A developmental model of neural computation using cartesian genetic programming

  • Authors:
  • Gul Muhammad Khan;Julian F. Miller;David M. Halliday

  • Affiliations:
  • University of York, York, PR, United Kingdom;University of York, York, PR, United Kingdom;University of York, York, PR, United Kingdom

  • Venue:
  • Proceedings of the 9th annual conference companion on Genetic and evolutionary computation
  • Year:
  • 2007

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Abstract

The brain has long been seen as a powerful analogy from which novel computational techniques could be devised. However, most artificial neural network approaches have ignored the genetic basis of neural functions. In this paper we describe a radically different approach. We have devised a compartmental model of a neuron as a collection of seven chromosomes encoding distinct computational functions representing aspects of real neurons. This model allows neurons, dendrites, and axon branches to grow, die and change while solving a computational problem. This also causes the synaptic morphology to change and affect the information processing. Since the appropriate computational equivalent functions of neural computation are unknown, we have used a form of genetic programming known as Cartesian Genetic Programming (CGP) to obtain these functions. We have evaluated the learning potential of this system in the context of solving a well known agent based learning scenario, known as wumpus world and obtained promising results.