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Exploiting geographic references of documents in a geographical information retrieval system using an ontology-based index / N. Brisaboa in Geoinformatica, vol 14 n° 3 (July 2010)  

Public [article]  inGeoinformatica > vol 14 n° 3 (July 2010) . - pp 307 - 331 Titre : Exploiting geographic references of documents in a geographical information retrieval system using an ontology-based index Type de document : Article/Communication Auteurs : N. Brisaboa, Auteur ; M. Luaces, Auteur ; Angeles S. Places, Auteur ; D. Seco, Auteur Année de publication : 2010 Article en page(s) : pp 307 - 331 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] coordonnées géographiques [Termes IGN] corpus [Termes IGN] données localisées [Termes IGN] extraction automatique [Termes IGN] index spatial [Termes IGN] ontologie [Termes IGN] recherche d'information géographique [Termes IGN] requête non spatiale [Termes IGN] requête spatiale [Termes IGN] système d'information géographique Résumé : (Auteur) Both Geographic Information Systems and Information Retrieval have been very active research fields in the last decades. Lately, a new research field called Geographic Information Retrieval has appeared from the intersection of these two fields. The main goal of this field is to define index structures and techniques to efficiently store and retrieve documents using both the text and the geographic references contained within the text. We present in this paper two contributions to this research field. First, we propose a new index structure that combines an inverted index and a spatial index based on an ontology of geographic space. This structure improves the query capabilities of other proposals. Then, we describe the architecture of a system for geographic information retrieval that defines a workflow for the extraction of the geographic references in documents. The architecture also uses the index structure that we propose to solve pure spatial and textual queries as well as hybrid queries that combine both a textual and a spatial component. Furthermore, query expansion can be performed on geographic references because the index structure is based in an ontology. Copyright Springer Numéro de notice : A2010-103 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-010-0106-3 Date de publication en ligne : 30/01/2010 En ligne : https://doi.org/10.1007/s10707-010-0106-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30299 [article]

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