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Why RDFa? Sergey Chernyshev some slides from Yaron Koren’s “Introduction to RDFa”Introduction to RDFa SWNYC Meetup November 20 th, 2008 http://www.techpresentations.org/Why_RDFa?
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Status W3C recommendation since October 14, 2008: http://www.w3.org/TR/rdfa-syntax/ W3C recommendation since October 14, 2008: http://www.w3.org/TR/rdfa-syntax/ http://www.w3.org/TR/rdfa-syntax/ First proposed in 2004 First proposed in 2004
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How RDFa works Joe Semantic's personal information I work as a programmer at MegaCorp - you can contact me at js@megacorp.com, or by phone at (101) 010-1010.
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HTML source <html> Joe Programmer's contact info Joe Programmer's contact info Joe Semantic's personal information Joe Semantic's personal information I work as a programmer at I work as a programmer at MegaCorp - MegaCorp - you can contact me at you can contact me at js@megacorp.com, js@megacorp.com, or by phone at (101)010-1010. or by phone at (101)010-1010. </html>
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RDF / XML programmer programmer (101) 010-1010 (101) 010-1010 </rdf:RDF>
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Why not combine the two?
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Joe Semantic's personal information Joe Semantic's personal information Joe Semantic's personal information Joe Semantic's personal information I work as a I work as a programmer programmer at MegaCorp MegaCorp - you can contact me at js@megacorp.com, or by phone at (101)010-1010. (101)010-1010. </html>
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Three main keywords in RDFa.........defines a linked triple object object...defines an unlinked triple (literal).........creates a subject for triples
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Creating subjects... I'm currently reading Programming Perl Programming Perl by by Larry Wall Larry Wall.....
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Easier to produce Much easier then RDF/XML or N-triples Almost as easy as Almost as easy as MicroformatsMicroformats Easy to integrate with existing publishing tools – just change your HTML templates
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Easy to use Probably first to be adopted by conventional search engines because they already crawl HTML (Yahoo! Search Monkey)Yahoo! Search Monkey Can be used with JavaScript (http://www.w3.org/2006/07/SWD/RDFa/impl/js/)http://www.w3.org/2006/07/SWD/RDFa/impl/js/ Easy to integrate into current “web page” paradigm and workflow (CC license link at http://ben.adida.net/)http://ben.adida.net/
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Links RDFa.info http://rdfa.info/ http://rdfa.info/ RDFa primer http://www.w3.org/TR/xhtml-rdfa-primer/ http://www.w3.org/TR/xhtml-rdfa-primer/ Yahoo! Search Monkey http://developer.yahoo.com/searchmonkey http://developer.yahoo.com/searchmonkey [*shameless plug*] My Semantic Profile http://www.sergeychernyshev.com/profile/ http://www.sergeychernyshev.com/profile/
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