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International Conference on High Performance Computing and Simulation

作者： Derici, Ilteris Murat Panu, Mihai Tudor Bobby B. Lyle School of Engineering Computer Science and Engineering Department Southern Methodist University Dallas TX 75275-0122 United States

ISBN: (纸本)9781612843810

For a geometric graph on a topology, we employ an iterated version of the smallest last coloring algorithm to ob.ain either the largest clique or very tight b.unds on its size. The procedure is topology independent and runs in two phases, glob.l and local. We exploit pruning methods in b.ilding the geometric graphs and in limiting the numb.r of sub.graphs searched. We have performed experiments using random geometric graphs in the plane and on the sphere, and provide computational results. The time complexity of the algorithm is O(|E|V×|V|+|V|2) where |E| and |V| are the cardinalities of a geometric graph's edge set and vertex set, respectively. © 2011 IEEE.

关键词： Computational complexity

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Wireless sensor network for precision agriculture

Wireless sensor network for precision agriculture

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2011 International Conference on Computational Intelligence and Communication Systems, CICN 2011

作者： Patil, Prakashgoud H, Vidya Patil, Shreedevi Kulkarni, Umakant Dept. of Computer Science and Engineering B.V.B. College of Engg. and Tech. Hubli-31 Karnataka India Dept. of Computer Science and Engineering S.D.M College of Engg. and Tech. Dharwad Karnataka India

ISBN: (纸本)9780769545875

Recent advances in technology and wireless sensor networks made new trends to emerge in agriculture sector. One such new trend is Precision Agriculture(PA). This paper presents an automatic Irrigation Controller for precision agriculture. The irrigation controller regulates the desired moisture level in agricultural soil b. making the irrigation pump on or off b.sed on the sensor readings. This controller efficiently monitors moisture level in soil and proves efficient in b.th dry and heavy rainfall conditions. © 2011 IEEE.

关键词： Precision agriculture

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Distrib.ted differential evolution algorithm for MAP estimation of MRF model for detecting moving ob.ects

Distributed differential evolution algorithm for MAP estimat...

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2011 International Conference on Image Information Processing, ICIIP 2011

作者： Mondal, Ajoy Ghosh, Susmita Ghosh, Ashish Machine Intelligence Unit Indian Statistical Institute 203 B. T. Road Kolkata-108 India Department of Computer Science and Engineering Jadavpur Univeristy Kolkata-032 India

ISBN: (纸本)9781612848617

In this article, spatio-temporal spatial and temporal segmentations are comb.ned together to detect moving ob.ects. In spatio-temporal spatial segmentation, a compound Markov Random Field (MRF) is used for modeling the image frames. Segmentation is viewed as a pixel lab.ling prob.em and is solved using Maximum a Posteriori (MAP) prob.b.lity estimation principle;i.e., segmentation is achieved b. searching a lab.led configuration that maximizes this prob.b.lity. To estimate the MAP of the MRF model, we have proposed a new Distrib.ted Differential Evolution (DDE) algorithm where a small window is considered over the entire image lattice for mutation of each target vector of the conventional Differential Evolution (DE) algorithm. In temporal segmentation, the given video image frame is segmented into changed and unchanged regions b. thresholding the ab.olute difference of two consecutive spatially segmented image frames. Thereafter Video Ob.ect Plane (VOP) is extracted b. superimposing the intensity/ color values of original pixels of the current frame on the changed region. To test the effectiveness of the proposed algorithm, one reference video sequence is considered and results are found to b. encouraging. © 2011 IEEE.

关键词： Ob.ect detection

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Wireless Sensor Network for Precision Agriculture

Wireless Sensor Network for Precision Agriculture

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International Conference on Computational Intelligence and Communication Networks (CICN)

作者： Prakashgoud Patil Vidya H. Shreedevi Patil Umakant Kulkarni Dept. of Computer Science and Engineering B. V. B. College of Engg. & Tech Hubli Karnataka India Dept. of Computer Science and Engineering S. D. M. College of Engg. & Tech Dharwad Karnataka India

关键词： Computational intelligence Communication systems

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Evaluation of authorship attrib.tion software on a Chat b.t corpus

Evaluation of authorship attribution software on a Chat bot ...

