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A Time-Indexed Formulation for Single-Machine Scheduling Problems : Branch-and-Cut

Author

Listed:
  • van den AKKER, Janna M.

    (Center for Operations Research and Econometrics (CORE), Université catholique de Louvain (UCL), Louvain la Neuve, Belgium)

  • HURKENS, C.A.J.

    (Department of Mathematics and Computing Science, Eindhoven University of Technology, EIndhoven, The Netherlands)

  • SAVELSBERGH, M.W.P.

    (School of Industrial ans Systems Engineering, Georgia Institute of Technology, Atlanta)

Abstract

In Van den Akker, Va, Hoesel, and Savelsbergh [1994], we have studied a tume-indexed formulation for single-machine scheduling problems and have presented a complete characterization of all facet inducing inequalities with right-hand side 1 and 2 for the convex hull of the monotone extension of the set of feasible schedules. In this paper, we discuss the development of a branch-and-cut algorithm based on these facet inducing inequalities. We describe separation algorithms for each class of these inequalities, and elaborate on various other important components of the branch-and-cut algorithm, such as branching strategies, cut generation schemes, and primal heuristics. We present our computational experiences with the algorithm for the problem of minimizing the total weighted completion time on a single machine subject to release dates.

Suggested Citation

  • van den AKKER, Janna M. & HURKENS, C.A.J. & SAVELSBERGH, M.W.P., 1996. "A Time-Indexed Formulation for Single-Machine Scheduling Problems : Branch-and-Cut," LIDAM Discussion Papers CORE 1996016, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  • Handle: RePEc:cor:louvco:1996016
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