Learning bayesian network equivalence classes with ant colony optimization

Daly, R. and Shen, Q. (2009) Learning bayesian network equivalence classes with ant colony optimization. Journal of Artificial Intelligence Research, 35, pp. 391-447. (doi: 10.1613/jair.2681)

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Publisher's URL: http://www.jair.org/

Abstract

Bayesian networks are a useful tool in the representation of uncertain knowledge. This paper proposes a new algorithm called ACO-E, to learn the structure of a Bayesian network. It does this by conducting a search through the space of equivalence classes of Bayesian networks using Ant Colony Optimization (ACO). To this end, two novel extensions of traditional ACO techniques are proposed and implemented. Firstly, multiple types of moves are allowed. Secondly, moves can be given in terms of indices that are not based on construction graph nodes. The results of testing show that ACO-E performs better than a greedy search and other state-of-the-art and metaheuristic algorithms whilst searching in the space of equivalence classes

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Daly, Dr Ronan
Authors: Daly, R., and Shen, Q.
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
College/School:College of Science and Engineering > School of Computing Science
Journal Name:Journal of Artificial Intelligence Research
Journal Abbr.:J. artif. intell. res.
Publisher:AAAI Press
ISSN:1076-9757
ISSN (Online):1943-5037
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