The TI/R--Tree: a temporal--spatial access structure

  • Authors:
  • Vram Kouramajian;Ramez Elmasri

  • Affiliations:
  • Wichita State University, Wichita, Kansas;The University of Texas at Arlington, Arlington, Texas

  • Venue:
  • ACM-SE 33 Proceedings of the 33rd annual on Southeast regional conference
  • Year:
  • 1995

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Abstract

In this paper, we propose a new indexing structure, called the TI/R-tree, which combines techniques used in temporal access structures with techniques used in spatial access structures to provide a suitable means for maintaining and retrieving the history of geographic data.The TI/R-tree uses features from both the time index [ElWK90, Kour94] and the R-tree [Gutt84]. It has a tree structure similar to the time index and maintains a set of linearly ordered indexing points on the time dimension. The leaf nodes of the TI/R-tree refer to logical buckets which are organized as incremental R-trees; that is, at certain time points only deltas are kept. This permits the reconstruction of R-trees at any time point by using a number of logical buckets.