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The Rough Guide to Constraint Propagation

Krzysztof R. Apt
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Abstract

We provide here a simple, yet very general framework that allows us to explain several constraint propagation algorithms in a systematic way. In particular, using the notions commutativity and semi-commutativity, we show how the well-known AC-3, PC-2, DAC and DPC algorithms are instances of a single generic algorithm. The work reported here extends and simplifies that of Apt, cs.AI/9811024.

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Krzysztof R. Apt. 1999-09-08. The Rough Guide to Constraint Propagation. https://arxiv.org/abs/cs/9909009

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