| Title: | Failure Prediction for Availability Enhancement |
| Date: | October 27, 2005 (Thursday)
|
| Time: | 2:30 p.m. - 3:30 p.m.
|
| Venue: | Room 121, 1/F, Ho Sin-hang Engineering Building,
The Chinese University of Hong Kong, Shatin, N.T. |
| Speaker: | Professor Miroslaw Malek
Institut für Informatik Humboldt-Universitaet zu Berlin |
The availability of software and hardware systems can be increased by preventive measures which are triggered by failure prediction mechanisms. We present and evaluate two non-parametric techniques which model and predict the occurrence of failures as a function of discrete and continuous measurements of system variables. We employ two modelling approaches: an extended Markov chain model and a function approximation technique utilising universal basis functions (UBF). The presented modelling methods are data driven rather than analytical and can handle large amounts of variables and data. They offer the potential to capture the underlying dynamics of these potentially high-dimensional and noisy systems. Both modelling techniques have been applied to real data of a commercial telecommunication platform. The data includes event-based log files and measured system states. Results are presented in terms of precision, recall, F-Measure and cumulative cost. We compare our results to standard techniques such as linear ARMA models. Our findings suggest significantly improved forecasting performance compared to alternative approaches. By using the presented modelling techniques the software availability may be improved by an order of magnitude.
BIOGRAPHY:
Miroslaw Malek received the M.Sc. degree in Electrical Engineering in 1970 and the Ph.D. degree in Computer Science in 1975, both from the Technical University of Wroclaw, Poland.
He is professor and holder of the Chair in Computer Architecture and Communication at Humboldt University in Berlin since 1994. In 1977, he was a visiting scholar at the Department of Systems Design at the University of Waterloo, Waterloo, Ontario, Canada, then Assistant, Associate and Full Professor at the University of Texas at Austin where he was also a holder of the Bettie Margaret Smith and the Southwestern Bell Professor in Engineering, Malek's research interests focus on dependability, composability and mobility mainly in distributed systems but also in parallel architectures, real-time systems, and interconnection networks. He has participated in two pioneering parallel computer projects, contributed to the theory and practice of parallel network design, developed the comparison-based method for system diagnosis, codeveloped comprehensive WSI and networks testing techniques, proposed the consensus-based framework for responsive (fault-tolerant, real-time) computer systems design and failure prediction methods and has made numerous other contributions, reflected in over 150 publications and a book with G. J. Lipovski entitled Parallel Computing: Theory and Comparisons.
He has organized, chaired and been a program committee member of numerous IEEE and ACM international conferences and workshops. Among others, he was Program and General Chairman of the Real-Time Systems Symposium in 1984 and 1985, respectively and in 1994 General Chairman of the 24th Fault-Tolerant Computing Symposium, Program Co-chairman of the 22nd Symposium on Reliable Distributed Computing in 2003, Program Chairman and General Chairman of the International Service Availability Symposium in 2004 and 2005, respectively. He served on the editorial boards of various journals, among them the Journal of Parallel and Distributed Computing as well as Real-Time Systems journal.
Malek was a Visiting Scientist at Bell Labs in Murray Hill and at IBM's T. J. Watson Research Center, Yorktown Heights, NY. He held the IBM Chair at Keio University in Japan in 1992. He was also a Visiting Professor at Stanford University (1997/1998), New York University (2001) and the Italian National Research Center and Pisa University (2002).
Enquiries: Miss Temmy So at tel 2609 8444
For more information, please refer to
http://www.cse.cuhk.edu.hk/seminar