- From: Seth Russell <seth@robustai.net>
- Date: Tue, 21 Nov 2000 17:47:58 -0800
- To: Sergey Melnik <melnik@db.stanford.edu>
- CC: Jonathan Borden <jborden@mediaone.net>, RDF Interest Group <www-rdf-interest@w3.org>
Sergey Melnik wrote: > Being able to talk about statements is a central concept of RDF and I > think it should be anchored in the RDF model more intrinsically than it > is done currently. I don't see a need to bootstrap reification using 4 > special RDF statements. I'd rather have it built-in. So would I. Strangely enough there is a simple way to do it; and it would require a minimum change in a RDF model. We could treat statement triples exactly the same way we treat literals, allowing them to be objects but not subjects. The change in [M&S section 5] would be as follows: Where pred is a property (member of Properties), sub is a resource (member of Resources), and obj is either a resource or a literal (member of Literals) or a statement. The graphic model would would allow us to terminate an arc on another arc - see [Oedipus]. All the implementors would need to do is add an internal id to each statement, which most of us have done already. This will also solve the 2 troubles mentioned in [ReificationTroubles]. [Oedipus] http://robustai.net/ai/Oedipus.htm [M&S section 5] http://www.w3.org/TR/REC-rdf-syntax/#model [ReificationTroubles] http://lists.w3.org/Archives/Public/www-rdf-interest/2000Nov/0316.html Seth Russell
Received on Tuesday, 21 November 2000 20:59:38 UTC