Advisors for incremental propagation

  • Authors:
  • Mikael Z. Lagerkvist;Christian Schulte

  • Affiliations:
  • School of Information and Communication Technology, KTH-Royal Institute of Technology, Sweden;School of Information and Communication Technology, KTH-Royal Institute of Technology, Sweden

  • Venue:
  • CP'07 Proceedings of the 13th international conference on Principles and practice of constraint programming
  • Year:
  • 2007

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Abstract

While incremental propagation for global constraints is recognized to be important, little research has been devoted to how propagator-centered constraint programming systems should support incremental propagation. This paper introduces advisors as a simple and efficient, yet widely applicable method for supporting incremental propagation in a propagator-centered setting. The paper presents how advisors can be used for achieving different forms of incrementality and evaluates cost and benefit for several global constraints.