20,599 research outputs found

    GĂ©Onto : Enrichissement d'une taxonomie de concepts topographiques

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    National audienceIn this paper we present the GĂ©Onto project, aiming in particular to build an ontology of topographic concepts. This ontology is made by enrichment of a first taxonomy developed beforehand, through the analysis of two types of textual documents: technical database specifications and description of journeys. This work relies on natural language processing and ontology alignment techniques, as well as external knowledge resources such as dictionaries and gazetteers

    Analyses linguistiques et techniques d'alignement pour créer et enrichir une ontologie topographique

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    National audienceOne of the goals of the GéOnto project is to build an ontology of topographic concepts. This ontology results from the enrichment of a first taxonomy developed beforehand, through the analysis of two types of textual documents: technical database specifications and description of journeys. This work relies on natural language processing and ontology alignment techniques, as well as external knowledge resources such as dictionaries and gazetteers.Dans cet article, nous présentons le projet GéOnto dont un des buts est de construire une ontologie de concepts topographiques. Cette ontologie est réalisée par enrichissement d'une première taxonomie de termes réalisée précédemment, et ce grâce à l'analyse de deux types de documents textuels : des spécifications techniques de bases de données et des récits de voyage. Cet enrichissement s'appuie sur des techniques automatiques de traitement du langage et d'alignement d'ontologies, ainsi que sur des connaissances externes comme des dictionnaires et des bases de toponymes

    Construction et enrichissement automatique d'ontologie Ă  partir de ressources externes

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    National audienceAutomatic construction of ontologies from text is generally based on retrieving text content. For a much more rich ontology we extend these approaches by taking into account the document structure and some external resources (like thesaurus of indexing terms of near domain). In this paper we describe how these external resources are at first analyzed and then exploited. This method has been applied on a geographical domain and the benefit has been evaluated
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