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How is RDFa used?

I was wondering how RDFa is used. More specifically, if the semantic data network consists of triplets in RDF, how does the RDFa content user use this data? Do I need to convert it using the GRDDL tool? Or are there other methods for getting semantic data from RDFa websites?

Thanks Bruce

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One way is to use the RDFa parser to extract triples from an RDFa document, and then process them in your application. I guess this is what Google and Co. are doing on their search engines.

SPARQL ( , ) , API, SPARQL 1.1 LOAD, SPARQL . .

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RDF. , , dbpedia, sparql, . .

rdf , Jena (Java).

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What is it used for? many things. You can do a very powerful job with this data model. One of the trivial to understand is to think in social networks: people (resource, node graphics), connected by relationships (friendOf) and described (isAged, livesIn). With the request, you can find all 23-year-old people with at least three women friends and living in Paris.

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