东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (5): 667-670.DOI: 10.12068/j.issn.1005-3026.2014.05.014

• 信息与控制 • 上一篇    下一篇

基于地图匹配的时空轨迹匿名算法

王丽娜,彭瑞卿,冯博,李叶   

  1. (武汉大学 空天信息安全与可信计算教育部重点实验室, 湖北 武汉430072)
  • 收稿日期:2013-10-10 修回日期:2013-10-10 出版日期:2014-05-15 发布日期:2014-08-18
  • 通讯作者: 王丽娜
  • 作者简介:王丽娜(1964-),女,辽宁营口人,武汉大学教授,博士生导师.
  • 基金资助:
    教育部博士点基金优先发展领域项目(20110141130006);国家自然科学基金资助项目(60970114,61103219,61303213,41104010).

SpatioTemporal Trajectory Anonymous Algorithm via Map Matching

WANG Lina, PENG Ruiqing, FENG Bo, LI Ye   

  1. Key Laboratory of Aerospace Information Security and Trusted Computing, Ministry of Education, Wuhan University, Wuhan 430072, China.
  • Received:2013-10-10 Revised:2013-10-10 Online:2014-05-15 Published:2014-08-18
  • Contact: PENG Ruiqing
  • About author:-
  • Supported by:
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摘要: 当前的时空轨迹匿名算法忽略了空间相关性对轨迹隐匿的重要影响.为此,提出一种基于地图匹配的时空轨迹匿名算法,利用真实路网数据构造假轨迹的候选匹配集,通过设置时间和空间匿名函数,利用启发式广度优先搜索算法搜索目标匹配轨迹点,满足时空匿名性和空间相关性的隐私安全条件,以增强隐私保护力度.在Android平台上设计实现基于地图匹配的时空轨迹匿名工具,利用真实路网数据完成实验,验证了该算法的有效性.

关键词: 位置服务, 隐私保护, 轨迹匿名, 地图匹配, 路网数据

Abstract: The current approach using spatiotemporal trajectory anonymous neglected the influence of the spatial correlation on the trajectory cloaking. To enhance the efforts of privacy, a spatiotemporal trajectory anonymous algorithm via map matching is presented to meet the demand for security of the spatiotemporal anonymity and the spatial correlation. The scheme first makes a candidate matching points set for dummy trajectory points by use of the real road network datasets, and then searches the target match trajectory points based on the anonymous function of temporal and spatial and the heuristic breadth first search. Experiments validate the efficiency of the privacy protection algorithm by use of a real datasets and a tool of spatiotemporal trajectory anonymous via map matching that is designed and implemented based on Android platform.

Key words: location service, privacy protection, trajectory anonymous, map matching, road network datasets

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