The Bayes decision rule induced similarity measures.

Liu, Chengjun · IEEE Trans Pattern Anal Mach Intell · 2007

other · Level V

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Abstract

This paper first shows that the popular whitened cosine similarity measure is related to the Bayes decision rule under specific assumptions and then presents two new similarity measures: the PRM Whitened Cosine (PWC) similarity measure and the Within-Class Whitened Cosine (WWC) similarity measure. Experiments on face recognition using the Face Recognition Grand Challenge (FRGC) version 2 database show the effectiveness of the new measures.

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