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IEEE International Symposim on High Assurance systems Engineering

作者： E. Nett M. Gergeleit M. Mock Distributed Systems Institute IVS Otto von Guericke Universität Magdeburg Germany Institute for Autonomous intelligent Systems GMD-German National Research Center of Information Technology Germany

The final objective of the described project is to develop and implement techniques for a reliable cooperation of autonomous mobile systems that can be used for future traffic management systems. The approach relies on the ability of the systems to communicate among themselves in order to make efficient use of available shared resources (e.g. road space). In the context of automotives this means that computer-based driving assistants not only support humans in handling their own vehicles but also in interacting with the individual vehicles in the neighborhood The vision is an embedded, distributed traffic control system that is provided by the cooperation of the participating units, and thus is more robust and scalable than centralized approaches. Besides the 'obvious' requirements on high assurance computing in traffic control systems, the design and implementation of such systems require the ability of coordination while obeying the necessary real-time and safety constraints. This paper motivates the approach, presents an envisaged system architecture and sketches the design of the basic communication layers of this architecture that can fulfill the realtime and safety requirements. Finally, it introduces a lab-scale evaluation and demonstration scenario that proves the feasibility of the concepts.

关键词： Vehicle driving Traffic control Safety Computer architecture Remotely operated vehicles Project management Roads Context Automotive engineering Computer vision

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Meticulous rough inclusion and its relations to fuzzy inclusion

Meticulous rough inclusion and its relations to fuzzy inclus...

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IEEE International Conference on Fuzzy systems (FUZZ-IEEE)

作者： M. Inuiguchi L. Polkowski Department Electron. & Information Systems Graduate School of Engineering Osaka University Suita Osaka Japan Robotics & Multi-Agent Systems Polish Japanese Institute of Information Technology Warsaw Poland

We discuss a special kind of rough inclusions and its relation to fuzzy inclusions. One of four conditions of rough inclusions is detailed and a rough inclusion which satisfies the detailed condition as well as an additional condition is called a 'meticulous rough inclusion'. We show that a meticulous rough inclusion is closed with respect to upper and lower closure operators defined for a rough inclusion. We discuss conditions for a rough inclusion to be a meticulous rough inclusion. Moreover, the relations between meticulous rough inclusions and fuzzy inclusions are investigated. Sufficient conditions for a fuzzy inclusion defined by an implication function to be a meticulous rough inclusion are given. Examples of fuzzy inclusions which are meticulous rough inclusions are presented.

关键词： Fuzzy sets Fuzzy set theory Fuzzy systems Electrons Sufficient conditions Rough sets Uncertainty Frequency Fuzzy reasoning Robots

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Dynamic trading strategy learning model using learning classifier systems

Dynamic trading strategy learning model using learning class...

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Congress on Evolutionary Computation

作者： Pen-Yang Liao Jiah-Shing Chen Department of Information Management Overseas Chinese Institute of Technology Taichung Taiwan Intelligent Information Systems Laboratory Department of Information Management National Central University Chungli Taiwan

ISBN: (纸本)0780366573

Current trading strategy learning models often proceed in three separate phases, i.e., training, validation, and application (testing). After a specific time span of application, a new learning process is started to adapt the trading strategy to the new environment states. The time span of application is usually fixed and determined according to experiences. This may result in earning losses as compared to the perfect trading strategy which trades at each turning point of the stock price movement. Some learning methods, such as neural networks, are hard to explain intuitively and unstable in some dynamic environment states. Other learning models like simple genetic algorithms result in a single trading rule which is applied for a specific time span without being adapted even when the environment has changed. This paper adopts learning classifier systems (LCSs) technique to provide a dynamic trading strategy learning model (DTSLM), which makes continuous and instant learning while executing real prediction and produces a trading rule set to deal with different environment states. The simulation results show that this model could get a remarkable trading profit.

关键词： Security Predictive models information management Turning Learning systems Investments Management training System testing Neural networks Genetics

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Learning relational rule from examples that are neither positive nor negative

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systems and Computers in Japan 2001年第14期32卷 34-40页

作者： Ichise, Ryutaro Numao, Masayuki Knowledge Systems Research Intelligent Systems Research Division National Institute of Informatics Tokyo 101-8430 Japan Department of Computer Science Graduate School of Information Science and Engineering Tokyo Institute of Technology Tokyo 152-8552 Japan

Over the past decade, several inductive logic programming (ILP) systems have been developed. However, the normal ILP system does not have enough power to induce logic programs in some domains. Therefore, various new ILP systems, such as nonmonotonic ILP, that apply new learning tasks, have been proposed. In the present paper, a new learning task, called relational learning from nondichotomizable examples, is proposed for relational domains. The scheme of this task is similar to that of normal ILP, with the exception of the training examples. Normally, conventional ILP uses positive and negative examples in the training process. However, the examples of the proposed learning task are not strictly positive or negative: the training examples have a continuous scale. This new learning task is defined and a new method for learning this task is proposed. A new ILP system, SYNGIP (for SYNthesized system using Genetic programming and Inductive logic Programming), is developed based on this method and the performance of SYNGIP is compared experimentally to that of the conventional ILP method for the task of human feeling acquisition. © 2001 Scripta Technica, Syst. Comp. Jpn.

关键词： Logic programming

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Robust localization using context in omnidirectional imaging

Robust localization using context in omnidirectional imaging

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IEEE International Conference on robotics and Automation (ICRA)

作者： L. Paletta S. Frintrop J. Hertzberg Joanneum Research Institute of Digital Image Processing Graz Austria GMD-National Research Center for Information Technology Institute for Autonomous intelligent Systems Sankt Augustin Germany

ISBN: (纸本)0780365763

This work presents the concept to recover and utilize the visual context in panoramic images. Omnidirectional imaging has become recently an efficient basis for robot navigation. The proposed Bayesian reasoning over local image appearances enables to reject false hypotheses which do not fit the structural constraints in corresponding feature trajectories. The methodology is proved with real image data from an office robot to dramatically increase the localization performance in the presence of severe occlusion effects, particularly in noisy environments, and to recover rotational information on the fly.

