Learning Bayesian Network Structure Using a MultiExpert Approach

The learning of a Bayesian network structure, especially in the case of wide domains, can be a complex, time-consuming and imprecise process. Therefore, the interest of the scienti ̄c community in learning Bayesian network structure from data is increasing: many techniques or disciplines such as data mining, text categorization, and ontology building, can take advantage from this process. In the literature, there are many structural learning algorithms but none of them provides good results for each dataset. This paper introduces a method for structural learning of Bayesian networks based on a MultiExpert approach. The proposed method combines ̄ve structural learning algorithms according to a majority vote combining rule for maximizing their e®ectiveness and, more generally, the results obtained by using of a single algorithm. This paper shows an experimental validation of the proposed algorithm on standard datasets.