基于特征工程的道路网低采样率GPS轨迹地图匹配
Feature Engineering for Map Matching of Low-Sampling-Rate GPS Trajectories in Road Network
摘要:
GPS轨迹的地图匹配从一系列的噪声观测服务于恢复的道路网络中的原始路线的目的。在这项正在进行的工作中,我们试图分享我们的经验,在空间数据库中的功能建设报告我们正在进行的实验中的特征提取条件随机场(CRF)的地图匹配。我们的初步结果是从现实世界的出租车GPS轨迹中获得的。
英文摘要:
Map matching of GPS trajectories from a sequence of noisy observations serves the purpose of recovering the original routes in a road network. In this work in progress, we attempt to share our experience of feature construction in a spatial database by reporting our ongoing experiment of feature extrac-tion in Conditional Random Fields (CRFs) for map matching. Our preliminary results are obtained from real-world taxi GPS trajectories.
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