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Enhancing Constraint Propagation with Composition Operators

Laurent Granvilliers·Eric Monfroy
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Abstract

Constraint propagation is a general algorithmic approach for pruning the search space of a CSP. In a uniform way, K. R. Apt has defined a computation as an iteration of reduction functions over a domain. He has also demonstrated the need for integrating static properties of reduction functions (commutativity and semi-commutativity) to design specialized algorithms such as AC3 and DAC. We introduce here a set of operators for modeling compositions of reduction functions. Two of the major goals are to tackle parallel computations, and dynamic behaviours (such as slow convergence).

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Laurent Granvilliers, Eric Monfroy. 2001-07-02. Enhancing Constraint Propagation with Composition Operators. https://arxiv.org/abs/cs/0107002

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