An Ensemble of Classifiers for coping with Recurring Contexts in Data Streams

  • Authors:
  • Ioannis Katakis;Grigorios Tsoumakas;Ioannis Vlahavas

  • Affiliations:
  • Department of Informatics, Aristotle University of Thessaloniki, 54124 Greece, email: katak@csd.auth.gr;Department of Informatics, Aristotle University of Thessaloniki, 54124 Greece, email: greg@csd.auth.gr;Department of Informatics, Aristotle University of Thessaloniki, 54124 Greece, email: vlahavas@csd.auth.gr

  • Venue:
  • Proceedings of the 2008 conference on ECAI 2008: 18th European Conference on Artificial Intelligence
  • Year:
  • 2008

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Abstract

This paper proposes a general framework for classifying data streams by exploiting incremental clustering in order to dynamically build and update an ensemble of incremental classifiers. To achieve this, a transformation function that maps batches of examples into a new conceptual feature space is proposed. The clustering algorithm is then applied in order to group different concepts and identify recurring contexts. The ensemble is produced by maintaining an classifier for every concept discovered in the stream The full version of this paper as well as the datasets used for evaluation can be found at: http://mlkd.csd.auth.gr/concept_drift.html