/nvsSPARQL

Query NVS with sparql

Primary LanguageJupyter Notebook

nvsSPARQL :: Query NVS using sparql

intro

This repo contains some examples of how to use SPARQL to query the NVS vocab server

python users

basic

If you choose to work with pyhton please install the sparqlwrapper with this command:

pip install SPARQLWrapper

Check the examples in the folder ./pythonSPARQL

convenience

Alternatively you can work with the pykg2tbl library. This includes the previous one, but adds some convenience:

  • removes the embedded sparql from your py code into separate files that support templated - generative patterns that avoid repeating yourself
  • exports results to pandas dataframes for further analysis
  • allows to test queries versus RDF dump files as well (not only remote SPARQL endpoints)

So, if this sounds like you, then go for this install:

pip install pykg2tbl

And check out these ipynb examples in the ./templated-queries folder:

notebook showcasing used templates
01-listing-collections-and-terms some standard lookups of collections and terms within them nsv-list-collections, nsv-listing, nsv-find
02-eov-matching how to use both the puv and iop crosswalks between EOV (A05) and applicable measurements (P01) nsv-eov-to-usage_via-iop/puv