What is the current coverage of Who's on First in term of number of places, types of places, and databases linked?

They claim 26 million place records. I haven't cloned the data repository to verify (it's huge).

There are 27 place types (code).

There is a long list of sources (code), but an incomplete list of concordances. But as a random example, here are the concordances for Montréal.

"wof:concordances":{
        "dbp:id":"Montreal",
        "fb:id":"en.montreal",
        "fct:id":"03c06bce-8f76-11e1-848f-cfd5bf3ef515",
        "gn:id":6077243,
        "gp:id":3534,
        "loc:id":"n80132975",
        "nyt:id":"N59179828586486930801",
        "qs:id":239659,
        "qs_pg:id":239659,
        "tgn:id":7013051,
        "wd:id":"Q340",
        "wk:page":"Montreal"
}

I hope this helps!

On Wed, Jan 31, 2018 at 2:25 PM, Nicolas Torzec <torzecn@oath.com> wrote:
Hi,

Assuming the precision of those mappings is good, I also think that it would make sense to import them into Wikidata to increase its coverage of geographic identifiers (Q36214810) and authority control ID for places (Q19829908).

What is the current coverage of Who's on First in term of number of places, types of places, and databases linked?

-N.



On Tue, Jan 23, 2018 at 11:47 AM, David Barratt <dbarratt@wikimedia.org> wrote:
Once upon a time there was an awesome maps company called Mapzen. All of their software was open source and all their data sets were licensed under a free license.

Sadly they are shutting down.

One of their projects was Who's on First which is a gazetteer of places. The data is a huge collection of geojson files hosted on github.

The place files include a concordance of ids in other systems... including Wikidata. :)

Mapzen used the data in Wikidata in their Places API (source code) to translate place names.

I'm not sure if we would have any interest in using/importing this data in Wikidata, but I thought I'd make more people aware of an awesome free license data set that needs some help now that Mapzen is going away.

Thanks for everything you do!
David Barratt

_______________________________________________
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata



_______________________________________________
Wikidata mailing list
Wikidata@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata