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elearning2.0 :: putting the 'oh!' back into elearning Weblog 32 entries 04-August-2006 1 authors
Using simple online tools to 'make' a repository Blog Entry 1 reply1 resource14.57 Kb 30-September-2005 Mike Malloch
show or hide details for this item Tag ontology Discussion Topic 0 replies 21-September-2006 Danny Ayers
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21-September-2006 18:59:58
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Danny Ayers
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Is there a middle way between ad-hoc tagging and controlled metadata vocabularies?
Yes, there is. Tags can be associated with URIs, making them globally unambiguous identifiers. So e.g. there's a tag: http://del.icio.us/tag/photography Which means "photography" according to del.icio.us. This may or may not mean the same as : http://dannyayers.com/tag/photography Which means "photography" according to me. Relationships between tags (equivalence, subsets etc) can be expressed in the Semantic Web languages of RDF and OWL, in particular using the SKOS vocabulary and/or the Tag Ontology.

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