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15th World Congress of the International Federation of Automatic Control, 2002

作者： Jing, Yuanwei Sohraby, Khosrow Dimirovski, Georgi M. Faculty of Information Science and Engineering Northeastern University Shenyang110006 China Computer Science Telecommunications University of Missouri - Kansas City Kansas CityMO64110 United States Faculty of Electrical Engineering St. Cyril and St. Methodius University SkopjeMK-91000 Macedonia

ISBN: (纸本)9783902661746

This work consider the problem of flow control using incentive strategy in Stackelberg game theory. The network model employed here is that users route their flows from a common source to a common destination node, each of them trying to optimize its individual performance objective. First, the existing Stackelberg routing strategy is briefly introduced. And then, the linear Stackelberg incentive strategies are presented for both single-follower and multi-follower systems, by which the leader (manager) force the followers (the noncooperative users) adopt the team optimal flow configuration as their reply strategies. It is shown that the incentive strategy improves the existing Stackelberg routing strategy. A numerical example is given to illustrate the results of the strategy. Copyright © 2002 IFAC.

关键词： Game theory

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PRINCIPAL CLUSTERS ANALYSIS: ANALYZING WEB NAVIGATION USING A MULTIVARIATE APPROACH

PRINCIPAL CLUSTERS ANALYSIS: ANALYZING WEB NAVIGATION USING ...

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International Conference on Information Systems, ICIS 2002

作者： Wu, Harris Gordon, Michael Demaagd, Kurt Fan, Weiguo Wu, Huijiang University of Michigan Business School Ann ArborMI United States Pamplin College of Business Virginia Polytechnic Institute and State University BlacksburgVA United States Faculty of Information Science and Engineering Northeastern University China Shenyang China

We present a new statistical approach, called principal clusters analysis, for analyzing millions of user navigations among Web documents. This technique can identify distinct clusters of related information on a given topic. In addition, it can determine which information items within a cluster are useful starting points to explore the topic of the cluster, as well as key documents within the cluster to explore the topic in greater detail. This technique should prove promising in addressing information overload and other knowledge management issues. © 2002, Association for Information Systems. All rights reserved.

关键词： Cluster analysis

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Fuzzy direct adaptive sliding mode control of interconnected large-scale systems

Fuzzy direct adaptive sliding mode control of interconnected...

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2002 IEEE International Conference on Systems, Man and Cybernetics

作者： Zhang, Yanxin Dimirovski, Georgi M. Jing, Yuanwei Zhang, Siying Institute of Control Science Faculty of Information Sci. and Eng. Northeastern University P.O. Box 321 Shenyang Liaoning 110004 China Department of Computer Engineering DOGUS University Faculty of Engineering Acibadem Zemaet Sk. 21 Kadikoy TR-81010 Istanbul Turkey ASE Institute Faculty of Electrical Engineering SS Cyril and Methodius University MK-1000 Skopje Macedonia

Fuzzy direct adaptive sliding mode control design for a class of interconnected large-scale nonlinear systems with unknown functions has been resolved. It makes use of the fuzzy control method via fuzzy logic approximation with fuzzy sliding mode control to approximate the ideal controller synthesised. Fuzzy sliding mode control is introduced to attenuate the fuzzy approximation errors. The (sub)system parameters are being regulated on-line by adaptive laws and stabilised by virtue of Lyapunov's second method applied.

关键词： Large scale systems

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Decomposition of complex linear systems via hierarchical similarity structure

Decomposition of complex linear systems via hierarchical sim...

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IEEE International Conference on Electronics, Circuits and Systems (ICECS)

作者： Y.-W. Jing G.M. Dimirovski J. Zhao M.J. Stankovski Institute of Control Science School of Information Science & Engineering Northeastern University Shenyang Liaoning China Institute of Automation & Systems Engineering Faculty of Electrical Engineering Ss Cyril and Methodius University Skopje Macedonia Department of Computer Engineering Faculty of Engineering Dogus University Istanbul Turkey

In this paper, the problem of system decomposition of complex linear dynamical systems, by exploiting the similarity property, is studied. System decompositions were sought in terms of similarity hierarchical structures. Three new theoretical results were proved. A method for constructing the transformation has been derived. The conditions for such decomposition of complex linear systems are given.

关键词： Linear systems Control systems Systems engineering and theory Design engineering Interconnected systems robots Automatic control Information science Automation Modems

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On complex non-linear systems with symmetries: controllability preserving decomposition

On complex non-linear systems with symmetries: controllabili...

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IEEE International Conference on Electronics, Circuits and Systems (ICECS)

作者： G.M. Dimirovski Y.-W. Jing J. Zhao T.D. Kolemisevska-Gugulovska Institute of Automation & Systems Engineering Faculty of Electrical Engineering Ss Cyril and Methodius University Skopje Macedonia Department of Computer Engineering Faculty of Engineering Dogus University Istanbul Turkey Institute of Control Science School of Information Science & Engineering Northeastern University Shenyang Liaoning China Institute of Automation & Systems Engineering Faculty of Electrical Engineering Ss Cyril and Methodius University Skopje Macedonia

In this paper, the problems of isomorphic decomposition and controllability of a class of nonlinear systems possessing symmetries, on the basis of quotient systems, is studied. The isomorphic decomposition formations of these systems are derived. Finally, it is shown that controllability of the original systems can be determined by that of the subsystems, which are obtained through isomorphic decomposition. The corresponding sufficient and necessary conditions are given. Two new theoretical results have been proved.

