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Search for squarks and gluinos in events with an isolated lepton, jets, and missing transverse momentum at s=13 TeV with the ATLAS detector

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Physical Review D 2017年第11期96卷 112010-112010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 ON 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 Stockholm 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 Portugal 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

The results of a search for squarks and gluinos in final states with an isolated electron or muon, multiple jets and large missing transverse momentum using proton-proton collision data at a center-of-mass energy of s=13 TeV are presented. The data set used was recorded during 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider and corresponds to an integrated luminosity of 36.1 fb−1. No significant excess beyond the expected background is found. Exclusion limits at 95% confidence level are set in a number of supersymmetric scenarios, reaching masses up to 2.1 TeV for gluino pair production and up to 1.25 TeV for squark pair production.

关键词： Supersymmetry Particle data analysis

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Improved k-means algorithm based on optimizing initial cluster centers

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ICIC Express Letters 2013年第3 B期7卷 991-996页

作者： Wu, Di Zhang, Yongjing Yang, Fengqin Cheng, Siying Sun, Hongguang Sun, Tieli School of Computer Science and Information Technology Northeast Normal University No. 2555 Jingyue Avenue Changchun 130117 China Key Laboratory of Intelligent Information Processing of Jilin Universities Northeast Normal University No. 2555 Jingyue Avenue Changchun 130117 China

The k-means algorithm is known to be a fast clustering algorithm. However, it is sensitive to initial cluster centers and the number K must be pre-set. To solve the problem, the k-means algorithm based on Max-Min distance algorithm has been introduced, but it cannot handle noise data. In this paper, we present the improved Unweighted Pair Group Method with Arithmetic Mean (UPGMA) algorithm with Max-Min distance method (IU-M) k-means algorithm, data sampling and the improved UPGMA algorithm are used before the Max-Min distance algorithm to get favorable initial cluster centers, and the number K can be determined intelligently. Comparative experiments are done on three benchmark datasets. The results demonstrate that the IU-M k-means algorithm is efficient and effective. © 2013 ICIC International.

关键词： Clustering algorithms

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Boundary feedback control design and stability of open-channel networks

Communications in Computer and Information Science

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Communications in computer and information Science 2013年 355卷 342-350页

作者： Cen, Lihui Xi, Yugeng Li, Dewei Cen, Yigang Department of Control Engineering Central South University Changsha China Key Laboratory of System Control and Information Processing Ministry of Education Department of Automation Shanghai Jiaotong University Shanghai China School of Computer and Information Technology Beijing Jiaotong University Beijing China

This paper proposed a boundary feedback control design for open-channel networks with trapezoidal cross sections by using a Riemann invariants approach. The open-channel network is well modeled by the nonlinear Saint-Venant equations. Based on the characteristic form in terms of Riemann invariants, the stabilizing boundary control is developed for a single canal. The stability condition and the boundary control design are subsequently generalized to open-channel networks composed by multireaches in cascade. The design of the boundary feedback control laws either for a single canal or for the cascaded networks is illustrated in a unified design framework. © Springer-Verlag Berlin Heidelberg 2013.

关键词： Feedback control

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An improved incremental Naïve Bayesian for sentiment classification

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ICIC Express Letters 2013年第3 B期7卷 959-964页

作者： Yang, Fengqin Zhou, Wanting Wu, Di Sun, Xiaoxin Sun, Hongguang Sun, Tieli School of Computer Science and Information Technology Northeast Normal University No. 2555 Jingyue Avenue Changchun 130117 China Key Laboratory of Intelligent Information Processing of Jilin Universities Northeast Normal University No. 2555 Jingyue Avenue Changchun 130117 China

Web review mining and sentiment analysis can help customers effectively. Currently the existing methods are mainly divided into supervised and unsupervised. This paper adopted supervised method and proposed an improved incremental Naïve Bayesian (Named T-INB) for Sentiment Classification. In order to decrease the effect of noise data in traditional incremental Bayesian, a threshold is introduced and it can control the order in which data is added to the original training dataset. Experimental results on a movie review data set show our approach is feasible and effective. © 2013 ICIC International.

关键词： Sentiment analysis

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An iterative space alternative tiling parallel algorithm for 3D finite difference stencil computations

International Journal of Database Theory and Application

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International Journal of Database Theory and Application 2014年第6期7卷 105-120页

作者： Shen, Jing Zhang, Jilin Wan, Jian Zhou, Li Jiang, Ming School of Computer Science and Technology Hangzhou Dianzi University Hangzhou Zhejiang China Key Laboratory of Complex Systems Modeling and Simulation Ministry of Education China Zhejiang Provincial Engineering Center on Media Data Cloud Processing and Analysis Hangzhou China School of Information Engineering Hangzhou Dianzi University Hangzhou Zhejiang China

Stencils are finite-difference algorithms for solving large-scale and high-dimension partial differential equations. Due to the data dependences among the iterative statements in Stencils, traditional Stencil computations are be executed serially, rather than in parallel. It's challenging to design an effective and scalable Stencil parallelized method. To address the issue of 3D data space computing, we present a serial execution model based on multi-layers symmetric Stencil method and time skewing techniques. Within this model, the iteration space is divided to multiple tiles based on time skewing, where the executive process is ordered by the sequence of tiles, and the nodes in each individual tile can be swept repeatedly to improve the data locality. In addition, we propose a novel 3D iterative space alternate tiling Stencil parallel method, which subdivides the iteration space along high dimension, and changes the execution sequence of tiles to reduce the data dependency and communication cost, where the partial order of tiles is still guaranteed. Experimental results demonstrate our proposed alternative tiling parallel method achieves better parallel efficiency and scalability compared with the domain-decomposition methods.

