When David Marr at MIT moved into computer vision, he generated a lot of excitement, but he hit up against the problem of knowledge representation; he had no good representations for knowledge in his vision systems.
Bio: Isaac Leib Peretz, also sometimes written Yitskhok Leybush Peretz, best known as I. L. Peretz, was a Yiddish language author and playwright from Poland. Payson R. Stevens, Charles M.