Setsuo Ohsuga is currently a professor in Department of Information Science and Computer Science, Waseda University, Japan. He received his Ph.D. from the University of Tokyo. He has been professor and director of Research Center for Advanced Science and Technology (RCAST) at the University of Tokyo. He is adviser and was president of Japanese Society for Artificial Intelligence (JSAI). He is vice president of International Society of Applied Intelligence, and is president of International Society of Multimedia and Virtual Systems. He is a member of the steering committee of International Rough Set Society, the advisory board of a Special Interest Group on Granular Computing in Berkeley Initiative in Soft Computing (BISC/SIG-GrC). He is an editor of several scientific journals including Knowledge-Based Systems (Elsevier), Applied Intelligence (Kluwer), Intelligent Information Systems (Kluwer), Knowledge and Information Systems (Springer), and CAD. He has served or is currently serving as a chair of international conferences and workshops, including PRICAI'90, ALT'90, EJCIMKB'91, IEA-AIE'96, MVS'96, IJCAI'97, PAKDD'99, RSFDGrC'99, and IAT'99. His research interests include artificial intelligence, knowledge information processing, databases, knowledge discovery and data mining, hybrid systems, automatic programming, multi-agent, very-large complex systems, and CAD. He has published more than 200 journal and conference papers.