Embedded RDF

Embedded RDF (eRDF) is a syntax for writing HTML in such a way that the information in the HTML document can be extracted (with an eRDF parser or XSLT stylesheet) into Resource Description Framework.

It was invented by Ian Davis in 2005, and partly inspired by microformats, a simplified approach to semantically annotate data in websites.^[1]

See also

• RDFa, W3C's approach at embedding RDF
• GRDDL, a way to extract (annotated) data out of XHTML and XML documents and transform it into an RDF graph

References

External links

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• eRDF

Tools for eRDF

• eRDF scraper for Simile's PiggyBank
• ARC PHP classes, includes eRDF parser
• Raptor RDF parser toolkit, supports eRDF
• an XSLT stylesheet to transform eRDF in XHTML to RDF/XML
• eRDF Greasemonkey script to detect, and optionally parse eRDF in the page (looks for the eRDF profile on the head element)

Web Services that extract RDF from eRDF

• ARC eRDF extract
• Talis eRDF extract
• triplr eRDF extract

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