On the Role of Preferences in Argumentation Frameworks

  • Authors:

  • Leila Amgoud;Srdjan Vesic

  • Affiliations:

  • -;-

  • Venue:
  • ICTAI '10 Proceedings of the 2010 22nd IEEE International Conference on Tools with Artificial Intelligence - Volume 01
  • Year:
  • 2010

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Abstract

The aim of this paper is to study how preferences, which are used to model intrinsic strengths of arguments, can be used in argumentation. We show that they play two roles: i) to repair the attack relation between arguments, and ii) to refine the evaluation of arguments. Then, we point out that the existing approaches for preference-based argumentation model only the first role. They may also return non conflict-free extensions. We propose a general framework that overcomes those limitations.