Impact of neuron models and network structure on evolving modular robot neural network controllers

  • Authors:
  • Leo Cazenille;Nicolas Bredeche;Heiko Hamann;Jürgen Stradner

  • Affiliations:
  • Univ. Paris-Sud, CNRS, INRIA, Orsay, France;Univ. Paris-Sud, CNRS, INRIA, Orsay, France;Univ. Graz, Graz, Austria;Univ. Graz, Graz, Austria

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

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Abstract

This paper investigates the properties required to evolve Artificial Neural Networks for distributed control in modular robotics, which typically involves non-linear dynamics and complex interactions in the sensori-motor space. We investigate the relation between macro-scale properties (such as modularity and regularity) and micro-scale properties in Neural Network controllers. We show how neurons capable of multiplicative-like arithmetic operations may increase the performance of controllers in several ways whenever challenging control problems with non-linear dynamics are involved. This paper provides evidence that performance and robustness of evolved controllers can be improved by a combination of carefully chosen micro- and macro-scale neural network properties.