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An increasing number of thematic datasets are published as RDF graphs and linked to other datasets by identifying equivalent resources in other relevant datasets. Among the set of properties usually used as data linking criteria, geolocation (addresses, locations, coordinates) remains one of the most commonly used. However, resources that actually refer to complex topographic features are generally described by very simple geolocation properties, such as a position defined by coordinates (long, lat). On the other hand, geographic reference datasets provide more precise geometric information about geographic features. Interlinking thematic linked open datasets with geographic reference datasets would enable us to take advantage of both information sources to link independent thematic datasets and create rich cartographic applications for data visualization. This data linking task is generally performed by comparing properties values of each resource of a given data set, with homologous properties of the resources described in other datasets [3]. In the field of geographic databases, data matching
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