Computer Science and Engineering Ohio State University United States Dept. of Electrical and Computer Engineering Ohio State University United States

ISBN: (纸本)9781627487245

The betweenness metric has always been intriguing and used in many analyses. Yet, it is one of the most computationally expensive kernels in graph mining. For that reason, making betweenness centrality computations faster is an important and well-studied problem. In this work, we propose the framework, BADIOS, which compresses a network and shatters it into pieces so that the centrality computation can be handled independently for each piece. Although BADIOS is designed and tuned for betweenness centrality, it can easily be adapted for other centrality metrics. Experimental results show that the proposed techniques can be a great arsenal to reduce the centrality computation time for various types and sizes of networks. In particular, it reduces the computation time of a 4.6 million edges graph from more than 5 days to less than 16 hours.

关键词： Electric network analysis

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Betweenness centrality on GPUs and heterogeneous architectures 6

Betweenness centrality on GPUs and heterogeneous architectur...

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6th Workshop on General Purpose Processor Using Graphics Processing Units, GPGPU 2013

作者： Sariyüce, Ahmet Erdem Kaya, Kamer Saule, Erik Çatalyürek, Ümit V. Depts. Biomedical Informatics Ohio State University United States Depts.Computer Science and Engineering Ohio State University United States Depts.Electrical and Computer Engineering Ohio State University United States

ISBN: (纸本)9781450320177

The betweenness centrality metric has always been intriguing for graph analyses and used in various applications. Yet, it is one of the most computationally expensive kernels in graph mining. In this work, we investigate a set of techniques to make the betweenness centrality computations faster on GPUs as well as on heterogeneous CPU/GPU architectures. Our techniques are based on virtualization of the vertices with high degree, strided access to adjacency lists, removal of the vertices with degree 1, and graph ordering. By combining these techniques within a fine-grain parallelism, we reduced the computation time on GPUs significantly for a set of social networks. On CPUs, which can usually have access to a large amount of memory, we used a coarse-grain parallelism. We showed that heterogeneous computing, i.e., using both architectures at the same time, is a promising solution for betweenness centrality. Experimental results show that the proposed techniques can be a great arsenal to reduce the centrality computation time for networks. In particular, it reduces the computation time of a 234 million edges graph from more than 4 months to less than 12 days. Copyright 2013 ACM.

关键词： Program processors

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Towards a personalized, scalable, and exploratory academic recommendation service

Towards a personalized, scalable, and exploratory academic r...

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2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2013

ISBN: (纸本)9781450322409

Literature search is an integral part of the academic research. Academic recommendation services have been developed to help researchers with their literature search, many of which only provide a text-based search functionality. Such services are suitable for a first-level bibliographic search;however, they lack the benefits of today's recommendation engines. In this paper, we identify three important properties that an academic recommendation service could provide for better literature search: personalization, scalability, and exploratory search. With these objectives in mind, we present a web service called theadvisor which helps the users build a strong bibliography by extending the document set obtained after a first-level search. Along with an efficient and personalized recommendation algorithm, the service also features result diversification, relevance feedback, visualization for exploratory search. We explain the design criteria and rationale we employed to make the theadvisor a useful and scalable web service with a thorough evaluation. Copyright 2013 ACM.

关键词： Bibliographies

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Diversified recommendation on graphs: Pitfalls, measures, and algorithms 13

Diversified recommendation on graphs: Pitfalls, measures, an...

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22nd International Conference on World Wide Web, WWW 2013

作者： Küçüktunç, Onur Saule, Erik Kaya, Kamer Çatalyürek, Ümit V. Dept. Biomedical Informatics Ohio State University United States Dept. of Computer Science and Engineering Ohio State University United States Dept. of Electrical and Computer Engineering Ohio State University United States

ISBN: (纸本)9781450320351

Result diversification has gained a lot of attention as a way to answer ambiguous queries and to tackle the redundancy problem in the results. In the last decade, diversification has been applied on or integrated into the process of PageRankor eigenvector-based methods that run on various graphs, including social networks, collaboration networks in academia, web and product co-purchasing graphs. For these applications, the diversification problem is usually addressed as a bicriteria objective optimization problem of relevance and diversity. However, such an approach is questionable since a query-oblivious diversification algorithm that recommends most of its results without even considering the query may perform the best on these commonly used measures. In this paper, we show the deficiencies of popular evaluation techniques of diversification methods, and investigate multiple relevance and diversity measures to understand whether they have any correlations. Next, we propose a novel measure called expanded relevance which combines both relevance and diversity into a single function in order to measure the coverage of the relevant part of the graph. We also present a new greedy diversification algorithm called Best-Coverage, which optimizes the expanded relevance of the result set with (1-1/e)-approximation. With a rigorous experimentation on graphs from various applications, we show that the proposed method is efficient and effective for many use cases. Copyright is held by the International World Wide Web Conference Committee (IW3C2).

关键词： World Wide Web

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Hacking HCI3P - Second Workshop on Human computer Interaction in Third Places 14

Hacking HCI3P - Second Workshop on Human Computer Interactio...

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2014 ACM SIGCHI Conference on Designing Interactive Systems, DIS 2014

作者： Calderon, Roberto Fels, Sidney Anacleto, Junia Memarovic, Nemanja Thompson, W. Travis Media And Graphics Interdisciplinary Centre University of British Columbia FSC 3640 - 2424 Main Mall Vancouver BC V6T 1Z4 Canada Department of Electrical and Computer Engineering University of British Columbia 2356 Main Mall Vancouver BC V6T 1Z4 Canada Computer Science Department Federal University of São Carlos 13565-905 São Carlos-SP Brazil Faculty of Informatics University of Lugano Via Giuseppe Buffi 13 6904 Lugano Switzerland Department of Communication University of South Florida 4202 E Fowler Ave CIS 1040 Tampa FL 33620 United States

ISBN: (纸本)9781450329033

The Second Workshop on Human computer Interaction for Third Places (HCI3P) aims at providing a forum to discuss the roles of interactive technologies, particularly under a DIY and Maker approach, in the shaping of the third places of the future. HCI3P is organized as a hands-on event with a 6-hour "crafting" session where participants will collaboratively create a low or medium fidelity prototype.

关键词： Personal computing

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Masher: Mapping long(er) reads with hash-based genome indexing on GPUs 13

Masher: Mapping long(er) reads with hash-based genome indexi...

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2013 4th ACM Conference on Bioinformatics, Computational Biology and Biomedical informatics, ACM-BCB 2013

作者： Abu-Doleh, Anas Saule, Erik Kaya, Kamer Çatalyürek, Ümit V. Dept. of Biomedical Informatics Ohio State University United States Dept. of Electrical and Computer Engineering Ohio State University United States

ISBN: (纸本)9781450324342

Fast and robust algorithms and aligners have been developed to help the researchers in the analysis of genomic data whose size has been dramatically increased in the last decade due to the technological advancements in DNA sequencing. It was not only the size, but the characteristics of the data have been changed. One of the current concern is that the length of the reads is increasing. Although existing algorithms can still be used to process this fresh data, considering its size and changing structure, new and more efficient approaches are required. In this work, we address the problem of accurate sequence alignment on GPUs and propose a new tool, Masher, which processes long (and short) reads efficiently and accurately. The algorithm employs a novel indexing technique that produces an index for the 3;137Mbp hg19 with a memory footprint small enough to be stored in a restricted-memory device such as a GPU. The results show that Masher is faster than state-of-the-art tools and obtains a good accuracy/sensitivity on sequencing data with various characteristics. Copyright © 2007 by the Association for Computing Machinery.

关键词： DNA sequences

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Identification of vertical deep-ocean pipe end-point position

Identification of vertical deep-ocean pipe end-point positio...

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10th ISOPE Ocean Mining and Gas Hydrates Symposium, ISOPE OMS 2013

作者： Hubinský, Peter Rodina, Jozef Hanzel, Jaroslav Rudolf, Boris Institute of Control and Industrial Informatics Faculty of Electrical Engineering and Information Technology Slovak University of Technology in Bratislava Bratislava Slovakia Institute of Computer Science and Mathematics Faculty of Electrical Engineering and Information Technology Slovak University of Technology in Bratislava Bratislava Slovakia

ISBN: (纸本)9781880653920

In this article, we are introducing the method of the localization of the deep-ocean pipe end-point. The set of various sensors located along the pipe are used for measuring the data describing the shape of the pipe. Several variants of calculation algorithm have been developed for the processing the gathered information. The simulation results describing the error characteristics of the input and output variables are included as well. The article contains also the basic information about the technical realization concept of the proposed method. Copyright © 2013 by The International Society of Offshore and Polar Engineers (ISOPE).

关键词： Point contacts

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Search for long-lived, massive particles in events with displaced vertices and missing transverse momentum in s=13 TeV pp collisions with the ATLAS detector

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Physical Review D 2018年第5期97卷 052012-052012页

