Publishing reference geodata on the web: Opportunities and challenges for IGN France

Atemezing, Ghislain Auguste; Abadie, Nathalie; Troncy, Raphaël; Bucher, Bénédicte
TC-SSN 2014, 6th International Workshop on the Foundations, Technologies and Applications of the Geospatial Web and 7th International Workshop on Semantic Sensor Networks co-located with 13th International Semantic Web Conference (ISWC 2014), October 20, 2014, Riva del Garda, Italy

The French national mapping agency (IGN) produces several di erent but complementary geographic vector reference databases delivered in traditional GIS formats. However, linked data users have di erent 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 bene ts 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 de ned 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 work ow for easily publishing geographic data on the Web of data.

Riva Del Garda
Data Science
Eurecom Ref: