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Sophox
Blazegraph is an open source triplestore and graph database, written in Java. It has been abandoned since 2020 and is known to be used in production by Wikimedia Deutschland, WMDE for the Wikidata SPARQL endpoint. It is licensed under the GNU General Public License#Version 2, GNU GPL (version 2). Amazon acquired the Blazegraph developers and the Blazegraph open source development was essentially stopped in April 2018. Early history The system was first known as ''Bigdata.'' Since release of version 1.5 (12 February 2015), it is named ''Blazegraph''. Prominent users * The Wikimedia Foundation uses Blazegraph for the Wikidata]Query Service which is a SPARQL endpoint. * Sophox, a fork of the Wikidata Query Service, specializes in OpenStreetMap queries. * ThDatatourismeproject uses Blazegraph as the database platform; however, GraphQL is used as the query language instead of SPARQL. Notable features * ''RDF*'' — an alternative approach to Resource Description Framework, R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenStreetMap
OpenStreetMap (abbreviated OSM) is a free, Open Database License, open geographic database, map database updated and maintained by a community of volunteers via open collaboration. Contributors collect data from surveying, surveys, trace from Aerial photography, aerial photo imagery or satellite imagery, and import from other freely licensed geodata sources. OpenStreetMap is Free content, freely licensed under the Open Database License and is commonly used to make electronic maps, inform turn-by-turn navigation, and assist in humanitarian aid and Data and information visualization, data visualisation. OpenStreetMap uses its own data model to store geographical features which can then be exported into other GIS file formats. The OpenStreetMap website itself is an Web mapping, online map, geodata search engine, and editor. OpenStreetMap was created by Steve Coast in response to the Ordnance Survey, the United Kingdom's national mapping agency, failing to release its data to the pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
