Data Merging: Theory of Evidence vs. Knowledge-Bases Merging Operators

  • Authors:
  • Laurence Cholvy

  • Affiliations:
  • -

  • Venue:
  • ECSQARU '01 Proceedings of the 6th European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty
  • Year:
  • 2001

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Abstract

This paper addresses the problem of merging data provided by several sources of information. It aims at comparing two techniques of merging, one provided by Theory of Evidence and the other provided in the field of logic for merging knowledge-bases. For doing so, it first presents a logical interpretation of Theory of Evidence, which is proved to be valid when the numbers are rational. Then, it shows the equivalence between the Maximum of Plausibility Decision Strategy of Theory of Evidence and a particular knowldege-bases merging operator, known to be a majority and also an arbitration operator.