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Department of Statistics, UCLA

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An Introduction to Ensemble Methods for Data Analysis


This paper provides an introduction to ensemble statistical proce- dures as a special case of algorithmic methods. The discussion beings with classification and regression trees (CART) as a didactic device to introduce many of the key issues. Following the material on CART is a consideration of cross-validation, bagging, random forests and boosting. Ma jor points are illustrated with analyses of real data.

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