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Probabilistic Semantics for Cost Based Abduction

Brown University. Computer Science DepartmentEugene CharniakSolomon Eyal Shimony

出版	Brown University, Department of Computer Science, 1990
URL	http://books.google.com.hk/books?id=jpZeHQAACAAJ&hl=&source=gbs_api

註釋Abstract: "Cost-based abduction attempts to find the best explanation for a set of facts by finding a minimal cost proof for the facts. The costs are computed by summing the costs of the assumptions necessary for the proof plus the cost of the rules. We examine existing methods for constructing explanations (proofs), as a minimization problem on a DAG. We then define a probabilistic semantics for the costs, and prove the equivalence of the cost minimization problem to the Bayesian network MAP solution of the system."