1. WIKIDATA
The free knowledge base that anyone can edit
Anja Jentzsch - @anjeve
Hasso-Plattner-Institute, Potsdam, Germany
1st Linked Data Meetup @ Foo Café, Malmö
2103/05/23

2. How many of you have edited
Wikipedia at least once?

3. Imagine a world in which every
single human being can freely
share in the sum of all
knowledge.

5. 23 000 000 articles
1 400 000 000 edits
285 languages

6. But...

7. 1. low-tech
(but powerful)

8. What are the 10 biggest cities
that have a female mayor?

13. What are the 10 biggest cities
that have a female mayor?

14. 2. editor retention and recruiting

17. 3. coverage and reach

18. English

19. French

20. Italian

21. Greek

22. Turkish

23. 1 000 000+ articles: 4 Wikipedias
100 000+ articles: 40 Wikipedias
total: 285 Wikipedias

24. Wikidata to the rescue!

25. • repository of the world's knowledge
• database anyone can read and edit
• multi-lingual
• designed to deal with the reality Wikipedia
has to deal with
• Free Software
WHAT IS WIKIDATA ACTUALLY?

26. 1. Interwiki links
2. Infoboxes
3. Lists
3 PHASES

31. • allow a lot of easy micro-contributions
• support small languages
• allow easy data entry and editing
• automate some stuff currently done by hand
HOW WILL WIKIDATA HELP?

32. Why is this special?

33. can handle a lot of
languages

34. can handle qualifiers and sources

35. can handle
differing opinions
cc-by-sa 3.0 by BambooBeast

36. • large multi-lingual knowledge base with references
• huge amount of data under an open license
• for free!
• API, Linked Data interface
• edited and maintained by a large community
• an example of introducing a major change to a huge
collaborative project
• run your own instance
WHAT DOESTHIS MEAN FORTHE
WORLD OUTSIDE WIKIMEDIA?

37. A lot of good stuff will happen!

38. • water sport wiki
• patent tracking
• government data
• ordnance data collection
• ...
BUILDING ON WIKIDATA

39. What areYOU going to do with
Wikidata?

40. Imagine a world in which every
single human being can freely
share in the sum of all
knowledge.

41. wikidata.org
@wikidata
#wikimedia-wikidata
wikidata-l@lists.wikimedia.org