A modal logic for reasoning with contradictory beliefs which takes into account the number and the reliability of the sources

  • Authors:
  • Laurence Cholvy

  • Affiliations:
  • ONERA Centre de Toulouse, Toulouse, France

  • Venue:
  • ECSQARU'05 Proceedings of the 8th European conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty
  • Year:
  • 2005

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Abstract

This paper addresses the problem of merging beliefs provided by several sources which can be contradictory. Among the different methods for managing contradictions, this paper focuses on the one which takes into account the number of sources that support a piece of information and their reliability degrees as well. More precisely, this paper presents a modal logic, extending KD logic, for reasoning with merged beliefs accordingly. It also shows that this logic unifies two different logics that have been defined in the past.