基于位置服务中针对动态轨迹的匿名化

魏燊; 孙广中; 谢幸

doi:10.3969/j.issn.1000-5641.2015.05.009

基于位置服务中针对动态轨迹的匿名化

doi: 10.3969/j.issn.1000-5641.2015.05.009

魏燊¹,
孙广中^1, ,,
谢幸²

1.
中国科学技术大学计算机科学与技术学院,合肥230027;
2.
微软亚洲研究院,北京100080

详细信息

作者简介:
魏燊，男，硕士研究生，研究方向为数据安全与隐私. E-mail: weishen0@mail.ustc.edu.cn. 

通讯作者:
孙广中，男，副教授，研究方向为算法优化、时空数据挖掘与应用，高性能计算与应用.

中图分类号: TP301
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出版历程
- 收稿日期: 2015-09-11
- 刊出日期: 2015-09-25

Dynamic trajectory anonymization in location based services

摘要

摘要: 用户的移动设备中基于位置的服务会不断地向服务器发送用户当前的地理信息，通过地理位置查询出相应的结果并返回给用户.如何同时保证服务质量和地理信息不被泄露是一个重要的问题.为了保护用户的真实地点，提出一种基于虚假地点的方法，设备每次将发送多个地点给服务器来保护用户的真实地点.对于用户可能到达的地点，提出一种启发式算法划分需要发送的地点集合，并使用隐私来保证攻击者根据轨迹中的前后地点也无法获得更多有关敏感地点的信息.最后，在一个无线网接入数据上进行实验，实验结果表明在该数据集上平均需要发送5到6个地点.
- 隐私保护 /
- 位置隐私 /
- 虚假地点 /
- 集合划分
Abstract: Locationbased services in users mobile device can send geographical information queries to the server continuously, and receive corresponding results to the user. But simultaneously assure the quality of service and none leakage of geographical information is an important problem. This paper used a dummy location method to protect users real locations. The device sent multiple locations to the server. The paper also proposed a heuristic algorithm to partition location set and used privacy to prevent adversary infer sensitive information from contiguous locations. At last, an experiment on a WiFi access data set shows that five or six locations need to be sent averagely. 
- privacy preservationlocation privacydummy locationsset partition /

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参考文献(1)

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