Encyclopedia of Database Systems

2018 Edition
| Editors: Ling Liu, M. Tamer Özsu

Query Evaluation Techniques for Multidimensional Data

  • Amarnath Gupta
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_1283

Synonyms

Spatial data

Definition

There are two senses of the term “multidimensional data.” The first relates to the data warehousing and online analytical processing (OLAP). The second sense of the term, used mostly in the context of scientific data, refers to variants of array-representable data where the dimensionality refers to the dimensions of the array. Query processing for this class of data uses array algebras [3] and array-specific storage [1] indexing techniques [4].

Key Points

In many scientific applications, data can be represented as multidimensional arrays. For example, the current flow in oceans is a time-varying vector field and can be roughly viewed as 4-dimensional data. In many applications the array may not be uniform, but it can be nested, and even irregular. Query evaluation on this kind of data is greatly dependent on applications. Some applications need to perform operations like value-based clustering on the data, while other applications need fast computation...

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Recommended Reading

  1. 1.
    Furtado P Baumann P. Storage of multidimensional arrays based on arbitrary tiling. In: Proceedings of the 15th International Conference on Data Engineering; 1999. p. 480–9.Google Scholar
  2. 2.
    Howe B, Maier D. Algebraic manipulation of scientific datasets. VLDB J. 2005;14(4):397–416.CrossRefGoogle Scholar
  3. 3.
    Marathe AP, Salem K. Query processing techniques for arrays. VLDB J. 2002;11(1):68–91.CrossRefGoogle Scholar
  4. 4.
    Sinha RR, Winslett M. Multi-resolution bitmap indexes for scientific data. ACM Trans Database Syst. 2007;32(3):16.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.San Diego Supercomputer CenterUniversity of California San DiegoLa JollaUSA

Section editors and affiliations

  • Amarnath Gupta
    • 1
  1. 1.San Diego Supercomputer CenterUniv. of California San DiegoLa JollaUSA