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Privacy-preserving aggregation of personal health data streams

Author

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  • Jong Wook Kim
  • Beakcheol Jang
  • Hoon Yoo

Abstract

Recently, as the paradigm of medical services has shifted from treatment to prevention, there is a growing interest in smart healthcare that can provide users with healthcare services anywhere, at any time, using information and communications technologies. With the development of the smart healthcare industry, there is a growing need for collecting large-scale personal health data to exploit the knowledge obtained through analyzing them for improving the smart healthcare services. Although such a considerable amount of health data can be a valuable asset to the smart healthcare fields, they may cause serious privacy problems if sensitive information of an individual user is leaked to outside users. Therefore, most individuals are reluctant to provide their health data to smart healthcare service providers for data analysis and utilization purpose, which is the biggest challenge in smart healthcare fields. Thus, in this paper, we develop a novel mechanism for privacy-preserving collection of personal health data streams that is characterized as temporal data collected at fixed intervals by leveraging local differential privacy (LDP). In particular, with the proposed approach, a data contributor uses a given privacy budget of LDP to report a small amount of salient data, which are extracted from an entire health data stream, to a data collector. Then, a data collector can effectively reconstruct a health data stream based on the noisy salient data received from a data contributor. Experimental results demonstrate that the proposed approach provides significant accuracy gains over straightforward solutions to this problem.

Suggested Citation

  • Jong Wook Kim & Beakcheol Jang & Hoon Yoo, 2018. "Privacy-preserving aggregation of personal health data streams," PLOS ONE, Public Library of Science, vol. 13(11), pages 1-15, November.
  • Handle: RePEc:plo:pone00:0207639
    DOI: 10.1371/journal.pone.0207639
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    Cited by:

    1. Saurab Chhachhi & Fei Teng, 2021. "Market Value of Differentially-Private Smart Meter Data," Papers 2104.09898, arXiv.org.

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