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Using co-occurrence models for placename disambiguation / S. Overell in International journal of geographical information science IJGIS, vol 22 n° 3 (march 2008)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 22 n° 3 (march 2008) . - pp 265 - 287 Titre : Using co-occurrence models for placename disambiguation Type de document : Article/Communication Auteurs : S. Overell, Auteur ; S. Ruger, Auteur Année de publication : 2008 Article en page(s) : pp 265 - 287 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] accès aux données localisées [Termes IGN] matrice de co-occurrence [Termes IGN] recherche d'information géographique [Termes IGN] résolution d'ambiguïté [Termes IGN] toponyme Résumé : (Auteur) This paper describes the generation of a model capturing information on how placenames co-occur together. The advantages of the co-occurrence model over traditional gazetteers are discussed and the problem of placename disambiguation is presented as a case study. We begin by outlining the problem of ambiguous placenames. We demonstrate how analysis of Wikipedia can be used in the generation of a co-occurrence model. The accuracy of our model is compared to a handcrafted ground truth; then we evaluate alternative methods of applying this model to the disambiguation of placenames in free text (using the GeoCLEF evaluation forum). We conclude by showing how the inclusion of placenames in both the text and geographic parts of a query provides the maximum mean average precision and outline the benefits of a co-occurrence model as a data source for the wider field of geographic information retrieval (GIR). Copyright Taylor & Francis Numéro de notice : A2008-139 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810701626236 En ligne : https://doi.org/10.1080/13658810701626236 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29134 [article]

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