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CIE
2007
Springer
14 years 2 months ago
Computational Complexity of Constraint Satisfaction
Abstract. The input to a constraint satisfaction problem (CSP) consists of a set of variables, each with a domain, and constraints between these variables formulated by relations o...
Heribert Vollmer
CP
2004
Springer
14 years 14 days ago
A Hyper-arc Consistency Algorithm for the Soft Alldifferent Constraint
This paper presents an algorithm that achieves hyper-arc consistency for the soft alldifferent constraint. To this end, we prove and exploit the equivalence with a minimum-cost flo...
Willem Jan van Hoeve
CONSTRAINTS
2010
126views more  CONSTRAINTS 2010»
13 years 8 months ago
Lexicographically-ordered constraint satisfaction problems
Abstract. We describe a simple CSP formalism for handling multi-attribute preference problems with hard constraints, one that combines hard constraints and preferences so the two a...
Eugene C. Freuder, Robert Heffernan, Richard J. Wa...
CATS
2008
13 years 10 months ago
Tractable Cases of the Extended Global Cardinality Constraint
We study the consistency problem for extended global cardinality (EGC) constraints. An EGC constraint consists of a set X of variables, a set D of values, a domain D(x) D for eac...
Marko Samer, Stefan Szeider
PEPM
2007
ACM
14 years 2 months ago
Quasi-terminating logic programs for ensuring the termination of partial evaluation
A logic program strongly quasi-terminates when only a finite number of distinct atoms (modulo variable renaming) are derivable from any given query and computation rule. This noti...
Germán Vidal