Location recommendation privacy protection method based on location sensitivity division

EURASIP Journal on Wireless Communications and Networking

Zhichao Yin¹  Jin Wang²  Xiaokang Ju³  Chunyong Yin³ 

[1] College of Information Science and Technology, Nanjing Forestry University;School of Computer & Communication Engineering, Changsha University of Science & Technology;School of Computer and Software, Nanjing University of Information Science and Technology;

关键词: Location information;    Location recommendation;    Differential privacy;    Sensitivity;    Laplace noise;   

DOI  :  10.1186/s13638-019-1606-y

来源: DOAJ

【 摘 要 】

Abstract Location-based recommendation services can provide users with convenient services, but this requires monitoring and collecting a large amount of location information. In order to prevent location information from being leaked after monitoring and collection, location privacy must be effectively protected. Therefore, this paper proposes a privacy protection method based on location sensitivity for location recommendation. This method uses location trajectories and check-in frequencies to set a threshold so as to classify location sensitivity levels. The corresponding privacy budget is then assigned based on the sensitivity to add Laplace noise that satisfies the differential privacy. Experimental results show that this method can effectively protect the user’s location privacy and reduce the impact of differential privacy noise on service quality.

【 授权许可】

Unknown