linked data
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DBpedia is a crowd-sourced community effort to extract structured information from Wikipedia and make this information available on the Web.
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Abstract There are many situations where it would be useful to be able to publish multi-dimensional data, such as statistics, on the web in such a way that it can be linked to related data sets and concepts. The Data Cube vocabulary provides a means to do this using the W3C RDF (Resource Description Framework) standard.