Archive for the ‘metadata’ Category

Embedding RDF into XHTML

Tuesday, January 31st, 2006

RDF/A Primer 1.0 is an effort to allow embedding RDF into XHTML. To me, this problem of “How do I get my RDF into my web pages?” is only second to creating a friendly RDF XML format. Solve these two problems and you’ll immediately see a greater adoption of semantic web technologies.

> RDF/A is a set of attributes used to embed RDF in XHTML. An important goal of RDF/A is to achieve this RDF embedding without repeating existing XHTML content when that content is the metadata. Though RDF/A was initially designed for XHTML2, one should be able to use RDF/A with other XML dialects, e.g. XHTML1, SVG, given proper schema additions.

From what I could see, this is a simple way to add more semantics to your web page. It doesn’t appear that the authors explicitly mention how to get the semantics out of the document, though. However, I’ve never been too fond on GRDDL and it’s use of XSLT so hopefully RDF/A will provide an easier metadata extraction technigue.

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On the Quality of Metadata…

Thursday, January 19th, 2006

Stefano’s Linotype ~ On the Quality of Metadata…

> One thing we figured out a while ago is that merging two (or more) datasets with high quality metadata results in a new dataset with much lower quality metadata. The “measure” of this quality is just subjective and perceptual, but it’s a constant thing: everytime we showed this to people that cared about the data more than the software we were writing, they could not understand why we were so excited about such a system, where clearly the data was so much poorer than what they were expecting.

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