On 27/08/2014 22:15, Andy Mabbett wrote:
What, again? ;-)
You've been "beating the drum" for wikidata for a while, but that's mostly been on the GB list or even more locally. I definitely think that it's worth explaining the benefits on talk@.
For example: Wikidata has data on each of these entiti which eitherisnt in OSM (who's the ayor of this town/ vicar of this church?)
OK - not sure how that's a benefit to OSM as such, though I'm sure people could do "useful unexpected things" with those links.
or which acts as a csanity check for what is in OSM (We can generate lists where the two disagree, for humans to check and fix).
That sounds useful, but sounds like "in theory someone could generate a list" rather than actually volunteering to do so.
Wikidata has multi-lingual labels for many objects, which OSM renderers can fetch via the Wikidata link.
That's definitely useful. It would allow us to split the "verifiable on the ground" stuff from the other stuff - it should save us having 190 names for Berlin that mostly say "Berlin".
Another one (mentioned on IRC) is a way to get up to date population data for places - data that couldn't or shouldn't be in OSM for licence reasons, or (like your "vicars" example) is continuously changing and not easily verifiable.
What disadvantages do you forsee?
Maintainability, as has already been mentioned. With any import there has to be a plan for "how do we make sure this data stays up to date", and I'm not seeing that yet.
Another issue is with "dodgy data" on either the OSM or the wikidata side. I've already mentioned "non-existing villages" in wikipedia, but there are also examples where the OSM side's iffy too, which could result in a false match.
(assuming that it's considered a good idea to add the tags at all) 71k worldwide matches doesn't sound like _that_ many to check manually - it'd be useful to know how many of those matches there were per (US) state, (UK) county or (DE) Land, or similar.
I think the issue raised have been addressed; which do you feel have not been?
Specifally, comments such as "In my opinion, the risks of doing this automatically are just too high", "+1 to not import blindly but require human confirmation" and "that's why I was asking how you proposed to measure it" in those threads.
Cheers, Andy _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