作者： M. Aaboud G. Aad B. Abbott O. Abdinov B. Abeloos S. H. Abidi O. S. AbouZeid N. L. Abraham H. Abramowicz H. Abreu R. Abreu Y. Abulaiti B. S. Acharya S. Adachi L. Adamczyk J. Adelman M. Adersberger T. Adye A. A. Affolder T. Agatonovic-Jovin C. Agheorghiesei J. A. Aguilar-Saavedra S. P. Ahlen F. Ahmadov G. Aielli S. Akatsuka H. Akerstedt T. P. A. Åkesson E. Akilli A. V. Akimov G. L. Alberghi J. Albert P. Albicocco M. J. Alconada Verzini S. C. Alderweireldt M. Aleksa I. N. Aleksandrov C. Alexa G. Alexander T. Alexopoulos M. Alhroob B. Ali M. Aliev G. Alimonti J. Alison S. P. Alkire B. M. M. Allbrooke B. W. Allen P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. A. Alshehri M. I. Alstaty B. Alvarez Gonzalez D. Álvarez Piqueras M. G. Alviggi B. T. Amadio Y. Amaral Coutinho C. Amelung D. Amidei S. P. Amor Dos Santos A. Amorim S. Amoroso G. Amundsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders J. K. Anders K. J. Anderson A. Andreazza V. Andrei S. Angelidakis I. Angelozzi A. Angerami A. V. Anisenkov N. Anjos A. Annovi C. Antel M. Antonelli A. Antonov D. J. Antrim F. Anulli M. Aoki L. Aperio Bella G. Arabidze Y. Arai J. P. Araque V. Araujo Ferraz A. T. H. Arce R. E. Ardell F. A. Arduh J-F. Arguin S. Argyropoulos M. Arik A. J. Armbruster L. J. Armitage O. Arnaez H. Arnold M. Arratia O. Arslan A. Artamonov G. Artoni S. Artz S. Asai N. Asbah A. Ashkenazi L. Asquith K. Assamagan R. Astalos M. Atkinson N. B. Atlay K. Augsten G. Avolio B. Axen M. K. Ayoub G. Azuelos A. E. Baas M. J. Baca H. Bachacou K. Bachas M. Backes M. Backhaus P. Bagnaia M. Bahmani H. Bahrasemani J. T. Baines M. Bajic O. K. Baker E. M. Baldin P. Balek F. Balli W. K. Balunas E. Banas A. Bandyopadhyay Sw. Banerjee A. A. E. Bannoura L. Barak E. L. Barberio D. Barberis M. Barbero T. Barillari M-S Barisits J. T. Barkeloo T. Barklow N. Barlow S. L. Barnes B. M. Barnett R. M. Barnett Z. Barnovska-Blenessy A. Baroncelli G. Barone A. J. Barr L. Barranco Navarro F. Barreiro J. Barreiro Guimarães da Costa R. Bartoldus A. E. Barton P. Bartos A. Faculté des Sciences Université Mohamed Premier and LPTPM Oujda Morocco CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan LAL Univ. Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France Department of Physics University of Toronto Toronto Ontario Canada Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz California USA Department of Physics and Astronomy University of Sussex Brighton United Kingdom Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion: Israel Institute of Technology Haifa Israel Center for High Energy Physics University of Oregon Eugene Oregon USA Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy International Center for Elementary Particle Physics and Department of Physics The University of Tokyo Tokyo Japan AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Institute of Physics University of Belgrade Belgrade Serbia Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania Laboratório de Instrumentação e Física Experimental de Partículas—LIP Lisboa Portugal Departamento de Fisica Teorica y del Cosmos Universidad de Granada Granada Spain Department of Physics Boston University Boston Massachusetts USA Joint Institute for Nuclear Research JINR Dubna Dubna Russia INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica U

A search for long-lived, massive particles predicted by many theories beyond the Standard Model is presented. The search targets final states with large missing transverse momentum and at least one high-mass displaced vertex with five or more tracks, and uses 32.8 fb−1 of s=13 TeV pp collision data collected by the ATLAS detector at the LHC. The observed yield is consistent with the expected background. The results are used to extract 95% C.L. exclusion limits on the production of long-lived gluinos with masses up to 2.37 TeV and lifetimes of O(10−2)−O(10) ns in a simplified model inspired by split supersymmetry.

关键词： Hypothetical particles Superpartners Supersymmetry

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Measurements of Higgs boson properties in the diphoton decay channel with 36 fb−1 of pp collision data at s=13 TeV with the ATLAS detector

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Physical Review D 2018年第5期98卷 052005-052005页

