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GraCT: A Grammar-based Compressed Index for Trajectory Data
(Elsevier Ltd, 2019)
[Abstract]: We introduce a compressed data structure for the storage of free trajectories of moving objects that efficiently supports various spatio-temporal queries. Our structure, dubbed GraCT, stores the absolute positions ...
An index for moving objects with constant-time access to their compressed trajectories
(Taylor & Francis, 2021)
[Abstract]: As the number of vehicles and devices equipped with GPS technology has grown explosively, an urgent need has arisen for time- and space-efficient data structures to represent their trajectories. The most commonly ...