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A Pareto Model for OLAP View Size Estimation

Author

Listed:
  • Thomas P. Nadeau

    (The University of Michigan)

  • Toby J. Teorey

Abstract

On-Line Analytical Processing (OLAP) aims at gaining useful information quickly from large amounts of data residing in a data warehouse. To improve the quickness of response to queries, pre-aggregation is a useful strategy. However, it is usually impossible to pre-aggregate along all combinations of the dimensions. The multi-dimensional aspects of the data lead to combinatorial explosion in the number and potential storage size of the aggregates. We must selectively pre-aggregate. Cost/benefit analysis involves estimating the storage requirements of the aggregates in question. We present an original algorithm for estimating the number of rows in an aggregate based on the Pareto distribution model. We test the Pareto Model Algorithm empirically against four published algorithms, and conclude the Pareto Model Algorithm is consistently the best of these algorithms for estimating view size.

Suggested Citation

  • Thomas P. Nadeau & Toby J. Teorey, 2003. "A Pareto Model for OLAP View Size Estimation," Information Systems Frontiers, Springer, vol. 5(2), pages 137-147, April.
    • Handle: RePEc:spr:infosf:v:5:y:2003:i:2:d:10.1023_a:1022693305401
    DOI: 10.1023/A:1022693305401
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    Cited by:

    1. Elbatal I., 2013. "The Kumaraswamy Exponentiated Pareto Distribution," Stochastics and Quality Control, De Gruyter, vol. 28(1), pages 1-8, October.

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