The Geo-Net-PT/Yahoo! GeoPlanet concordance

نویسندگان

  • João D Ferreira
  • David S Batista
  • Francisco M Couto
  • Mário J Silva
چکیده

Background: Geo-Net-PT is a geospatial ontology representing the Portuguese territory and the relations between the several locations within it. Yahoo! GeoPlanet is a geospatial ontology that covers the whole world. To interlink the two ontologies and reduce the effects of repeated information, we propose an automatic alignment between their administrative parts, based on name similarity and physical closeness. Results: After the matching process, we found 18,588 matches, corresponding to 35% of the considered features in Geo-Net-PT and to 71% in Yahoo! GeoPlanet. Among these, there are correct matches for each of the 18 districts and 308 municipalities. Only 1% of the matches failed the validation process. Conclusions: This alignment represents a step further for the exploitation of geospatial ontologies, since it shows that it is possible to effectively cross-link geographical references between a broader ontology, such as Yahoo GeoPlanet, and a narrower yet more comprehensive one, such as Geo-Net-PT, providing the broader ontology with greater detail and complementary information.

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تاریخ انتشار 2010