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Re: Would RDFa support Named Graph ?

From: landong zuo <landong.zuo@googlemail.com>
Date: Mon, 28 Nov 2011 11:19:21 +0000
Message-ID: <CACNn1bpM2o_ap_Rr=-R_76fMrOxnJwj7d59usWjDE2NacNLARA@mail.gmail.com>
To: Ivan Herman <ivan@w3.org>
Cc: public-rdfa-wg@w3.org
Dear Ivan,

Many thanks to your response. I am very pleased to know that Named Graph
will be in the agenda of future RDFa discussion.

I would be very interested to participate in this if it is possible.

Regards,

Landong



On Fri, Nov 25, 2011 at 1:24 PM, Ivan Herman <ivan@w3.org> wrote:

> Dear, Landong,
>
> RDFa does not have any syntax for named graphs at this time. For the time
> being the issue of named graph (semantics, possible syntaxes, etc) is still
> being discussed in the RDF WG and it would be premature to add this to
> RDFa. This is clearly the topic of future discussions for a next release of
> RDFa once the RDF concepts have been clarified.
>
> Sincerely
>
> Ivan
>
>
>
> On Nov 24, 2011, at 18:30 , landong zuo wrote:
>
> > Hi,
> >
> > I have been looking around for a "recommended" solution to render Named
> Graph in XHTML+RDFa syntax but with no luck.
> > I am not sure if this is the right place to raise this question. Or, if
> this issue was already concluded previously in RDFa Work Group. I am sorry
> if it was.
> >
> > My use case originates from the Trust and Provenance of Semantic Data
> Publishing. In such a case, we need to publish the RDF triples alongside
> with its metadata, e.g. provenance and digital signature.
> > This can be done in TriG syntax by identifying the named graph and
> specifying the relationship between graphs. However, if we want to render
> the triples in XHTML+RDFa page, there is not a straight way to represent
> the named graphs in RDFa syntax.
> >
> > I've caught up with previous discussion between Mark Birbeck and Michael
> Hausenblas at the link below.
> > http://lists.w3.org/Archives/Public/public-swd-wg/2007Dec/0114.html
> >
> > As Mark made his point that RDFa is supposed to carry all triples from
> single RDF graph and there is not need to put Named Graph in RDFa syntax. I
> am wondering if this assumption has somehow restricted the expressivity of
> RDFa, i.e. metadata with strong coherent relationship can not be published
> within the same page of the document?
> >
> > I am looking forward to your comment and suggestion. Further discussion
> and information is warmly welcomed.
> >
> > Regards,
> >
> >
> >
> >
> > Landong Zuo
> >
> > Semantic Web Developer
> >
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> >
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> >
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> >
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> >
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> >
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> >
> >
>
>
> ----
> Ivan Herman, W3C Semantic Web Activity Lead
> Home: http://www.w3.org/People/Ivan/
> mobile: +31-641044153
> FOAF: http://www.ivan-herman.net/foaf.rdf
>
>
>
>
>
>
Received on Monday, 28 November 2011 11:19:53 GMT

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