Comparing sets of positive and negative arguments: Empirical assessment of seven qualitative rules

  • Authors:
  • Jean-François Bonnefon;Hélène Fargier

  • Affiliations:
  • LTC-CNRS, 5 allées Antonio Machado 31058 Toulouse Cedex 9, France. E-mail: bonnefon@univ-tlse2.fr;IRIT-CNRS, 118 Route de Narbonne 31062 Toulouse Cedex, France. E-mail: fargier@irit.fr

  • Venue:
  • Proceedings of the 2006 conference on ECAI 2006: 17th European Conference on Artificial Intelligence August 29 -- September 1, 2006, Riva del Garda, Italy
  • Year:
  • 2006

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Abstract

Many decisions can be represented as bipolar, qualitative sets of arguments: Arguments can be pros or cons, and ranked according to their importance, but not numerically evaluated. The problem is then to compare these qualitative, bipolar sets. In this paper (a collaboration between a computer scientist and a psychologist), seven procedures for such a comparison are empirically evaluated, by matching their predictions to choices made by 62 human participants on a selection of 33 situations. Results favor cardinality-based procedures, and in particular one that allows for the internal cancellation of positive and negative arguments within a decision.