Title
Study of the polytope of the $${{\,\mathrm{at \text{-} least}\,}}$$ predicate
Abstract
Constraint programming is a powerful tool for modeling various problems in operations research. Its strength lies in the use of predicates, or global high-level constraints, on a few variables to efficiently model complex and varied problem structures. In this paper, we consider the predicate at-least. It bounds the number of variables in a set that may receive a specific value. This is a generalization of the standard logic condition expressed when the sum of binary variables is expressing a lower bound on the cardinality of a set. We have completely determined the convex hull representation of this predicate and provide a polynomial separation algorithm for inclusion in branch-and-bound integer programming software.
Year
DOI
Venue
2019
10.1007/s13042-019-00935-4
International Journal of Machine Learning and Cybernetics
Keywords
Field
DocType
Constraint programming, At-least predicate, Facet-inducing inequalities, Separation algorithm
Discrete mathematics,Polynomial,Upper and lower bounds,Constraint programming,Convex hull,Cardinality,Polytope,Integer programming,Classical logic,Mathematics
Journal
Volume
Issue
ISSN
10
12
1868-808X
Citations 
PageRank 
References 
0
0.34
9
Authors
2
Name
Order
Citations
PageRank
Niko Kaso100.34
Serge Kruk2101.64