- From: Sarven Capadisli <info@csarven.ca>
- Date: Thu, 22 Jan 2015 15:26:33 +0100
- To: Juan Sequeda <juanfederico@gmail.com>, Semantic Web <semantic-web@w3.org>, public-lod public <public-lod@w3.org>
On 2015-01-22 15:09, Juan Sequeda wrote: > Assume you are given a URL for a SPARQL endpoint. You have no idea what > data is being exposed. > > What do you do to explore that endpoint? What queries do you write? > > Juan Sequeda > +1-575-SEQ-UEDA > www.juansequeda.com > I suspect that the obligatory query that everyone is dying to know is to get a distinct count of subjects. /me mumbles.. More realistically: * I would say that getting a sense of which vocabularies/ontologies are used is a good way to dive ib, and to come up with more specific/useful/interesting queries thereafter. * Look up and see which VoID information is available. Related to above point, e.g., void:vocabulary. * Check whether there is sufficient human-readable labels for the significant portion of the instances. * Check triples pertaining to provenance. * Check if there are sufficient interlinks to resources that presumably external to the ___domain in which the endpoint is at. Sorry, I'm not going to write out SPARQL queries here. Need to preserve brain-cells for the remainder of the day. -Sarven http://csarven.ca/#i
Received on Thursday, 22 January 2015 14:27:07 UTC