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Physical Design and Implementation of Spatial Data Warehouses Supporting Continuous Fields

  • Leticia Gómez
  • Alejandro Vaisman
  • Esteban Zimányi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6263)

Abstract

Although many proposals exist for extending Geographic Information Systems (GIS) with OLAP and data warehousing capabilities (a topic denoted SOLAP), only recently the importance of supporting continuous fields (i.e., phenomena that are perceived as having a value at each point in space and/or time) has been acknowledged. Examples of such phenomena include temperature, altitude, or land use. In this paper we discuss physical design issues arising when a spatial data warehouse includes a combination of spatial and non-spatial dimensions and measures, and spatio-temporal dimensions representing continuous fields. We give the syntax and semantics of the data types (and their operators) needed to support fields in SOLAP environments, and present an implementation of these types, on top of spatial-SQL. We also show how queries using the spatio-temporal operators for fields are written, parsed, and executed.

Keywords

Query Language Data Warehouse Physical Design Fact Table Land Plot 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Leticia Gómez
    • 1
  • Alejandro Vaisman
    • 2
  • Esteban Zimányi
    • 3
  1. 1.Instituto Tecnológico de Buenos AiresArgentina
  2. 2.Universidad de Buenos AiresArgentina
  3. 3.Université Libre de BruxellesBelgium

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