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Re: Comment on RDF Model Theory

From: Ivan Herman <ivan@w3.org>
Date: Thu, 17 May 2007 13:51:45 +0200
Message-ID: <464C41D1.80806@w3.org>
To: Jeremy Carroll <jjc@hpl.hp.com>
CC: www-rdf-comments@w3.org, Pat Hayes <phayes@ihmc.us>, "Turner, David" <davidt@hp.com>, Ralph Swick <swick@w3.org>
Good point.

I will try to clarify this with Ian and Ralph. In the meantime, I have
copy pasted DanBri's remark (changing it to my name).

Ivan

Jeremy Carroll wrote:
> 
> Oh, one other thing, the errata page says near the top:
> "approved fixes"
> 
> Given that (to my knowledge) no one is currently chartered to approve
> any fixes, this could lead to the state where no errata are possible.
> Or perhaps, in the absence of a WG, it's part of your job to approve
> fixes (this part of the process is not clear to me), in which case the
> page in its current state is accurate.
> 
> I thought DanBri's comment
> This is a draft errata note, for review. ----danbri
> was appropriate and helpful, and a similar comment would more accurately
> reflect the status of the latest erratum.
> 
> Jeremy
> 
> Ivan Herman wrote:
>> Thanks Jeremy. I have added the error to:
>>
>> http://www.w3.org/2001/sw/RDFCore/errata.html
>>
>> Thanks again.
>>
>> Ivan
>>
>> Jeremy Carroll wrote:
>>> We suggest that the following text is in error:
>>> http://www.w3.org/TR/2004/REC-rdf-mt-20040210/#DTYPEINTERP
>>> [[
>>> If D is a datatype map, a D-interpretation of a vocabulary V is any
>>> rdfs-interpretation I of V union {aaa: < aaa, x > in D for some x }
>>> which satisfies the following extra conditions for every pair < aaa, x >
>>> in D:
>>> ]]
>>>
>>> we suggest that this text is better:
>>> [[
>>> If D is a datatype map, a D-interpretation of a vocabulary V is any
>>> rdfs-interpretation I of V union {aaa: < aaa, x > in D for some x }
>>> union { "sss"^^aaa : < aaa, x > in D for some x and "sss" in the lexical
>>> space of x }
>>> which satisfies the following extra conditions for every pair < aaa, x >
>>> in D:
>>> ]]
>>>
>>> This is motivated so that the D-entailments recorded in RDF Test Cases
>>> do in fact hold.
>>> http://www.w3.org/TR/2004/REC-rdf-testcases-20040210/#tc_cert
>>> e.g.
>>> tests
>>> http://www.w3.org/2000/10/rdf-tests/rdfcore/datatypes/Manifest.rdf#semantic-equivalence-within-type-1
>>>
>>>
>>> http://www.w3.org/2000/10/rdf-tests/rdfcore/datatypes/Manifest.rdf#semantic-equivalence-within-type-2
>>>
>>>
>>>
>>> involving files
>>> datatypes/test003a.nt
>>> and
>>> datatypes/test003b.nt
>>>
>>> With the currently worded RDF Semantics these entailments do not hold.
>>>
>>> Given that the spec is no longer in active development, we would be
>>> happy with a note in the erratum document to this effect, for formal
>>> consideration when this specification is next reviewed by a working
>>> group.
>>>
>>> Jeremy Carroll
>>> David Turner
>>>
>>>
>>
> 

-- 

Ivan Herman, W3C Semantic Web Activity Lead
URL: http://www.w3.org/People/Ivan/
PGP Key: http://www.cwi.nl/%7Eivan/AboutMe/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf

Received on Thursday, 17 May 2007 11:55:19 GMT

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