T -Closeness Slicing: A New Privacy-Preserving Approach for Transactional Data Publishing

Mingzheng Wang (), Zhengrui Jiang (), Haifang Yang and Yu Zhang ()
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Mingzheng Wang: School of Management, Zhejiang University, Hangzhou, Zhejiang, 310058, China
Zhengrui Jiang: College of Business, Iowa State University, Ames, Iowa 50011
Yu Zhang: School of Management Science and Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China

INFORMS Journal on Computing, 2018, vol. 30, issue 3, 438-453

Abstract: Privacy-preserving data publishing has received much attention in recent years. Prior studies have developed various algorithms such as generalization , anatomy , and L-diversity slicing to protect individuals’ privacy when transactional data are published for public use. These existing algorithms, however, all have certain limitations. For instance, generalization protects identity privacy well but loses a considerable amount of information. Anatomy prevents attribute disclosure and lowers information loss, but fails to protect membership privacy. The more recent probability L-diversity slicing algorithm overcomes some shortcomings of generalization and anatomy, but cannot shield data from more subtle types of attacks such as skewness attack and similarity attack. To meet the demand of data owners with high privacy-preserving requirement, this study develops a novel method named t-closeness slicing (TCS) to better protect transactional data against various attacks. The time complexity of TCS is log-linear, hence the algorithm scales well with large data. We conduct experiments using three transactional data sets and find that TCS not only effectively protects membership privacy, identity privacy, and attribute privacy, but also preserves better data utility than benchmarking algorithms.

Keywords: transactional data; privacy preservation; data publishing; t-closeness model; slicing techniquetransactional data; privacy preservation; data publishing; t-closeness model; slicing technique (search for similar items in EconPapers)
Date: 2018
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