Sciweavers

403 search results - page 3 / 81
» Variable ranges in linear constraints
Sort
View
UAI
2001
13 years 8 months ago
Linearity Properties of Bayes Nets with Binary Variables
It is "well known" that in linear models: (1) testable constraints on the marginal distribution of observed variables distinguish certain cases in which an unobserved ca...
David Danks, Clark Glymour
ENDM
2010
115views more  ENDM 2010»
13 years 4 months ago
On the knapsack closure of 0-1 Integer Linear Programs
Many inequalities for Mixed-Integer Linear Programs (MILPs) or pure Integer Linear Programs (ILPs) are derived from the Gomory corner relaxation, where all the nonbinding constrai...
Matteo Fischetti, Andrea Lodi
CSCLP
2005
Springer
14 years 26 days ago
Views and Iterators for Generic Constraint Implementations
This paper introduces an architecture for generic constraint implementations based on variable views and range iterators. Views allow, for example, to scale, translate, and negate...
Christian Schulte, Guido Tack
MP
2007
142views more  MP 2007»
13 years 6 months ago
Active-constraint variable ordering for faster feasibility of mixed integer linear programs
The selection of the branching variable can greatly affect the speed of the branch and bound solution of a mixed-integer or integer linear program. Traditional approaches to branc...
Jagat Patel, John W. Chinneck
CP
2005
Springer
14 years 26 days ago
From Linear Relaxations to Global Constraint Propagation
We present a method for propagating linear constraints. Our technique exploits the fact that the interior point method converges on a central point of the polytope. A variable assi...
Claude-Guy Quimper, Alejandro López-Ortiz