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A parametric propagator for pairs of SUM constraints with a discrete convexity property
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science. (ASTRA)
Mines Nantes, TASC CNRS INRIA, F-44307 Nantes, France.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science. (ASTRA)
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science. (ASTRA)
2016 (English)In: Artificial Intelligence, ISSN 0004-3702, E-ISSN 1872-7921, Vol. 241, 170-190 p.Article in journal (Refereed) Published
Abstract [en]

We introduce a propagator for pairs of SUM constraints, where the expressions in the sums respect a form of convexity. This propagator is parametric and can be instantiated for various concrete pairs, including DEVIATION, SPREAD, and the conjunction of LINEAR(<=) and AMONG. We show that despite its generality, our propagator is competitive in theory and practice with state-of-the-art propagators.

Place, publisher, year, edition, pages
2016. Vol. 241, 170-190 p.
National Category
Computer Science
Identifiers
URN: urn:nbn:se:uu:diva-309537DOI: 10.1016/j.artint.2016.08.006ISI: 000387518000007OAI: oai:DiVA.org:uu-309537DiVA: diva2:1052004
Funder
Swedish Research Council, 2011-6133, 2012-4908
Available from: 2016-09-14 Created: 2016-12-05 Last updated: 2016-12-15Bibliographically approved

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