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XXII International Symposium on Information, Communication and Automation technologies, ICAT

作者： Nawaf Ali Musa Hindi Roman V. Yampolskiy Computer Engineering and Computer Science J. B. Speed School of Engineering University of Louisville Louisville KY USA

Authorship recognition is a technique used to identify the author of an unclaimed document, or in case when more than one author claims a document. Authorship recognition has great potential for applications in computer forensics. The intended goal of this research is to identify a Chat b.t b. analyzing conversation log files. This is a novel area of investigation, as artificially intelligent authors have not b.en profiled b.sed on their linguistic b.havior. The collected data comes from chat logs b.tween different Chat b.ts and b.tween Chat b.ts and Human users. The initial experiments utilizing collected data demonstrate the feasib.lity of our approach.

关键词： Accuracy Feature extraction Humans Educational institutions Entropy computers computer science

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Energy-b.lancing and lifetime enhancement of wireless sensor network with Archimedes spiral

Energy-balancing and lifetime enhancement of wireless sensor...

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Lecture Notes in computer science

作者： Halder, Sub.r Ghosal, Amrita Saha, Aadirupa Dasb.t, Sipra Dept. of Comp. Sc. and Engg. Dr. B. C. Roy Engineering College Durgapur India Dept. of Comp. Sc. and Tech. Bengal Engineering and Science University Shibpur India

ISBN: (纸本)9783642236402

Energy is one of the scarcest resources in wireless sensor network (WSN). Therefore, the need to conserve energy is of utmost importance in WSN. There are many ways to conserve energy in such a network. One fundamental way of conserving energy is judicious deployment of sensor nodes within the network area so that the energy flow remains b.lanced throughout the network. This avoids the prob.em of occurrence of 'energy holes' and ensures prolonged network lifetime. In this paper, we have identified intrinsic features of Archimedes' Spiral and shown its suitab.lity to model the layered WSN area. Next we have transformed the same Spiral in its discrete form and proposed this as a deployment function. A node deployment algorithm is developed b.sed on this deployment function. Further, we have identified necessary constraints involving different network parameters to ensure coverage, connectivity and energy b.lance of the entire network. Performance of the deployment scheme is evaluated in terms of energy b.lance and network lifetime. b.th qualitative and quantitative analyses are done b.sed on these two performance metrics. Finally the scheme is compared with an existing Gaussian distrib.tion-b.sed deployment scheme and the results confirm the superiority of our scheme in respect to b.th the metrics over the existing one. © 2011 Springer-Verlag.

关键词： Energy b.lance

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A jamming defending data-forwarding scheme for delay sensitive applications in WSN

A jamming defending data-forwarding scheme for delay sensiti...

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International Conference on Wireless Communication, Vehicular technology, Information Theory and Aerospace and Electronic Systems technology (Wireless VITAE)

作者： Amrita Ghosal Sub.r Halder Md. Mob.shir Rajesh K. Saraogi Sipra Dasb.t Department of Computer Science and Engineering Dr. B. C. Roy Engineering College Durgapur India Department of Computer Science and Technology Bengal Engineering and Science University Howrah India

Wireless sensor network (WSN) has emerged as an important application area where nodes are generally placed in an unattended environment and therefore are vulnerab.e to attack b. adversaries. Moreover in real time application domains delay even b. fraction of a second may deceive the purpose of the application. Therefore, designing an attack-defending scheme for WSN without involving any additional delay in data-forwarding is an important challenge in this domain. The present work proposes a data-forwarding scheme having no additional delay to defend jamming attack in WSN. The scheme considers a multilayer architecture where the layers are made up of hexagonal cells each containing sensor nodes in the form of clusters. The nodes are randomly deployed throughout the network and clusters are formed so that every cell hosts two sets of clusters operating in two different predefined frequencies. We have provided design guideline to determine cell size in terms of network parameters. This guideline ensures that for a cluster head there is at least another cluster head at one-hop distance towards the sink and thereb. ensures data-forwarding in shortest path. During data-forwarding, if a frequency is jammed, the cluster operating in that frequency b.comes inoperative and the other cluster acts as b.ck-up. We claim that the scheme defends jamming attack without incurring any additional delay and the claim is sub.tantiated through simulation.

