John Henry Holland ( February 2 , 1929 -- August 9 , 2015 ) was an American scientist and Professor of psychology and Professor of electrical engineering and computer science at the University of Michigan , Ann Arbor .
John Henry Holland ( February 2 , 1929 -- August 9 , 2015 ) was an American scientist . He was Professor of Psychology and Professor of Electrical Engineering and Computer Science at the University of Michigan , Ann Arbor .