Investigations in meta-GAs: panaceas or pipe dreams?

  • Authors:
  • Jeff Clune;Sheni Goings;Bill Punch;Eric Goodman

  • Affiliations:
  • Michigan State University;Michigan State University;Michigan State University;Michigan State University

  • Venue:
  • GECCO '05 Proceedings of the 7th annual workshop on Genetic and evolutionary computation
  • Year:
  • 2005

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Abstract

A meta-GA (GA within a GA) is used to investigate evolving the parameter settings of genetic operators for genetic and evolutionary algorithms (GEA) in the hope of creating a self-adaptive GEA. We report three findings. First, the meta-GA can adapt its genetic operators to different problems and thereby perform well on average across diverse problems. Second, the meta-GA can change its parameters during the course of a run—seemingly a good idea—but this behavior may actually decrease performance. Finally, the genetic operator configurations the meta-GA evolves are far from optimal. We conclude that, while meta-GAs show promise for automating some parameter configurations, they are not likely to replace manually configured genetic and evolutionary algorithms without innovative alteration.