Adaptive drift analysis

  • Authors:
  • Benjamin Doerr;Leslie Ann Goldberg

  • Affiliations:
  • Max-Planck-Institut für Informatik, Saarbrücken, Germany;Department of Computer Science, University of Liverpool, Liverpool, UK

  • Venue:
  • PPSN'10 Proceedings of the 11th international conference on Parallel problem solving from nature: Part I
  • Year:
  • 2010

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Abstract

We show that the (1+1) evolutionary algorithm using an arbitrary mutation rate p = c/n, c a constant, finds the optimum of any n-bit pseudo-Boolean linear function f in expected time Θ(n log n). Since previous work shows that universal drift functions cannot exist for c larger than a certain constant, we define drift functions depending on p and f. This seems to be the first time in the theory of evolutionary algorithms that drift functions are used that take into account the particular problem instance.