Manybubbles added a comment. So I had a look at http://tools.wmflabs.org/wikidata-exports/rdf/exports/20150126/wikidata-statements.nt.gz and I actually understand it now. I'm starting a write up of my learning RDF [https://www.mediawiki.org/wiki/Wikibase/Indexing/RDF_Notes notes]. At first glance I really didn't like SPARQL but I'm coming around to it.
Anyway, it looks like that wikidata-statements file implements [http://korrekt.org/papers/Wikidata-RDF-export-2014.pdf the wikidata rdf paper]. In fact I think its made by the same folks. So, getting from what is in wikidata statements to the kind of simple queries you'd want to use in most cases seems like its really the problem with using RDF. An making those simple queries efficient. I want to be able to write: SELECT ?politician, ?spouse WHERE { ?politician wd:P106 Q82955 ; wd:P26 ?spouse ; wd:P509 wd:Q356405 . } and get all the politicians who died of blood letting and all of their spouses. wikidata-statements goes through many more steps and wikidata-simplified-statements doesn't typically have data about spouses because spouses are qualified with start and end times. We can obviously hack on the code that makes wikidata-statements. We could use RDR in some or all of these cases. We could use something like [http://www.slideshare.net/ntkimvinh7/www2014-singleton-propertyfinal singleton properties] instead, even. TASK DETAIL https://phabricator.wikimedia.org/T88717 REPLY HANDLER ACTIONS Reply to comment or attach files, or !close, !claim, !unsubscribe or !assign <username>. EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Smalyshev, Manybubbles Cc: Beebs.systap, Aklapper, Manybubbles, jkroll, Smalyshev, Wikidata-bugs, Jdouglas, aude, GWicke, daniel, JanZerebecki _______________________________________________ Wikidata-bugs mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
