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International Conference on Electrical Machines and systems 2007(ICEMS2007)(第十届国际电机与系统会议)

作者： Amirabbas Akhavanhejazi Teimoor Ghanbari Ahmad Darabi Hamid Lesani Faculty of Electrical and Robotic Engineering Shahrood University of Technology Iran Control and Intelligent System Faculty of Electrical & Computer Engineering University of Tehran

In this paper, calculation of electrical equivalent circuit parameters versus design parameters of high frequency disk-type hysteresis motors are presented in details for steady state operating conditions. It is demonstrated that some of the equivalent circuit parameters alter significantly with input voltage and for different operating conditions. Therefore an equivalent circuit with fixed elements may give an inaccurate prediction of the steady state performance of a machine in many circumstances. Furthermore in this paper for a disk-type hysteresis motor which is designed and manufactured by use of variable parameter model, a sensitivity analysis is presented and influences of some design parameters on machine performances are discussed.

关键词： Hysteresis Motor Disk-Type Modeling,Equivalent Circuit Variable Parameters Sensitivity Analysis.

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Robot localization system based on 2D-color vision sensor

Robot localization system based on 2D-color vision sensor

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4th International Symposium on Autonomous Minirobots for Research and Edutainment, AMiRE 2007

作者： Ebied, H.M. Witkowski, U. Monier, E. Rückert, U. Abdel-Wahab, M.S. System and Circuit Technology Heinz Nixdorf Institute Paderborn University Fürstenallee 11 33102 Paderborn Germany Faculty of Computer and Information Sciences Ain Shames University Cairo Egypt International Graduate School of Dynamic Intelligent Systems University of Paderborn Germany

In this paper, a vision based localization is described. Mobile robots must be able to determine their own position to operate successfully in any environments. The Simultaneous Localization and Mapping (SLAM) problem is the key problem for any autonomous mobile robot. We will consider the positioning system of the autonomous minirobot Khepera II. The system uses different colored cylinder landmarks which are positioned at the corners of the environment. This paper describes development of an analytical model to calculate the robot's position based on a parameter set and the knowledge of the positions of landmarks. By using 2D vision, the robot is able to identify colored landmarks and to extract the centre of each landmark.

关键词： Object detection

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Analysis by Synthesis of an Information Presentation Method of Embodied Agent Based on the Time Lag Effects of Utterance to Communicative Actions

Analysis by Synthesis of an Information Presentation Method ...

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IEEE International Workshop on Robot and Human Communication (ROMAN)

作者： Michiya Yamamoto Tomio Watanabe Faculty of Computer Science and System Engineering Okayama Prefectural University Okayama Japan CREST Japan Science and Technology Corporation Japan

The lag effects of utterance to communicative motions in human-robot and in human-CG character greeting interaction have been clarified. In this paper, information presentation timing by an agent based on the time lag effects of utterance to communicative action is analyzed by synthesis for applying to a human-agent interaction support. First, the analysis of a human information presentation action clarifies the average pause and average time delay of utterance. Then, the analysis by synthesis is performed by using an agent of CG character and confirms that the lags of utterance in certain information presentation timing bring communication effects, i.e. the moderate lag is familiar and the longer lag is polite. It is also clarified that it is unnatural to start motions and utterance simultaneously in human-agent interaction. These results demonstrate the importance of timing in human-to-agent embodied interaction and the method to perform an information presentation effectively.

关键词： Information analysis Character generation Timing Performance analysis Human robot interaction Motion analysis Robot sensing systems computer science systems engineering and theory Delay effects

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Human-Entrained Embodied Interaction and Communication technology for Advanced Media Society

Human-Entrained Embodied Interaction and Communication Techn...

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IEEE International Workshop on Robot and Human Communication (ROMAN)

作者： Tomio Watanabe Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Okayama Japan CREST Japan Science and Technology Agency Japan

The embodied communication system for mind connection (E-COSMIC) has been developed by applying the entrainment mechanism of the embodied rhythms of nodding and body movements to physical robots and CG characters in verbal communication. E-COSMIC comprises an embodied virtual communication system for human interaction analysis by synthesis and a speech-driven embodied interaction system for supporting essential human interaction and communication based on the analysis that uses the embodied virtual communication system. A human-entrained embodied interaction and communication technology for an advanced media society is introduced through some applications of E-COSMIC. A generation and control technology of human entrained embodied media is also introduced.

