@inproceedings{kauppinen-et-al-spatiotemporal-2008,
  author = {Tomi Kauppinen and Riikka Henriksson and Reetta Sinkkilä and Robin Lindroos and Jari Väätäinen and Eero Hyvönen},
  title = {Ontology-based Disambiguation of Spatiotemporal Locations},
  booktitle = {Proceedings of the 1st international workshop on Identity and Reference on the Semantic
Web (IRSW2008), 5th European Semantic Web Conference 2008 (ESWC 2008)},
  year = {2008},
  month =  {June 1-5},
  publisher = {CEUR Workshop Proceedings, ISSN 1613-0073},
  address = {Tenerife, Spain},
  OPTnote = {http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-422/},
  OPTannote =    {semantic web,annotation,metadata,schema,information,knowledge management,history},
  OPTproject =   {http://www.seco.tkk.fi/projects/sw20, http://www.seco.hut.fi/projects/finnonto,http://www.seco.tkk.fi/ontologies/sapo/,http://www.seco.tkk.fi/ontologies/suo/,http://www.seco.tkk.fi/applications/kulttuurisampo/,http://www.seco.tkk.fi/services/onkipaikka/},
  abstract = {Geographic place names are semantically often highly ambiguous. For example, there are 491 places in Finland sharing the same name ”Isosaari” (great island) that are instances of several geographical 
classes, such as Island, Forest, Peninsula, Inhabited area, etc. Referencing unambiguously to a particular ”Isosaari”, either when annotating content or during information retrieval, can be quite problematic and requires usage of advanced search methods and maps for semantic disambiguation. Historical places introduce even more challenges, since historical metadata commonly make spatiotemporal references to historical 
regions and places using names whose meanings are non-existing or different in different times. This paper presents how these problems have 
been addressed in a large Finnish place ontology SUO and a historical  
geo-ontology SAPO. A location ontology server ONKI-Geo has been created for publishing the ontologies and utilizing them as mashup services. 
To demonstrate the usability of our ontologies, two case applications in 
the cultural heritage domain are presented.}

}