A survey of recent trends in one class classification

  • Authors:
  • Shehroz S. Khan;Michael G. Madden

  • Affiliations:
  • College of Engineering and Informatics, National University of Ireland, Galway, Ireland;College of Engineering and Informatics, National University of Ireland, Galway, Ireland

  • Venue:
  • AICS'09 Proceedings of the 20th Irish conference on Artificial intelligence and cognitive science
  • Year:
  • 2009

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Abstract

The One Class Classification (OCC) problem is different from the conventional binary/multi-class classification problem in the sense that in OCC, the negative class is either not present or not properly sampled. The problem of classifying positive (or target) cases in the absence of appropriately-characterized negative cases (or outliers) has gained increasing attention in recent years. Researchers have addressed the task of OCC by using different methodologies in a variety of application domains. In this paper we formulate a taxonomy with three main categories based on the way OCC has been envisaged, implemented and applied by various researchers in different application domains. We also present a survey of current state-of-the-art OCC algorithms, their importance, applications and limitations.