关键词： Communications technology Human robot interaction Rhythm Speech analysis Character generation Speech synthesis Communication system control Heart rate variability Magnetic heads Societies

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Parallel Algorithm for Finding the Minimum Edges to Make a Disconnected Directed Acyclic Graph Strongly Connected

Parallel Algorithm for Finding the Minimum Edges to Make a D...

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International Conference on Innovative Computing, Information and Control (ICICIC)

作者： Tsuyoshi Itokawa Akio Tada Masahiro Migita Computer Science and Electrical Engineering Graduate School of Science and Technology Kumamoto University Japan Department of Computer System Technology Faculty of Computer and Information Sciences Sojo University Japan Center for Multimedia and Information Technologies Kumamoto University Japan

A problem to make a graph strongly connected is one of the most fundamental problems in graph theory. The known parallel algorithm solves this problem in O(log n) time using O(n 3 ) processors on a CRCW PRAM model. In this paper we present a parallel algorithm to find the minimum edges to make a disconnected directed acyclic graph strongly connected in O(log(m + n)) time using O(m + n) processors on a CREW PRAM model. This algorithm is an efficient parallel algorithm because the number of processors varies according to the density of the given graph.

关键词： Parallel algorithms Phase change random access memory Concurrent computing Graph theory computer science Multimedia systems Information technology Computational modeling Broadcasting Writing

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Integrating Uncomfortable Intersection-Turns to Subjectively Optimal Route Selection Using Genetic Algorithm

Integrating Uncomfortable Intersection-Turns to Subjectively...

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International Conference on Computational Cybernetics (ICCC)

作者： Yasushi Kambayashi Yasuhiro Tsujimura Hidemi Yamachi Hisashi Yamamoto Department of Computer and Information Engineering Nippon Institute of Technology Saitama Japan Faculty of System Design Tokyo Metropolitan University Hino Tokyo Japan

Route selection is one of the most important problems for a car navigation system. Given a pair of origin and destination, there are many possible routes. Most current car navigation systems propose the shortest path from the origin to the destination. Selecting the shortest path is not a hard problem, but the shortest path is not always what the user wants; what the user really wants to have is the most comfortable route for him or her to drive. In other words, the driver wants to have a car navigation system to propose the subjectively optimal route for him or her. Finding such a route requires enumerating all the possible routes, and is known as a NP-hard problem. In order to reduce computational complexity, we have employed a GA to find a (subjectively) quasi optimal route for the driver. In this paper, we report our attempt to integrate uncomfortable-turns in to the conditions of our GA-based route selection algorithm. The numerical experiments demonstrate the feasibility of our GA-based route selection method.

关键词： Genetic algorithms Navigation Genetic engineering Design engineering Roads Cities and towns NP-hard problem Computational complexity Polynomials computer aided instruction

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Guest editorial

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The Visual computer 2007年第7期23卷 451-452页

作者： Gutierrez, Diego Shamsuddin, Siti Mariyam CPS (Edificio Ada Byron) Universidad de Zaragoza Zaragoza Spain Department of Graphics and Multimedia Faculty of Computer Science and Information System University Technology of Malaysia Skudai Malaysia

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An Embodied Avatar Mediated Communication system with VirtualActor for Human Interaction Analysis

An Embodied Avatar Mediated Communication System with Virtua...

