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Normalizing Spatial Information to Improve Geographical Information Indexing and Retrieval in Digital Libraries

  • Damien Palacio
  • Christian Sallaberry
  • Mauro Gaio
Conference paper
Part of the Lecture Notes in Geoinformation and Cartography book series (LNGC)

Abstract

Our contribution is dedicated to geographic information contained in unstructured textual documents. The main focus of this article is to propose a general indexing strategy that is dedicated to spatial information, but which could be applied to temporal and thematic information as well. More specifically, we have developed a process flow that indexes the spatial information contained in textual documents. This process flow interprets spatial information and computes corresponding accurate footprints. Our goal is to normalize such heterogeneous grained and scaled spatial information (points, polylines, polygons). This normalization is carried out at the index level by grouping spatial information together within spatial areas and by using statistics to compute frequencies for such areas and weights for the retrieved documents.

Keywords

Spatial Information Vector Space Model Spatial Index Thematic Information Tile Frequency 
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 GmbH Berlin Heidelberg 2012

Authors and Affiliations

  • Damien Palacio
    • 1
  • Christian Sallaberry
    • 1
  • Mauro Gaio
    • 1
  1. 1.LIUPPA, Université de Pau, avenue de l’UniversitéPauFrance

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