James Heald <j.he...@ucl.ac.uk> wrote: > The post last autumn said you had 176,000 items matched to OSM, a very large > proportion of which (at least at that time) had no P31 "instance of", but > you had been able to deduce this from Wikipedia. > > Would it be possible to start loading Wikidata with that information -- ie > complete the P31's that were missing?
The code that generates the mappings uses Wikipedia categories, and it makes some mistakes. Take beaches for example: http://edwardbetts.com/osm-wikidata/2015-04-18/match_results/Beaches.html Some of the Wikidata items are about a beach, some about a settlement next to a beach. All of them are in within a beaches category on Wikipedia. It would be wrong to say that a settle with a beach is an instance of a beach. For this reason it probably doesn't make sense to add 'instance of' statements automatically. -- Edward. _______________________________________________ Wikidata-l mailing list Wikidata-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-l