摘要
针对用户在获得位置服务的同时,用户的位置隐私可能会被泄露的问题,采用四叉树结构的方法构造匿名区域,提出基于四叉树结构的增量近邻查询方法。该方法考虑到目标节点的密度,采用四叉树结构的方法构造合理的匿名区域,进行增量近邻查询,从而实现用户根据自身的查询需求获取位置服务的同时保护目标用户的位置隐私。经过性能分析,提高查询隐私保护度和位置查询准确度。
To solve the problem that users’location privacy may be leaked when they get location services, an incremental nearest neighbor query method based on quadtree structure is proposed. Considering the density of the target node, this method uses quadtree structure to construct a reasonable anonymous region, and carries out incremental nearest neighbor query, so that users can obtain location services according to their own query needs while protecting the location privacy of the target user. Through performance analysis, the degree of privacy protection and location query accuracy are improved.
作者
庄礼金
Zhuang Lijin(Guangdong Polytechnic College,Zhaoqing Guangdong,526100)
出处
《电子测试》
2018年第21期74-75,49,共3页
Electronic Test
关键词
位置服务
四叉树结构
匿名区域
隐私保护度
查询准确度
location service
four fork tree structure
anonymous area
privacy protection degree
query accuracy
