The role of representations in dynamic knapsack problems


Brankel J., Orbayi M., Uyar S.

APPLICATIONS OF EVOLUTIONARY COMPUTING, PROCEEDINGS, vol.3907, pp.764-775, 2006 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 3907
  • Publication Date: 2006
  • Journal Name: APPLICATIONS OF EVOLUTIONARY COMPUTING, PROCEEDINGS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, EMBASE, MathSciNet, Philosopher's Index, zbMATH
  • Page Numbers: pp.764-775
  • Istanbul Technical University Affiliated: No

Abstract

The effect of different representations has been thoroughly analyzed for evolutionary algorithms in stationary environments. However, the role of representations in dynamic environments has been largely neglected so far. In this paper, we empirically compaxe and analyze three different representations on the basis of a dynamic multi-dimensional knapsack problem. Our results indicate that indirect representations are particularly suitable for the dynamic multi-dimensional knapsack problem, because they implicitly provide a heuristic adaptation mechanism that improves the current solutions after a change.