Towards the Diversity of Sensitive Attributes in k-Anonymity

  • Authors:
  • Min Wu;Xiaojun Ye

  • Affiliations:
  • Tsinghua University, China;Tsinghua University, China

  • Venue:
  • WI-IATW '06 Proceedings of the 2006 IEEE/WIC/ACM international conference on Web Intelligence and Intelligent Agent Technology
  • Year:
  • 2006

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Abstract

Privacy preservation is an important and challenging problem in microdata release. As a de-identification model, k-anonymity has gained much attention recently. While focusing on identity disclosures, k-anonymity does not well resolve attribute disclosures. In this paper we focus on the sensitive attribute disclosures in k-anonymity and propose an ordinal distance based sensitivity aware diversity metric. We assume the more diversity the sensitive attribute assumes in an equivalence class in a k-anonymized table, the less inference channel there is in the equivalence class.