Gradient Based Stochastic Mutation Operators in Evolutionary Multi-objective Optimization

  • Authors:
  • Pradyumn Kumar Shukla

  • Affiliations:
  • Institute of Numerical Mathematics, Department of Mathematics, Dresden University of Technology, Dresden PIN 01069, Germany

  • Venue:
  • ICANNGA '07 Proceedings of the 8th international conference on Adaptive and Natural Computing Algorithms, Part I
  • Year:
  • 2007

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Abstract

Evolutionary algorithms have been adequately applied in solving single and multi-objective optimization problems. In the single-objective case various studies have shown the usefulness of combining gradient based classical search principles with evolutionary algorithms. However there seems to be a dearth of such studies for the multi-objective case. In this paper, we take two classical search operators and discuss their use as a local search operator in a state-of-the-art evolutionary algorithm. These operators require gradient information which is obtained using a stochastic perturbation technique requiring only two function evaluations. Computational studies on a number of test problems of varying complexity demonstrate the efficiency of hybrid algorithms in solving a large class of complex multi-objective optimization problems.