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Optimal Tri-State Classifier Using ROC Analysis

IP.com Disclosure Number: IPCOM000031662D
Original Publication Date: 2004-Oct-04
Included in the Prior Art Database: 2004-Oct-04

Publishing Venue

IBM

Abstract

Classifiers that in certain cases abstain from classification can significantly reduce the total misclassification cost. However, setting the parameters for such abstaining classifiers is often done in an ad-hoc manner. Our invention disclosure proposes a method to improve the selection of parameters of an abstaining classifier using ROC analysis. Our method builds an improved classifier in a two models: cost-based model and a bounded one. We also show an embodiment and how our method can be used with a cross-validation and a ROC curve building algorithm to reduce the mislcassification cost in classification systems.