| M. Tamer Özsu
Professor and University Research Chair Joined School 2000 BSc (METU),
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Professor Özsu's research area is database systems. He has ongoing projects in three main areas: distributed data management, multimedia databases, and XML management. In the area of distributed data management, Professor Özsu focuses on management of massively distributed data with two broad themes. The first is the investigation of stream data management issues. A data stream is a realtime, continuous, ordered sequence of items that are used to model sensor output, Internet traffic, financial tickers and other applications that continuously produce data. There are significant differences between the type of data managed by traditional DBMSs and stream data focusing on query processing and optimization, and mining of stream data. The second theme is Web data management. Internet and the Web make it feasible to put a lot of data “online”. However, the management of this data is a real problem. He investigates how this data can be retrieved through a combination of database-like querying and information retrieval-like keyword search.
In the area of XML databases, he is focusing on efficient execution of queries over XML repositories. XML is the emerging standard for storing documents as well as encoding Web data. The management of XML data requires different considerations than the formatted data that traditional database systems are good at. Professor Özsu investigates the query processing and optimization over distributed XML databases.
Finally, in the area of multimedia databases, his work focuses on architectural issues in the management of multiple media types. The starting point is that one monolithic system is unlikely to provide satisfactory support for multiple data types, requiring the development of an “open” architecture that seamlessly combines multiple systems, each focused on one media type. With respect to specific research on various media, he is interested in video databases and the management of audio data.
Fellow of the IEEE (2011); Distinguished Alumnus Award, Ohio State University College of Engineering (2008); ACM Distinguished Lecturer (2007); Fellow of the ACM (2006); ACM SIGMOD Contributions Award (2006); University Research Chair, University of Waterloo (2004-2011); Faculty of Mathematics Fellow, University of Waterloo (2000-2003); McCalla Professor, University of Alberta (1993-1994)
Professor Özsu has spent time as a visiting scientist or a visiting professor at various institutions. In 1990-1991 he spent his sabbatical leave at GTE Laboratories in Waltham, Massachusetts. In 1997-98, Professor Özsu was on sabbatical leave at INRIA Rocquencourt, France, GMD-IPSI, Germany, and University of Milano, Italy. In 2006, he was a visiting professor at ETH Zurich and at National University of Singapore. He is spending 2010-2011 as KITHCT Visiting Professor at the National University of Singapore and will spend 2011-2012 as Visiting Professor at ETH Zurich.
Professor Özsu has done some consulting and has given a number of industrial seminars.
P. Kling, M. T. Özsu,and K. Daudjee. Generating efficient execution plans for vertically partitioned XML databases. Proc. VLDB, 4(1) to appear
L. Golab and M. T. Özsu. Data Stream Management. Morgan & Claypool, 2010.
Y. Tao and M. T. Özsu. Mining data streams with periodically changing distributions. ACM 18th Int. Conf. on Information and Knowledge Management, pp. 887-896, 2009.
L. Liu and M. T. Özsu (eds.) Encyclopedia of Database Systems. Springer, 4100 pages, 2009.
C. Plattner, G. Alonso, and M. T. Özsu. Extending DBMSs with Satellite Databases. VLDB Journal, 17(4):657-682, 2008.
David R. Cheriton School of Computer Science
University of Waterloo
Waterloo, Ontario, Canada N2L 3G1
Tel: 519-888-4567 x33293
Fax: 519-885-1208
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Last modified: Thursday, 06-Jan-2011 18:20:14 EST
