Optimal Range Max Datacube for Fixed Dimensions

  • Authors:
  • Chung Keung Poon

  • Affiliations:
  • -

  • Venue:
  • ICDT '03 Proceedings of the 9th International Conference on Database Theory
  • Year:
  • 2003

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Abstract

We present a new data structure to support orthogonal range max queries on a datacube. For a d-dimensional datacube with size n in each dimension where d 驴 c3 log log n/ log(log* n), our structure requires O(c1d) query time and O((c2n)d) storage where c1, c2 and c3 are constants independent of d and n; and log* n is the minimum number of repeated logarithms it takes to reduce the value n to at most 2. Hence our data structure is asymptotically optimal when d is fixed, i.e., a constant independent of n.