IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Special Section on Cryptography and Information Security
Study on Record Linkage of Anonymizied Data
Hiroaki KIKUCHITakayasu YAMAGUCHIKoki HAMADAYuji YAMAOKAHidenobu OGURIJun SAKUMA
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2018 Volume E101.A Issue 1 Pages 19-28

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Abstract

Data anonymization is required before a big-data business can run effectively without compromising the privacy of personal information it uses. It is not trivial to choose the best algorithm to anonymize some given data securely for a given purpose. In accurately assessing the risk of data being compromised, there needs to be a balance between utility and security. Therefore, using common pseudo microdata, we propose a competition for the best anonymization and re-identification algorithm. The paper reported the result of the competition and the analysis on the effective of anonymization technique. The competition result reveals that there is a tradeoff between utility and security, and 20.9% records were re-identified in average.

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© 2018 The Institute of Electronics, Information and Communication Engineers
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