Designing radial basis function neural networks with meta-evolutionary algorithms: The effect of chromosome codification

Abstract

In this paper a study of two approaches of a meta-algorithm, Meta-CHC-RBF, is presented. The main goal of this algorithm is to automatically design Radial Basis Function Networks (RBFNs) finding a suitable configuration of parameters (automatically adapted to every problem) necessary for the algorithm EvRBF, an evolutionary algorithm for the automatic design of asymmetric RBFNs. The principal difference between two proposals is the type of codification, in the fist one, the meta-algorithm uses binary codification, while in the second one, it implements real codification; affecting this influence of the codification kind in the carried out experimentation. Finally, results show that the first approach yields good marks reducing the computation time, with respect the second one. © 2009 Springer Berlin Heidelberg.