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Publishing Reference Geodata on the Web : Opportunities and Challenges for IGN France

Abstract : The French national mapping agency (IGN) produces several different but complementary geographic vector reference databases delivered in traditional GIS formats. However, linked data users have different expectations and habits, such as the need to browse an entire data catalogue in RDF using the "follow-your-nose" navigation capacity from one graph to another. Besides, traditional GIS data formats are not interoperable with RDF. Yet, all these geographic datasets could be used with benefits on the Web of data, either with direct georeferencing through geographic primitives, or indirect one through postal addresses. In this paper, we aim to contribute to the georeferencing of datasets published on the Web of data by providing such resources for French context. Firstly, we propose two vocabularies designed for representing structured geometries defined with coordinates expressed in any Coordinates Reference System (CRS). Secondly, we reuse these vocabularies and the CRSs' dataset to publish a reference dataset on administrative units that can also be reused for indirect georeferencing purposes. Finally , we also propose two vocabularies for describing geographic feature types. In addition to these resources, we also present a comprehensive workflow for easily publishing geographic data on the Web of data.
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https://hal.archives-ouvertes.fr/hal-02388085
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Ghislain Atemezing, Nathalie Abadie, Raphaël Troncy, Bénédicte Bucher. Publishing Reference Geodata on the Web : Opportunities and Challenges for IGN France. Terra Cognita 2014, 6th International Workshop on the Foundations, Technologies and Applications of the Geospatial Web., 2014, Riva del Garda, Italy. ⟨hal-02388085⟩

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