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IEEE International Workshop on Robot and Human Communication (ROMAN)

作者： Yutaka Ishii Tomio Watanabe Information Science and Technology Center Kobe University Hyogo Japan Faculty of Computer Science and System Engineering Science and Technology Okayama Prefectural University CREST of Japan Science and Technology Agency Okayama Japan

We have developed an embodied avatar mediated communication system by using a human avatar called the 'VirtualActor' and an abstract avatar called the 'VirtualWave' within the same communication space. VirtualActor is a CG character based on a talker's embodied information in the virtual space. The self-referable avatar's motion is consistent with the talker's conscious behavior and unconscious communication rhythms of the body, w hich are measured using sensors. This paper show s the effect of embodied avatar mediated communication for remote talkers in a communication experiment in which the head motion of the listener's VirtualActor is stopped inconsistently. And we propose the concept of the embodied avatar called the 'PuppetAvatar' based on the talker's hand motion and the prototype of the system by using the glove sensor or trackball is developed.

关键词： Avatars Information analysis Face Speech analysis Motion analysis Prototypes Character generation Heart rate variability Human robot interaction Information science

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Erratum to “Development and illustrative outputs of the Community Integrated Assessment system (CIAS), a multi-institutional modular integrated assessment approach for modelling climate change” [Environ Model Softw 23(5) (2008) 592–610]

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Environmental Modelling & Software 2008年第9期23卷 1215-1216页

作者： R. Warren S. de la Nava Santos N.W. Arnell M. Bane T. Barker C. Barton R. Ford H.-M. Füssel Robin K.S. Hankin J. Hinkel Rupert Klein C. Linstead J. Kohler T.D. Mitchell T.J. Osborn H. Pan S.C.B. Raper G. Riley D. Anderson Tyndall Centre School of Environmental Sciences University of East Anglia Norwich NR4 7TJ UK Cambridge Centre for Climate Change Mitigation Research (4CMR) Department of Land Economy University of Cambridge 19 Sliver Street Cambridge CB3 9EP UK Walker Institute for Climate System Research University of Reading Reading RG6 6BB UK Centre for Novel Computing School of Computer Science University of Manchester Oxford Road Manchester M13 9PL UK Centre for Atmospheric Science School of Earth Atmospheric & Environmental Sciences (SEAES) University of Manchester M13 9PL UK Potsdam Institute for Climate Impact Research (PIK) Telegrafenberg D-14473 Potsdam Germany National Oceanography Centre European Way Southampton SO14 3ZH UK Climate Research Unit School of Environmental Sciences University of East Anglia Norwich NR4 7T UK Faculty of Economics University of Cambridge Sidgwick Avenue Cambridge CB3 9DD UK Centre for Air Transport and the Environment Dalton Research Institute Manchester Metropolitan University Chester Street Manchester M1 5GD UK Imperial Centre for Energy Policy and Technology (ICEPT) Department of Environmental Science and Technology Imperial College Prince Consort Road London SW7 2BP UK

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Reduced-Order Proper H_(infinity) Controllers for Descriptor systems: Existence Conditions and LMI-Based Design Algorithms

Reduced-Order Proper H_(infinity) Controllers for Descriptor...

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Proceedings of the 46th IEEE Conference on Decision and Control, Pages 3220-3677

作者： Xin Xin Shinji Hara Masahiro Kaneda Department of Communication Engineering Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Okayama Japan Department of Information Physics and Computing Graduate School of Information Science and Technology University of Tokyo Bunkyo Tokyo Japan

In this paper, we present a new approach to investigate the existence and design of reduced-order proper H_(infinity) controllers that provide the same level of performance as that of full-order controllers. By revealing some special features of the LMI-based solvability conditions for the H_(infinity) control problem for descriptor systems, we obtain a refined bound on the order of H_(infinity) controllers, which is independent of (invariant under the allowed transformations on) a descriptor realization of the generalized plant. Moreover, we provide two LMI-based algorithms to design the reduced-order controllers and demonstrate the validity of the presented theoretical results via two numerical examples. This paper not only extends in a satisfying way the results on reduced-order H_(infinity) controllers for state-space systems to descriptor systems, but also provides insight into the mechanism by which the order of H_(infinity) controllers for descriptor systems can be reduced through a consideration of the unstable finite zeros or infinite zeros.

关键词： Control systems Algorithm design and analysis USA Councils Application software computer science systems engineering and theory Physics computing Information science Filtering theory

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