Drift Severity Metric

  • Authors:
  • Petr Kosina;João Gama;Raquel Sebastião

  • Affiliations:
  • Fac. of Informatics, Masaryk University, Brno email: soso@mail.muni.cz;LIAAD-INESC Porto, FEP-University of Porto email: jgama@fep.up.pt;LIAAD-INESC Porto, FC --University of Porto email: raquel@liaad.up.pt

  • Venue:
  • Proceedings of the 2010 conference on ECAI 2010: 19th European Conference on Artificial Intelligence
  • Year:
  • 2010

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Abstract

Concept drift in data is usually considered only as abrupt or gradual thus referring to the speed of change. Such simple distinguishing by speed is sufficient for most of the problems, but there might be situations for which a finer representation would be of use. This paper studies further the phenomenon of concept drift and introduces a simple measure which is relevant to the speed and amount of change between different concepts.