How does it see the semantic data for a URL

Thomas Wessel

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Nov 16, 2011, 5:30:29 PM11/16/11

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How is semantic data linked to an ordinary an ordinary website or
page?

E.g. if I go to http://sioc-project.org/firefox in Firefox, Semantic
Radar tells me that there that there is some semantic data available
and shows their links.

But how does Semantic Radar get to know about this semantic data?

Thomas

Thomas Schandl

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Nov 17, 2011, 1:19:42 PM11/17/11

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Hi Thomas,

Semantic Radar looks for autodiscovery links in the <head>, e.g. http://sioc-project.org/firefox has this in there:

<link rel="media" type="application/rdf+xml" title="SIOC" href="http://sioc-project.org/sioc/node/77"/>
<link rel="media" type="application/rdf+xml" title="FOAF" href="http://captsolo.net/semweb/foaf-captsolo.rdf"/>

Best regards,
Thomas

Thomas

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Thomas Larsen Wessel

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Nov 17, 2011, 1:27:13 PM11/17/11

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Thanks :)

Thomas Larsen Wessel

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Nov 17, 2011, 3:11:02 PM11/17/11

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If anybody should read this thread looking for the same understanding that I was looking for, you should have a look at these two links:

http://www.w3.org/TR/rdf-syntax-grammar/#section-rdf-in-HTML

http://stackoverflow.com/questions/8156025/how-do-i-see-the-semantic-data-for-a-url

Uldis Bojars

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Nov 20, 2011, 5:13:26 PM11/20/11

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> > Semantic Radar looks for autodiscovery links in the <head>, e.g.
> >http://sioc-project.org/firefox has this in there:
>
> > <link rel="media" type="application/rdf+xml" title="SIOC" href="
> >http://sioc-project.org/sioc/node/77"/>

It also detects RDFa in cases where the document uses the XHTML+RDFa
1.0 doctype.

Uldis

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