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Sweep as a generic pruning technique applied to the non-overlapping rectangles constraint
RISE - Research Institutes of Sweden, ICT, SICS.
RISE, Swedish ICT, SICS, Computer Systems Laboratory.ORCID iD: 0000-0003-3079-8095
2001 (English)Conference paper, Published paper (Refereed)
Abstract [en]

We first present a generic pruning technique, which aggregates several constraints sharing some variables. The method is derived from an idea called sweep, which is extensively used, in computational geometry. A first benefit of this technique comes from the fact that it can be applied on several families of global constraints. A second main advantage is that it does not lead to any memory consumption problem since it only requires temporary memory that can be reclaimed after each invocation of the method. We then specialise this technique to the non-overlapping rectangles constraint, describe several optimisations, and give an empirical evaluation based on six sets of test instances with different characteristics.

Place, publisher, year, edition, pages
2001, 1.
Series
LNCS ; 2239
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:ri:diva-22593DOI: 10.1007/3-540-45578-7_26OAI: oai:DiVA.org:ri-22593DiVA, id: diva2:1042158
Conference
Principles and Practice of Constraint Programming (CP 2001): 7th International Conference, 26 Nov - 1 Dec 2001, Paphos, Cyprus
Note

DOI 10.1007/3-540-45578-7_26. Preprint available as SICS Technical Report T2001-13.

Available from: 2016-10-31 Created: 2016-10-31 Last updated: 2018-08-24Bibliographically approved

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Carlsson, Mats

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