Introducing the use of model-based evolutionary algorithms for EEG-based motor imagery classification

  • Authors:
  • Roberto Santana;Laurent Bonnet;Jozef Legény;Anatole Lécuyer

  • Affiliations:
  • University of the Basque Country, San Sebastian, Spain;INRIA Rennes, Rennes, France;INRIA Rennes, Rennes, France;INRIA Rennes, Rennes, France

  • Venue:
  • Proceedings of the 14th annual conference on Genetic and evolutionary computation
  • Year:
  • 2012

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Abstract

Brain computer interfaces (BCIs) allow the direct human-computer interaction without the need of motor intervention. To properly and efficiently decode brain signals into computer commands the application of machine-learning techniques is required. Evolutionary algorithms have been increasingly applied in different steps of BCI implementations. In this paper we introduce the use of the covariance matrix adaptation evolution strategy (CMA-ES) for BCI systems based on motor imagery. The optimization algorithm is used to evolve linear classifiers able to outperform other traditional classifiers. We also analyze the role of modeling variables interactions for additional insight in the understanding of the BCI paradigms.