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United States Patent  7,725,413 
Yuta  May 25, 2010  

Generating two-class classification model for predicting chemical toxicity

Abstract
A method includes: a) preparing as training data a sample set that contains a plurality of samples belonging to a first class and a plurality of samples belonging to a second class; 
b) generating, by performing discriminant analysis on the sample set, a first discriminant function having a high classification characteristic for the first class and a second 
discriminant function having a high classification characteristic for the second class; c) by classifying the sample set using the first and second discriminant functions, 
isolating any sample whose classification results by the first and second discriminant functions do not match; d) forming a new sample set by grouping together any sample thus isolated, 
and repeating b) and c) by using the new sample set; and e) causing d) to stop when the number of samples each of whose classification results do not match in c) has decreased to or 
below a predetermined value. 

Inventors:  Yuta; Kohtarou (Kawasaki, JP)  
Assignee: Fujitsu Limited (Kawasaki, JP) 
 
Appl. No.:  12/453,247 
Filed:  May 4, 2009