Answers that have integrity

  • Authors:
  • Hendrik Decker

  • Affiliations:
  • Instituto Tecnológico de Informática, Universidad Politécnica de Valencia, Spain

  • Venue:
  • SDKB'10 Proceedings of the 4th international conference on Semantics in data and knowledge bases
  • Year:
  • 2010

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Abstract

Answers to queries in possibly inconsistent databases may not have integrity. We formalize 'has integrity' on the basis of a definition of 'causes'. A cause of an answer is a minimal excerpt of the database that explains why the answer has been given. An answer has integrity if one of its causes does not overlap with any cause of integrity violation.