基于用户偏好选择的假位置生成方案

Fake location generation scheme based on user preference selection

为在稀疏路段构建安全匿名区域,提出一种基于用户偏好选择的生成假位置方案。采用集中式系统架构,选取历史位置信息点生成假位置,根据历史位置的概率值大小进行排列,选取历史用户发出请求较多的位置生成假位置,将其速度、行驶方向与用户位置作对比,选取相似度较高的假位置构造匿名区域,用户根据自身特点,选择不同类别的敏感信息点进行隐匿。实验结果表明,所提方法可增强位置真实性,减少通信量,确保用户隐私安全。

To construct a secure anonymous region in sparse road segments,a scheme based on user preferences was proposed to generate fake location scheme.The centralized system architecture was adopted.Fake location was generated based on historical location information and was based on the probability value of historical location.The history of the user was arranged and selected to send more requests to generate false location,and its speed,driving direction and user location were used for comparison,the high similarity false location was selected to construct anonymous area,and users chose different types of sensitive information point for hiding according to their own characteristics.Experimental results show that the proposed method can enhance the authenticity of the location,reduce the traffic and ensure the privacy of users.