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RE: Cutting the Patrician datatype knot

From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
Date: Sat, 24 Nov 2001 09:15:32 -0500
To: Patrick.Stickler@nokia.com
Cc: www-rdf-interest@w3.org, joint-committee@daml.org
Message-Id: <20011124091532D.pfps@research.bell-labs.com>
From: Patrick.Stickler@nokia.com
Subject: RE: Cutting the Patrician datatype knot
Date: Fri, 23 Nov 2001 20:57:49 +0200

[...]
> 
> If the data type does not define a lexical space, then
> no mechanism is going to work. Either there's a defined
> mapping from lexical form to value or there isn't. It
> is therefore enough to identify that pairing of lexical
> form (literal) to data type (URI) in order to denote the
> value.

The problem is not that the datatypes don't meet your conditions above, the
problem occurs when two datatypes share some data values, but disagree on
how to to the lexical-to-value mapping.  If the typing comes from RDF(S),
then it may be the case that a literal gets these two datatypes.  Then the
value for that literal is ambiguous.

[...]

> Cheers,
> 
> Patrick

peter
Received on Saturday, 24 November 2001 09:16:31 GMT

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