Efficient Path Query Processing Over Massive Trajectories on the Cloud.
IEEE Transactions on Big Data(2020)
摘要
A path query aims to find trajectories passing a given sequence of connected road segments within a time period. It is very useful in many urban applications: 1) traffic modeling, 2) frequent path mining, 3) intersection coordination, and 4) traffic anomaly detection. Existing solutions for path query processing are implemented based on single machines, which are not efficient for the following ta...
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关键词
Trajectory,Indexes,Storms,Query processing,Roads,Global Positioning System,Real-time systems
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