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On Broken Triangles

Cooper, Martin C. and El Mouelhi, Achref and Terrioux, Cyril and Zanuttini, Bruno On Broken Triangles. (2016) In: 25th International Joint Conference on Artificial Intelligence (IJCAI 2016), 9 July 2016 - 15 July 2016 (New York City, United States).

(Document in English)

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Official URL: https://www.ijcai.org/Proceedings/16/Papers/617.pdf


A binary CSP instance satisfying the broken-triangle property (BTP) can be solved in polynomial time. Unfortunately, in practice, few instances satisfy the BTP. We show that a local version of the BTP allows the merging of domain values in binary CSPs, thus providing a novel polynomial-time reduction operation. Experimental trials on benchmark instances demonstrate a significant decrease in instance size for certain classes of problems. We show that BTP-merging can be generalised to instances with constraints of arbitrary arity. A directional version of the general-arity BTP then allows us to extend the BTP tractable class previously defined only for binary CSP.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to AAAI Press editor. This papers appears in IJCAI'16 ISBN 978-1-57735-770-4 (volumes 1-3) ISBN 978-1-57735-771-1 (volumes 4-6)The definitive version is available at: https://www.ijcai.org/proceedings/2016
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Other partners > Aix-Marseille Université - AMU (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Université de Caen Basse-Normandie (FRANCE)
Laboratory name:
Deposited On:28 Apr 2017 13:19

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