An efficient heuristic-based evolutionary algorithm for solving constraint satisfaction problems

V. Tam, P. Stuckey

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2 Citations (Scopus)

Abstract

GENET and EGENET are artificial neural networks with remarkable success in solving hard constraint satisfaction problems (CSPs) such as car sequencing problems. (E)GENET uses the min-conflict heuristic in variable updating to find local minima, and then applies heuristic learning rule(s) to escape the local minima not representing solution(s). In this paper we describe a micro-genetic algorithm (MGA) which generalizes the (E)GENET approach for solving CSPs efficiently. Our proposed MGA integrates the min-conflict heuristic into mutation for reassigning allels (values) to genes (variables). In addition, we derive two methods, based on general principles from evolutionary algorithms, for escaping local minima: Population based learning, and look forward. Our preliminary experimental results showed that this evolutionary approach improved on EGENET in solving certain hard instances of CSPs.

Original languageEnglish
Title of host publicationProceedings - IEEE International Joint Symposia on Intelligence and Systems
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages75-82
Number of pages8
ISBN (Print)078034863X, 9780780348639
DOIs
Publication statusPublished - 1 Jan 1998
Externally publishedYes
Event1998 IEEE International Joint Symposia on Intelligence and Systems - Rockville, United States of America
Duration: 21 May 199823 May 1998

Publication series

NameProceedings - IEEE International Joint Symposia on Intelligence and Systems

Conference

Conference1998 IEEE International Joint Symposia on Intelligence and Systems
Country/TerritoryUnited States of America
CityRockville
Period21/05/9823/05/98

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