Disclosure risk assessment in statistical data protection

  • Authors:
  • Josep Domingo-Ferrer;Vicenç Torra

  • Affiliations:
  • Department of Computer Engineering and Mathematics, Universitat Rovira i Virgili, Av. Països Catalans 26, E-43007 Tarragona, Catalonia, Spain;Institut d'Investigació en Intelligència Artificial, Campus de Bellaterra, E-08193 Bellaterra, Catalonia, Spain

  • Venue:
  • Journal of Computational and Applied Mathematics - Special Issue: Proceedings of the 10th international congress on computational and applied mathematics (ICCAM-2002)
  • Year:
  • 2004

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Abstract

Statistical data protection, also known as statistical disclosure control, is about methods that try to prevent published statistical information (tables, individual information) from disclosing the contribution of specific respondents, who may be individuals or enterprises. In addition to keeping disclosure risk acceptably low, methods used for statistical data protection should not significantly damage the utility of the data being protected. This paper surveys different ways to assess the risk of disclosure in the protection of both individual data (called microdata) and tabular data. A noteworthy result also presented is that the most widely used hale for assessing disclosure risk in tabular data protection is flawed.