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

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.
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

Breiman's work helped to bridge the gap between statistics andcomputer science, particularly in the field ofmachine learning. His most important contributions were his work onclassification and regression trees and ensembles of trees fit tobootstrap samples.Bootstrap aggregation was given the namebagging by Breiman. Another of Breiman's ensemble approaches is therandom forest.

• Shannon–McMillan–Breiman theorem

• Leo Breimanobituary, from the University of California, Berkeley
• Richard A. Olshen "A Conversation with Leo Breiman," Statistical Science Volume 16, Issue 2, 2001
• Breiman, L. (2001). "Statistical Modeling: the Two Cultures".Statistical Science.16 (3):199–215.doi:10.1214/ss/1009213725.JSTOR 2676681.

Random Forests

• Leo Breiman at theMathematics Genealogy Project
• Leo Breiman fromPORTRAITS OF STATISTICIANS
• A video record of a Leo Breiman's lecture about one of his machine learning techniques