关键词: 基于位置的服务, 连续查询, 虚假用户, 位置匿名

Abstract: Location-based services applications are increasingly entering people’s daily lives. Although a location-based service is quite convenient, privacy protection has received considerable attention in location-based services. Currently, there have been numerous studies on protecting location privacy and many methods have been proposed. However, most existing location anonymous method is for a snapshot query, without considering the location privacy leak in continuous LBS queries. This paper proposes a dummy-based anonymizing method based on user history location to protect location privacy in continuous LBS queries.

Key words: Location-Based Service（LBS）, continuous query, dummy user, location anonymity