- From: Pat Hayes <phayes@ihmc.us>
- Date: Sun, 2 Oct 2011 22:03:47 -0500
- To: Andy Seaborne <andy.seaborne@epimorphics.com>
- Cc: public-rdf-wg@w3.org
On Oct 1, 2011, at 11:09 AM, Andy Seaborne wrote: > > > On 30/09/11 19:46, Sandro Hawke wrote: >> On Fri, 2011-09-30 at 15:04 +0100, Andy Seaborne wrote: >>> >>> On 30/09/11 13:59, Lee Feigenbaum wrote: >>>> On 9/30/2011 8:44 AM, Peter Frederick Patel-Schneider wrote: >>>>> From: Sandro Hawke<sandro@w3.org> >>>>> Subject: Re: complete graphs >>>>> Date: Fri, 30 Sep 2011 07:31:26 -0500 >>>>> >>>>> [...] >>>>> >>>>>> The restriction on the fourth column is that the fourth column is the >>>>>> web address of a place (a g-box) currently serving that triple. >>>>>> (That's the architecture I'm arguing for in this morning's post to >>>>>> public-rdf-prov [1].) >>>>> >>>>> You are going to build this into the formal meaning of RDF? >>>>> That's a non-starter for me. >>>> >>>> If I understand it correctly, I think it's a non-starter for me as well. >>>> This would prohibit non-HTTP URIs from being used to as the 4th element >>>> in a quad (i.e. as the identifier of a named graph)? >>>> >>>> Lee >>> >>> I understood Sandro's remark coming out of the discussion about >>> provenance on the web and so I took generalising to any URI scheme for >>> other situations as read. >> >> Right. More formally, I'd say the fourth column is the identifier (IRI >> or BNode) of an Information Resource which MAY provide representations. >> If it does provide representations, it SHOULD provide an RDF >> representation (a g-text). If you want to use a non-dereferenceable >> IRI scheme like uuid or tag, that's not good Linked Data but it's fine >> RDF. Informally, the fourth column entry denotes a g-box, but I'm not >> convinced g-boxes should be formalized. > > BNode? Such a bNode is outside any graph so how does its semantics work? (I'm not saying it does not work - but I don't see how it would.) OK, I am saying it does not work. At the very least it would have to be a bnode identifier, not a bnode. Pat ----------------------------------------------------------- IHMC (850)434 8903 or (650)494 3973 40 South Alcaniz St. (850)202 4416 office Pensacola (850)202 4440 fax FL 32502 (850)291 0667 mobile phayesAT-SIGNihmc.us http://www.ihmc.us/users/phayes
Received on Monday, 3 October 2011 03:04:24 UTC