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Re: agenda 27 Feb telecon

From: Peter Patel-Schneider <pfpschneider@gmail.com>
Date: Tue, 26 Feb 2013 11:33:05 -0800
Message-ID: <CAMpDgVwtLgfCTWaH7rbuAW+09dO6VzbCiV1pXC2M_dXnRJNpUA@mail.gmail.com>
To: Guus Schreiber <guus.schreiber@vu.nl>
Cc: RDF WG <public-rdf-wg@w3.org>
Fix 4:
4/ Revert LV to its previous behaviour.

peter

On Tue, Feb 26, 2013 at 11:30 AM, Peter Patel-Schneider <
pfpschneider@gmail.com> wrote:

> Things to think about wrt the semantics:
>
> 1/ Ill-typed literals no longer denote.
>    Decided by a WG vote (pointer?), so OK, but this is the main change, so
> it should be well documented.
> 2/ LV is the union of all recognized datatype value spaces.
>    No visible changes in RDF/S/D, I think, but has visibility in OWL,
> e.g., an
>    instance of rdfs:Literal would have to belong to one of the recognized
>    datatypes.  This would be non-monotonic with respect to adding more
>    datatypes.
> 3/ Status of simple interpretations where, e.g.,
>    IL("aaa"^^xsd:string) = "sss"
>    These are possible, but then break down in a strange way when looking at
>    the semantic conditions for ground graphs.  They are not
>    {xsd:string}-interpretations.
>
> Proposed fixes:
>
> 1/ Move built-in literals out of simple semantic conditions for ground
> graphs.  Does anyone use simple semantics?
> 2/ "Fix" datatypes, allowing other datatypes that have language tags (but
> no RDF syntax would permit them).  This makes rdf:langString a regular
> datatype.   This would allow, for example, internationalized numerics,
> i.e., "123,1"@fr^^xsd:decimal.  (Well maybe not using xsd:decimal, but you
> get the idea.)  Is this too radical for this late in the game?  However,
> who would notice if the change is only made in Semantics, without a
> corresponding change in Concepts?
> 3/ Make RDF interpretations be {rdf:XMLLiteral, rdf:HTML, rdf:langString,
> xsd:string}-interpretations (as they are now in Semantics, but I do seem to
> remember something about rdf:XMLLiteral not being part of RDF any more).
>
> peter
>
>
>
>
>
>> On 26-02-13 16:46, Guus Schreiber wrote:
>>
>>> See:
>>>
>>>    http://www.w3.org/2011/rdf-wg/**wiki/Meetings:Telecon2013.02.**27<http://www.w3.org/2011/rdf-wg/wiki/Meetings:Telecon2013.02.27>
>>>
>>> Main agenda items:
>>> - admin Turtle comments & tests (short)
>>> - road to FPWD for Semantics
>>> - road to LC for Concepts
>>> - reviewers for JSON-LD draft
>>>
>>> Guus
>>>
>>>
>>
>
Received on Tuesday, 26 February 2013 19:33:32 GMT

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