Sciweavers

BIRTHDAY
2005
Springer
13 years 10 months ago
Agents with Exact Foreknowledge
Computational experiments are reported involving the concept of foreknowledge, an agent’s direct, unmediated and accurate, but possibly incomplete, awareness of its future includ...
Jim Doran
KCAP
2005
ACM
13 years 10 months ago
Knowledge base reuse through constraint relaxation
Effective reuse of Knowledge Bases (KBs) often entails the expensive task of identifying plausible KB-PS (Problem Solver) combinations. We propose a novel technique based on Const...
Tomas Eric Nordlander, Derek H. Sleeman, Ken N. Br...
LICS
2006
IEEE
13 years 10 months ago
A Characterisation of First-Order Constraint Satisfaction Problems
Abstract. We describe simple algebraic and combinatorial characterisations of finite relational core structures admitting finitely many obstructions. As a consequence, we show th...
Benoit Larose, Cynthia Loten, Claude Tardif
IRI
2006
IEEE
13 years 10 months ago
A new heuristic-based albeit complete method to extract MUCs from unsatisfiable CSPs
When a Constraint Satisfaction Problem (CSP) admits no solution, most current solvers express that the whole search space has been explored unsuccessfully but do not exhibit which...
Éric Grégoire, Bertrand Mazure, C&ea...
ICTAI
2006
IEEE
13 years 10 months ago
Finding Crucial Subproblems to Focus Global Search
Traditional global search heuristics to solve constraint satisfaction problems focus on properties of an individual variable that mandate early search attention. If, however, one ...
Susan L. Epstein, Richard J. Wallace
SARA
2007
Springer
13 years 10 months ago
Tailoring Solver-Independent Constraint Models: A Case Study with Essence' and Minion
In order to apply constraint programming to a particular domain, the problem must first be modelled as a constraint satisfaction problem. There are typically many alternative mode...
Ian P. Gent, Ian Miguel, Andrea Rendl
SARA
2007
Springer
13 years 10 months ago
Reformulating Constraint Satisfaction Problems to Improve Scalability
Constraint Programming is a powerful approach for modeling and solving many combinatorial problems, scalability, however, remains an issue in . Abstraction and reformulation techni...
Kenneth M. Bayer, Martin Michalowski, Berthe Y. Ch...
MFCS
2007
Springer
13 years 10 months ago
Combinatorial Proof that Subprojective Constraint Satisfaction Problems are NP-Complete
Abstract. We introduce a new general polynomial-time constructionthe fibre construction- which reduces any constraint satisfaction problem CSP(H) to the constraint satisfaction pr...
Jaroslav Nesetril, Mark H. Siggers
CPAIOR
2007
Springer
13 years 10 months ago
Preprocessing Expression-Based Constraint Satisfaction Problems for Stochastic Local Search
Abstract. This work presents methods for processing a constraint satisfaction problem (CSP) formulated by an expression-based language, before the CSP is presented to a stochastic ...
Sivan Sabato, Yehuda Naveh
CP
2007
Springer
13 years 10 months ago
Exploiting Past and Future: Pruning by Inconsistent Partial State Dominance
It has recently been shown, for the Constraint Satisfaction Problem (CSP), that the state associated with a node of the search tree built by a backtracking algorithm can be exploit...
Christophe Lecoutre, Lakhdar Sais, Sébastie...