Re: SPARLQ endpoint discovery
Richard Cyganiak <richard <at> cyganiak.de>
2011-04-01 08:06:33 GMT
On 31 Mar 2011, at 19:55, William Waites wrote:
> ] I'm looking for some references about SPARQL endpoint discovery. I know
> ] that it is common to have the SPARQL endpoint available at /sparql.
> ] However, I wonder if there is something published about the discovery of
> ] these endpoints (e.g. how sindicebot works, or discovery of endpoints
> ] used in Web forms).
> The void vocabulary lets you speficy the sparql endpoint
> containing a particular dataset.
To be more precise:
This states that on domain www.example.com, the URI
can be expected to be a redirect to an RDF document that describes any RDF datasets hosted on that domain,
expressed in the VoID vocabulary. Looking for void:sparqlEndpoint triples in such a VoID description
would yield the endpoint URL.
> A related question is SPARQL endpoint fingerprinting... Which
> is not necessarily straightforward as often people put them
> behind HTTP reverse proxies that stomp on identifiable
> headers... In principle it would be interesting to do a
> survey to see the relative prevalence of different SPARQL
> William Waites <mailto:ww <at> styx.org>
> http://river.styx.org/ww/ <sip:ww <at> styx.org>
> F4B3 39BF E775 CF42 0BAB 3DF0 BE40 A6DF B06F FD45