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an American [[Psychology:Category:Psychologist|psychologist]], computer scientist and [https://en.wikipedia.org/wiki/Professor_Emeritus Professor Emeritus] at [[Northwestern University]]. At the Department of Psychology at Northwestern his research focused on [[Pattern Recognition|pattern recognition]], [[Learning|machine learning]], computer chess and computer-based decision systems. He is co-founder of ''Pattern Recognition Systems''. Peter W. Frey is editor of and contributor to [[Chess Skill in Man and Machine]] <ref> [[Peter W. Frey]] (ed.) ('''1977'''). [[Chess Skill in Man and Machine]], Springer-Verlag, New York, N.Y. 2nd ed. 1983. ISBN 0-387-90815-3.</ref>, the definitive text on computer chess <ref>[http://www.spacious-mind.com/html/commodore_c64_chess_7_0.html Commodore 64/128 Old Computer Chess Game Collection - Chess 7.0, Approaches to Chess by Peter Frey] hosted by [[The Spacious Mind]]</ref>.