- From: Graham Klyne <gk-lists@dial.pipex.com>
- Date: Sun, 03 Dec 2000 09:07:29 +0000
- To: guha@guha.com
- Cc: Pierre-Antoine CHAMPIN <champin@bat710.univ-lyon1.fr>, pat hayes <phayes@ai.uwf.edu>, www-rdf-logic@w3.org
I (think I) appreciate what you're saying, but it seems to me that there is an important distinction. When I look at the graph-syntax, URI-references figure very strongly. When I look at the formal model in M&S, as far as I can tell there are only resources. #g -- At 09:59 AM 12/1/00 -0800, Guha wrote: >I think this confusion between the graph being the semantic >thing vs being a higher level syntax is an artifact of the >extremely limited expressiveness of RDF today. > >Without connectives or quantifiers (and no, reification >does give us a way out of this), there is a certain >isomorphism between the triple syntax and the semantic model >(the graph) which is very confusing. > >At some point, when we bite the bullet and introduce >connectives and variables as language constructs into >RDF, I think the difference between the syntax and >semantics will become clearer. > >guha > >Pierre-Antoine CHAMPIN wrote: > > > Guha wrote: > > > I have a simple (albeit potentially controversial) answer --- it is the > > > range of the interpretation of RDF expressions. > > > > Controversial, indeed ! I'm not sure I dislike it, although :) > > > > But strictly speaking, if it is true, > > then RDF describes Nodes and Arcs, not Resources... > > > > So, as I previously posed it, > > I think the grapoh is the *interpretation* of the XML *syntax*, > > but it is also a "higher level" *syntax*, whose interpretation is in > the world of resources (or entities, or both, I'm not sure)... > > > > Pierre-Antoine > > > > -- > > Sometimes I think the surest sign that intelligent life exists > elsewhere in the > > universe is that none of it has tried to contact us. > > (Bill Watterson -- Calvin & Hobbes) ------------------------------------------------------------ Graham Klyne Content Technologies Ltd. Strategic Research <http://www.mimesweeper.com> <Graham.Klyne@mimesweeper.com> ------------------------------------------------------------
Received on Sunday, 3 December 2000 12:14:49 UTC