- From: Nathan <nathan@webr3.org>
- Date: Tue, 03 Nov 2009 18:37:34 +0000
- To: Alexandre Passant <alexandre.passant@deri.org>
- CC: public-lod@w3.org
Alexandre Passant wrote: > Hi Nathan, > > On 3 Nov 2009, at 18:16, Nathan wrote: > >> Hi All, >> >> Hoping for a little bit of guidance here on tagging & assigning >> subjects to content etc - I can't quite grasp how to describe what an >> item of content is about; particularly in the context of a normal blog >> post and with relation to tags/subjects/moat/commontag/scot etc. >> >> In short I've build a little mashup of a few services and some linked >> data which extracts terms & subjects from an item of content; and now >> I'm unclear of which ontologies to use. >> >> >> The info I can extract is "tag string" and mainly a dbpedia uri for >> the tag (to give it real meaning I guess) >> >> example.. >> string: Nuclear program of Iraq >> URI: http://dbpedia.org/resource/Nuclear_program_of_Iran >> >> also bearing in mind that I'll typically have 5-10 of these per "post". >> >> On the face of it I'd assume I should be using the following for each >> "tag" and leaving the string literal value out of the triples altogether >> http://purl.org/dc/terms/subject >> http://www.holygoat.co.uk/owl/redwood/0.1/tags/taggedWithTag >> >> however, with MOAT/CommonTag/SCOT (and no doubt others) added in to >> the equation I'm totally lost as which is the most fitting and widely >> recognised for tagging content in this manner; is it worth adding >> something to say that it was automatically tagged by a machine? or >> including the string literal value of the tag(s)? > > SCOT does not directly address the issue of 'tag meaning' but focus on > modeling tagclouds and making them interoperable. > > MOAT and CommonTag serve the same general purpose (defining what tag > means, in terms of URIs) so you can use whatever you like - however, > CommonTag is indexed by SearchMonkey so that is a clearer advantage for > it and I'd then suggest to use that one if you develop an app on the Web. > > A few differences between them however so far (it may evolve in the > future, with ongoing work on CommonTag) > > - CommonTag provides ways to make the difference between ctag:AuthorTag, > ctag:ReaderTag and ctag:AutoTag while MOAT just make the difference > between manual and auto-tag. > - MOAT models the "tagging action" (i.e. tri/quatri-partite model, based > on - and extending - the Tag Ontology) and 'global meanings' (that can > be used if you want to setup a tag server that deliver URIs / meanings > for each tags, e.g. in a company.) > > Hope that helps, > cheers, it does.. but also leaves me thinking I need to be using: dc:subject tag:taggedWith ctag:means moat:tagMeaning surely this is an issue if they're all essentially the same? and leads me to a further question.. is there any way to express that [dc:subject tag:taggedWith ctag:means moat:tagMeaning] are all equal? thanks again, nathan
Received on Tuesday, 3 November 2009 18:38:34 UTC