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CP
2006
Springer
13 years 11 months ago
The ROOTS Constraint
A wide range of counting and occurrence constraints can be specified with just two global primitives: the Range constraint, which computes the range of values used by a sequence of...
Christian Bessière, Emmanuel Hebrard, Brahi...
CP
2008
Springer
13 years 9 months ago
Flow-Based Propagators for the SEQUENCE and Related Global Constraints
We propose new filtering algorithms for the SEQUENCE constraint and some extensions of the SEQUENCE constraint based on network flows. We enforce domain consistency on the SEQUENCE...
Michael J. Maher, Nina Narodytska, Claude-Guy Quim...
CORR
2011
Springer
207views Education» more  CORR 2011»
13 years 2 months ago
The AllDifferent Constraint with Precedences
We propose ALLDIFFPREC, a new global constraint that combines together an ALLDIFFERENT constraint with precedence constraints that strictly order given pairs of variables. We ident...
Christian Bessiere, Nina Narodytska, Claude-Guy Qu...
KR
2010
Springer
14 years 7 days ago
Tractable Answer-Set Programming with Weight Constraints: Bounded Treewidth Is not Enough
Cardinality constraints or, more generally, weight constraints are well recognized as an important extension of answer-set programming. Clearly, all common algorithmic tasks relat...
Reinhard Pichler, Stefan Rümmele, Stefan Szei...
SCP
1998
107views more  SCP 1998»
13 years 7 months ago
A Distributed Arc-Consistency Algorithm
Consistency techniques are an e cient way of tackling constraint satisfaction problems (CSP). In particular, various arc-consistency algorithms have been designed such as the time...
T. Nguyen, Yves Deville