Leo Breiman

Leo Breiman
Leo Breiman in 2003
Born	(1928-01-27)January 27, 1928 New York City, United States
Died	July 5, 2005(2005-07-05) (aged 77) Berkeley, California, United States
Nationality	USA
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	Smarajit Bose, Samuel Buttrey, Chao Chen, Adele Cutler, Robert Koyak, Nong Shang

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, and was a member of the United States National Academy of Science.

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.

Further reading

• Leo Breiman obituary, from the University of California, Berkeley
• Richard 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.

External links

• Leo Breiman at the Mathematics Genealogy Project
• Leo Breiman from PORTRAITS OF STATISTICIANS
• A video record of a Leo Breiman's lecture about one of his machine learning techniques