Formalising an aspect of argument strength: degrees of attackability

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Abstract

This paper formally studies a notion of dialectical argument strength in terms of the number of ways in which an argument can be successfully attacked in expansions of an abstract argumentation framework. The proposed model is abstract but its design is motivated by the wish to avoid overly limiting assumptions that may not hold in particular dialogue contexts or in particular structured accounts of argumentation. It is shown that most principles for gradual argument acceptability proposed in the literature fail to hold for the proposed notion of dialectical strength, which clarifies their rational foundations and highlights the importance of distinguishing between logical, dialectical and rhetorical argument strength.

Original languageEnglish
Title of host publicationComputational Models of Argument. Proceedings of COMMA 2022
EditorsFrancesca Toni, Sylwia Polberg, Richard Booth, Martin Caminada, Hiroyuki Kido
PublisherIOS Press
Pages296-307
Number of pages12
Volume353
ISBN (Electronic)978-1-64368-307-2
ISBN (Print)978-1-64368-306-5
DOIs
Publication statusPublished - 7 Sept 2022

Publication series

NameFrontiers in Artificial Intelligence and Applications
PublisherIOS Press
Volume353
ISSN (Print)0922-6389
ISSN (Electronic)1879-8314

Keywords

  • Dialectical argument strength
  • Structure of arguments
  • Nature of attack

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