Leo Breiman

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Leo Breiman
Leo Breiman in 2003
Born	(1928-01-27)January 27, 1928 New York City, U.S.
Died	July 5, 2005(2005-07-05) (aged 77) Berkeley, California, U.S.
Nationality	American
Alma mater	University of California, Berkeley
Known for	CART, Bagging, Random forest
Scientific career
Fields	Statistics
Institutions	University of California, Berkeley
Thesis	Homogeneous Processes (1954)
Doctoral advisor	Michel Loève
Doctoral students	Adele Cutler

Leo Breiman (January 27, 1928 – July 5, 2005) was a distinguished statistician at the University of California, Berkeley. He was the recipient of numerous honors and awards,^{[citation needed]} and was a member of the United States National Academy of Sciences.

Breiman's work helped to bridge the gap between statistics and computer science, particularly in the field of machine learning. His most important contributions were his work on classification and regression trees and ensembles of trees fit to bootstrap samples. Bootstrap aggregation was given the name bagging by Breiman. Another of Breiman's ensemble approaches is the random forest.