- From: Graham Klyne <GK@Dial.pipex.com>
- Date: Mon, 01 Jan 2001 16:02:03 +0000
- To: Seth Russell <seth@robustai.net>
- Cc: RDF-IG <www-rdf-interest@w3.org>
Seth, If the context can be expressed in the RDF graph-syntax (which I is the approach I have tried to follow) then I see no need to create extensions to the RDF serialization. #g -- At 09:31 AM 12/15/00 -0800, Seth Russell wrote: >Applications of the semantic web are going to be aggregating >different sources of RDF. Categorizing information (time, >geography, trust, topic etc. ) will also be collected in the >process of reading RDF statements. Our applications will >need some method to easily express this type of information >*in RDF*. I suppose that there are methods to do this >using bag containers, but they are cumbersome. However, RDF >has already defined the perfect container for our purpose >... the RDF element itself. So I propose the following >extension to RDF XML serialization for contexts (graphs, >models, microtheoroies, sources, settings, frameworks, >situations .......): > ><?xml version="1.0"?> > <RDF > xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" > xmlns:s="http://description.org/schema/" > context="contextUri1" > context="contextUri2" > > > <Description about="http://www.w3.org/Home/Lassila"> > <s:Creator>Ora Lassila</s:Creator> > </Description> > </RDF> > >This would generate the following triples: > >[contextUri1] ---context--->[id1, >http://www.w3.org/Home/Lassila , s:Creator, "Ora Lassila"] >[contextUri2] ---context--->[id1, >http://www.w3.org/Home/Lassila , s:Creator, "Ora Lassila"] > >Where [id1, http://www.w3.org/Home/Lassila , s:Creator, "Ora >Lassila"] is just a shorthand notation for the reification >quad: > >[ id1, rdf:type, statement] >[ id1, rdf:subject, http://www.w3.org/Home/Lassila] >[ id1, rdf:predicate, s:Creator] >[ id1, rdf:object, "Ora Lassila"] > >Seth Russell ------------ Graham Klyne (GK@ACM.ORG)
Received on Monday, 1 January 2001 14:00:48 UTC