propositional knowledge base
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2003 ◽  
Vol 19 ◽  
pp. 1-10 ◽  
Author(s):  
B. Zanuttini

We address the problem of propositional logic-based abduction, i.e., the problem of searching for a best explanation for a given propositional observation according to a given propositional knowledge base. We give a general algorithm, based on the notion of projection; then we study restrictions over the representations of the knowledge base and of the query, and find new polynomial classes of abduction problems.


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