Location privacy protection scheme for LBS users based ondifferential privacy

In order to take into account the availability of shared location data and privacy protection requirements,aiming at the shared location information collected by the third party,a location privacy protection scheme of LBS users was proposed based on differential privacy.Firstly,the shared location d...

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Autores principales:	Naiwen YU, Shaojie YANG, Zhenguo CHEN, Guanghua ZHANG
Formato:	article
Lenguaje:	ZH
Publicado:	Hebei University of Science and Technology 2021
Materias:	data security and computer security; location data; privacy protection; differential privacy; availability Technology T
Acceso en línea:	https://doaj.org/article/0b70fa95cbf94c82af79f3dfe4165033
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spelling	oai:doaj.org-article:0b70fa95cbf94c82af79f3dfe41650332021-11-23T07:08:47ZLocation privacy protection scheme for LBS users based ondifferential privacy1008-154210.7535/hbkd.2021yx03003https://doaj.org/article/0b70fa95cbf94c82af79f3dfe41650332021-06-01T00:00:00Zhttp://xuebao.hebust.edu.cn/hbkjdx/ch/reader/create_pdf.aspx?file_no=b202103003&flag=1&journal_https://doaj.org/toc/1008-1542In order to take into account the availability of shared location data and privacy protection requirements,aiming at the shared location information collected by the third party,a location privacy protection scheme of LBS users was proposed based on differential privacy.Firstly,the shared location data set was preprocessed,the dictionary query mode was used to build the location transaction database,and the trie tree structure was adopted to store the location data and frequency,so as to improve the query efficiency and reduce the number of noise.Secondly,frequent location selection was carried out in the Trie tree,and Laplacian mechanism under differential privacy was used to disturb the location frequency.Finally,the perturbed data was optimized based on the two techniques of upward post-processing and consistency constrained post-processing,and theoretically prove that the proposed scheme satisfies ε[KG-*4]-differential privacy.The experimental results show that,compared with the existing methods,this scheme improves the efficiency of data processing,generalizes the sensitive locations,and has higher accuracy and lower rejection rate.This scheme has a certain reference value in user location privacy protection and shared location data availability.Naiwen YUShaojie YANGZhenguo CHENGuanghua ZHANGHebei University of Science and Technologyarticledata security and computer security; location data; privacy protection; differential privacy; availabilityTechnologyTZHJournal of Hebei University of Science and Technology, Vol 42, Iss 3, Pp 222-230 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	data security and computer security; location data; privacy protection; differential privacy; availability Technology T
spellingShingle	data security and computer security; location data; privacy protection; differential privacy; availability Technology T Naiwen YU Shaojie YANG Zhenguo CHEN Guanghua ZHANG Location privacy protection scheme for LBS users based ondifferential privacy
description	In order to take into account the availability of shared location data and privacy protection requirements,aiming at the shared location information collected by the third party,a location privacy protection scheme of LBS users was proposed based on differential privacy.Firstly,the shared location data set was preprocessed,the dictionary query mode was used to build the location transaction database,and the trie tree structure was adopted to store the location data and frequency,so as to improve the query efficiency and reduce the number of noise.Secondly,frequent location selection was carried out in the Trie tree,and Laplacian mechanism under differential privacy was used to disturb the location frequency.Finally,the perturbed data was optimized based on the two techniques of upward post-processing and consistency constrained post-processing,and theoretically prove that the proposed scheme satisfies ε[KG-*4]-differential privacy.The experimental results show that,compared with the existing methods,this scheme improves the efficiency of data processing,generalizes the sensitive locations,and has higher accuracy and lower rejection rate.This scheme has a certain reference value in user location privacy protection and shared location data availability.
format	article
author	Naiwen YU Shaojie YANG Zhenguo CHEN Guanghua ZHANG
author_facet	Naiwen YU Shaojie YANG Zhenguo CHEN Guanghua ZHANG
author_sort	Naiwen YU
title	Location privacy protection scheme for LBS users based ondifferential privacy
title_short	Location privacy protection scheme for LBS users based ondifferential privacy
title_full	Location privacy protection scheme for LBS users based ondifferential privacy
title_fullStr	Location privacy protection scheme for LBS users based ondifferential privacy
title_full_unstemmed	Location privacy protection scheme for LBS users based ondifferential privacy
title_sort	location privacy protection scheme for lbs users based ondifferential privacy
publisher	Hebei University of Science and Technology
publishDate	2021
url	https://doaj.org/article/0b70fa95cbf94c82af79f3dfe4165033
work_keys_str_mv	AT naiwenyu locationprivacyprotectionschemeforlbsusersbasedondifferentialprivacy AT shaojieyang locationprivacyprotectionschemeforlbsusersbasedondifferentialprivacy AT zhenguochen locationprivacyprotectionschemeforlbsusersbasedondifferentialprivacy AT guanghuazhang locationprivacyprotectionschemeforlbsusersbasedondifferentialprivacy
_version_	1718416865059930112

Location privacy protection scheme for LBS users based ondifferential privacy

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