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International Parallel and Distributed Processing Symposium, IPDPS 2003

作者： De Toro, F. Ortega, J. Paechter, B. Electronic and Computer Science Department University of Huelva Spain Computer Architecture and Technology Department University of Granada Spain Computer Science Department Napier University United Kingdom

ISBN: (纸本)0769519261

In this paper a performance analysis in a cluster system of the parallel single front genetic algorithm (PSFGA) is carried out. The PSFGA is a parallel evolutionary optimizer for multiobjective problems that use a structured population in the form of a set of islands. The SFGA, an elitist evolutionary algorithm with a clearing procedure that uses a grid in the objective space for diversity maintaining purposes, is performed on each subpopulation (island) associated to a different area in the search space. Experimental results show that PSFGA outperforms SFGA and SPEA (strength Pareto evolutionary algorithm) in the cases studied. © 2003 IEEE.

关键词： Genetic algorithms

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Parallel single front genetic algorithm: performance analysis in a cluster system

Parallel single front genetic algorithm: performance analysi...

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International Symposium on Parallel and Distributed Processing (IPDPS)

作者： F. De Toro J. Ortega B. Paechter Electronic and Computer Science Department University of Huelva Spain Computer Architecture and Technology Department University of Granada Spain Computer Science Department Napier University UK

关键词： Genetic algorithms Performance analysis Evolutionary computation Constraint optimization computer science computer architecture Dissolved gas analysis Art Distributed processing

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Learning semi naïve bayes structures by estimation of distribution algorithms

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2003年 2902卷 224-258页

作者： Robles, V. Larrañaga, P. Peña, J.M. Pérez, M.S. Menasalvas, E. Herves, V. Department of Computer Architecture and Technology Technical University of Madrid Madrid Spain Department of Computer Science and Artificial Intelligence University of the Basque Country San Sebastián Spain

Recent work in supervised learning has shown that a surprisingly simple Bayesian classifier called naïve Bayes is competitive with state of the art classifiers. This simple approach stands from assumptions of conditional independence among features given the class. Improvements in accuracy of naïve Bayes has been demonstrated by a number of approaches, collectively named semi naïve Bayes classifiers. Semi naïve Bayes classifiers are usually based on the search of specific values or structures. The learning process of these classifiers is usually based on greedy search algorithms. In this paper we propose to learn these semi naïve Bayes structures through estimation of distribution algorithms, which are non-deterministic, stochastic heuristic search strategies. Experimental tests have been done with 21 data sets from the UCI repository. © Springer-Verlag Berlin Heidelberg 2003.

关键词： Heuristic algorithms

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Performance Analysis for Dispensing Mechanism of Active Code

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International Journal of Plant Engineering and Management 2003年第1期8卷 28-34页

作者： WANG Jian-guo LI Zeng-zhi KOU Yan-an Department of Computer Science and Engineering Xi'an Institute of TechnologyXi'an 710032P.R.China Institute of Computer Architecture&Network Xi'an Jiaotong UniversityXi'an 710049P.R.China Air Force Engineering University Xi'an 710038P.R.China

The dispensing mechanism of active code is a key technology in an active network. Conventional capsule and programmable switch approaches have their own shortcomings. The DCCAN(distributed code caching for active network) mechanism presented in this paper overcomes these shortcomings. In this paper, capsule and programmable switch approaches are introduced, and their shortcomings are analyzed. The principle of the DCCAN mechanism is described. The theory analysis in transmit width based on the DCCAN mechanism and capsule approach are described. The theory analysis shows that the DCCAN mechanism has many good characteristics and can improve the efficiency of an active network. Key factors which affect the transmit width based on the DCCAN mechanism are discussed. The using condition of the DCCAN mechanism is also discussed.

