A multi-objective multi-modal optimization approach for mining stable spatio-temporal patterns

  • Authors:
  • Michèle Sebag;Nicolas Tarrisson;Olivier Teytaud;Julien Lefevre;Sylvain Baillet

  • Affiliations:
  • TAO, CNRS, INRIA, Universit´e Paris-Sud, Orsay;TAO, CNRS, INRIA, Universit´e Paris-Sud, Orsay;TAO, CNRS, INRIA, Universit´e Paris-Sud, Orsay;LENA, CNRS, Paris;LENA, CNRS, Paris

  • Venue:
  • IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
  • Year:
  • 2005

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Abstract

This paper, motivated by functional brain imaging applications, is interested in the discovery of stable spatio-temporal patterns. This problem is formalized as a multi-objective multi-modal optimization problem: on one hand, the target patterns must show a good stability in a wide spatio-temporal region (antagonistic objectives); on the other hand, experts are interested in finding all such patterns (global and local optima). The proposed algorithm, termed 4D-Miner, is empirically validated on artificial and real-world datasets; it shows good performances and scalability, detecting target spatiotemporal patterns within minutes from 400+ Mo datasets.