Experimental pool design: input, output and combination strategies for scatter search

  • Authors:
  • Peter Greistorfer

  • Affiliations:
  • Institut für Industrie und Fertigungswirtschaft, Karl-Franzens-Universität, Graz, Austria

  • Venue:
  • Metaheuristics
  • Year:
  • 2004

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Abstract

We investigate several versions of a tabu scatter search heuristic to solve permutation type optimization problems. The focus lies on the design of the three main components which are comprised in every pool-oriented method. These components are the input and output procedures, which are responsible for pool maintenance and determine the transfer of elite solutions, and a solution combination method which must effectively combine a set of elite solutions. We propose several methods for each of these three components and evaluate their combinations as heuristic design variants on a sample set of capacitated Chinese postman instances. Descriptive results are discussed in detail and supported by the testing of a statistical hypothesis.