An Evolutionary ILS-Perturbation Technique

  • Authors:
  • Manuel Lozano;C. García-Martínez

  • Affiliations:
  • Department of Computer Science and Artificial Intelligence, University of Granada, Granada, Spain 18071;Department of Computing and Numerical Analysis, University of Córdoba, Córdoba, Spain 14071

  • Venue:
  • HM '08 Proceedings of the 5th International Workshop on Hybrid Metaheuristics
  • Year:
  • 2008

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Abstract

This contribution proposes a new perturbation technique for the iterated local search metaheuristic, which consists in a micro evolutionary algorithm that effectively explores the neighborhood of the solution that should undergo the perturbation operator. Its main idea is to play the same role as the standard ILS-perturbation operator, but more satisfactorily. A new model of integrative hybrid metaheuristic is obtained by incorporating the proposed perturbation approach into the iterated local search algorithm, because the evolutionary algorithm becomes a subordinate component of iterated local search. The benefits of the proposal in comparison to other iterated local search algorithms proposed in the literature to deal with binary optimization problems are experimentally shown.