- From: Johan De Smedt <johan.de-smedt@tenforce.com>
- Date: Thu, 3 May 2012 06:49:15 +0200
- To: "'Peter Ansell'" <ansell.peter@gmail.com>
- Cc: "'Bob DuCharme'" <bob@snee.com>, <public-esw-thes@w3.org>
Thanks Peter, So a change to make SKOS RDF-1.1 aligned would need labels to have as a range rdf:langString (or the union of xsd:string and rdf:langString). Kind Regards, Johan De Smedt > -----Original Message----- > From: Peter Ansell [mailto:ansell.peter@gmail.com] > Sent: Thursday, 03 May, 2012 06:29 > To: Johan De Smedt > Cc: Bob DuCharme; public-esw-thes@w3.org > Subject: Re: future of SKOS constraint S12 in an RDF 1.1 world? > > Supporting language tags in RDF-1.1 is one downside of throwing away > the concept of a plain literal. The issue seems to be closed in the > workgroup [1] with the resolution as documented on [2]. > > [1] http://www.w3.org/2011/rdf-wg/track/issues/71 > [2] http://lists.w3.org/Archives/Public/public-rdf-wg/2011Sep/0083.html > > On 3 May 2012 14:08, Johan De Smedt <johan.de-smedt@tenforce.com> wrote: > > Hi Peter, Bob, > > > > > > > > If a change is needed, would rdf:PlainLiteral > > (http://www.w3.org/TR/rdf-plain-literal/) be a candidate to support language > > tags? > > > > > > > > Kind Regards, > > > > > > > > Johan De Smedt > > > >> -----Original Message----- > > > >> From: Peter Ansell [mailto:ansell.peter@gmail.com] > > > >> Sent: Thursday, 03 May, 2012 01:01 > > > >> To: Bob DuCharme > > > >> Cc: public-esw-thes@w3.org > > > >> Subject: Re: future of SKOS constraint S12 in an RDF 1.1 world? > > > >> > > > >> Hi Bob, > > > >> > > > >> That is unusual that the SKOS spec did not allow for xsd:string > > > >> literals at the time. People have been typing string literals as > > > >> xsd:string since well before SKOS came around. > > > >> > > > >> If one interprets the SKOS spec liberally with respect to RDF-1.1 then > > > >> it would make sense to simply read "plain literals" as "xsd:string > > > >> typed literals". The basis for this pragmatic change would be that > > > >> "plain literals" will have no meaning soon, even if RDF-1.0 documents > > > >> are still going to be readable by RDF-1.1 parsers. > > > >> > > > >> Is it a big issue to change the SKOS spec? > > > >> > > > >> Cheers, > > > >> > > > >> Peter > > > >> > > > >> On 2 May 2012 23:00, Bob DuCharme <bob@snee.com> wrote: > > > >> > At http://www.w3.org/TR/2009/REC-skos-reference-20090818/#L1329 the SKOS > > > >> > spec says the following for constraint S12: "The rdfs:range of each of > > > >> > skos:prefLabel, skos:altLabel and skos:hiddenLabel is the class of RDF > >> > plain > > > >> > literals." As I understand this, the triple {:myConcept1 skos:prefLabel > >> > "my > > > >> > home page"^^xsd:string} violates this constraint, but wouldn't if the > >> > object > > > >> > was just "my home page". > > > >> > > > > >> > At http://www.w3.org/TR/rdf11-concepts/#section-Graph-Literal, the RDF > >> > 1.1 > > > >> > Concepts and Abstract Syntax says "This section is a major departure > >> > from > > > >> > RDF 2004 as simple literals are now treated as syntactic sugar for > > > >> > xsd:string typed literals." > > > >> > > > > >> > If simple literals are treated as xsd:string typed literals, what would > >> > this > > > >> > mean for constraint S12? > > > >> > > > > >> > thanks, > > > >> > > > > >> > Bob > > > >> > > > > >> > > > > >> > > > > >> >
Received on Thursday, 3 May 2012 04:49:49 UTC