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Full Constraint Satisfaction Problems
SIAM Journal on Computing, 2006Feder and Vardi have conjectured that all constraint satisfaction problems to a fixed structure (constraint language) are polynomial or NP-complete. This so-called dichotomy conjecture remains open, although it has been proved in a number of special cases.
Tomás Feder, Pavol Hell
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Belief Constraint Satisfaction Problems
2015 IEEE/ACS 12th International Conference of Computer Systems and Applications (AICCSA), 2015Every problem that can be described by a set of variables and a set of constraints among those variables can easily be cast as a Constraint Satisfaction Problem (CSP). In spite of its simplicity, the standard CSP has proven unsuited for modeling ill-defined decision problems, especially, under uncertain circumstances.
Aouatef Rouahi +2 more
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Constraint satisfaction problems
ACM SIGLOG News, 2018In this paper we briefly survey the history of the Dichotomy Conjecture for the Constraint Satisfaction problem, that was posed 25 years ago by Feder and Vardi. We outline some of the approaches to this conjecture, and then describe an algorithm that yields an answer to the conjecture.
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An Algorithm for Constraint Satisfaction Problem
2017 IEEE 47th International Symposium on Multiple-Valued Logic (ISMVL), 2017Many natural combinatorial problems can be expressed as constraint satisfaction problems. This class of problems is known to be NP-complete in general, but certain restrictions on theform of the constraints can ensure tractability. The standard way to parameterize interesting subclasses of the constraint satisfaction problem is via finite constraint ...
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Constraint Satisfaction Technology for Stacking Problem with Ordered Constraints
The stacking problem with ordered constraints (SPOC) is a typical combinatorial optimization problem and NP-hard character. In order to simplify problem, it is treated as a constraint satisfaction problem. A constraint satisfaction model is given.
Dong-liang Hou +3 more
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Constraint Satisfaction Differential Problems
2003System dynamics is often modeled by means of parametric differential equations. Despite their expressive power, they are difficult to reason about and make safe decisions, given their non-linearity and the important effects that the uncertainty on data may cause.
Jorge Cruz 0001, Pedro Barahona
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Constraint Satisfaction Problems: An Overview
AI Communications, 1989Many AI problems can be formulated as Constraint Satisfaction Problems (CSP). Using a systematic search process with backtracking this kind of problems can be solved, but this method is very inefficient. Other methods solving CSP have been developed showing a better performance.
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On the design of constraint satisfaction problems
1994The development of a system based on constraint programming includes two main phases: first, the problem to be solved is formulated as a constraint satisfaction problem; then, the formulation is implemented in a constraint-programming language. Constraint-programming research has mainly concentrated on the second phase, by studying powerful declarative
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Constraint satisfaction: the approximability of minimization problems
Proceedings of Computational Complexity. Twelfth Annual IEEE Conference, 2002This paper continues the work initiated by N. Creignou (1995) and S. Khanna et al. (1997) who classify maximization problems derived from Boolean constraint satisfaction. We study the approximability of minimization problems derived thence. A problem in this framework is characterized by a collection F of "constraints" (i.e., functions f: {0,1}/sup k ...
Sanjeev Khanna +2 more
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SPECIFIC CONSTRAINT HANDLING IN CONSTRAINT SATISFACTION PROBLEMS
International Journal on Artificial Intelligence Tools, 1994Abundant literatures exist on consistency techniques for solving Constraint Satisfaction Problems (CSPs). These literatures, however, focused mainly on finding efficient general techniques to achieve network consistency and to solve CSPs. So far, many techniques have been reported, e.g., node consistency, arc consistency, path consistency, k ...
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