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Re: Question on syncing entailment regimes conditions between Query and Entailment docs

From: Birte Glimm <birte.glimm@uni-ulm.de>
Date: Tue, 13 Dec 2011 15:32:05 +0100
Message-ID: <CABt65OePJ=-veHbq-uCQD8D2s1xHCg7=k8QHU8q1QuE66ohEpA@mail.gmail.com>
To: Axel Polleres <axel.polleres@deri.org>
Cc: SPARQL Working Group <public-rdf-dawg@w3.org>
Axel,

I agree with your observation that E-consistency is meant and hat we
should clarify this and sync query and ent. regimes.

Birte

On 12 December 2011 00:31, Axel Polleres <axel.polleres@deri.org> wrote:
> I have a question on the first condition in http://www.w3.org/TR/sparql11-query/#sparqlBGPExtend
>
> "For any consistent active graph AG, the entailment regime E uniquely specifies a scoping graph SG that is E-equivalent to AG."
>
> shouldn't this - to be precise - rather talk about "E-consistency"? I.e.:
>
> "For any E-consistent active graph AG, the entailment regime E uniquely specifies a scoping graph SG that is E-equivalent to AG."
>
> (I'll have a similar comment in my Entailment review, I am working on)
>
> Also, note that in the Entailment Regimes document it says:
>
> "The scoping graph, SG, corresponding to any consistent active graph AG is uniquely specified up to RDF graph equivalence and is E-equivalent to AG."
>
> where essentially "up to RDF graph equivalence" has been added (IIRC we had some discussions around this). I suppose we should bring bot the Entailment and Query doc in sync wrt. the definition of these conditions.
>
> So, overall, I think this condition should read, in both documents:
>
> "The scoping graph, SG, corresponding to any E-consistent active graph AG is uniquely specified up to <a href="http://www.w3.org/TR/rdf-concepts/#section-graph-equality">RDF graph equivalence</a> and is E-equivalent to AG."
>
> Note: I also suggest adding a link to RDF Graph equivalence, in order to clarify that this means simple equivalence.
>
> cheers,
> Axel
>
>
> --
> Dr. Axel Polleres
> url: http://www.polleres.net/  twitter: AxelPolleres
>
>
>
>



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Received on Tuesday, 13 December 2011 14:35:10 GMT

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