Reasoning with Uncertainty by Nmatrix---Metric Semantics

  • Authors:
  • Ofer Arieli;Anna Zamansky

  • Affiliations:
  • Department of Computer Science, The Academic College of Tel-Aviv, Israel;Department of Computer Science, Tel-Aviv University, Israel

  • Venue:
  • WoLLIC '08 Proceedings of the 15th international workshop on Logic, Language, Information and Computation
  • Year:
  • 2008

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Abstract

Non-deterministic matrices, a natural generalization of many-valued matrices, are semantic structures in which the value assigned to a complex formula may be chosen non-deterministically from a given set of options. We show that by combining Nmatrices and preferential metric-based considerations, one obtains a family of logics that are useful for reasoning with uncertainty. We investigate the basic properties of these logics and demonstrate their usefulness in handling incomplete and inconsistent information.