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Re: more about dereference (notes from MIT post F2F2-day-1)

From: Dan Brickley <danbri2011@danbri.org>
Date: Thu, 13 Oct 2011 20:51:59 +0000
Cc: "Pat Hayes , public-rdf-wg" <phayes@ihmc.us>
Message-Id: <A0CA944F-B80A-42FD-AB38-447706EA525D@danbri.org>
To: Sandro Hawke <sandro@w3.org>
On 13 Oct 2011, at 13:37, Sandro Hawke <sandro@w3.org> wrote:

> On Wed, 2011-10-12 at 22:58 -0500, Pat Hayes wrote:
>> Actually, I want to subtly change (1).
>> 
>> On Oct 12, 2011, at 4:04 PM, Sandro Hawke wrote:
>> 
>>> Some of us kept talking for a few more hours.    Everyone was
>>> more-or-less cool with these observations about dereference:
>>> 
>>> 1. If a system successfully dereferences URL "L" and obtains a
>>> representation of an RDF graph, then <L> is a GraphContainer.
>> 
>> That seems like http-range-14 wearing a Hawaiian shirt. 
>> 
>>> That
>>> is, "L" denotes a GraphContainer.  Logically, GraphContainer is
>>> disjoint from foaf:Person (I think!!) so a document that includes "<>
>>> a foaf:Person" is (by this proposal) logically inconsistent with it
>>> being served on the Web.
>> 
>> No, its not *logically* inconsistent. What it implies is that there is something in the intersection of foaf:Person and GraphContainer. But these being disjoint has to be part of an ontology of GraphContainers rather than a *logical* axiom, I suggest. That is, we don't build this into the very semantics. 
> 
> Agreed.  I would leave this up to, for instance, the people providing an
> ontology for foaf:Person to say it's disjoint from GraphContainer.
> 

Maybe :) Can an ebook be a graphcontainer? 
Or a print of it? Printed on a person? Can an api like mturk that has human as the 'backend'? A gopher server? A fax system? 

What else could never-ever be a graphcontainer?

Dan

>    -- Sandro
> 
>> Pat
>> 
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>> 
>> 
>> 
>> 
>> 
> 
> 
> 



Received on Friday, 14 October 2011 07:40:45 GMT

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