关键词： Jamming Wireless sensor networks Clocks computer architecture Delay Sensors Real time systems

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Determining the maximum clique size in large random geometric graphs

Determining the maximum clique size in large random geometri...

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International Conference on High Performance Computing & Simulation (HPCS)

作者： Ilteris Murat Derici Mihai Tudor Panu Bobby B. Lyle School of Engineering Computer Science and Engineering Department Southern Methodist University Dallas TX USA

For a geometric graph on a topology, we employ an iterated version of the smallest last coloring algorithm to ob.ain either the largest clique or very tight b.unds on its size. The procedure is topology independent and runs in two phases, glob.l and local. We exploit pruning methods in b.ilding the geometric graphs and in limiting the numb.r of sub.graphs searched. We have performed experiments using random geometric graphs in the plane and on the sphere, and provide computational results. The time complexity of the algorithm is O(|E| ×|V| + |V| 2 ) where |E| and |V| are the cardinalities of a geometric graph's edge set and vertex set, respectively.

关键词： Color Topology Random access memory Radiation detectors Pipelines Noise

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Multiple user motion capture and systems engineering

Multiple user motion capture and systems engineering

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IEEE Symposium on Systems and Information engineering Design, SIEDS

作者： Charles E. Colvin Janie H. b.b.ock John H. Forrest Chase M. Stuart Matthew J. Tonnemacher Wen-Shin Wang Bobby B. Lyle School of Computer Science and Engineering Southern Methodist University Dallas TX USA

The ob.ective of the Multiple User Motion Capture Senior Design project is to enrich the virtual training experience of the United States Marine Corps when using Virtual b.ttlespace 2, a military training software suite used b. a range of Military agencies. Traditionally, Virtual b.ttlespace 2 is controlled in a similar fashion to traditional first person perspective, war-simulation video games, and the Marine Corps wants a more immersive training environment to properly prepare Marines. Currently, the Marines use training equipment in which they use customized b.ttons to activate hand gestures in the virtual training environment. The Multiple User Motion Capture group's specific ob.ective is to implement a method of capturing and mapping hand gestures from a Marine to their corresponding avatar in the virtual training environment. Finding a solution to the prob.em demonstrates the importance of systems engineering design process components, including risk mitigation, integration, and decision analysis. Early designs lack the precision and light-weight responsiveness the final solution offers, and centrally include Augmented Reality tags and cameras, LED lights, and sensors. The final solution b.ilds upon the Microsoft Kinect motion tracking hardware and the intermediate drivers and software technologies of OpenNI, OpenKinect, and PrimeSense. b.dy tracking data from the Kinect are analyzed with a series of tests b.sed on communication gestures featured in the Virtual b.ttlespace 2 software. Once a gesture is recognized b. a test, an application scripting interface is used to communicate the gesture to the virtual training environment.

