Mining evolving data streams for frequent patterns

  • Authors:
  • Pierre-Alain Laur;Richard Nock;Jean-Emile Symphor;Pascal Poncelet

  • Affiliations:
  • Grimaag Département Scientifique Interfacultaire, Université des Antilles-Guyane, Campus de Schoelcher, BP 7209, 97275 Schoelcher, Martinique, France;Grimaag Département Scientifique Interfacultaire, Université des Antilles-Guyane, Campus de Schoelcher, BP 7209, 97275 Schoelcher, Martinique, France;Grimaag Département Scientifique Interfacultaire, Université des Antilles-Guyane, Campus de Schoelcher, BP 7209, 97275 Schoelcher, Martinique, France;Ecole des Mines d'Alès, LG2IP/Site EERIE, Parc Scientifique Georges Besse, 30035 Nımes cedex 1, France

  • Venue:
  • Pattern Recognition
  • Year:
  • 2007

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Abstract

A data stream is a potentially uninterrupted flow of data. Mining this flow makes it necessary to cope with uncertainty, as only a part of the stream can be stored. In this paper, we evaluate a statistical technique which biases the estimation of the support of patterns, so as to maximize either the precision or the recall, as chosen by the user, and limit the degradation of the other criterion. Theoretical results show that the technique is not far from the optimum, from the statistical standpoint. Experiments performed tend to demonstrate its potential, as it remains robust even under significant distribution drifts.