Generalized mean for feature extraction in one-class classification problems

  • Authors:
  • Jiyong Oh;Nojun Kwak;Minsik Lee;Chong-Ho Choi

  • Affiliations:
  • -;-;-;-

  • Venue:
  • Pattern Recognition
  • Year:
  • 2013

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Abstract

Biased discriminant analysis (BDA), which extracts discriminative features for one-class classification problems, is sensitive to outliers in negative samples. This study focuses on the drawback of BDA attributed to the objective function based on the arithmetic mean in one-class classification problems, and proposes an objective function based on a generalized mean. A novel method is also presented to effectively maximize the objective function. The experimental results show that the proposed method provides better discriminative features than the BDA and its variants.