作者： M. Aaboud G. Aad B. Abbott O. Abdinov B. Abeloos S. H. Abidi O. S. AbouZeid N. L. Abraham H. Abramowicz H. Abreu Y. Abulaiti B. S. Acharya S. Adachi L. Adamczyk J. Adelman M. Adersberger T. Adye A. A. Affolder Y. Afik C. Agheorghiesei J. A. Aguilar-Saavedra S. P. Ahlen F. Ahmadov G. Aielli S. Akatsuka H. Akerstedt T. P. A. Åkesson E. Akilli A. V. Akimov G. L. Alberghi J. Albert P. Albicocco M. J. Alconada Verzini S. C. Alderweireldt M. Aleksa I. N. Aleksandrov C. Alexa G. Alexander T. Alexopoulos M. Alhroob B. Ali M. Aliev G. Alimonti J. Alison S. P. Alkire B. M. M. Allbrooke B. W. Allen P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. A. Alshehri M. I. Alstaty B. Alvarez Gonzalez D. Álvarez Piqueras M. G. Alviggi B. T. Amadio Y. Amaral Coutinho C. Amelung D. Amidei S. P. Amor Dos Santos S. Amoroso C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders J. K. Anders K. J. Anderson A. Andreazza V. Andrei S. Angelidakis I. Angelozzi A. Angerami A. V. Anisenkov N. Anjos A. Annovi C. Antel M. Antonelli A. Antonov D. J. Antrim F. Anulli M. Aoki L. Aperio Bella G. Arabidze Y. Arai J. P. Araque V. Araujo Ferraz A. T. H. Arce R. E. Ardell F. A. Arduh J-F. Arguin S. Argyropoulos M. Arik A. J. Armbruster L. J. Armitage O. Arnaez H. Arnold M. Arratia O. Arslan A. Artamonov G. Artoni S. Artz S. Asai N. Asbah A. Ashkenazi L. Asquith K. Assamagan R. Astalos M. Atkinson N. B. Atlay K. Augsten G. Avolio B. Axen M. K. Ayoub G. Azuelos A. E. Baas M. J. Baca H. Bachacou K. Bachas M. Backes P. Bagnaia M. Bahmani H. Bahrasemani J. T. Baines M. Bajic O. K. Baker P. J. Bakker D. Bakshi Gupta E. M. Baldin P. Balek F. Balli W. K. Balunas E. Banas A. Bandyopadhyay Sw. Banerjee A. A. E. Bannoura L. Barak E. L. Barberio D. Barberis M. Barbero T. Barillari M-S Barisits J. T. Barkeloo T. Barklow N. Barlow S. L. Barnes B. M. Barnett R. M. Barnett Z. Barnovska-Blenessy A. Baroncelli G. Barone A. J. Barr L. Barranco Navarro F. Barreiro J. Barreiro Guimarães da Costa R. Bartoldus A. E. Barton P. Bartos A. Basalaev A. Bassalat R. L Faculté des Sciences Université Mohamed Premier and LPTPM Oujda Morocco CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan LAL Univ. Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France Department of Physics University of Toronto Toronto Ontario Canada Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz California USA Department of Physics and Astronomy University of Sussex Brighton United Kingdom Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion: Israel Institute of Technology Haifa Israel Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy International Center for Elementary Particle Physics and Department of Physics The University of Tokyo Tokyo Japan AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania Laboratório de Instrumentação e Física Experimental de Partículas—LIP Lisboa Portugal Departamento de Fisica Teorica y del Cosmos Universidad de Granada Granada Spain Department of Physics Boston University Boston Massachusetts USA Joint Institute for Nuclear Research JINR Dubna Dubna Russia INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma Italy Faculty of Science Kyoto University Kyoto Japan Fysiska institutionen Lunds universitet L

Properties of the Higgs boson are measured in the two-photon final state using 36.1 fb−1 of proton–proton collision data recorded at s=13 TeV by the ATLAS experiment at the Large Hadron Collider. Cross-section measurements for the production of a Higgs boson through gluon–gluon fusion, vector-boson fusion, and in association with a vector boson or a top-quark pair are reported. The signal strength, defined as the ratio of the observed to the expected signal yield, is measured for each of these production processes as well as inclusively. The global signal strength measurement of 0.99±0.14 improves on the precision of the ATLAS measurement at s=7 and 8 TeV by a factor of two. Measurements of gluon–gluon fusion and vector-boson fusion productions yield signal strengths compatible with the Standard Model prediction. Measurements of simplified template cross sections, designed to quantify the different Higgs boson production processes in specific regions of phase space, are reported. The cross section for the production of the Higgs boson decaying to two isolated photons in a fiducial region closely matching the experimental selection of the photons is measured to be 55±10 fb, which is in good agreement with the Standard Model prediction of 64±2 fb. Furthermore, cross sections in fiducial regions enriched in Higgs boson production in vector-boson fusion or in association with large missing transverse momentum, leptons or top-quark pairs are reported. Differential and double-differential measurements are performed for several variables related to the diphoton kinematics as well as the kinematics and multiplicity of the jets produced in association with a Higgs boson. These differential cross sections are sensitive to higher order QCD corrections and properties of the Higgs boson, such as its spin and CP quantum numbers. No significant deviations from a wide array of Standard Model predictions are observed. Finally, the strength and tensor structure of the Higgs boson

关键词： Higgs bosons Photons Particle properties Particle data analysis

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