Report copyright - 一种基于时空相关性的差分隐私轨迹保护机制cjc.ict.ac.cn/online/onlinepaper/wyc-201829103023.pdf · 轨迹.该文针对轨迹隐私保护问题,首先根据地理空间的拓扑关系,提出了CPL算法计算地图上各区域的隐私级
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