[PDF] Top 20 Forbidden patterns in constraint satisfaction problems

... The forbidden subproblem is shown in Figure ...whose constraint graph is a tree satisfies the broken-triangle property for some ordering of its variables; furthermore such an ordering can be ... Voir le document complet

... elimination patterns described in this paper to arbitrary-arity CSP instances (perhaps using one of the possible definitions of microstructure for constraints of arbitrary arity [25] )? A partial positive ... Voir le document complet

... elimination in a constraint satisfaction problem (CSP) can be used in preprocessing or during search to reduce search space ...existential patterns, in arc- consistent CSP ... Voir le document complet

... the constraint satisfaction problem or CSP) consists of a generic instance (in the case of the CSP, a set of variables, their domains and a set of constraints) together with a yes-no question (Is ... Voir le document complet

... (constraint satisfaction problem) is NP-complete, even in the case when all constraints are binary, certain classes of instances are ...forbidding patterns (where a pattern is simply a compact ... Voir le document complet

... for constraint languages over infinite domains, it is natural to restrict attention to classes of constraints which commonly occur in real ap- ...definition in (Q; <), the ordered rational ... Voir le document complet

... 1995. Constraint consistency techniques for continuous ...Lausanne]. In this paper, we propose to extend the method of generating Quad Trees in order to take into account, in CSPs, binary ... Voir le document complet

... IRIN, Universite & de Nantes, 2 Rue de la Houssinie%re, BP 92208, F-44322 Nantes Cedex 3, France Abstract The aim of this paper is to provide a new model of fuzzy or vague properties according to linguistic notions ... Voir le document complet

... coNP problems not believed to be in P are few in number, but keep in mind that CSP(M) is a promise problem and constructing very hard NP ∩ coNP promise problems is easy by manipulating ... Voir le document complet

... required: in the DDD framework, this assumption does not provide any good property, contrarily to what happens in the classical decision diagram ...constraints satisfaction problem (a TCSP or a DTP ... Voir le document complet

... clique constraint propaga- tion inside toulbar2 (version ...solver in C++. Among the various benchmarks from [19] (available in LP, WCNF, WCSP, UAI, and MiniZinc formats) where cplex reports that ... Voir le document complet

... an in- stance. Variable elimination in the constraint sat- isfaction problem (CSP) can be used in prepro- cessing or during search to reduce search space ...terns, in arc-consistent CSP ... Voir le document complet

... the problems and state a different dichotomy ...problem in industry consists in reducing it to a satisfaction problem over propositional logic and using a SAT ...and constraint ... Voir le document complet

... “literals” in a single constraint may relate different ...DTP problems can not be solved online with the guarantee that the response will be given in polynomial time: checking the consistency ... Voir le document complet

... prove in this paper that all the cases that were considered by Creigou [Cre95] and Khanna and Sudan [KS96] in the dichotomy theorem become APX -hard and also that most of the trivial maximization ... Voir le document complet

... illustrated in the 3-variable instance shown in Fig. 2 . In order to avoid cluttering up figures with broken lines linking each pair of incompatible assignments, in all figures illustrating ... Voir le document complet

... Introduction Constraint Programming (CP) is widely used to express and solve combinatorial ...a constraint network, efficient solving techniques generate a solution satisfying the constraints, if such a ... Voir le document complet

... decomposition. In ranking problems, it may also be interesting [ 9 , 18 ] to predict partial rather than complete rankings, abstaining to make a precise prediction in presence of too little ... Voir le document complet

... a constraint problem by a human user. In such cases, it is highly desirable that the person who interactively solves the problem is not given the choice to select values that do not lead to ...diagram. ... Voir le document complet

... Integration in tree search methods The heuristic presented previously can be grafted into tree search methods, such as discrepancy search or chronological ...discrepancies. In the following of this section, ... Voir le document complet