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On modelling burdens and standards of proof in structured argumentation
Henry Prakken, Giovanni Sartor
83 - 92
10.3233/978-1-60750-981-3-83
Frontiers in Artificial Intelligence and Applications
Volume 235: Legal Knowledge and Information Systems
Abstract

A formal model is proposed of argumentation with burdens and standards of proof, overcoming shortcomings of earlier work. The model is based on a distinction between default and inverted burdens of proof. This distinction is formalised by adapting the definition of defeat of the ASPIC+ framework for structured argumentation. Since ASPIC+ generates abstract argumentation frameworks, the model is thus given a Dungean semantics. It is shown to adequately capture shifting proof burdens as well as Carneades' definitions of proof standards.

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