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ISR Distinguished Lecturer: Tamer Basar, "Sensing, Control and Decision Making with Limited Actions"
Monday, October 11, 2010
5:00 p.m.
1110 Jeong H. Kim Building
For More Information:
Regina King
301 405 6615

Sensing, Control, and Decision Making with Limited Actions

Reception 4:30 p.m.
Lecture 5:00 p.m.

Tamer Basar
Swanlund Endowed Chair
CAS Professor of Electrical & Computer Engineering, Center for Advanced Study
Research Professor, Information Trust Institute
Research Professor, Coordinated Science Laboratory
University of Illinois Urbana-Champaign

Nuno Martins

Interaction between information/communication and control (with control interpreted in a broader context, including strategic decision making in teams and games) has been a dominating research topic for several decades. This interaction is in general a complex one because, viewed as separate decision units, each one could help the other to achieve an overall better performance: more information generally leads to better control performance, and a judicious use of control could improve the information content of transmitted messages. These dual roles are not always aligned, however, making the derivation of optimal solutions to team problems generally much more challenging than obtaining for example saddle-point solutions to similarly structured games. Regardless of these difficulties, which are inherent to stochastic decision problems with nonclassical information, the common element in all these problems has been to find a satisfactory answer to the question of what to send, or equivalently how to shape the information/sensor and control signals so as to collectively meet a targeted objective.

With the emergence of remote control applications, where the plant-control and control-plant communications are conducted over a heterogeneous network, or applications that involve distributed agents over large networks, some nontraditional and nonstandard constraints have been imposed on designs, prompted by limitations on power usage and other available resources.

The questions that are now being asked are not only what to send, but also when to send, given some constraints on the number of transmissions (which could include sensor signals, control signals, or communication between agents) and also given the unreliability of the transmission medium where the information on whether the signals sent have reached their intended destinations or not is at best only partially available.

Following a brief overview of the classical paradigm of what to send and how to shape, this talk will discuss a framework wherein also the question of when to send can be given a precise meaning and addressed along with the former. Solutions to these problems involve threshold-type policies with online dynamic scheduling and offline computation. This is a rich paradigm with relevance not only to remote control but also to multi-agent teams and games.

Tamer Basar is with the University of Illinois at Urbana-Champaign (UIUC), where he holds the academic positions of Swanlund Endowed Chair, Center for Advanced Study Professor of Electrical and Computer Engineering, Research Professor at the Coordinated Science Laboratory, and Research Professor at the Information Trust Institute. He received the B.S.E.E. degree from Robert College, Istanbul, and the M.S., M.Phil, and Ph.D. degrees from Yale University. He joined UIUC in 1981 after holding positions at Harvard University and Marmara Research Institute (Turkey). He has published extensively in systems, control, communications, and dynamic games, and has current research interests in modeling and control of communication networks; control over heterogeneous networks; estimation and control with limited sensing and transmission; resource allocation, management and pricing in networks; mobile and distributed computing; and security issues in computer networks.

Dr. Başar is currently the Editor-in-Chief of Automatica, Editor of the Birkhuser Series on Systems & Control, Managing Editor of the Annals of the International Society of Dynamic Games (ISDG), and member of editorial and advisory boards of several international journals in control, wireless networks, and applied mathematics. He has received several awards and recognitions over the years, among which are the Medal of Science of Turkey (1993); Distinguished Member Award (1993), Axelby Outstanding Paper Award (1995), and Bode Lecture Prize (2004) of the IEEE Control Systems Society (CSS); Tau Beta Pi Drucker Eminent Faculty Award of UIUC (2004); Quazza Medal (2005) and Outstanding Service Award (2005) of the International Federation of Automatic Control (IFAC); Bellman Control Heritage Award (2006) of the American Automatic Control Council (AACC); honorary doctorate (Doctor Honoris Causa) from Doguş University (Istanbul; 2007); honorary professorship from Northeastern University (Shenyang; 2008); and Isaacs Award of ISDG (2010). He is a member of the US National Academy of Engineering, a member of the European Academy of Sciences, a Fellow of IEEE, a Fellow of IFAC, a past president of CSS, the founding president of ISDG, and current President of AACC.

This Event is For: Clark School • Graduate • Undergraduate • Faculty • Post-Docs • Alumni • Corporate

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