Protection of location privacy for moving kNN queries in social networks
Protection of location privacy for moving kNN queries in social networks
复制标题
保护社交网络中移动 kNN 查询的位置隐私
DOI:
10.1016/j.asoc.2017.08.027
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发表时间:
2017-08
影响因子:
8.7
通讯作者:
Mznah Al-Rodhaan
中科院分区:
文献类型:
--
作者:
Tinghuai Ma;Jing Jia;Yu Xue;Yuan Tian;Abdullah Al-Dhelaan;Mznah Al-Rodhaan
With the development of mobile Internet technology, location-based services (LBS) has been widely used in social networks, such as WeChat. A user of WeChat can discover people nearby with the help of LBS. However, users need to send their current locations to get the service, which may lead to the leakage of their location privacy. An effective way to protect the user's location privacy is using an imprecise location, such as a region to replace his real location. When processing continuous queries, the user need to transmit the region to the server continuously and an attacker is able to infer the real location from the overlapping regions. In this paper, we use circle as the query region and describe how to form a circle region. Then we study the overlapping circle attack and design a method to avoid this attack by changing the confidence level to a fixed value. We also propose an algorithmEPPINQfor the server to process akNN query while protecting user's location against the attack. Experimental results show that our algorithm is more effective and efficient than the existing algorithm.
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DOI:
10.1109/perser.2005.1506394
发表时间:
2005-07
期刊:
ICPS '05. Proceedings. International Conference on Pervasive Services, 2005.
影响因子:
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