Refining reasoning in qualitative probabilistic networks

  • Authors:
  • Simon Parsons

  • Affiliations:
  • Department of Electronic Engineering, Queen Mary and Westfield College, London, UK and Advanced Computation Laboratory, Imperial Cancer Research Fund, London, UK

  • Venue:
  • UAI'95 Proceedings of the Eleventh conference on Uncertainty in artificial intelligence
  • Year:
  • 1995

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Abstract

In recent years there has been a spate of papers describing systems for probabilisitic reasoning which do not use numerical probabilities. In some cases the simple set of values used by these systems make it impossible to predict how a probability will change or which hypothesis is most likely given certain evidence. This paper concentrates on such situations, and suggests a number of ways in which they may be resolved by refining the representation.