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Constraint Programming Based Lagrangian Relaxation for the Automatic Recording Problem

Author

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  • Meinolf Sellmann
  • Torsten Fahle

Abstract

Whereas CP methods are strong with respect to the detection of local infeasibilities, OR approaches have powerful optimization abilities that ground on tight global bounds on the objective. An integration of propagation ideas from CP and Lagrangian relaxation techniques from OR combines the merits of both approaches. We introduce a general way of how linear optimization constraints can strengthen their propagation abilities via Lagrangian relaxation. The method is evaluated on a set of benchmark problems stemming from a multimedia application. The experiments show the superiority of the combined method compared with a pure OR approach and an algorithm based on two independent optimization constraints. Copyright Kluwer Academic Publishers 2003

Suggested Citation

  • Meinolf Sellmann & Torsten Fahle, 2003. "Constraint Programming Based Lagrangian Relaxation for the Automatic Recording Problem," Annals of Operations Research, Springer, vol. 118(1), pages 17-33, February.
  • Handle: RePEc:spr:annopr:v:118:y:2003:i:1:p:17-33:10.1023/a:1021845304798
    DOI: 10.1023/A:1021845304798
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