- SPARQL 4 QC - Using SPARQL queries for quality control and metrics (In Progress) - Slides: SPARQL 4 QC.pptx
- Why quality control: Who manages the Wikidata store? Everyone/anyone can edit? Keeping track of our contributions, managing changing links (e.g. Finding Aid migrations)
- Query examples: How many items use the "archives at" property? (e.g. for archives anywhere (65650!), and for archives at the Ransom Center (149!)
- Wikibase RDF mapping diagram = "Holy grail" for understanding how to build effective queries that get at different parts of the graph database
- (see link in slide for this)
- Explanation of HRC current practice for the "archives at" property - display in Wikidata and actual component breakdown with qualifiers for queries
- Demo of query to find out what qualifiers are being currently used in "archives at" statements
- Demo of query to find all items with "archives at" HRC and potential qualifiers (to gauge consistency in descriptions) - inconsistent with use of title and named qualifiers, helps surface improvements for consistency
- Demo of query to find properties most often applied to references of "archives at" statement
- Demo of query to retrieve values of reference properties for "archives at" the HRC (to gauge consistency in descriptions and level of completeness)
- Demo of query to retrieve all items with references that have an HRC Finding Aid URL as a value (so far doesn't work, so it needs refinement)
- For any of these queries, export large result sets for QC outside of Wikidata interface
Feedback from group: great examples of how to query what others are doing in Wikidata, extremely helpful for many in this group