关键词： DCCAN active code capsule programmable switch transmit width

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Macaroni synthesis: A creative multimedia collaboration

Macaroni synthesis: A creative multimedia collaboration

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International Conference on Information Visualisation (IV)

作者： E. Edmonds L. Candy M. Fell R. Knott A. Weakley Creativity and Cognition Studios University of Technology Sydney NSW Australia Key Centre of Design Computing and Cognition School of Architecture Design Sciences and Planning University of Sydney NSW Australia Creativity and Cognition Studios Department of Computer Science Loughborough University UK

We describe a collaborative project between an HCI team and an internationally known Japanese artist, based in New York, who was artist-in-residence with the group in the UK. The collaboration resulted in a new performance art work and a new interactive instrument. The research included a full study of the process of collaboration and innovation. We describe the work that was created, the interactive instrument developed and illustrates its use in a performance.

关键词： Art Collaborative work Cognition International collaboration Technological innovation computer science Instruments Application software Multimedia computing Paper technology

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Adaptations to the embedded controls engineering curriculum in switzerland

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IFAC Proceedings Volumes 2003年第12期36卷 49-51页

作者： Thomas Müller Max Felser Zurich University of Applied Sciences Winterthur (ZHW) Department of Technology Computer Science and Natural Science Technikumstrasse 9 CH - 8401 Winterthur (SWITZERLAND) T. ++41 - 52 - 267 75 09. F. ++41 - 52 - 268 75 09 Bern Institute of Engineering and Architecture. Bern University of Applied Sciences Morgartenstrasse 2c CH-3014 Bern (SWITZERLAND) T. ++41-31-33 55-237 F. ++41-31-33 30-625

The technical and political requirements for the control-engineer curriculum changes all the time. In Switzerland new research institutes based on UAS are started with governmental support. This paper presents the env... 详细信息

关键词： Education Fieldbus Ethemet Embedded systems

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Opposites attract: Complementary phenotype selection for crossover in genetic programming 7th

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7th International Conference on Parallel Problem Solving from Nature, PPSN 2002

作者： Dolin, Brad Arenas, M.G. Merelo, J.J. Computer Science Department Stanford University StanfordCA94305 United States Department of Architecture and Computer Technology University of Granada GranadaCP 18071 Spain

ISBN: (纸本)3540441395

Standard crossover in genetic programming (GP) selects two parents independently, based on fitness, and swaps randomly chosen portions of genetic material (subtrees). The mechanism by which the crossover operator achieves success in GP, and even whether crossover does in fact exhibit relative success compared to other operators such as mutation, is anything but clear [14]. An intuitive explanation for successful crossover would be that the operator produces fit offspring by combining the "strengths" of each parent. However, standard selection schemes choose each parent independently of the other, and with regard to overall fitness rather than more specific phenotypic traits. We present an algorithm for choosing parents which have complementary performance on a set of fitness cases, with an eye toward enabling the crossover operator to produce offspring which combine the distinct strengths of each parent. We test Complementary Phenotype Selection in three genetic programming domains: Boolean 6-Multiplexer, Intertwined Spirals Classification, and Sunspot Prediction. We demonstrate significant performance gains over the control methods in all of them and present a preliminary analysis of these results. © Springer-Verlag Berlin Heidelberg 2002.

关键词： Genetic programming

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Human systems integration and advanced technology in engineering department workload and manpower reduction

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NAVAL ENGINEERS JOURNAL 2003年第1期115卷 57-65页

作者： Lively, KA Seman, AJ Kirkpatrick, M KENNETH A. LIVELY graduated from the University of Colorado with a BS in applied mathematics and an MS in mathematics in 1976 and from the Massachusetts Institute of Technology with an MS in electrical engineering and the degree ocean engineer in naval architecture and marine engineering in 1984. He retired from the U.S. Navy in 1989 after 23 years of service. Assignments included electrical officer on the USS Constellation (CV 64) project engineer for the DDG 51 machinery control system (NAVSEA) and DDG 51 Technical Director (NAVSEA). He was vice president of the PDI Division of Bird-Johnson Company from July 1989 to November 1998 where he managed various gas turbine and machinery controls related development projects. He joined Anteon Corporation's Systems Engineering Group as senior controls engineer in December 1998 where he provided technical support to the integrated power systems program (NAVSEA PMS 510) and managed the Office of Naval Research Afloat Laboratory. DR. MARK KIRKPATRICK is currently an independent consultant in human factors and work-load/manning analysis and modeling. He holds a Ph.D. degree in experimental psychology from The Ohio State University and has 34 years of experience in applied human factors. From 1982 through 2000 Dr. Kirkpatrick served as the senior vice president of Carlow International. Prior to joining Carlow in 1982 Dr. Kirkpatrick served as a member of the technical staff at North American Rockwell's Missiles Division and as a project director and vice president for Essex Corporation. His areas of expertise include workload simulation task analysis operator-in-the-loop simulation human performance experimentation statistical analysis and human factors T&E. He has directed and/or participated in human factors projects for the U.S. Navy U.S. Army NASA Department of Transportation the U.S. Nuclear Regulatory Commission and private industry. ANTHONY J. SEMAN III is the technical manager for the reduced ship's crew by virtual presence (RSVP) advanced technology d

