Shape-Based Similarity Query for Trajectory of Mobile Objects
MDM '03 Proceedings of the 4th International Conference on Mobile Data Management
FTW: fast similarity search under the time warping distance
Proceedings of the twenty-fourth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Robust and fast similarity search for moving object trajectories
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Trajectory Similarity Search in Spatial Networks
IDEAS '06 Proceedings of the 10th International Database Engineering and Applications Symposium
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Trajectory data are widely used in location-dependent systems (e.g., traffic control systems, meteorology monitoring systems, mobile computing systems, etc.) For these application systems, to find similar trajectories of moving objects is an important and interesting issue. In this paper, a data model of trajectories based discrete grid cells is given, and the similarity between trajectories is defined as a new distance function. Furthermore, we propose an efficient algorithm for shape-based similarity k nearest neighbor query. Simulation experiments show the proposed query processing method has better performance than that of existent methods.