A Privacy Enhanced Micro aggregation Method
Conference Proceeding Article
Microaggregation is a statistical disclosure control technique for protecting microdata (i.e., individual records), which are important products of statistical offices. The basic idea of microaggregation is to cluster individual records in microdata into a number of mutually exclusive groups prior to publication, and then publish the average over each group instead of individual records. Previous methods require fixed or variable group size in clustering in order to reduce information loss. However, the security aspect of microaggregation has not been extensively studied. We argue that the group size requirement is not enough for protecting the privacy of microdata. We propose a new microaggregation method, which we call secure-k-Ward, to enhance the individual’s privacy. Our method, which is optimization based, minimizes information loss and overall mean deviation while at the same time guarantees that the security requirement for protecting the microdata is satisfied.
Information Security and Trust
Foundations of Information and Knowledge Systems: 2nd International Symposium on Foundations of Information and Knowledge Systems, FoIKS 2002 Salzau Castle, Germany, February 20–23, 2002 Proceedings
City or Country
Salzau Castle, Germany
LI, Yingjiu; ZHU, Sencun; WANG, Lingyu; and Jajodia, Sushil.
A Privacy Enhanced Micro aggregation Method. (2002). Foundations of Information and Knowledge Systems: 2nd International Symposium on Foundations of Information and Knowledge Systems, FoIKS 2002 Salzau Castle, Germany, February 20–23, 2002 Proceedings. 2284, 148-159. Research Collection School Of Information Systems.
Available at: http://ink.library.smu.edu.sg/sis_research/1048