- From: Ross Singer <ross.singer@talis.com>
- Date: Fri, 4 Nov 2011 12:08:08 -0400
- To: Jakob Voss <jakob.voss@gbv.de>
- Cc: Tim Hodson <hodson.tim@gmail.com>, "<ian.davis@talis.com>" <ian.davis@talis.com>, "<public-lld@w3.org>" <public-lld@w3.org>
Jakob, What's the advantage of describing records? -Ross. On Wed, Nov 2, 2011 at 2:26 PM, Jakob Voss <jakob.voss@gbv.de> wrote: > Tim Hodson wrote: > >> If the BL uses a vocabulary that imposes restrictions on how the term >> is used those restrictions might mean that linking to outside sources >> becomes more difficult, as the scheme definition starts to imply >> things about the data that are not meant. >> >> Much better is to start simply with the easy things to describe, but >> model the domain in a way that is extensible. > > I fully agree. That's one reason why FRBR in RDF has not really started yet: > the current constraints make it difficult to reuse only parts of FRBR. In > particular we need general documents or works (as unspecified as bibo:Book, > and dct:BibliographicResource), single copies or holdings, and particular > editions. I drafted a lightweight ontology for > this purpose: > > https://gist.github.com/1331983 > >> So if some organisation interested in the works of Jane Austen >> decides to produce a description of all her works as linked data, >> then there is a good chance there will be a uri for a single work. >> That uri would almost certainly not be described using any >> recognisably frbrish vocabulary. > > I searched for Jane Austen's "Pride and Prejudice" in BL and found dozen of > URIs for it. Some are connected with owl:sameAs, but most > have a particular number of pages and other properties like ISBN. > For instance > > @prefix blt: <http://data.bl.uk/schema/bibliographic#> . > > <http://bnb.data.bl.uk/id/resource/009011483> > a bibo:Book, dct:BibliographicResource ; > dct:title "Pride and Prejudice" ; > dct:creator <http://bnb.data.bl.uk/id/person/AustenJane1775-1817> ; > dct:extend: "309p"@en . > > This could either be a physical book, or an edition, or both, but it would > be against common knowledge to say that it is the same as the , so they > unlikely represent the general work "Pride and Prejudice". For the latter we > already have some URIs: > > <http://www.librarything.com/work/2773690> a bibo:Book ; > owl:sameAs <http://dbpedia.org/resource/Pride_and_Prejudice> . > > Someone else may have an URI for its single physical copy: > > <http://example.org/mybooks/Pride_and_Prejudice> a bibo:Book ; > dct:extend: "309p"@en . # let's assume it's the same edition > > For many applications we do not need to distinguish the three, but > > <http://www.librarything.com/work/2773690> > owl:sameAs > <http://bnb.data.bl.uk/id/resource/009011483> , > <http://example.org/mybooks/Pride_and_Prejudice> . > > Is obviously wrong, isn't it? But how can you connect them? > How about (if BL URIs reference at least single editions): > > <http://bnb.data.bl.uk/id/resource/009011483> > sobr:editionOf > <http://www.librarything.com/work/2773690> ; > sobr:exemplar > <http://example.org/mybooks/Pride_and_Prejudice> . > > Cheers, > Jakob > > P.S: This is the core of Simplified Ontology for Bibliographic Resources > (SOBR): Three non-disjoint classes: > > sobr:Document a owl:Class ; owl:equivalentClass > schema:CreativeWork, bibo:Document, foaf:Document, frbr:Endevaour . > > obr:Edition a owl:Class ; rdf:subClassOf sobr:Document ; > owl:equivalentClass [ a owl:Class; > owl:unionOf (frbr:Expression frbr:Manifestation) > ] . > > sobr:Item a owl:Class ; rdf:subClassOf sobr:Document ; > owl:equivalentClass frbr:Item . > > -- > Jakob Voß <jakob.voss@gbv.de>, skype: nichtich > Verbundzentrale des GBV (VZG) / Common Library Network > Platz der Goettinger Sieben 1, 37073 Göttingen, Germany > +49 (0)551 39-10242, http://www.gbv.de > >
Received on Friday, 4 November 2011 16:08:47 UTC