tion for Computing Machinery, 1970 Doubleday Lecturer, Smithsonian Institution, 1978 Messenger Lecturer, Cornell University, 1979 Dr. Honoris Causa, Free University of Brussels, 1986 Killian Award, MIT, 1989 Japan Prize Laureate, 1990 Research Excellence Award, IJCAI 1991 Joseph Priestly Award, 1995 Rank Prize, Royal Socie