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Deriving Filtering Algorithms from Constraint Checkers
RISE., Swedish ICT, SICS, Computer Systems Laboratory.ORCID-id: 0000-0003-3079-8095
2004 (engelsk)Rapport (Annet vitenskapelig)
Abstract [en]

This report deals with global constraints for which the set of solutions can be recognized by an extended finite automaton whose size is bounded by a polynomial in $n$, where $n$ is the number of variables of the corresponding global constraint. By reformulating the automaton as a conjunction of signature and transition constraints we show how to systematically obtain a filtering algorithm. Under some restrictions on the signature and transition constraints this filtering algorithm achieves arc-consistency. An implementation based on some constraints as well as on the metaprogramming facilities of SICStus Prolog is available. For a restricted class of automata we provide a filtering algorithm for the relaxed case, where the violation cost is the minimum number of variables to unassign in order to get back to a solution.

sted, utgiver, år, opplag, sider
Swedish Institute of Computer Science , 2004, 1. , s. 42
Serie
SICS Technical Report, ISSN 1100-3154 ; 2004:08
Emneord [en]
Constraint Programming, Global Constraints, Filtering Algorithms, Finite Automata, Relaxation
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-22068OAI: oai:DiVA.org:ri-22068DiVA, id: diva2:1041610
Tilgjengelig fra: 2016-10-31 Laget: 2016-10-31 Sist oppdatert: 2023-05-05bibliografisk kontrollert

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