Re: finding a triple on the web

Brent Shambaugh <brent.shambaugh@gmail.com> wrote:
> Dear all,
>
> I am trying to figure out how it is possible to query n possible sparql
> endpoints for a particular triple pattern.
>
> I seem to think that a federated query provided by sparql only allows
> explicitly mentioned sparql endpoints.
>
> http://www.w3.org/TR/sparql11-federated-query/
>
> It appears that powder allows filtering based on different parts of
> the URI:
>
> http://www.w3.org/TR/powder-grouping/
>
> Would I need some sort of web index that catalogues known triples that
> I can then use a reference point for sparql querying?

I'm not a linked data expert, but if you are looking to query for RDF triples from the "wild and woolly internet", I'd say you'd need a semantic web index such as http://sindice.com/?.  Alternatively, you can query RDF data sets that are published by organizations, such as http://dbpedia.org<http://dbpedia.org/About>. (See [1] for more of these.)

[1] http://www.w3.org/wiki/DataSetRDFDumps?

 -Mark

>
> Sorry about my lack of knowledge.
>
> -Brent Shambaugh
>
>

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