Encyclopedia of Database Systems

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

Multidimensional Data Formats

  • Amarnath Gupta
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_1309

Definition

The term “multidimensional data” is used in two different ways in data management. In the first sense, it refers to data aggregates created by different groupings of relational data for on-line analytical processing. In the second sense, the term refers to data that can be described as arrays over heterogeneous data types together with metadata to describe them.

Example: HDF (Hierarchical Data Format) and NetCDF (network Common Data Form) are well known multidimensional data formats used in scientific applications.

Key Points

The goal of a multidimensional data format is to enable random access to very large, very complex, heterogeneous data, such that the data is self describing, sharable, compact, extendible, and archivable. For example, a composite of 900 files from a seismic simulation has been organized in HDF5 format to create a terabyte-sized dataset. One can mix tables, images, small metadata, streams of data from instruments, and structured grids all in the same HDF...

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Recommended Reading

  1. 1.
    Home page of the HDF group. Available at: http://hdf.ncsa.uiuc.edu/.
  2. 2.
    Home page of the NetCDF group. Available at: http://www.unidata.ucar.edu/software/netcdf/.
  3. 3.
    Wu K, Otoo EJ, Shoshani A. “An efficient compression scheme for bitmap indices”. Technical Report LBNL-49626, Lawrence Berkeley National Laboratory, Berkeley, 2002.Google 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