Until now, we've offered semantic content in JSON, XML or HTML. Today we're adding RDF to the menu.
While a new output format may not sound like a big deal, we're excited because RDF is the language of the semantic web, with a large and ever-increasing pool of users, tools, and data. By generating structured data in RDF format, linking data with existing data sets becomes much simpler. Links between data sets are the real strength of the semantic web because they make searching across diverse data sets are easy as writing a SPARQL query, as these examples demonstrate.
For now, the RDF triples we generate contain exactly the same data as the corresponding JSON output, which means our RDF data isn't automatically linked to any third-party data sources. In the coming weeks we plan to roll out automatic entity linking to public data sets like DBpedia.
Details about the RDF triples we generate are available on the Extractiv wiki.