Discriminating and visualizing anomalies using negative selection and self-organizing maps

  • Authors:
  • Fabio A. González;Juan Carlos Galeano;Diego Alexander Rojas;Angélica Veloza-Suan

  • Affiliations:
  • Universidad Nacional de Colombia, Bogotá, Colombia;Universidad Nacional de Colombia, Bogotá, Colombia;Universidad Nacional de Colombia, Bogotá, Colombia;Universidad Nacional de Colombia, Bogotá, Colombia

  • Venue:
  • GECCO '05 Proceedings of the 7th annual conference on Genetic and evolutionary computation
  • Year:
  • 2005

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Abstract

An immune inspired model that can detect anomalies, even when trained only with normal samples, and can learn from encounters with new anomalies is presented. The model combines a negative selection algorithm and a self-organizing map (SOM) in an immune inspired architecture. The proposed system is able to produce a visual representation of the self/non-self feature space, thanks to the topological 2-dimensional map produced by the SOM. Some experiments were performed on classification data; the results are presented and discussed.