I. J. Good

Irving John Good (9 December 1916 – 5 April 2009) was a British mathematician who worked as a cryptologist at Bletchley Park with Alan Turing. After the Second World War, Good continued to work with Turing on the design of computers and Bayesian statistics at the University of Manchester. Good moved to the United States where he was professor at Virginia Tech.

I. J. Good
Born
Isadore Jacob Gudak

(1916-12-09)9 December 1916
London, England, United Kingdom
Died5 April 2009(2009-04-05) (aged 92)
Radford, Virginia, United States
Alma materJesus College, Cambridge
Known forGood–Thomas algorithm
Good–Toulmin estimator
Good–Turing frequency estimation
Black hole cosmology
Intelligence explosion
AwardsSmith's Prize (1940)
Scientific career
FieldsStatistician, cryptologist
InstitutionsTrinity College, Oxford; Virginia Tech
Doctoral advisorG. H. Hardy

He was born Isadore Jacob Gudak to a Polish Jewish family in London. He later anglicised his name to Irving John Good and signed his publications "I. J. Good."

An originator of the concept now known as "intelligence explosion," Good served as consultant on supercomputers to Stanley Kubrick, director of the 1968 film 2001: A Space Odyssey.

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