- From: Pierre-Antoine Champin <pierre-antoine.champin@liris.cnrs.fr>
- Date: Wed, 19 Oct 2011 10:17:39 +0200
- To: Jeremy Carroll <jeremy@topquadrant.com>
- CC: RDF Working Group WG <public-rdf-wg@w3.org>
Is that just me, or does this use case relate to the one from the BBC
[1] ? More precisely, aren't the notion of subdataset and the notion of
slice somewhat aligned?
pa
[1]
http://www.w3.org/2011/rdf-wg/wiki/TF-Graphs-UC#.28A_PRIORITY.29_Slicing_datasets_according_to_multiple_dimensions
On 10/14/2011 04:06 AM, Jeremy Carroll wrote:
>
> TopQuadrant code routinely queries datasets that are provided by other
> vendors; hence we have an interest in the dataset abstractions that are
> provided in the standard.
>
> A particular area of interest for TopQuadrant is that we often want to
> have a simple dataset algebra, where given a dataset with some set of
> graph names N = { n1, n2, .... nk }, we may want to run a query against
> a subdatset M of N, consisting of only some of the ni, e.g. M = { n3, n4 }.
> Given such a capability then, at least over the powerset of N, we can
> provide the usual set theoretic operators of union and intersection to
> implement a change of application focus by considering a different
> subdataset.
>
> I am wondering what is the best way to add this issue to the mix here. I
> could write up a use case: would that be helpful?
>
> Jeremy
>
>
>
Received on Wednesday, 19 October 2011 08:18:22 UTC