A Study on Spatial-temporal indexing for querying current and past positions

현재와 과거 위치 질의를 위한 시공간 색인에 관한 연구

  • Jun, Bong-Gi (Detp.of Computer Information Engineering, Silla University)
  • Published : 2004.10.01


The movement of continuously changing positions should be stored and indexed for querying current and past positions. A simple extension of the original R-tree to add time as another dimension, called 3D R-tree, does not handle current position queries and does not address the problem of low space utilization due to high overlap of index nodes. In this paper, 1 propose the dynamic splitting policy for improving the 3D R-tree in order to improve space utilization of split nodes. 1 also extend the original 3D R-tree by introducing a new tagged index structure for being able to query the current and past positions of moving objects. 1 found out that my extension of the original R-tree, called the tagged dynamic 3DR-tree, outperforms both the 3D R-tree and 75-tree when querying current and past position.


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