Medical Decision Based on Fussiness and Uncertainty Prof. K. S. Leung graduated from the University of London degree in 1980. He thenworke dfor five years in England as a senior engineer/systems analyst, first at ERA Technology then at the headquarters computer centre of the Central Electricity Generating Board. He is a member of lEE, BCS, and ACM, a senior member of IEEE, and a chartered engineer Prof. Leung's research interests cover knowledge engineering, expert systems, genetic algorithms and programming, automatic knowledge acquisition, Chinese processing, fuzzy logic applications, and AI architecture. Since joining The Chinese University i n 1985, he has developed several novel expert systems and shells in various areas of application. Prof. Leung is now professor in the University's Department of Computer Science and Engineering, and head of the graduate division of computer science.