Adaptive Personalized Randomized Response Method Based on Local Differential Privacy

Dongyan Zhang, Lili Zhang, Zhiyong Zhang and Zhongya Zhang
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Dongyan Zhang: Henan University of Science and Technology, China
Lili Zhang: Henan University of Science and Technology, China
Zhiyong Zhang: Henan University of Science and Technology, China
Zhongya Zhang: Henan University of Science and Technology, China

International Journal of Information Security and Privacy (IJISP), 2024, vol. 18, issue 1, 1-19

Abstract: Aiming at the problem of adopting the same level of privacy protection for sensitive data in the process of data collection and ignoring the difference in privacy protection requirements, the authors propose an adaptive personalized randomized response method based on local differential privacy (LDP-APRR). LDP-APRR determines the sensitive level through the user scoring strategy, introduces the concept of sensitive weights for adaptive allocation of privacy budget, and realizes the personalized privacy protection of sensitive attributes and attribute values. To verify the distorted data availability, LDP-APRR is applied to frequent items mining scenarios and compared with mining associations with secrecy konstraints (MASK), and grouping-based randomization for privacy-preserving frequent pattern mining (GR-PPFM). Results show that the LDP-APRR achieves personalized protection of sensitive attributes and attribute values with user participation, and the maxPrivacy and avgPrivacy are improved by 1.2% and 4.3%, respectively, while the availability of distorted data is guaranteed.

Date: 2024
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