* I think MapRoulette is actually the tool we should use to fix these issues. I am not yet sure how to build an OT query that gets relations for the challenge, but this approach should automate the whole process. Any ideas? https://github.com/maproulette/maproulette2/issues/259
* Wikidata tags are already being auto-added. Adding Wikipedia tag in iD editor automatically inserts the matching Wikidata tag - and I seriously doubt there are many editors who verify Wikidata ID, or even notice that it got auto-added. Relying on the "trickling effect" to ensure quality seems bad -- quality is much better ensured by automated rule based validations, and either autofix if obvious, or add them to MapRoulette for fixing by humans. Humans are a VERY expensive resource, lets use it only when necessary. * Wikidata ID does not have to be 1:1 with OSM. A Wikidata ID can be thought of as a more permanent ID for a Wikipedia title. So adding it simply locks WP title in place, nothing more. Yet, Wikidata could, in theory, be more precise. Instead of Wikidata that describes "civil and historical perish" (as a matching WP article), there could be a more precise "civil only" wikidata item. Most of the time, there is no additional item, and more work is needed to possibly create those in WD, and to decide how to link between them. In the mean time, having an ID pointing to the "mixed" item is ok - it already provides a huge benefit for analyzing, cross-linking, and quality assessment. And the mixed item links to the proper Wikipedia articles, which was the original goal. * By far the biggest issue I discovered was numerous "auto-injected" Wikipedia titles. It seems people mindlessly copied the object's title into the wikipedia tag, without even checking if the article exists, or if it's even about a place or something else. Adding Wikidata tag is a huge advantage as we now can quickly evaluate the relevance (item needs to be "instance of/subclass of" a location. This was never possible with just a text title. It would be amazing to clone/integrate Wikidata database into Overpass-Turbo, allowing much more complex validations. On Wed, Jan 4, 2017 at 11:12 AM Christoph Hormann <chris_horm...@gmx.de> wrote: > On Wednesday 04 January 2017, Andy Mabbett wrote: > > > > > > Then you'd need to change the tag definition on the wiki to reflect > > > that (and to explain what these circumstances are). > > > > You - and thus I - were talking about "Wikidata values", now you're > > talking about a single tag. Which is it, please? > > I am sorry - OSM terminology can be somewhat ambigous here. With tag > definition i mean the definition of the meaning of a certain tag, i.e. > what it is supposed to mean when an OSM feature has the tag wikidata=x. > This should be documented on the OSM wiki in a way that reflects actual > mapping practice and which is verifiable for mappers. > > With 'wikidata values' i was referring to the actual values that exist > for the wikidata key in our database. > > > And where is the link I requested? > > I considered that a rhetorical question. Taginfo gives you usage > statistics for the values used: > > http://taginfo.openstreetmap.org/keys/?key=wikidata#values > > -- > Christoph Hormann > http://www.imagico.de/ > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk >
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