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A Factor Tree Inference Algorithm for Bayesian Networks and its Applications

In a Bayesian network, a probabilistic inference is the procedure of computing the posterior probability of query variables given a collection of evidences. We propose an algorithm that efficiently carries out the inferences whose query variables and evidence variables are restricted to a subset of the set of the variables in a BN. The algorithm successfully combines the advantages of two popular inference algorithms – variable elimination and clique tree propagation. We empirically demonstrate its computational efficiency in an affective computing domain.


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