Re: Discovering a query endpoint associated with a given Linked Data resource

Well, you might try to look in this folder location:
.well-known/void
And possibly find a "void:sparqlEndpoint".

But this would be too good to be true.

Regards,
Víctor

El 26/08/2015 10:45, Nandana Mihindukulasooriya escribió:
> Hi,
>
> Is there a standard or widely used way of discovering a query endpoint 
> (SPARQL/LDF) associated with a given Linked Data resource?
>
> I know that a client can use the "follow your nose" and related link 
> traversal approaches such as [1], but if I wonder if it is possible to 
> have a hybrid approach in which the dereferenceable Linked Data 
> resources that optionally advertise query endpoint(s) in a standard 
> way so that the clients can perform queries on related data.
>
> To clarify the use case a bit, when a client dereferences a resource 
> URI it gets a set of triples (an RDF graph) [2].  In some cases, it 
> might be possible that the returned graph could be a subgraph of a 
> named graph / default graph of an RDF dataset. The client wants to 
> discover if a query endpoint that exposes the relevant dataset, if one 
> is available.
>
> For example, something like the following using the "search" link 
> relation [3].
>
> ------
> HEAD /resource/Sri_Lanka
> Host: http://dbpedia.org
> ------
> 200 OK
> Link: <http://dbpedia.org/sparql>; rel="search"; type="sparql", 
> <http://fragments.dbpedia.org/2014/en#dataset>; rel="search"; type="ldf"
> ... other headers ...
> ------
>
> Best Regards,
> Nandana
>
> [1] 
> http://swsa.semanticweb.org/sites/g/files/g524521/f/201507/DissertationOlafHartig_0.pdf
> [2] 
> http://www.w3.org/TR/2014/REC-rdf11-concepts-20140225/#section-rdf-graph
> [3] http://www.iana.org/assignments/link-relations/link-relations.xhtml


-- 
Víctor Rodríguez-Doncel
D3205 - Ontology Engineering Group (OEG)
Departamento de Inteligencia Artificial
Facultad de Informática
Universidad Politécnica de Madrid

Campus de Montegancedo s/n
Boadilla del Monte-28660 Madrid, Spain
Tel. (+34) 91336 3672
Skype: vroddon3


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Received on Wednesday, 26 August 2015 08:57:39 UTC