A pattern based evolutionary approach to prediction computation in XCSF

  • Authors:
  • Ali Hamzeh;Adel Rahmani

  • Affiliations:
  • Department of Computer Engineering, Iran University of Science and Technology, Tehran, Iran;Department of Computer Engineering, Iran University of Science and Technology, Tehran, Iran

  • Venue:
  • ICNC'06 Proceedings of the Second international conference on Advances in Natural Computation - Volume Part I
  • Year:
  • 2006

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Abstract

XCSF is a new version of XCS with the ability of computing the environmental rewards. In the early versions of XCSF, this computation was done by approximating the coefficients of the associated polynomial reward functions. However, recent researches show that this approximation method suffers from some significant drawbacks such as input range dependency. In this paper, we propose a new method to approximate the reward functions using Genetic Algorithms. Our proposed method uses a new representation scheme for chromosomes and some newly introduced pattern based operators which are adapted for function approximation.