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Assessing the Completeness of Geographical Data

  • Simon Razniewski
  • Werner Nutt
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7968)

Abstract

Geographical databases are often incomplete, especially when built up incrementally and by volunteers. A prominent example is OpenStreetMap. Often such databases contain also metadata saying that certain features are completely captured for certain areas. We show how to use such metadata to analyse in which areas queries return a complete answer. Such “completeness areas” can be computed via standard spatial operations. Still larger completeness areas can be derived if not only metadata but also the actual content of the database is taken into account. Finally, we discuss which challenges arise if one wants to practically utilize the completeness metadata in OpenStreetMap.

Keywords

Spatial Database Completeness Statement Database Instance Geographical Database Ideal Database 
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 2013

Authors and Affiliations

  • Simon Razniewski
    • 1
  • Werner Nutt
    • 1
  1. 1.Free University of Bozen-BolzanoItaly

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