User Location Anonymization Method for Wide Distribution of Dummies
User Location Anonymization Method for Wide Distribution of Dummies
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DOI：
10.1007/978-3-642-40173-2_22
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发表时间：
2013-08
期刊：
影响因子：
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通讯作者：
Ryo Kato;Mayu Iwata;T. Hara;Yuki Arase;Xing Xie;S. Nishio
中科院分区：
文献类型：
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作者：
Ryo Kato;Mayu Iwata;T. Hara;Yuki Arase;Xing Xie;S. Nishio
GPS(全球定位系统)技术的进步导致了利用用户位置的各种服务变得可用。由于位置信息可能会泄露隐私信息，保护位置隐私已成为一个重要问题。为了保护这种隐私性，我们提出了一种用户位置匿名化方法，该方法根据用户的运动轨迹在运动暂停的情况下生成虚拟人。然而，以前的工作并不能充分满足用户对位置隐私的要求，因为随着时间的推移，生成的虚拟人的位置往往聚集在一个小区域内。在本文中，我们提出了一种用户位置匿名化方法，该方法总是将虚拟人的位置保持在足够宽的区域内，以匿名用户的位置。我们的方法通过将虚拟对象移动到用户和虚拟对象较少的区域来定期分发虚拟对象。我们在真实地图上模拟了用户的移动，并验证了该方法比以前的方法更有效。
Advances in GPS (global positioning system) technologies have led to a variety of services utilizing the user’s location becoming available. Since location information may reveal private information, preserving location privacy has become a significant issue. To preserve this privacy, we have proposed a user location anonymization method that generates dummies on the basis of the user’s trajectory with pauses in movement. However, the previous work does not sufficiently satisfy users’ requirements for location privacy because the locations of the generated dummies tended to gather in a small area as time passed. In this paper, we propose a user location anonymization method that always keeps dummies’ locations in an area wide enough to anonymize the user’s location. Our method periodically distributes dummies by moving them to an area where there were fewer users and dummies. We simulated the user’s movement on a real map and verified that the proposed method was more effective than the previous one.