Clement Yu holds a Ph.D. in Computer Science from Cornell University, and is currently a professor in the Department of Electrical Engineering and Computer Science at the University of Illinois, Chicago. He served as chairman of the ACM Special Interest Group on Information Retrieval, as an advisory committee member to the National Science Foundation, and as general chair/program committee chair to several database/information retrieval conferences and workshops. He has consulted for System Development Corporation (now Unisys) on distributed query processing, for MCC and Unisql on query processing in heterogeneous database systems, worked on a fuzzy database system project for Omron Corporation. He is a member of Linden Technology which applies associative memory for advanced database applications. Dr. Yu is an associate editor/on the editorial board of IEEE Transactions on Knowledge and Data Engineering, the Journal of Distributed and Parallel Databases and the International Journal of Software Engineering and Knowledge Engineering. His research interests include database management, information retrieval for multimedia, and applications to medicine.