Turbocharging Treewidth-Bounded Bayesian Network Structure Learning
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We present a new approach for learning the structure of a treewidth-bounded Bayesian Network (BN). The key to our approach is applying an exact method (based on MaxSAT) locally, to improve the score of a heuristically computed BN. This approach allows us to scale the power of exact methods—so far only applicable to BNs with several dozens of nodes—to large BNs with several thousands of nodes. Our experiments show that our approach outperforms a state-of-the-art heuristic method.
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