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Re: three kinds of dataset

From: Pat Hayes <phayes@ihmc.us>
Date: Tue, 6 Mar 2012 13:25:24 -0600
Cc: "Peter F. Patel-Schneider" <pfpschneider@gmail.com>, public-rdf-wg@w3.org
Message-Id: <6E5DFA42-3A7D-436E-AB7A-627D6780C6DA@ihmc.us>
To: Antoine Zimmermann <antoine.zimmermann@emse.fr>

On Mar 6, 2012, at 12:10 PM, Antoine Zimmermann wrote:

> Why not indeed?  This was my original idea, modulo a little improper formulation (you can see the previous version in the wiki) but 1) Pat was very much against this formulation, and 2) the current formulation allows a dataset-interpretation to assign a "local" interpretation to a potentially infinite set of terms. This is particularly useful for reasoning with annotated triples (UC 6.2 in http://www.w3.org/2011/rdf-wg/wiki/TF-Graphs-UC#.28B_priority.29_Reasoning_over_annotations).

And, that way of saying it is more complicated than this way. 

Pat

> 
> 
> Le 06/03/2012 18:52, Peter F. Patel-Schneider a écrit :
>> From: Antoine Zimmermann<antoine.zimmermann@emse.fr>
>> Subject: Re: three kinds of dataset
>>> 
>>> http://www.w3.org/2011/rdf-wg/wiki/TF-Graphs/RDF-Datasets-Proposal#Semantics
>>> 
>>> What precedes this in the wiki is Richard's proposal, which concerns the
>>> syntax. Richard does not necessarily endorse the semantics.
>>> 
>>> Le 06/03/2012 17:49, Peter F. Patel-Schneider a écrit :
>>>> By the way, where is Antoine's proposal?
>>>> 
>>>> peter
>> 
>> Why not just say that an RDF/RDFS/... dataset interpretation of
>> 	D = (G, {<n1,G1>, ...,<nk,Gk>})
>> is a structure
>> 	I = (I, {<m1,I1>, ...,<mh,Ih>})
>> where I is an RDF/RDFS/... interpretation of G
>> and for each 1<=i<=k there is a j, 1<=j<=h such that mj=ni
>> and Ij is an RDF/RDFS/... interpretation of Gi
>> (could also require ni distinct and h=k)
>> 
>> Then	D = (G, {<n1,G1>, ...,<nk,Gk>})
>> entails D' = (G', {<n'1,G'1>, ...,<n'k',G'k'>})
>> just when every RDF/RDFS/... datatset interpretation of D
>> is also an RDF/RDFS/... datatset interpretation of G'
>> 
>> peter
> 
> 
> -- 
> Antoine Zimmermann
> ISCOD / LSTI - Institut Henri Fayol
> École Nationale Supérieure des Mines de Saint-Étienne
> 158 cours Fauriel
> 42023 Saint-Étienne Cedex 2
> France
> Tél:+33(0)4 77 42 83 36
> Fax:+33(0)4 77 42 66 66
> http://zimmer.aprilfoolsreview.com/
> 
> 

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Received on Tuesday, 6 March 2012 19:25:59 GMT

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