关键词： Iterative methods

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Multi-feature bio-inspired model for scene classification

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Applied Mechanics and Materials 2013年 303-306卷 1569-1572页

作者： Hu, De-Kun Lin, Jie College of Information Science and Technology Chengdu University Chengdu 610106 China Key Laboratory of Pattern Recognition and Intelligent Information Processing Institutions of Higher Education of Sichuan Province 610106 China School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 China

ISBN: (纸本)9783037856529

A multi-feature bio-inspired model for scene image classification (MFBIM) is presented in this work;it extends the hierarchical feedforward model of the visual cortex. Firstly, each of three paths of classification uses each image property (i.e. shape, edge or color based features) independently. Then, BPNN assigns the category of an image based on the previous outputs. Experiments show that the model boosts the classification accuracy over the shape based model. Meanwhile, the proposed approach achieves a high accuracy comparable to other reported methods on publicly available color image dataset. © (2013) Trans Tech Publications, Switzerland.

关键词： computer vision

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A multi-label classification approach based on ontology and structure weight strategy

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ICIC Express Letters 2013年第3 B期7卷 1055-1059页

作者： Sun, Hongguang Yang, Lin Wu, Di Yang, Fengqin Sun, Tieli School of Computer Science and Information Technology Northeast Normal University No. 2555 Jingyue Street Changchun 130117 China Key Laboratory of Intelligent Information Processing of Jilin Universities Northeast Normal University No. 2555 Jingyue Street Changchun 130117 China

In this paper, we propose a text classification approach based on Ontology and Structure Weight Strategy as the Multi-label Classification for Chinese science papers. Considering the special structure of Chinese Science Paper Online, we transformed the title, abstract, key words, and the text of the paper into four parts that are title, abstract, key words, general feature words and assign a different weight to each part. We adopt ontology to abstract the feature of papers in classifying science papers. Experiments demonstrate the effectiveness of our algorithm for Chinese science paper classification, and it can improve the average precision in multi-label classification. © 2013 ICIC International.

关键词： Ontology

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Improved multi-objective evolutionary algorithm for multi-agent coalition formation

Journal of Software

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Journal of Software 2013年第12期8卷 2991-2995页

作者： Xu, Bo Zhang, Ruizhe Yu, Jian Ping Department of Computer Science and Technology of Guangdong University of Petrochemical Technology Guangdong Province China Computer Science and Technic Academy Department Pingdingshan University Henan Province China College of Mathematics and Computer Science Key Laboratory of High Performance Computing and Stochastic Information Processing Hunan Normal University Hunan Province China

One of the key problems in multi-agent coalition formation is to optimally assign and schedule resources. An improved multi-objective evolutionary Algorithm (IMOEA) is proposed to solve this problem. Compared with several well-known algorithms such as NSGA, MOEA, experimental results show the algorithm is very suitable for coalition formation problem. © 2013 Academy Publisher.

关键词： Multiobjective optimization

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A novel moving cast shadow detection of vehicles in traffic scene 1

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3rd Sino-Foreign-Interchange Workshop on Intelligent Science and Intelligent Data Engineering, IScIDE 2012

作者： Jia, Yuhong Yu, Xiaoxi Dai, Jiangyan Hu, Wanjun Kong, Jun Qi, Miao Department of Information Engineering Jilin Business and Technology College Changchun 130062 China School of Computer Science and Information Technology Northeast Normal University Key Laboratory of Intelligent Information Processing of Jilin Universities Changchun 130117 China

ISBN: (数字)9783642366697

ISBN: (纸本)9783642366680

In the traffic video scene, the existence of shadows might generate negative effect on pattern analysis. This paper proposes a novel approach which adequately considers color space information to detect moving cast shadows of vehicles in traffic videos. Firstly, RGB component ratios between frame and background as well as blue and red colors ratio (B/R ratio) are taken into account to detect shadows respectively. Then we combine the two results for a refined shadow candidate. Finally, to improve the accuracy of shadow detection, post processing is adopted to correct the false detected pixels. Experimental results on several databases indicate that our approach not only achieves both high shadow detection and discrimination rates but takes on better performance than some state-of-the-art methods. © Springer-Verlag 2013.

关键词： Color

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Failure modes and stability of rock mass slope containing multi-weak interlayer

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Journal of Applied Sciences 2013年第21期13卷 4371-4378页

作者： Liu, Jie-Qun Chen, Lu-Wang Liu, Jin-Long Department of Computer Science and Technology Key Laboratory of Network and Intelligent Information Processing Hefei University 230601 Hefei China School of Resource and Environmental Engineering Hefei University of Technology 230009 Hefei China Department of Civil Engineering Hefei University 230601 Hefei China

The phenomena of rock mass slope with multi-weak interlayer can be found in real engineering frequently. It is worthy to study the influence of multi-weak interlayer on failure of rock mass slope. Based on the shear strength reduction finite element method stability and failure surface of rock mass slope with different parameters had been studied, the failure mechanism of rock mass slope containing multi-weak interlayer has been analyzed. It can be found that the stability of consequent rock slope decreased first and increased later with increasing of rock stratum inclination which got its minimal value at 30° of rock stratum inclination. The stability of anti-dip rock slope fluctuated with increasing of rock stratum inclination which got its maximal value at 135° of rock stratum inclination. Whether consequent rock slope or anti-dip rock slope, the stability of slope decreased witii angle of slope increased. Although the stability of rock slope reduced or weakened by multi-weak interlayer, the failure and stability is controlled by parameters of rock mass mostly. © 2013 Asian Network for Scientific information.

关键词： Finite element method

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