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Use Case: Ranking lodcloud lifesciences SPARQL endpoints

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timrdf edited this page Mar 11, 2012 · 4 revisions

Lena is doing cool stuff.

multiple datasets talk about molecules, such as:

http://srvgal78.deri.ie:8080/sparql.jsp hits http://srvgal78.deri.ie:8080/granatum/query with:

prefix void: <http://rdfs.org/ns/void#>
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>

select * where {
   service <http://hcls.deri.org:8080/openrdf-sesame/repositories/memory> {
            ?sparqlEndpoint void:class ?class .
                                       ?class rdfs:label ?classLabel .
   }
   filter regex(?classLabel, "compound|molecule|drug", "i")
}

To get an RDF file listing the "datasets" (though, it'd be nice to tie this back to the original URIs of the datasets):

prefix void: <http://rdfs.org/ns/void#>
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix dcat: <http://www.w3.org/ns/dcat#>
construct {
?sparqlEndpoint a void:Dataset ; a dcat:Dataset ; void:sparqlEndpoint ?sparqlEndpoint .
}
where {

service <http://hcls.deri.org:8080/openrdf-sesame/repositories/memory> {
?sparqlEndpoint void:class ?class .
?class rdfs:label ?classLabel .
}
filter regex(?classLabel, "compound|molecule|drug", "i")

}

prefix void: <http://rdfs.org/ns/void#>
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix dcat: <http://www.w3.org/ns/dcat#>
construct {
?databugSp a void:Dataset ; a dcat:Dataset ; void:sparqlEndpoint ?sparqlEndpoint .
}
where {

service <http://hcls.deri.org:8080/openrdf-sesame/repositories/memory> {
?sparqlEndpoint void:class ?class .
?class rdfs:label ?classLabel .
}
filter regex(?classLabel, "compound|molecule|drug", "i")

service <http://semantic.ckan.net/sparql> {
?dataset void:sparqlEndpoint ?sparqlEndpoint . 
}
}

Select just one (by identity): https://raw.github.com/timrdf/DataFAQs/master/services/sadi/faqt/access/lena-example-materials/sample-inputs/chebi-endpoint.ttl

Select everything in lifesciences (by tag): https://raw.github.com/timrdf/DataFAQs/master/services/sadi/core/select-datasets/by-ckan-tag-materials/sample-inputs/ckan-lifesciences.ttl

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