Quantifying the costs and benefits of privacy-preserving health data publishing

Khokhara, Rashid Hussain, Chen, Rui, Fung, Benjamin C.M., and Lui, Siu Man (2014) Quantifying the costs and benefits of privacy-preserving health data publishing. Journal of Biomedical Informatics, 50. pp. 107-121.

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Abstract

Cost-benefit analysis is a prerequisite for making good business decisions. In the business environment, companies intend to make profit from maximizing information utility of published data while having an obligation to protect individual privacy. In this paper, we quantify the trade-off between privacy and data utility in health data publishing in terms of monetary value . We propose an analytical cost model that can help health information custodians (HICs) make better decisions about sharing person-specific health data with other parties. We examine relevant cost factors associated with the value of anonymized data and the possible damage cost due to potential privacy breaches. Our model guides an HIC to find the optimal value of publishing health data and could be utilized for both perturbative and non-perturbative anonymization techniques. We show that our approach can identify the optimal value for different privacy models, including K-anonymity, LKC-privacy, and ε-differential privacy, under various anonymization algorithms and privacy parameters through extensive experiments on real-life data.

Item ID: 33575
Item Type: Article (Refereed Research - C1)
Keywords: privacy; data utility; health data; cost model; monetary value
ISSN: 1532-0480
Funders: Australian Research Council (ARC), Natural Sciences and Engineering Research Council of Canada (NSERC)
Projects and Grants: ARC Discovery Grant 356065-2013
Date Deposited: 19 Jun 2014 00:36
FoR Codes: 08 INFORMATION AND COMPUTING SCIENCES > 0801 Artificial Intelligence and Image Processing > 080109 Pattern Recognition and Data Mining @ 50%
08 INFORMATION AND COMPUTING SCIENCES > 0806 Information Systems > 080609 Information Systems Management @ 50%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8903 Information Services > 890399 Information Services not elsewhere classified @ 100%
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