期刊名称：International Journal of Computer and Information Technology
印刷版ISSN：2279-0764
出版年度：2016
卷号：5
期号：1
页码：42
出版社：International Journal of Computer and Information Technology
摘要：With the development of Internet of Things (IoT) and smart devices, location-based services are becoming increasingly popular. People are able to make spatial range queries as well as share location information with friends anywhere at any time. However, this is also accompanied by risks since location information is considered to be one kind of quasi-identifiers and hence sensitive. In this paper, we consider the following scenario: a user sends different location-based requests continuously on a map, and is gradually exposed to location attacks. Numerous algorithms have been proposed to solve this problem. But most of them are targeted for locations in the Euclidean space, and hence not applicable for the more practical scenarios of road networks. Moreover, though several studies have addressed the popularity of locations in road networks, none has considered the sensitivity of locations, let alone the correlation between popularity and sensitivity at the same location. In this paper, we explore the impacts of sensitivity and popularity on a cloaking region, and develop a cloaking algorithm called RCliqueCloak to reduce the risk of location leakage in road networks. Experimental results show that our algorithms behave better than other cloaking algorithms in incorporating map information
