Approximate coherence-based reasoning

ABSTRACT. It has long been recognized that the concept of inconsistency is a central part of commonsense reasoning. In this issue, a number of authors have explored the idea of reasoning with maximal consistent subsets of an inconsistent stratified knowledge base. This paradigm, often called "coherent-based reasoning", has resulted in some interesting proposals for paraconsistent reasoning, non-monotonic reasoning, and argumentation systems. Unfortunately, coherent-based reasoning is computationally very expensive. This paper harnesses the approach of approximate entailment by Schaerf and Cadoli [SCH 95] to develop the concept of "approximate coherent-based reasoning". To this end, we begin to present a multi-modal propositional logic that incorporates two dual families of modalities: 2S and 3S defined for each subset S of the set of atomic propositions. The resource parameter S indicates what atoms are taken into account when evaluating formulas. Next, we define re...

• Type: Journal
• Year: 2002
• Where: JANCL
• Authors: Frédéric Koriche
• Keywords: Coherent-based Reasoning, JANCL 2002, Maximal Consistent Subsets, Reasoning