The fast development of mobile internet has given rise to an extremely large volume of
moving objects trajectory data. These data not only reflect the spatio-temporal mobility of
individuals and groups, but may also contain the behavior information of people, vehicles
animals, and other objects of interest. They are invaluable for route planning, urban
planning and vehicle monitoring, etc., and tremendous efforts have been made to support
effective trajectory data management, including trajectory data pre-processing, which …