Exponential neighborhood search for a parallel machine scheduling problem

  • Authors:
  • Y. A. Rios-Solis;F. Sourd

  • Affiliations:
  • LIP6-University of Paris VI, 4 Place Jussieu, 75252 Paris Cedex 05, France;LIP6-University of Paris VI, 4 Place Jussieu, 75252 Paris Cedex 05, France

  • Venue:
  • Computers and Operations Research
  • Year:
  • 2008

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Abstract

We consider the parallel machine scheduling problem where jobs have different earliness-tardiness penalties and a restrictive common due date. This problem is NP-hard in the strong sense. In this paper we define an exponential size neighborhood for this problem and prove that finding the local minimum in it is an NP-hard problem. The main contribution of this paper is to propose a pseudo-polynomial algorithm that finds the best solution of the exponential neighborhood. Additionally, we present some computational results.