| Jheald added a comment. |
Presumably (as the original ticket suggests), one option would be to set up a Commons Data Query Service (CDQS) as a distinct endpoint on a new server that had both Wikidata and CommonsData installed in a Blazegraph instance locally. This would allow the existing WDQS service to continue without alteration, while allowing the CDQS service set-up to be optimised, as we learn more about the sort of queries that people want to run.
One further desideratum I would like to suggest is that (IMO) it would be very useful if the CDQS service also had access, ideally as triples, to a representation of the category structure on Commons. I can see a lot of potential interest in querying being done to compare information on how a set of files are categorised (perhaps all the files in a category or group of categories) with CommonsData for that set of files, and what those categories could be understood to represent as described by the statements on sitelinked Wikidata items (where available). Both CommonsData and the Commons categories would benefit from the possibility of easy creation of queries with a view to synchronising information between the two. This would be hugely facilitated if Commons categories could be maintained as RDF entities in the CDQS system, with information on file membership of them; their own category membership; and their sitelinks to Wikidata items.
Cc: Jheald, Aklapper, Smalyshev, Ramsey-WMF, Cparle, Nandana, JKSTNK, Lahi, PDrouin-WMF, Gq86, E1presidente, Anooprao, SandraF_WMF, GoranSMilovanovic, QZanden, EBjune, Tramullas, Acer, V4switch, LawExplorer, Susannaanas, Wong128hk, Jane023, Wikidata-bugs, Base, matthiasmullie, aude, Ricordisamoa, Wesalius, Lydia_Pintscher, Fabrice_Florin, Raymond, Jdforrester-WMF, Steinsplitter, Matanya, Mbch331
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