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» Constraints in Non-Boolean Contexts
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ICLP
2011
Springer
12 years 8 months ago
Constraints in Non-Boolean Contexts
In high-level constraint modelling languages, constraints can occur in non-Boolean contexts: implicitly, in the form of partial functions, or more explicitly, in the form of const...
Leslie De Koninck, Sebastian Brand, Peter J. Stuck...
ICALP
2007
Springer
13 years 10 months ago
Universal Algebra and Hardness Results for Constraint Satisfaction Problems
We present algebraic conditions on constraint languages Γ that ensure the hardness of the constraint satisfaction problem CSP(Γ) for complexity classes L, NL, P, NP and ModpL. Th...
Benoit Larose, Pascal Tesson
IPL
2000
94views more  IPL 2000»
13 years 4 months ago
On rewrite constraints and context unification
We show that stratified context unification, which is one of the most expressive fragments of context unification known to be decidable, is equivalent to the satisfiability proble...
Joachim Niehren, Sophie Tison, Ralf Treinen
JAIR
2000
105views more  JAIR 2000»
13 years 4 months ago
Reasoning on Interval and Point-based Disjunctive Metric Constraints in Temporal Contexts
We introduce a temporal model for reasoning on disjunctive metric constraints on intervals and time points in temporal contexts. This temporal model is composed of a labeled tempo...
Federico Barber