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Anytime Computation of Cautious Consequences in Answer Set Programming

  • MARIO ALVIANO (a1), CARMINE DODARO (a1) and FRANCESCO RICCA (a1)
Abstract
Abstract

Query answering in Answer Set Programming (ASP) is usually solved by computing (a subset of) the cautious consequences of a logic program. This task is computationally very hard, and there are programs for which computing cautious consequences is not viable in reasonable time. However, current ASP solvers produce the (whole) set of cautious consequences only at the end of their computation. This paper reports on strategies for computing cautious consequences, also introducing anytime algorithms able to produce sound answers during the computation.

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Theory and Practice of Logic Programming
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Anytime Computation of Cautious Consequences in Answer Set Programming

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