- From: Sini, Margherita (KCEW) <Margherita.Sini@fao.org>
- Date: Tue, 04 Dec 2007 16:33:19 +0100
- To: Antoine Isaac <aisaac@few.vu.nl>
- Cc: Alasdair Gray <agray@dcs.gla.ac.uk>, public-esw-thes@w3.org, public-swd-wg@w3.org
Hi Antoine, Thanks for the reply. Actually, the second bit about hierarchy of mapping relationship, was not related to Alasdair's proposal... was just something that I noticed... Thanks -----Original Message----- From: Antoine Isaac [mailto:aisaac@few.vu.nl] Sent: 04 December 2007 16:15 To: Sini, Margherita (KCEW) Cc: Alasdair Gray; public-esw-thes@w3.org; public-swd-wg@w3.org Subject: Re: [SKOS] A new proposal for ISSUE-39 ConceptualMappingLinks Hi Margherita, (and thank you for your comments) > > I wonder why we cannot apply also the mapping relations between > concept schemes? > But I have put the mapping relations in [3] for this purpose! Have I said the contrary somewhere? I'm just saying that for certain situations -- which are not about mapping, but extension -- we can use semantic relations (broader etc) between different schemes as well. But that does not say that skos:braoder will be used for mapping. > I went to the [3] page and I still think the proposal from Alasdair > was more correct for me. > Could you please clarify? I don't see why [3] contradicts Alasdair's proposal > In [3] I just notice this, but I do not think this is true (antough I > may need to think better to this): > > skos:exactMatch rdfs:subPropertyOf skos:broadMatch. > skos:exactMatch rdfs:subPropertyOf skos:narrowMatch. > skos:broadMatch rdfs:subPropertyOf skos:overlappingMatch. > Well actually I had exactly the same thought, except that my thinking better to this did not bring obvious conclusions ;-) Hence my marking these axioms as controversial in [3]. > Hope this helps > It does! (except for the second bit about comparing Alasdair's proposal and mine, which is unclear for me, sorry...) Cheers, Antopine > Margherita > > -----Original Message----- > From: public-esw-thes-request@w3.org > [mailto:public-esw-thes-request@w3.org] > On Behalf Of Antoine Isaac > Sent: 29 November 2007 12:48 > To: Alasdair Gray > Cc: public-esw-thes@w3.org; public-swd-wg@w3.org > Subject: Re: [SKOS] A new proposal for ISSUE-39 ConceptualMappingLinks > > > > Hi Alasdair, > > >> My interpretation of the fact that there is development of a skos >> mapping vocabulary, which has been further confirmed by Antoine's >> email, is that the semantic relationships defined in the skos core [2] >> are to be used only for relationships between concepts in the same >> scheme. >> >> > > Actually no! This is loose wording from me. I should have emphasized > that the standard semantic relationship (skos:broader etc) are > *typically* intra-thesaurus, while the mapping links are *typically* > inter-thesaurus. Actually, I do think we might need skos:broader to > apply between concept from different schemes for very specific > situations like concept scheme (controlled) extension. > But I think this is still not settled in the WG, and it was not my aim > in [3] to make a decision about this. I'll try to remove the > controversial text... > > >> A question I would like to raise is how can I specify a mapping >> between a collection in one vocabulary and a concept in another? It >> really is the collection as a whole that matches the concept. However, >> the collection becomes an anonymous node in the rdf. Is it the case >> that each member of the collection should be specified as a >> narrowMatch of the concept? >> >> > > Indeed the very last part of [3] mentions this problem of mapping > instances of skos:Concept to something else. > Side comment: I don't see why collection would become anonymous nodes: > [4] still say that they are of type skos:Collection, for instance... > > Cheers, > > Antoine > >> [1] http://www.ivoa.net/forum/semantics/0711/0617.htm >> [2] http://www.w3.org/TR/2005/WD-swbp-skos-core-guide-20051102 >> >> > [3] > http://www.w3.org/2006/07/SWD/wiki/SkosDesign/ConceptualMapping/ProposalTwo > [4] > http://www.w3.org/2006/07/SWD/wiki/SKOS/Reference#head-1bd16ef1c7db5b34accddb > d17146f8e90c15f7f8 > > > >
Received on Tuesday, 4 December 2007 15:33:33 UTC