关键词： Robustness Bayesian methods Mobile robots Working environment noise Solid modeling Sonar navigation Biological system modeling Robot sensing systems Robot vision systems Cameras

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Planar motion steering of underwater vehicles by exploiting drag coefficient modulation

Planar motion steering of underwater vehicles by exploiting ...

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IEEE International Conference on robotics and Automation (ICRA)

作者： M. Aicardi G. Casalino G. Indiveri Department of Communications Computerand Systems Sicence University of Genoa Genoa Italy Institute for Autonomous Intelligent Systems German National Research Center for Information Technology (GMD) Sankt Augustin Germany

ISBN: (纸本)0780365763

An underwater planar vehicle, actuated by rear thrusters and equipped with longitudinal control surfaces which allow the drag coefficient modulation in the sway direction, is considered in a dynamic setting. The maneuvring controls for the vehicle, in order to reach the required final position and attitude are devised by exploiting both the rear thrusters actuation and the capability offered by the admitted presence of the longitudinal, modulable, control surfaces.

关键词： Underwater vehicles Marine vehicles Vehicle dynamics Attitude control Velocity control Motion control Control systems Linear systems Trajectory Communication system control

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Fuzzy model approximation and its SVD reduction 6

Fuzzy model approximation and its SVD reduction

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6th European Control Conference, ECC 2001

作者： Baranyi, P. Lopez-Toribio, C.J. Varkonyi-Koczy, A. Patton, R.J. Research Group of Hungarian Academy of Sciences and Information System Department Gifu Research Institute of Manufacturing Information Technology 4-179-1 Sue Kakamigahara Gifu509-0108 Japan Control and Intelligent Systems Engineering Research Group School of Engineering University of Hull Cottingham Road HullHU6 7RX United Kingdom Dept. of Measurement and Information Systems Technical University of Budapest Muegyetem rkp. 9 BudapestH-1521 Hungary

ISBN: (纸本)9783952417362

This paper is concerned with the argument that the identification of Takagi Sugeno (T-S) fuzzy models from training data should involve an important feature between data fitness and model complexity. One hand a (T-S) fuzzy model with a large number of fuzzy rules may encounter the risk of having an approximation capable of fitting training data well. On the other hand it may be difficult to run this fuzzy model structure due to heavy computational cost. In order to facilitate the development of a balance between these requirements, a Higher Order Singular Value Decomposition (HOSVD) based T-S fuzzy model reduction is introduced using the well-known Yam SVD fuzzy rule-based approximation technique. © 2001 EUCA.

关键词： Singular value decomposition

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Fuzzy model approximation and its SVD reduction

Fuzzy model approximation and its SVD reduction

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European Control Conference (ECC)

作者： P Baranyi C J Lopez-Toribio A Varkonyi-Koczy R J Patton Research Group Gifu Research Institute of Manufacturing Information technology Japan Control & Intelligent Systems Engineering Research Group University of Hull UK Dept. of Measurement and Information Systems Technical University of Budapest Budapest Hungary

关键词： Mathematical model Complexity theory Computational modeling Observers Induction motors Approximation methods

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Overview of robocup-2000

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4th Robot World Cup Soccer Games and Conferences, RoboCup 2000

作者： Stone, Peter Asada, Minoru Balch, Tucker Fujita, Masahiro Kraetzschmar, Gerhard Lund, Henrik Scerri, Paul Tadokoro, Satoshi Wyeth, Gordon ATandT Labs - Research 180 Park Ave Florham ParkNJ United States Adaptive Machine Systems Osaka University Osaka Japan The Robotics Institute Carnegie Mellon University PittsburghPA United States Sony Corp Tokyo Japan Neural Information Processing University of Ulm Ulm Germany Institute for Production Technology University of Southern Denmark Denmark Computer Science Linköping University Linköping Sweden Computer and Systems Engineering Kobe University Kobe Japan Computer Science and Electrical Engineering University of Queensland QLD Australia

ISBN: (纸本)3540421858

The Fourth Robotic Soccer World Championships was held from August 27th to September 3rd, 2000, at the Melbourne Exhibition Center in Melbourne, Australia. In total, 83 teams, consisting of about 500 people, participated in RoboCup-2000 and about 5,000 spectators watched the events. RoboCup-2000 showed dramatic improvement over past years in each of the existing robotic soccer leagues (legged, smallsize, mid-size, and simulation), while introducing RoboCup Jr. competitions and RoboCup Rescue and Humanoid demonstration events. The RoboCup Workshop, held in conjunction with the championships, provided a forum for exchange of ideas and experiences among the diffierent leagues. This article summarizes the advances seen at RoboCup-2000, including reports from the championship teams and overviews of all the RoboCup events. © Springer-Verlag Berlin Heidelberg 2001.

关键词： robotics

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GUEST EDITORS' INTRODUCTION

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Advances in Complex systems 2001年第1期4卷 1-2页

作者： FRANK SCHWEITZER DIRK HELBING Institute for Autonomous Intelligent Systems German National Research Center for Information Technology Schloss Birlinghoven D-53754 Sankt Augustin Germany Institute of Physics Humboldt University of Berlin Invalidenstr. 110 D-10115 Berlin Germany Institute for Economics and Traffic Dresden University of Technology D-01062 Dresden Germany Institute for Theoretical Physics University of Stuttgart Pfaffenwaldring 57/III D-70550 Stuttgart Germany

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