On the Complexity of Finding Second-Best Abductive Explanations

Paolo Liberatore; Marco Schaerf

doi:10.1016/j.ijar.2015.05.009

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arXiv · 1204.5859

On the Complexity of Finding Second-Best Abductive Explanations

Paolo Liberatore·Marco Schaerf

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Abstract

While looking for abductive explanations of a given set of manifestations, an ordering between possible solutions is often assumed. The complexity of finding/verifying optimal solutions is already known. In this paper we consider the computational complexity of finding second-best solutions. We consider different orderings, and consider also different possible definitions of what a second-best solution is.

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Paolo Liberatore, Marco Schaerf. 2012-04-26. On the Complexity of Finding Second-Best Abductive Explanations. https://doi.org/10.1016/j.ijar.2015.05.009

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