Argument schemes for reasoning with legal cases using values

  • Authors:
  • Trevor Bench-Capon;Henry Prakken;Adam Wyner;Katie Atkinson

  • Affiliations:
  • University of Liverpool, England;Utrecht University, University of Groningen, The Netherlands;University of Aberdeen, Scotland;University of Liverpool, England

  • Venue:
  • Proceedings of the Fourteenth International Conference on Artificial Intelligence and Law
  • Year:
  • 2013

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Abstract

Argument schemes can provide a means of explicitly describing reasoning methods in a form that lends itself to computation. The reasoning required to distinguish cases in the manner of CATO has been previously captured as a set of argument schemes. Here we present argument schemes that encapsulate another way of reasoning with cases: using preferences between social values revealed in past decisions to decide cases which have no exact matching precedents when the cases are described in terms of factors. We provide a set of schemes, with variations to capture different ways of comparing sets and varying degrees of promotion of values; we formalise these schemes; and we illustrate them with some examples.