W3C home > Mailing lists > Public > w3c-rdfcore-wg@w3.org > April 2002

Re: Denotation of datatype values

From: Patrick Stickler <patrick.stickler@nokia.com>
Date: Tue, 09 Apr 2002 16:26:30 +0300
To: ext Graham Klyne <Graham.Klyne@mimesweeper.com>
CC: RDF Core <w3c-rdfcore-wg@w3.org>
Message-ID: <B8D8C6B6.12C67%patrick.stickler@nokia.com>
On 2002-04-09 16:18, "ext Graham Klyne" <Graham.Klyne@MIMEsweeper.com>
wrote:

> At 04:03 PM 4/9/02 +0300, Patrick Stickler wrote:
>> On 2002-04-09 13:39, "ext Graham Klyne" <Graham.Klyne@MIMEsweeper.com>
>> wrote:
>> 
>>> At 10:19 AM 4/9/02 +0300, Patrick Stickler wrote:
>>>> I.e. given only
>>>> 
>>>>    Jane ex:age "25" .
>>>> 
>>>> "25" alone does not denote the value twenty-five. But given
>>>> 
>>>>    ex:age rdfd:range xsd:integer .
>>>>    Jane ex:age "25" .
>>>> 
>>>> then "25" and the rdfd:range assertion *together* denote the
>>>> value twenty-five. Yet still, "25" alone does not denote the
>>>> value twenty-five. There is no single node in the graph which
>>>> denotes the value twenty-five. The value remains implicit in
>>>> the datatype interpretation.
>>> 
>>> According to my understanding of the datatyping proposal, there is
>>> _nothing_ in this graph that denotes the value 25.  All that is required is
>>> that there exists some value, not necessarily denoted by anything in the
>>> graph, that is related to the string "25" by the datatype
>>> "xsd:integer".  (And according to our shared understanding of xsd:integer,
>>> that "some value" is 25.)
>> 
>> I agree. I perhaps am using the word "denote" incorrectly here.
>> 
>> The question is whether we need/want there always to be
>> "something in the graph" to denote the value 25 when, based
>> on our shared understanding, we know we're talking about
>> the value 25.
> 
> OK.
> 
> Given:
> (a) The above graph is valid,
> (b) Nothing in the above graph denotes the value 25, and
> (c) Our shared understanding of xsd:integer lets us know that Janes ex:age
> property is related to the value 25
> ... then I'd say the answer to your question is no.

Thanks for your clarification Graham.

Anyone else have a different take on this? Does this represent
the general consensus of the WG? Does anyone else care ;-)

Patrick

--
               
Patrick Stickler              Phone: +358 50 483 9453
Senior Research Scientist     Fax:   +358 7180 35409
Nokia Research Center         Email: patrick.stickler@nokia.com
Received on Tuesday, 9 April 2002 09:23:50 EDT

This archive was generated by hypermail pre-2.1.9 : Wednesday, 3 September 2003 09:47:24 EDT