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Tag: Linked Data

DEC 14th 2010

What is the Semantic Web?

Published 7 years ago by David Siegel

There's a lot of confusion about what the semantic web is, exactly. There are so many definitions that I can't possibly unify everything in one article. Some people say it's all about linked data, RDF, and ontologies. Some people call it "Web 3.0." (I recently gave a keynote speech at a "Web 3.0" conference, where many of the people had confused "Web 3.0" with "Web in 3D." I'm sure many people in the audience wondered why I wasn't talking about the future 3D web and, instead, was talking about information.) Some people say it will lead us to the singularity. Rather than try to define these terms, I propose we abandon them. I propose we stop talking about complicated solutions and start talking about problems.

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DEC 18th 2008

Calling All RDF Dumps

Published 8 years ago by James Simmons

Today on the Linking Open Data mailing list, Kingsley Idehen of OpenLink Software announced that he is preparing to load the entire LOD cloud into Virtuoso 6.0 Cluster Edition. The datasets are being added to a table on the ESW wiki, making it convenient for anyone doing Semantic Web research to get a hold of the datasets. Once all the datasets are added we should have a better idea of how much linked data there really is out there. This may also raise the bar for other triple stores and force them to develop methods for storing several billion triples.

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OCT 30th 2008

Cross-Pollinating DBpedia and FreebaseNow that Freebase is available as Linked Data a big question that comes to mind is whether these two major projects will move to assimilate one another. DBpedia and Freebase – two endeavors primarily focused on curating unstructured and semi-structured data about everything and releasing it back into the wild (with structure) – get the bulk of their information from Wikipedia, so the amount of topical overlap is assumed to be extremely high. DBpedia gains new information when it extracts data from the latest Wikipedia dump, whereas Freebase, in addition to Wikipedia extractions, gains new information through its userbase of editors.

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FreebaseAt ISWC2008 Freebase released its new RDF service for generating RDF representations of Freebase topics, allowing Freebase to be used as Linked Data! To obtain the RDF data for a topic send a GET request to http://rdf.freebase.com/rdf/some.topic.id where "some.topic.id" is replaced by the desired topic identifier (slashes in the identifier must be replaced by dots). Topic data can be represented as N3, RDF/XML or Turtle depending on the preferences expressed in your client's HTTP Accept header. Try it out with the Freebase topic Semantic Web.

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