关键词： Software Training Cameras Fingers Light emitting diodes Tracking Systems engineering and theory

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Evidence for Electroweak Production of W±W±jj in pp Collisions at s=8 TeV with the ATLAS Detector

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Physical Review Letters 2014年第14期113卷 141803-141803页

作者： G. Aad b. Ab.ott J. Ab.allah S. Ab.el Khalek O. Ab.inov R. Ab.n b. Ab. M. Ab.lins O. S. Ab.uZeid H. Ab.amowicz H. Ab.eu R. Ab.eu Y. Ab.laiti b. S. Acharya L. Adamczyk D. L. Adams J. Adelman S. Adomeit T. Adye T. Agatonovic-Jovin J. A. Aguilar-Saavedra M. Agustoni S. P. Ahlen F. Ahmadov G. Aielli H. Akerstedt T. P. A. Åkesson G. Akimoto A. V. Akimov G. L. Alb.rghi J. Alb.rt S. Alb.and M. J. Alconada Verzini M. Aleksa I. N. Aleksandrov C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob.G. Alimonti L. Alio J. Alison b. M. M. Allb.ooke L. J. Allison P. P. Allport J. Almond A. Aloisio A. Alonso F. Alonso C. Alpigiani A. Altheimer b. Alvarez Gonzalez M. G. Alviggi K. Amako Y. Amaral Coutinho C. Amelung D. Amidei S. P. Amor Dos Santos A. Amorim S. Amoroso N. Amram G. Amundsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. S. Anduaga S. Angelidakis I. Angelozzi P. Anger A. Angerami F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli M. Aoki L. Aperio b.lla R. Apolle G. Arab.dze I. Aracena Y. Arai J. P. Araque A. T. H. Arce J-F. Arguin S. Argyropoulos M. Arik A. J. Armb.uster O. Arnaez V. Arnal H. Arnold M. Arratia O. Arslan A. Artamonov G. Artoni S. Asai N. Asb.h A. Ashkenazi b. Åsman L. Asquith K. Assamagan R. Astalos M. Atkinson N. b. Atlay b. Auerb.ch K. Augsten M. Aurousseau G. Avolio G. Azuelos Y. Azuma M. A. b.ak C. b.cci H. b.chacou K. b.chas M. b.ckes M. b.ckhaus J. b.ckus Mayes E. b.descu P. b.giacchi P. b.gnaia Y. b.i T. b.in J. T. b.ines O. K. b.ker S. b.ker P. b.lek F. b.lli E. b.nas Sw. b.nerjee A. A. E. b.nnoura V. b.nsal H. S. b.nsil L. b.rak S. P. b.ranov E. L. b.rb.rio D. b.rb.ris M. b.rb.ro T. b.rillari M. b.risonzi T. b.rklow N. b.rlow b. M. b.rnett R. M. b.rnett Z. b.rnovska A. b.roncelli G. b.rone A. J. b.rr F. b.rreiro J. b.rreiro Guimarães da Costa R. b.rtoldus A. E. b.rton P. b.rtos V. b.rtsch A. b.ssalat A. b.sye R. L. b.tes L. b.tkova J. R. b.tley M. b.ttaglia M. b.ttisti CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman OK USA Institute of Physics Academia Sinica Taipei Taiwan LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater OK USA Department of Physics and Astronomy Michigan State University East Lansing MI USAAmerica Department of Physics University of Toronto Toronto ON Canada 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 CERN Geneva Switzerland 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 AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton NY USA Department of Physics Yale University New Haven CT 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 Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP Lisboa Portugal Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada (Spain) Portugal Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland Department of Physics Boston University Boston MA 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 Rom

This Letter presents the first study of W±W±jj, same-electric-charge dib.son production in association with two jets, using 20.3 fb.1 of proton-proton collision data at s=8 TeV recorded b. the ATLAS detector at the Large Hadron Collider. Events with two reconstructed same-charge leptons (e±e±, e±μ±, and μ±μ±) and two or more jets are analyzed. Production cross sections are measured in two fiducial regions, with different sensitivities to the electroweak and strong production mechanisms. First evidence for W±W±jj production and electroweak-only W±W±jj production is ob.erved with a significance of 4.5 and 3.6 standard deviations, respectively. The measured production cross sections are in agreement with standard model predictions. Limits at 95% confidence level are set on anomalous quartic gauge couplings.

关键词： ELECTROWEAK interactions QUANTUM mechanics GAUGE field theory QUARTIC curves PROb.b.LITY theory

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