Wang David
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:School of Control Science and Engineering
Discipline:Control Theory and Control Engineering. Pattern Recognition and Intelligence System. Navigation, Guidance and Control
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Date:2020-02-17
Indexed by:Journal Papers
Date of Publication:2020-01-01
Journal:IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
Included Journals:SCIE、EI
Volume:50
Issue:1
Page Number:281-289
ISSN:2168-2216
Key Words:Cost function; Multi-agent systems; Stochastic processes; Topology; Smoothing methods; Protocols; Communication noises; constrained optimization; distributed algorithm; random gradient-free algorithm
Abstract:In this paper, we focus on a constrained convex optimization problem of multiagent systems under a time-varying topology. In such topology, it is not only B-strongly connected, but the communication noises are also existent. Each agent has access to its local cost function, which is a nonsmooth function. A gradient-free random protocol is come up with minimizing a sum of cost functions of all agents, which are projected to local constraint sets. First, considering the stochastic disturbances in the communication channels among agents, the upper bounds of disagreement estimate of agents' states are obtained. Second, a sufficient condition on choosing step sizes and smoothing parameters is derived to guarantee that all agents almost surely converge to the stationary optimal point. At last, a numerical example and a comparison are provided to illustrate the feasibility of the random gradient-free algorithm.
Dong Wang received the B.Sc. degree in automation and the M. Eng. degree in control theory and control engineering from the Shenyang University of Technology, Shenyang, China, in 2003 and 2006, respectively, and Ph.D. degree in control theory and control engineering from the Dalian University of Technology, China, in 2010. Since 2010, he has been with the Dalian University of Technology, China, where he is currently a professor with the School of Control Science and Engineering. His current research interests include multi-agent systems, distributed control, distributed optimization, swarm robotics and switched systems.
He has published 1 monograph in Springer, and published and accepted more than 120 papers in core journals and conferences, including 5 papers 4 regular papers in Automatica, 4 papers in IEEE Transactions on Automatic Control, with a total of more than 2,900 citations from Google Scholar.
He serves as an associate editor of the journals, IEEE Transactions on Industrial Informatics, Information Sciences and Neurocomputing, and an editorial board member of the core journals, such as, Control Theory and Applications, and CAAI Transactions on Intelligent Systems. He served as the Secretary-General of the 36th China Control Conference and the 25th China Process Control Conference, the Deputy Director of the Youth Working Committee of the Chinese Command and Control Society, a senior member of the IEEE, a member of the Chinese Society of Automation, a member of the Chinese Society of Artificial Intelligence, a member of the Chinese Command and Control Society, and a member of the Program Committee of several international conferences.