关键词： Controllability Nonlinear control systems Control systems Nonlinear systems Automatic control Information science Automation Systems engineering and theory Feedback Mathematical model

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INCENTIVE STACKELBERG STRATEGIES FOR FLOW CONFIGURATION OF PARALLEL NETWORKS

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IFAC Proceedings Volumes 2002年第1期35卷 413-418页

作者： Yuanwei Jing Khosrow Sohraby Georgi M. Dimirovski Faculty of Information Science and Engineering Northeastern University Shenyang 110006 P.R. China Computer Science Telecommunications University of Missouri - Kansas City Kansas City MO 64110 U.S.A. Faculty of Electrical Engineering St. Cyril and St. Methodius University Skopje MK-91000 R.Macedonia

关键词： Game Theory Parallel network Flow configuration Optimum Routing Stackelberg Strategy

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TRAFFIC CONTROL PROBLEMS FOR NETWORKS VIA INCENTIVE MODEL

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IFAC Proceedings Volumes 2002年第1期35卷 431-436页

作者： Yuanwei Jing Georgi M. Dimirovski Khosrow Sohraby Faculty of Information Science and Engineering Northeastern University Shenyang 110006 P.R.China Faculty of Electrical Engineering St. Cyril and St. Methodius University Skopje MK-91000 R.Macedonia Computer Science Telecommunications University of Missouri - Kansas City Kansas City MO 64110 U.S.A.

This paper deals with traffic rate control problems of networks. The incentive Stackelberg strategy concept was introduced to the networking model that comprises subsidiary systems of users and network. A linear strategy and a nonlinear strategy were proposed to the elastic traffic problem, with the illustrations via examples. The presented method was extended to non-elastic traffic problem.

关键词： Rate control Pricing Elastic traffic Non-elastic traffic Incentive Stackelberg strategy

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Nonlinear adaptive robust control of thyristor controlled series compensation

Nonlinear adaptive robust control of thyristor controlled se...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Wenlei Li Yuanwei Jing G.M. Dimirovshi Xiaoping Liu Faculty of Information Science & Engineering Northeastern University Shenyang Liaoning P. R. of China ASE Institute - Faculty of Electrical Engineering SS Cyril & Methodius University Skopje Republic of Macedonia Department of Computer Engineering DOGUS University Istanbul Republic of Turkey

The back-stepping design methodology of the math-analytical nonlinear control theory currently attracts considerable interests in many attempts of applied controls to various engineering systems, power systems being one of them. In this paper a novel nonlinear controller is designed using this methodology based on the nonlinear second-order model of single machine to infinite bus system with thyristor controlled series compensation (TCSC). Given the circumstances of indirectly measured damping coefficient being uncertainty inaccurate, a dynamic feedback controller has be designed using adaptive back-stepping method, which also encompasses the on-line real-time estimation of the uncertainty parameter. This way designed adaptive nonlinear controller is shown to possess superior performances and engineering implementation.

关键词： Programmable control Adaptive control Robust control Thyristors Nonlinear control systems Design methodology Design engineering Power system modeling Power system dynamics Control theory

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Control-Based Reduction of Pulsating Torque for PMAC Machines

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IEEE Power engineering Review 2002年第3期22卷 55-55页

作者： B. Grcar P. Cafuta G. Stumberger A. M. Stankovic Faculty of Electrical Engineering and Computer Science Marobor Slovenia Northeastern University Boston MA

Control methods in torque pulsating reduction for surface-mounted permanent magnet motors are discussed in this paper. The pulsating torque is a consequence of the nonsinusoidal flux-density distribution caused by the interaction of the rotor's permanent magnets with the changing stator reluctance. The proposed control method is estimator based. To assure parameter convergence Lyapunov's direct method is used in estimator design for the flux Fourier's coefficients. A novel nonlinear torque controller based on flux/torque estimate is introduced to reduce the influence of the flux harmonics. The influence of the cogging torque is considerably reduced at lower motor speed using the internal model principle and adaptive feedforward compensation technique. The overall control scheme and experimental results are also presented.

关键词： Torque control Predictive models Forging Computer science Permanent magnet motors Rotors Permanent magnets Stators Convergence Reluctance motors

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Hybrid leader-follower and fuzzy-Petri-net traffic rate control and supervision in network systems

Hybrid leader-follower and fuzzy-Petri-net traffic rate cont...

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5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, TELSIKS 2001

作者： Dimirovski, G.M. Jing, Yuanwei Zhang, Siying Dept. of Computer Engineering Faculty of Engineeing DOGUS University Zeamet Sk. 21 TR-81010 Kadikoy-Istanbul Turkey Institute of Automation and Systems Engg. Faculty of Electical Engineering Methodius University MK-1000 Skopje Macedonia Institute of Control Theory School of Information Science and Engineering Northeastern University Shenyang Liaoning 110006 China

ISBN: (纸本)078037228X

This paper addresses networking and traffic control problems in network systems along with the potential for introducing soft-computing applications at supervisory control level. The incentive Stackelberg strategy control concept was introduced to the networking model that comprises subsidiary systems of users and of network. A linear strategy is proposed for the elastic traffic problem, and results are demonstrated and illustrated via Kelly's (1997) example. The presented method is extended to the non-elastic traffic problem and results are also illustrated via a slightly modified Kelly example. Ways of employing combined analytical and soft-computing approaches and techniques in a hybrid framework have been investigated. A fuzzy-Petri-net supervisor is proposed to implement the strategic decision and control layer. Insofar obtained results are rather encouraging, and this research continues further towards possible implementation as well as some open theoretical issues. © 2001 IEEE.

关键词： Game theory

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