Evolving RBF Neural Networks

  • Authors:
  • Víctor Manuel Rivas Sanchos;Pedro A. Castillo Valdivieso;Juan J. Merelo Guervós

  • Affiliations:
  • -;-;-

  • Venue:
  • IWANN '01 Proceedings of the 6th International Work-Conference on Artificial and Natural Neural Networks: Connectionist Models of Neurons, Learning Processes and Artificial Intelligence-Part I
  • Year:
  • 2001

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Abstract

Determining the parameters of a Radial Basis Function Neural Nerwork (number of neurons, and their respective centers and radii) is often done by hand, or based in methods highly dependent on initial values. In this work, Evolutionary Algorithms are used to automatically build a RBF NN that solves a specified problem. The evolutionary al gorithms are implemented using a new evolutionary computation framework called EO, which allows direct evolution of problem solutions, so that no internal representation is needed, and specific solution domain knowledge can beused to construct evolutionary operators, as well as cost or fitness functions. Results show that this new approach finds nets with good generalization power, while maintaining a reasonable size.