Performance guarantees of local search for multiprocessor scheduling

P. Schuurman, T. Vredeveld

    Research output: Contribution to journalArticleAcademicpeer-review

    53 Citations (Scopus)


    Increasing interest has recently been shown in analyzing the worst-case behavior of local search algorithms. In particular, the quality of local optima and the time needed to find the local optima by the simplest form of local search has been studied. This paper deals with worst-case performance of local search algorithms for makespan minimization on parallel machines. We analyze the quality of the local optima obtained by iterative improvement over the jump, swap, multi-exchange, and the newly defined push neighborhoods. Finally, for the jump neighborhood we provide bounds on the number of local search steps required to find a local optimum.
    Original languageEnglish
    Pages (from-to)52-63
    JournalINFORMS Journal on Computing
    Issue number1
    Publication statusPublished - 2007


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