- From: Patrick Stickler <patrick.stickler@nokia.com>
- Date: Fri, 28 Jun 2002 12:06:55 +0300
- To: Pat Hayes <phayes@ai.uwf.edu>, Jeremy Carroll <jjc@hplb.hpl.hp.com>
- CC: RDF Core <w3c-rdfcore-wg@w3.org>
On 2002-06-28 9:14, "ext pat hayes" <phayes@ai.uwf.edu> wrote: > >> At the f2f one of the postponed issues that I wished to advocate >> reopening was: >> >> http://www.w3.org/2000/03/rdf-tracking/#rdfms-syntax-incomplete >> >> In particular, given the amount of change we have made I think a >> small change to >> rectify the bnode serialization problem should be considered. >> >> However we were out of time, and so I have decided to raise this by e-mail. >> >> This is primarily motivated for me by Jena development. >> Within Jena we have repeated user requirement to enable round-tripping. >> >> e.g. one of our summer students yesterday said words like: "we use N-triple >> as >> our transport becuase bNodes are important." >> >> Since we are not proposing N-triple as a standard, we do have some >> obligation to >> make RDF/XML useable. >> >> I propose that we should modify the RDF/XML syntax to permit bNode labels >> "_:foo" wherever we currently permit URI refs. > > Would that be extendable to allow nodeIDs on literal nodes, also, to > handle untidy literals? Seems so to me. One could simply view untidy literal nodes as analogous to bnodes with literal labels. Each denotes a (potentially) different resource and the literal label provides a contextual name for that resource, but since the literal label does not have globally constent meaning (as does a URIref) the denotation is underspecified without that context. As with a bnode, you know it denotes "something", but you don't necessarily know exactly what that is, insofar as some global name (URIref) is concerned. So, _:foo is a bnode and _:bar"1234" is a literal node. Both are "untidy" and the nodeID simply disappears in the graph representation, leaving only the literal string in the case of the literal node. _:foo -> "", _:bar"1234" -> "1234". Eh? Patrick -- Patrick Stickler Phone: +358 50 483 9453 Senior Research Scientist Fax: +358 7180 35409 Nokia Research Center Email: patrick.stickler@nokia.com
Received on Friday, 28 June 2002 05:02:24 UTC