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Published in:
2012 | OriginalPaper | Chapter
Supporting Argumentation Systems by Graph Representation and Computation
Authors : Jérôme Fortin, Rallou Thomopoulos, Jean-Rémi Bourguet, Marie-Laure Mugnier
Published in: Graph Structures for Knowledge Representation and Reasoning
Publisher: Springer Berlin Heidelberg
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Argumentation is a reasoning model based on arguments and on attacks between arguments. It consists in evaluating the acceptability of arguments, according to a given semantics. Due to its generality, Dung’s framework for abstract argumentation systems, proposed in 1995, is a reference in the domain. Argumentation systems are commonly represented by graph structures, where nodes and edges respectively represent arguments and attacks between arguments. However beyond this graphical support, graph operations have not been considered as reasoning tools in argumentation systems. This paper proposes a conceptual graph representation of an argumentation system and a computation of argument acceptability relying on conceptual graph default rules.