On General Epistemic Abstract Argumentation Frameworks

Published: 01 Jan 2024, Last Modified: 18 Aug 2024AAMAS 2024EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Epistemic Abstract Argumentation Framework (EAAF) extends Dung's framework (AAF)-a central formalism in AI for modeling disputes among agents-by allowing the representation of epistemic knowledge. EAAF augments AAF with strong and weak epistemic attacks whose intuitive meaning is that an attacked argument is epistemically accepted only if the attacking argument is possibly or certainly rejected, respectively. So far, the semantics of EAAF has been defined only for a restricted class of frameworks, namely acyclic EAAF, where epistemic attacks do not occur in any cycle. In this paper, we provide an intuitive semantics for (general) EAAF that naturally extends that for AAF as well as that for acyclic EAAF.
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