- From: Young,Jeff (OR) <jyoung@oclc.org>
- Date: Tue, 8 Feb 2011 12:25:06 -0500
- To: "Karen Coyle" <kcoyle@kcoyle.net>
- Cc: <open-bibliography@lists.okfn.org>, "public-lld" <public-lld@w3.org>
Karen, Let's use you and I as an example. Assume that this FRBR Event already exists somewhere, but doesn't have any prefLabel assigned: ex:World_War_I a frbr:Event ; frbr:hasTerm "World War I" ; frbr:hasTerm "Great War" ; frbr:hasTerm "WWI" . If you want to assign a prefLabel for your community, you could do so like this: karen:ww1 a skos:Concept ; skos:inScheme karen:myScheme ; skos:prefLabel "World War I" ; foaf:focus ex:World_War_I. I could do the same for my community: jeff:gw a skos:Concept ; skos:inScheme jeff:myScheme ; skos:prefLabel "Great War" ; foaf:focus ex:World_War_I . Here is a SPARQL query that would allow your community to determine its prefLabel for the FRBR Event: SELECT ?prefLabel WHERE { ?concept skos:inScheme karen:myScheme ; skos:prefLabel ?prefLabel ; foaf:focus ex:World_War_I . } Does this help? Jeff > -----Original Message----- > From: Karen Coyle [mailto:kcoyle@kcoyle.net] > Sent: Tuesday, February 08, 2011 11:59 AM > To: Young,Jeff (OR) > Cc: open-bibliography@lists.okfn.org; public-lld > Subject: RE: New BNB sample data available > > Quoting "Young,Jeff (OR)" <jyoung@oclc.org>: > > > > > I think we agree that the MESH and LCSH Concepts are > owl:differentFrom > > despite their skos:exactMatch relationship. I assume this is the > source > > of Karen's confusion on the identity of "the thing" (concept) they > > presumably have in common. > > > > Jeff, I have no problem with MeSH and LCSH -- those are different > vocabularies, and often the terms are not equivalents. I'm concerned > about future vocabularies when we've gotten vocabularies out beyond > institutional silos and different folks want to be compatible but do > not want to use the same display for their users. This would mean > using the same URI but a different human display. It seems to me that > RDF would potentially allow that, but SKOS seems to close down that > possibility. > > kc > > > > > > > > I admit this proposal is disconcerting because it uses both > skos:Concept > > and frbr:Concept, but it would resolve the problem of different > > prefLabels in different schemes for the same thing. For example: > > > > > > > > mesh:concept1 a skos:Concept ; > > > > skos:inScheme mesh:scheme ; > > > > skos:exatcMatch lcsh:concept1 ; > > > > skos:prefLabel "The MESH term" ; > > > > foaf:focus frbr:concept1 . > > > > > > > > lcsh:concept1 a skos:Concept ; > > > > skos:inScheme lcsh:scheme ; > > > > skos:exactMatch mesh:concept1 ; > > > > skos:prefLabel "The LCSH term" ; > > > > foaf:focus frbr:concept1 . > > > > > > > > # The primary entity > > > > frbr:concept1 a frbr:Concept ; > > > > frbr:hasTerm "The LCSH term" ; > > > > frbr:hasTerm "The MESH term" ; > > > > frbr:hasTerm "other term" . > > > > > > > > Note that FRBR:Concept doesn't have a property to express prefLabel > (and > > IMO shouldn't). This same pattern would work for other types of > primary > > entities like frbr:Person, frbr:CorporateBody, etc. > > > > > > > > Jeff > > > > > > > > From: sesuncedu@gmail.com [mailto:sesuncedu@gmail.com] On Behalf Of > > Simon Spero > > Sent: Monday, February 07, 2011 4:33 PM > > To: Karen Coyle > > Cc: Young,Jeff (OR); open-bibliography@lists.okfn.org; public-lld > > Subject: Re: New BNB sample data available > > > > > > > > On Mon, Feb 7, 2011 at 1:49 PM, Karen Coyle <kcoyle@kcoyle.net> > wrote: > > > > Quoting "Young,Jeff (OR)" <jyoung@oclc.org > > <mailto:jyoung@oclc.org> >: > > > > I agree that you have stated these as equivalents, but do you > > agree that these two concepts use different identifiers? > > > > > > > > kc > > > > > > > > The constraint is stronger than that; If two Things have different > > preferred labels in a given language in the same conceptScheme, then > it > > is necessarily true that they have different identifiers, *and* that > the > > identifiers are owl:differentFrom. > > > > > > > > Notice that LCSH has different schemes for juvenile and non-juvenile > > headings (some of which have the same preferred label/Descriptor). > > Terms can be in different registers > > <http://www.ttt.org/clsframe/datcats02.html#register> without being > in > > different languages. There's even an ISO registry of register - > > http://www.isocat.org/rest/dc/1988 . > > > > > > > > Also, if distinct uris which refer to Concepts which exactMatch, the > > Concepts have the same extension, but the uris need not refer to the > > same Concept object (in fact, in the case discussed above, the URIs > > cannot be referring to the same object). > > > > > > > > BTW, SKOS explicitly declines to make exactMatch reflexive, though > it > > does make it Symmetric and Transitive, which means that if A exactly > > matches anything, it exactly matches itself. > > > > > > > > Simon > > > > > > > > > > > > > > > > -- > Karen Coyle > kcoyle@kcoyle.net http://kcoyle.net > ph: 1-510-540-7596 > m: 1-510-435-8234 > skype: kcoylenet >
Received on Tuesday, 8 February 2011 17:26:43 UTC