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Re: Trust, Context, Justification and Quintuples

From: Thomas B. Passin <tpassin@comcast.net>
Date: Thu, 18 Dec 2003 09:16:40 -0500
Message-ID: <3FE1B6C8.1020209@comcast.net>
To: www-rdf-interest@w3.org

Chris Bizer wrote:

> 
> we did some brainstorming about trust, context and the justification of
> query results and ended up with:
> - an extended RDF data model based on quintuples (a triple plus two
> additional elements: context and statement ID).

It seems to me that it would be possible to make statements about a 
statement by creating a predicate that is an instance of a predicate 
class.  That instance would be using in only one statement.  Therefore, 
any statement about that predicate could be taken to be a statement 
about the triple it is part of.

For example, instead of

{#Bob, #friendOf, #Mary}

We could have

{#friendOf_1, rdfs:type, #friendOf}
{#Bob, #friendOf_1, #Mary}
{#friendOf_1, #veracityAssessment, #Dubious}

This would work as long as the instance of the predicate were used in 
only one statement.

Although it is a bit odd, it should work within the existing framework 
of RDF.  Does anyone see any fundamental problem with creating 
predicates as instance resources in this way?

The same approach would allow one statement to be treated as a context 
for another.

Cheers,

Tom P
Received on Thursday, 18 December 2003 09:15:11 GMT

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