- From: Chris Bizer <chris@bizer.de>
- Date: Fri, 30 Apr 2004 13:43:06 +0200
- To: "Phil Dawes" <pdawes@users.sf.net>, <www-rdf-interest@w3.org>
Hi Phil, > > I'm getting to the point where I need to start including provenance > information in response to queries. I was wondering where the whole > standardisation process is wrt named graphs. > > - Does the trix proposal represent current thinking in this field? > The current status quo of the trix work is described in http://lists.w3.org/Archives/Public/www-archive/2004Apr/att-0081/PID-FAFPGYHS-1081860211.pdf Beside of TriX, there is also a N3-like syntax for Named Graphs called TriG, see: http://www.wiwiss.fu-berlin.de/suhl/bizer/TriG/ > - e.g. is the standardised model likely to be radically different > to its multiple closed-graphs approach? > > - Are there any triple stores that support the notion of named > graphs internally? (i.e through the api) > There are no implementations yet, but it is planned to implement Named Graphs as an extension to Jena 2 (Jeremy is to one to ask about details here). > > - Has there been any work on query languages supporting querying > across graphs? > > e.g. > select ?foo, ?bah > from <grapha>, <graphb>, <graphc> > where (...) > There are two query languages for Named Graphs RDFQ and TriQL http://www.wiwiss.fu-berlin.de/suhl/bizer/TriQL/ (Both not implemented yet) I guess Jeremy, Pat and Patrick might also answer later ... Chris > >
Received on Friday, 30 April 2004 07:38:59 UTC