Utility-preserving transaction data anonymization with low information loss.

Expert Systems with Applications
Grigorios Loukides, A Gkoulalas-Divanis

Abstract

Transaction data record various information about individuals, including their purchases and diagnoses, and are increasingly published to support large-scale and low-cost studies in domains such as marketing and medicine. However, the dissemination of transaction data may lead to privacy breaches, as it allows an attacker to link an individual's record to their identity. Approaches that anonymize data by eliminating certain values in an individual's record or by replacing them with more general values have been proposed recently, but they often produce data of limited usefulness. This is because these approaches adopt value transformation strategies that do not guarantee data utility in intended applications and objective measures that may lead to excessive data distortion. In this paper, we propose a novel approach for anonymizing data in a way that satisfies data publishers' utility requirements and incurs low information loss. To achieve this, we introduce an accurate information loss measure and an effective anonymization algorithm that explores a large part of the problem space. An extensive experimental study, using click-stream and medical data, demonstrates that our approach permits many times more accurate query answer...Continue Reading

References

Apr 19, 2006·IEEE Transactions on Information Technology in Biomedicine : a Publication of the IEEE Engineering in Medicine and Biology Society·Carlos Ordonez
May 3, 2008·The Journal of Clinical Investigation·Teri A ManolioFrancis S Collins
May 27, 2008·Clinical Pharmacology and Therapeutics·D M RodenD R Masys
Apr 14, 2010·Proceedings of the National Academy of Sciences of the United States of America·Grigorios LoukidesBradley Malin
May 6, 2010·Journal of the American Medical Informatics Association : JAMIA·Grigorios LoukidesBradley Malin
May 19, 2011·Nature Reviews. Genetics·Isaac S Kohane

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Citations

Jun 18, 2014·Journal of Biomedical Informatics·Aris Gkoulalas-DivanisJimeng Sun
Nov 21, 2015·SpringerPlus·Yousra Abdul Alsahib S AldeenMohammad Abdur Razzaque

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