On Spatially Partitioned Temporal Join.

Hongjun Lu, Beng Chin Ooi, Kian-Lee Tan: On Spatially Partitioned Temporal Join. VLDB 1994: 546-557

@inproceedings{DBLP:conf/vldb/LuOT94,
  author    = {Hongjun Lu and
               Beng Chin Ooi and
               Kian-Lee Tan},
  editor    = {Jorge B. Bocca and
               Matthias Jarke and
               Carlo Zaniolo},
  title     = {On Spatially Partitioned Temporal Join},
  booktitle = {VLDB'94, Proceedings of 20th International Conference on Very
               Large Data Bases, September 12-15, 1994, Santiago de Chile, Chile},
  publisher = {Morgan Kaufmann},
  year      = {1994},
  isbn      = {1-55860-153-8},
  pages     = {546-557},
  ee        = {db/conf/vldb/vldb94-546.html},
  crossref  = {DBLP:conf/vldb/94},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

This paper presents an innovative partition-based time join strategy for temporal databases where time is represented by time intervals. The proposed method maps time intervals to points in a two dimensional space and partition the space into subspaces. Tuples of a temporal relation are clustered into partitions based on the mapping in the space. As a result, when two temporal relations are to be joined over the time attribute, a partition in one relation only needs to be compared with a predetermined set of partitions of the other relation. The mapping scheme and the join algorithms are described. The use of spatial indexing techniques to support direct access to the stored partitions is discussed. The results of a preliminary performance study indicate the efficiency of the proposed method.

Copyright © 1994 by the VLDB Endowment. Permission to copy without fee all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the VLDB copyright notice and the title of the publication and its date appear, and notice is given that copying is by the permission of the Very Large Data Base Endowment. To copy otherwise, or to republish, requires a fee and/or special permission from the Endowment.

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Jorge B. Bocca, Matthias Jarke, Carlo Zaniolo (Eds.): VLDB'94, Proceedings of 20th International Conference on Very Large Data Bases, September 12-15, 1994, Santiago de Chile, Chile. Morgan Kaufmann 1994, ISBN 1-55860-153-8
Contents

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