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For additional examples, some much simpler than the example above, see Mike Conlon's web site http://mconlon17.github.io/sparql 

Using SPARQL to

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clean data

Using SPARQL queries, one can find triples meeting a criteria for improvement.  You might query for people without labels, for example.

CONSTRUCT statements can be used to make triples that you would like to remove from your VIVO.  Run the query to make the triples, download them, then use System Admin > Add/Remove RDF data to Remove the triples you have constructed.  In a similar manner, you can construct improved triples and add them to you VIVO.

DESCRIBE queries

Vitro SPARQL supports DESCRIBE queries, but DESCRIBE is not well-defined by W3C standards, allowing implementation specific variations.  In Vitro, a request to DESCRIBE a URL will return all the triples with that URL as the subject.  So, for example:

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