April 8, 2015, Marios Polycarpou, University of Cyprus

Wednesday, April 8, 2015
4:00 PM to 5:00PM
8 St. Mary’s Street, PHO 901

Marios Polycarpou,
CISE Resident Scholar
University of Cyprus

Robust Sensor Fault Detection and Isolation in Cyber-Physical Systems

Recent advances in information and communication technologies, embedded systems and sensor networks have generated significant research activity in the development of large-scale cyber-physical systems, where a huge volume of sensor data is collected and processed in real-time in order to achieve smooth and efficient operation of the underlying system. The current trend is towards larger and larger sensor data sets, leading to so called big data environments. However, in situations where faults arise in one or more of the sensing devices, this may lead to a serious degradation in performance or even to an overall system failure, especially as a result of propagating faults in interconnected subsystems. The goal of this presentation is to motivate the need for fault diagnosis in cyber-physical systems and to provide a methodology for detecting and isolating multiple sensor faults in a class of nonlinear dynamical systems. The detection of faults in sensor groups is conducted using robust analytical redundancy relations, formulated by structured residuals and adaptive thresholds. Various estimation and learning algorithms will be presented and illustrated, and directions for future research will be discussed.

Marios M. Polycarpou is a Professor of Electrical and Computer Engineering and the Director of the KIOS Research Center for Intelligent Systems and Networks at the University of Cyprus. He received the B.A. degree in Computer Science and the B.Sc. degree in Electrical Engineering both from Rice University, Houston, TX, USA in 1987, and the M.S. and Ph.D. degrees in Electrical Engineering from the University of Southern California, Los Angeles, CA, in 1989 and 1992 respectively. Prior to joining the University of Cyprus as founding Department Chair in 2001, he was Professor of Electrical and Computer Engineering and Computer Science at the University of Cincinnati, Ohio, USA. His teaching and research interests are in intelligent systems and networks, adaptive and cooperative control systems, computational intelligence, fault diagnosis and distributed agents. Dr. Polycarpou has published more than 250 articles in refereed journals, edited books and refereed conference proceedings, and co-authored 6 books. He is also the holder of 6 patents.

Prof. Polycarpou is a Fellow of the IEEE and and served as the President of the IEEE Computational Intelligence Society between Jan. 2012 – Dec. 2013. He has served as the Editor-in-Chief of the IEEE Transactions on Neural Networks and Learning Systems between 2004-2010. In 2014, Dr. Polycarpou was the recipient of the Best Paper Award for the journal Building and Environment(Elsevier). He participated in more than 60 research projects/grants, funded by several agencies and industry in Europe and the United States. In 2011, Prof. Polycarpou was awarded the prestigious European Research Council (ERC) Advanced Grant.

Faculty Host:  Yannis Paschalidis
Student Host: Elli Ntakou