Re: [GRDDL Primer] Some remarks

Thanks for the comments of 10 Oct...
http://lists.w3.org/Archives/Public/public-grddl-comments/2006OctDec/0005.html

Sorry for the delay in responding.

> 1) Source: Textual/non-XML vs. XML vs. Other
> I could even imagine a broader application, using GRDDL style to e.g.
> extract EXIF [EXIF-RDF] from images

It's not at all clear to me how that would work.

It seems to be beyond the scope of our charter...

"The Gleaning Resource Descriptions from Dialects of Languages (GRDDL) specification
aims to supplement the RDF/XML concrete syntax with a flexible mechanism for using
other XML syntaxes with the Resource Description Framework."
 -- http://www.w3.org/2006/07/grddl-charter.html#scope

If you're interested to change the charter, we could discuss that,
but to me it doesn't seem cost-effective, at this point. Perhaps the
idea is something to pursue after a first version of GRDDL is
finished? Or perhaps in parallel, but outside the GRDDL WG?

> 2) Exploiting existing Web Sources
> When playing around with GRDDL I often ask myself why not using existing
> sources/formats (Google, eBay, etc.) as
> a starting point. IMHO this might help in enabling GRDDL to take off
> faster; this is also related with (Web 2.0 stuff)
> as Tagging - we have a UC in our MMSEM XG group as well that tackles
> this issue.

We certainly hope that GRDDL will be applicable to a wide variety
of formats, and we intend to supply details about how to do that
in at least a few more cases.

It's not clear to me what you mean by using Google, eBay, etc.
Do you mean some of their formats? Could you give a pointer to
what you have in mind?

> 3) Reasoning
> Looking at the example in the Primer where SPARQL is used to demonstrate
> the usage of the extracted RDF there
> should also be some statement about reasoning (w.r.t. a schema/an
> ontology) in it. Or put in other words, 
> playing the advocatus diaboli: What is RDF worth without it? :)

Indeed, I hope we'll give some detailed examples about
"smushing" (i.e. equality reasoning using OWL), consistency
checking, perhaps even rules in future documents.

Prior to this Working Group, I did some OWL consistency
checking with GRDDL'd data, at least as a hypothetical example.
See http://www.w3.org/2002/12/cal/mash/slides#(45)


-- 
Dan Connolly, W3C http://www.w3.org/People/Connolly/
D3C2 887B 0F92 6005 C541  0875 0F91 96DE 6E52 C29E

Received on Tuesday, 24 October 2006 05:02:47 UTC