Incorporating a priori knowledge from detractor points into support vector classification

  • Authors:
  • Marcin Orchel

  • Affiliations:
  • AGH University of Science and Technology, Kraków, Poland

  • Venue:
  • ICANNGA'11 Proceedings of the 10th international conference on Adaptive and natural computing algorithms - Volume Part II
  • Year:
  • 2011

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Abstract

In this article, we extend the idea of a priori knowledge in the form of detractor points presented recently for Support Vector Classification. We show that detractor points can belong to the new type of support vectors - training samples which lie outside a margin bounded region. We present the new application for a priori knowledge from detractor points - improving generalization performance of Support Vector Classification while reducing a complexity of a model by removing a bunch of support vectors. The experiments show that indeed the new type of a priori knowledge improves generalization performance of reduced models. The tests were performed on selected classification data sets, and on stock price data from public domain repositories.