Querying recurrent convoys over trajectory data

ME Yadamjav, Z Bao, B Zheng, FM Choudhury… - ACM Transactions on …, 2020 - dl.acm.org
ACM Transactions on Intelligent Systems and Technology (TIST), 2020dl.acm.org
Moving objects equipped with location-positioning devices continuously generate a large
amount of spatio-temporal trajectory data. An interesting finding over a trajectory stream is a
group of objects that are travelling together for a certain period of time. We observe that
existing studies on mining co-moving objects do not consider an important correlation
between co-moving objects, which is the reoccurrence of the co-moving pattern. In this
study, we propose the problem of finding recurrent co-moving patterns from streaming …
Moving objects equipped with location-positioning devices continuously generate a large amount of spatio-temporal trajectory data. An interesting finding over a trajectory stream is a group of objects that are travelling together for a certain period of time. We observe that existing studies on mining co-moving objects do not consider an important correlation between co-moving objects, which is the reoccurrence of the co-moving pattern. In this study, we propose the problem of finding recurrent co-moving patterns from streaming trajectories, enabling us to discover recent co-moving patterns that are repeated within a given time period. Experimental results on real-life trajectory data verify the efficiency and effectiveness of our method.
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