- From: Brian McBride <bwm@hplb.hpl.hp.com>
- Date: Sun, 17 Jun 2001 10:52:54 +0100
- To: w3c-rdfcore-wg@w3.org
Jan, There is an issue: http://www.w3.org/2000/03/rdf-tracking/#rdfms-identity-anon-resources Could we link the points you have raised in with that issue? Brian > Re: Model-specific identity for anon resources, and its representation: A new issue? > > From: Jan Grant (Jan.Grant@bristol.ac.uk) > Date: Thu, Jun 14 2001 > > *Next message: Brian McBride: "try 2 - test cases for #rdf-containers-syntax-ambiguity, #rdf-containers-syntax-vs-schema" > > * Previous message: Brian McBride: "test cases for #rdf-containerss-syntax-ambiguity, #rdf-containers-syntax-vs-schema" > * In reply to: jos.deroo.jd@belgium.agfa.com: "Re: Model-specific identity for anon resources, and its representation: A new issue?" > * Next in thread: jos.deroo.jd@belgium.agfa.com: "Re: Model-specific identity for anon resources, and its representation: A new issue?" > * Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] > * Other mail archives: [this mailing list] [other W3C mailing lists] > * Mail actions: [ respond to this message ] [ mail a new topic ] > > -------------------------------------------------------------------------------- > > Date: Thu, 14 Jun 2001 11:41:40 +0100 (BST) > From: Jan Grant <Jan.Grant@bristol.ac.uk> > To: "jos.deroo.jd" <jos.deroo.jd@belgium.agfa.com> > cc: w3c-rdfcore-wg <w3c-rdfcore-wg@w3.org> > Message-ID: <Pine.GSO.4.31.0106141136280.27373-100000@mail.ilrt.bris.ac.uk> > Subject: Re: Model-specific identity for anon resources, and its representation: A new issue? > > On Thu, 14 Jun 2001 jos.deroo.jd@belgium.agfa.com wrote: > > > We can imagine that anounymous terms are identified 'by their content' > > e.g. see "more N-triples (Was RDF Statements as floating Cons Cells)" > > http://lists.w3.org/Archives/Public/www-rdf-logic/2001Jun/0191.html > > elaborating on that > > [[[ > > If an arc points to an anonymous term, then it > > is there 'by value' so to speak (not 'by reference'). > > Of course one could point to constant terms > > and universally quantified terms used in those > > subgraphs, but they are 'leafs' or at the 'subgraph > > boundaries' so to speak. > > ]]] > > This is not my intuition on this. I'm thinking purely of a graph-based > RDF model (for the nontechnical meaning of "model"). It has nodes; some > of those are labelled with URIs, some are not. The latter are > "anonymous resources". Two distinct anonymous nodes may be in > equivalent relationships with other nodes in the graph; this does not > make them graph-theoretically equal. > > Summary: an anonymous node has its own "model-specific identity". Two > anonymous nodes in an RDF graph may have "the same content" but still be > distinct. > > > Let's start with > > _:a1 <http://random.ioctl.org/#p1> _:a2 . > > _:a2 <http://random.ioctl.org/#p2> _:a1 . > > > > If you point to _:a1 via e.g. > > <http://random.ioctl.org/#s3> <http://random.ioctl.org/#p3> _:a1 . > > you can see how Euler copes with such content > > [much Euler output snipped] > > > So I think both cases are representable in RDF, no? > > Forgive me, but if that is the case (and without adding additional > triples), could you show me what the serialised RDF for each case looks > like? > > jan (a bit slow on the uptake) > > -- > jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ > Tel +44(0)117 9287163 Fax +44 (0)117 9287112 RFC822 jan.grant@bris.ac.uk > Semantic rules, OK? > > -------------------------------------------------------------------------------- > > * Next message: Brian McBride: "try 2 - test cases for #rdf-containers-syntax-ambiguity, #rdf-containers-syntax-vs-schema" > * Previous message: Brian McBride: "test cases for #rdf-containerss-syntax-ambiguity, #rdf-containers-syntax-vs-schema" > * In reply to: jos.deroo.jd@belgium.agfa.com: "Re: Model-specific identity for anon resources, and its representation: A new issue?" > * Next in thread: jos.deroo.jd@belgium.agfa.com: "Re: Model-specific identity for anon resources, and its representation: A new issue?" > * Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] > * Other mail archives: [this mailing list] [other W3C mailing lists] > * Mail actions: [ respond to this message ] [ mail a new topic ]
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