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Discriminant forest classification method and system

United States Patent

November 6, 2012
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A hybrid machine learning methodology and system for classification that combines classical random forest (RF) methodology with discriminant analysis (DA) techniques to provide enhanced classification capability. A DA technique which uses feature measurements of an object to predict its class membership, such as linear discriminant analysis (LDA) or Andersen-Bahadur linear discriminant technique (AB), is used to split the data at each node in each of its classification trees to train and grow the trees and the forest. When training is finished, a set of n DA-based decision trees of a discriminant forest is produced for use in predicting the classification of new samples of unknown class.
Chen; Barry Y. (San Ramon, CA), Hanley; William G. (Livermore, CA), Lemmond; Tracy D. (Tracy, CA), Hiller; Lawrence J. (Livermore, CA), Knapp; David A. (Livermore, CA), Mugge; Marshall J. (Westerly, RI)
Lawrence Livermore National Security, LLC (Livermore, CA)
12/ 436,667
May 6, 2009
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.