Argumentation as a general framework for uncertain reasoning

  • Authors:
  • John Fox;Paul Krause;Morten Elvang-Gøransson

  • Affiliations:
  • Advanced Computation Laboratory, Imperial Cancer Research Fund, London, UK;Advanced Computation Laboratory, Imperial Cancer Research Fund, London, UK;Centre for Cognitive Science, University of Roskilde, Denmark

  • Venue:
  • UAI'93 Proceedings of the Ninth international conference on Uncertainty in artificial intelligence
  • Year:
  • 1993

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Abstract

Argumentation is the process of constructing arguments about propositions, and the assignment of statements of confidence to those propositions based on the nature and relative strength of their supporting arguments. The process is modelled as a labelled deductive system, in which propositions are doubly labelled with the grounds on which they are based and a representation of the confidence attached to the argument. Argument construction is captured by a generalised argument consequence relation based on the ∧, →-fragment of minimal logic. Arguments can be aggregated by a variety of numeric and symboric flattening functions. This approach appears to shed light on the common logical structure of a variety of quantitative, qualitative and defeasible uncertainty calculi.