A First Practical Algorithm for High Levels of Relational Consistency

Consistency properties and algorithms for achieving them are at the heart of the success of Constraint Programming. In this paper, we study the relational consistency property R(,m)C, which is equivalent to m-wise consistency proposed in relational databases. We also define wR(,m)C, a weaker variant of this property. We propose an algorithm for enforcing these properties on a Constraint Satisfaction Problem by tightening the existing relations and without introducing new ones. We empirically show that wR(,m)C solves in a backtrackfree manner all the instances of some CSP benchmark classes, thus hinting at the tractability of those classes.

• Type: Conference
• Year: 2010
• Where: AAAI
• Authors: Shant Karakashian, Robert J. Woodward, Christopher G. Reeson, Berthe Y. Choueiry, Christian Bessiere
• Keywords: AAAI 2010, Consistency, Consistency Properties, Intelligent Agents, Relational Consistency Property