The role of ontology in improving gazetteer interaction

  • Authors:
  • K. Janowicz;C. Kessler

  • Affiliations:
  • Institute for Geoinformatics, University of Munster, Germany;Institute for Geoinformatics, University of Munster, Germany

  • Venue:
  • International Journal of Geographical Information Science - Digital Gazetteer Research
  • Year:
  • 2008

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Abstract

Gazetteers are more than basic place name directories containing names and locations for named geographic places. Most of them contain additional information, including a categorization of gazetteer entries using a typing scheme. This paper focuses on the nature of these categorization schemes. We argue that gazetteers can benefit from an ontological approach to typing schemes, providing a formalization that will better support gazetteer applications, maintenance, interoperability, and semi-automatic feature annotation. We discuss the process of developing such an ontology as a modification of an existing feature type thesaurus; the difficulties in mapping from thesauri to ontologies are described in detail. To demonstrate the benefits of a categorization based on ontologies, a new gazetteer Web (and programming) interface is introduced and the impact on gazetteer interoperability is discussed.