Dependence trees with copula selection for continuous estimation of distribution algorithms

  • Authors:
  • Rogelio Salinas-Gutiérrez;Arturo Hernández-Aguirre;Enrique R. Villa-Diharce

  • Affiliations:
  • Center for Research in Mathematics (CIMAT), Guanajuato, Mexico;Center for Research in Mathematics (CIMAT), Guanajuato, Mexico;Center for Research in Mathematics (CIMAT), Guanajuato, Mexico

  • Venue:
  • Proceedings of the 13th annual conference on Genetic and evolutionary computation
  • Year:
  • 2011

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Abstract

In this paper, a new Estimation of Distribution Algorithm (EDA) is presented. The proposed algorithm employs a dependency tree as a graphical model and bivariate copula functions for modeling relationships between pairwise variables. By selecting copula functions it is possible to build a very flexible joint distribution as a probabilistic model. The experimental results show that the proposed algorithm has a better performance than EDAs based on Gaussian assumptions.