mapbox / Wikimama
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OSM <-> Wikidata matching
This repo contains scripts to aid in manually matching OSM IDs to Wikidata IDs. See https://wiki.openstreetmap.org/wiki/Wikidata for details.
Setup
Use node version >= 6
npm link
pip install -r requirements.txt
match-wikidata-osm --file input.csv
batch-match.js
batch-match.js takes a CSV of places and queries Overpass for OSM features, then Wikidata for neighboring entities, runs a match based on geographic distance and levenshtein distance. It finally writes the possible matches into a CSV for manual verification.
node batch-match.js --file input.csv
input.csv
is expected in this format:
City, longitude, latitude, wikidata_id, radius, threshold distance
City: name of the city for which the neighbourhoods around it are looked for
Longitude: Longitude value at the centre of the city
Latitude: Latitude value at the centre of the city
wikidata_id: Wikidata id of the city
Radius: Distance to query from the centre of the city
Threshold distance: Maximum distance around osm feature which needs to be looked for potential wikidata matches. For example, when looking for a match for a neighbourhood, this value could go low upto 2 km. But when looking for a match for a country or so, this value can go high upto 500 km.
Note: See an example input file under test folder.
batch-match.js uses the following pieces:
query-overpass.js
Queries Overpass for OSM features around a particular coordinate. See query.ql for the query. Radius is in kilometers. Returns results as CSV.
query-wikidata.js
Queries Wikidata for features around a particular Wikidata entity defined by a radius.
match.py
Take OSM features and wikidata features and uses distance as well as fuzzy name matching to predict potential matches and generates a CSV for manual review.
One can also use the above three scripts in a standalone manner.
query.js
For querying wikidata, use the following command. It will generate city_name_wiki.csv.
node query.js wikidata city_name wikidata_id radius
For querying overpass, use the following command. It will generate city_name_osm.csv.
node query.js overpass city_name longitude latitude radius
For creating match between osm csv and wiki csv, use the following command.
python match.py osmCSV wikiCSV Threshold distance