Fast neighborhood search for the single machine total weighted tardiness problem

  • Authors:
  • ÖZlem Ergun;James B. Orlin

  • Affiliations:
  • Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA;Sloan School of Management, Massachusetts Institute of Technology, Cambridge, MA 02139, USA

  • Venue:
  • Operations Research Letters
  • Year:
  • 2006

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Abstract

Most successful heuristics for solving 1||@?w"jT"j are based on swap moves. We present an algorithm which improves the complexity of searching the swap neighborhood from O(n^3) to O(n^2). We show that this result also improves the complexity of the recently developed dynasearch heuristics.