Aboard current ships, such as the DDG 51, engineering control and damage control activities are manpower intensive. It is anticipated that, for future combatants, the workload demand arising from operation of systems under conditions of normal steaming and during casualty response will need to be markedly reduced via automated monitoring, autonomous control, and other technology initiatives. Current DDG 51 class ships can be considered as a manpower baseline and under Condition III typical engineering control involves seven to eight watchstanders at manned stations in the Central Control Station, the engine rooms and other machinery spaces. In contrast to this manning level, initiatives such as DD 21 and the integrated engineering plant (IEP) envision a partnership between the operator and the automation system, with more and more of the operator's functions being shifted to the automation system as manning levels decrease. This paper describes some human systems integration studies of workload demand reduction and, consequently, manning reduction that can be achieved due to application of several advanced technology concepts. Advanced system concept studies in relation to workload demand are described and reviewed including. Piecemeal applications of diverse automation and remote control technology concepts to selected high driver tasks in current DDG 51 activities. Development of the reduced ship's crew by virtual presence system that will provide automated monitoring and display to operators of machinery health, compartment conditions, and personnel health. The IEP envisions the machinery control system as a provider of resources that are used by various consumers around the ship. Resource needs and consumer priorities are at all times dependent upon the ship's current mission and the availability of equipment pawnbrokers.

关键词： Naval warfare

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Optimisation of multilayer perceptrons using a distributed evolutionary algorithm with SOAP 7th

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7th International Conference on Parallel Problem Solving from Nature, PPSN 2002

作者： Castillo, P.A. Arenas, M.G. Castellano, J.G. Merelo, J.J. Rivas, V.M. Romero, G. Department of Architecture and Computer Technology University of Granada Campus de Fuentenueva GranadaE. 18071 Spain Department of Computer Science University of Jaén Avda. Madrid 35 JaénE. 23071 Spain

ISBN: (纸本)3540441395

SOAP (simple object access protocol) is a protocol that allows the access to remote objects independently of the computer architecture and the language. A client using SOAP can send or receive objects, or access remote object methods. Unlike other remote procedure call methods, like XML-RPC or RMI, SOAP can use many different transport types (for instance, it could be called as a CGI or as sockets). In this paper an approach to evolutionary distributed optimisation of multilayer perceptrons (MLP) using SOAP and language Perl has been done. Obtained results show that the parallel version of the developed programs obtains similar or better results using much less time than the sequential version, obtaining a good speedup. Also it can be shown that obtained results are better than those obtained by other authors using different methods. © Springer-Verlag Berlin Heidelberg 2002.

关键词： Network architecture

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PID-parameter auto-tuner based on embedded MCU

PID-parameter auto-tuner based on embedded MCU

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World Congress on Intelligent Control and Automation (WCICA)

作者： Chen Jie Sun Demin Xue Meisheng Department of Computer & Information Engineering Anhui of Architecture and Industry Hefei China Department of Automation University of Science and Technology Hefei China

This paper describes an algorithm of PID-parameter tuning with correlation-coefficient identification, which is applied in the auto-tuner of PID-parameters based on an embedded MCU. We have optimized the algorithm acc... 详细信息

关键词： Automation Sun Electronic mail Embedded computing computer architecture computer industry Microcontrollers

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