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CP
2005
Springer
14 years 6 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
14 years 6 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
14 years 6 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
14 years 7 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
15 years 1 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