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CP
2005
Springer
13 years 10 months ago
Bounds of Graph Characteristics
Abstract. This report presents a basic scheme for deriving systematically a filtering algorithm from the graph properties based representation of global constraints. This scheme i...
Nicolas Beldiceanu, Thierry Petit, Guillaume Rocha...
CP
2005
Springer
13 years 10 months ago
Graph Invariants as Necessary Conditions for Global Constraints
Abstract. This article presents a database of about 200 graph invariants for deriving systematically necessary conditions from the graph properties based representation of global c...
Nicolas Beldiceanu, Mats Carlsson, Jean-Xavier Ram...
CPAIOR
2007
Springer
13 years 10 months ago
A Global Constraint for Total Weighted Completion Time
We introduce a novel global constraint for the total weighted completion time of activities on a single unary capacity resource. For propagating the constraint, an O(n4 ) algorithm...
András Kovács, J. Christopher Beck
CPAIOR
2009
Springer
13 years 11 months ago
Sequencing and Counting with the multicost-regular Constraint
This paper introduces a global constraint encapsulating a regular constraint together with several cumulative costs. It is motivated in the context of personnel scheduling problems...
Julien Menana, Sophie Demassey
CP
2009
Springer
14 years 5 months ago
A Constraint on the Number of Distinct Vectors with Application to Localization
Abstract. This paper introduces a generalization of the nvalue constraint that bounds the number of distinct values taken by a set of variables.The generalized constraint (called n...
Gilles Chabert, Luc Jaulin, Xavier Lorca