This page describes what
coordinates tracking
is and how it should work. At the moment every Wikipedia has location information stored locally. Wikidata items also contain location information for a lot of items using
coordinate location
(P625)
. This data should be compared to add missing coordinates to Wikidata, to fix errors and to improve quality of coordinates here.
Several possibilities
- Coordinate on Wikipedia, but not in Wikidata (
Category:Coordinates not on Wikidata
(Q15181099)
) → import it
- Coordinate on Wikipedia and on Wikidata (
Category:Coordinates on Wikidata
(Q15181105)
). Two options:
- Coordinate on Wikipedia and on Wikidata and both are exactly the same → do nothing
- Coordinate on Wikipedia and on Wikidata, but these coordinates are not the same. This is where it gets interesting.
- Coordinate on Wikidata, but not on Wikipedia. →??
Comparing two coordinates is going to be a challenge. Obvious errors (wrong part of our earth) are easy to spot, but two coordinates a meter apart shouldn't be showing up as an error. We should make a coordinate compare function in lua that takes into account the precision (/zoom) and has thresholds to not get (too many) false positives. Once we have that we can start improving our coordinate data.