- From: Daniel Rubin <rubin@med.stanford.edu>
- Date: Mon, 17 Dec 2007 13:22:44 -0800
- To: "Sini, Margherita (KCEW)" <Margherita.Sini@fao.org>, Ed Summers <ehs@pobox.com>,public-swd-wg@w3.org,public-esw-thes@w3.org
Sorry, but I disagree with the suggestion that people define transitivity for themselves. SKOS should not leave such things undefined--to do so guarantees people will have different semantics for SKOS properties which will prevent interoperability. Daniel At 10:34 AM 12/17/2007, Sini, Margherita (KCEW) wrote: >Ok seems also reasonable to me to allow users to define transitivity.... > >-----Original Message----- >From: public-swd-wg-request@w3.org [mailto:public-swd-wg-request@w3.org] On >Behalf Of Ed Summers >Sent: 17 December 2007 19:25 >To: public-swd-wg@w3.org; public-esw-thes@w3.org >Subject: Re: [SKOS]: [ISSUE 44] BroaderNarrowerSemantics > > > >Thanks to all for this gentle schooling in how important the broader/narrower >transitivity issue is--especially for the Library of Congress Subject >Headings. I must admit, I had no idea that the broader/narrower semantics in >LCSH were this flawed, and recognized as such even when they were first >introduced in 1988 [1]. I suppose if the semantics around broader/narrower >were declared to be transitive the SKOS representation of LCSH would simply >be making explicit this implicit brokenness. Who knows it could be a tool for >gradually improving LCSH along the lines that Margherita mentions...but the >problems seem quite endemic. > >I'm curious though: what are the disadvantages of having SKOS say nothing >about broader/narrower transitivity, and letting users define these triples >if they are important for their application? This would allow looser KOS like >LCSH to be represented in roughly the same way as more rigorous KOS. >Developers who desired inferencing across broader/narrower could then add >triples stating that transitivity. Is the perception that this would >drastically reduce the interoperability of SKOS data, and if so how? > >//Ed > >[1] Dykstra, Mary. "LC Subject Headings Disguised as Thesaurus", Library >Journal, March 1, 1988, p 42-46.
Received on Monday, 17 December 2007 21:22:58 UTC