Forwarding to Wikimedia-l to five context to James' reply. Sorry for cross-posting.

---------- Forwarded message --------- From: Denny Vrandečić vrandecic@google.com Date: Wed Oct 29 2014 at 10:56:48 AM Subject: [Wikidata-l] Birthday gift: Missing Wikipedia links (was Re: Wikidata turns two!) To: Discussion list for the Wikidata project. < wikidata-l@lists.wikimedia.org>, Wikimedia Mailing List < wikimedia-l@lists.wikimedia.org>

Folks,

as you know, many Googlers are huge fans of Wikipedia. So here’s a little gift for Wikidata’s second birthday.

Some of my smart colleagues at Google have run a few heuristics and algorithms in order to discover Wikipedia articles in different languages about the same topic which are missing language links between the articles. The results contain more than 35,000 missing links with a high confidence according to these algorithms. We estimate a precision of about 92+% (i.e. we assume that less than 8% of those are wrong, based on our evaluation). The dataset covers 60 Wikipedia language editions.

Here are the missing links, available for download from the WMF labs servers:

https://tools.wmflabs.org/yichengtry/merge_candidate.20141028.csv

The data is published under CC-0.

What can you do with the data? Since it is CC-0, you can do anything you want, obviously, but here are a few suggestions:

There’s a small tool on WMF labs that you can use to verify the links (it displays the articles side by side from a language pair you select, and then you can confirm or contradict the merge):

https://tools.wmflabs.org/yichengtry

The tool does not do the change in Wikidata itself, though (we thought it would be too invasive if we did that). Instead, the results of the human evaluation are saved on WMF labs. You are welcome to take the tool and extend it with the possibility to upload the change directly on Wikidata, if you so wish, or, once the data is verified, to upload the results.

Also, Magnus Manske is already busy uploading the data to the Wikidata game, so you can very soon also play the merge game on the data directly. He is also creating the missing items on Wikidata. Thanks Magnus for a very pleasant cooperation!

I want to call out to my colleagues at Google who created the dataset - Jiang Bian and Si Li - and to Yicheng Huang, the intern who developed the tool on labs.

I hope that this small data release can help a little with further improving the quality of Wikidata and Wikipedia! Thank you all, you are awesome!

Cheers, Denny

On Wed Oct 29 2014 at 10:52:05 AM Lydia Pintscher < lydia.pintscher@wikimedia.de> wrote:

Hey folks :)

Today Wikidata is turning two. It amazes me what we've achieved in just 2 years. We've built an incredible project that is set out to change the world. Thank you everyone who has been a part of this so far. We've put together some notes and opinions. And there are presents as well! Check them out and leave your birthday wishes: https://www.wikidata.org/wiki/Wikidata:Second_Birthday

Cheers Lydia

-- Lydia Pintscher - http://about.me/lydia.pintscher Product Manager for Wikidata

Wikimedia Deutschland e.V. Tempelhofer Ufer 23-24 10963 Berlin www.wikimedia.de

Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e. V.

Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg unter der Nummer 23855 Nz. Als gemeinnützig anerkannt durch das Finanzamt für Körperschaften I Berlin, Steuernummer 27/681/51985.

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