Sciweavers

CP
1999
Springer
14 years 3 months ago
The Theory of Discrete Lagrange Multipliers for Nonlinear Discrete Optimization
In this paper we present a Lagrange-multiplier formulation of discrete constrained optimization problems, the associated discrete-space first-order necessary and sufficient condit...
Benjamin W. Wah, Zhe Wu
CP
1999
Springer
14 years 3 months ago
Search Procedures and Parallelism in Constraint Programming
Abstract. In this paper, we present a major improvement in the search procedures in constraint programming. First, we integrate various search procedures from AI and OR. Second, we...
Laurent Perron
CP
1999
Springer
14 years 3 months ago
Rewriting Numeric Constraint Satisfaction Problems for Consistency Algorithms
Reformulating constraint satisfaction problems (CSPs) in lower arity is a common procedure when computing consistency. Lower arity CSPs are simpler to treat than high arity CSPs. ...
Claudio Lottaz
CP
1999
Springer
14 years 3 months ago
A Framework for Constraint Programming Based Column Generation
Column generation is a state-of-the-art method for optimally solving di cult large-scale optimization problems such as airline crew assignment. We show how to apply column generati...
Ulrich Junker, Stefan E. Karisch, Niklas Kohl, Bo ...
CP
1999
Springer
14 years 3 months ago
The Goldilocks Problem
A lot of work in constraint satisfaction has been focused on finding solutions to difficult problems. Many real life problems however, while not extremely complicated, have a huge...
Tudor Hulubei, Eugene C. Freuder
CP
1999
Springer
14 years 3 months ago
Optimal Distributed Arc-Consistency
This paper presents DisAC-9, the first optimal distributed algorithm performing the arc-consistency of a constraint network. Our method is optimal according to the number of messa...
Youssef Hamadi
CP
1999
Springer
14 years 3 months ago
An Interval Constraint Approach to Handle Parametric Ordinary Differential Equations for Decision Support
The behaviour of many systems is naturally modelled by a set of ordinary differential equations (ODEs) which are parametric. Since decisions are often based on relations over these...
Jorge Cruz, Pedro Barahona
CP
1999
Springer
14 years 3 months ago
Operational Equivalence of CHR Programs and Constraints
Slim Abdennadher, Thom W. Frühwirth