A Self-Adaptive Classifier System

  • Authors:
  • Jacob Hurst;Larry Bull

  • Affiliations:
  • -;-

  • Venue:
  • IWLCS '00 Revised Papers from the Third International Workshop on Advances in Learning Classifier Systems
  • Year:
  • 2000

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Abstract

The use and benefits of self-adaptive parameters, particularly mutation, are well-known within evolutionary computing. In this paper we examine the use of parameter self-adaptation in Michigan-style Classifier Systems with the aim of improving their performance and ease of use. We implement a fully self-adaptive ZCS classifier and examine its performance in a multi-step environment. It is shown that the mutation rate, learning rate, discount factor and tax rate can be developed along with an appropriate solution/rule-base, resulting in improved performance over results using fixed rate parameters. We go on to show that the benefits of self-adaptation are particularly marked in non-stationary environments.