Wikidata - The free knowledge base anyone can edit

Talk at 6th Data Science Day Berlin, 2014-05-08

Transcript

1. WIKIDATA The free knowledge base that anyone can edit Anja Jentzsch - @anjeve Hasso Plattner Institut, Potsdam ! 6th Data Science Day Berlin 2014/05/08
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?
15. What are the 10 biggest cities that have a female mayor?
16. 2. editor retention and recruiting
18. ha.wikipedia.org
19. 3. coverage and reach
20. English
21. French
22. Italian
23. Greek
24. Turkish
25. 1 000 000+ articles: 4 Wikipedias 100 000+ articles: 40 Wikipedias total: 285 Wikipedias
26. Wikidata to the rescue!
27. A free knowledge base that anyone can edit
28. • Structured – Data is stored in a structured form allowing easy access and reuse • Collaborative – The data is maintained by Wikidata editors (volunteers) • Free – The data stored in Wikidata is published under a free license • Open – The software is also open and free WHAT IS WIKIDATA ACTUALLY?
29. • Multilingual – Editing, consuming, browsing and reusing the data is fully multilingual • Referenced – Wikidata can handle sources for individual statements • Integrated – Client sites such as Wikipedia are hooked up for direct data access WHAT IS WIKIDATA ACTUALLY?
30. • REST API for read/write • Full dumps of everything • Many formats: JSON, XML, RDF, … • CC0 license • Stable IDs / URIs • Linked Open Data standards ALL DATA IS AVAILABLE
36. • allow a lot of easy micro-contributions • support small languages • allow easy data entry and editing • automate some stuff currently done by hand HOW DOES WIKIDATA HELP?
37. can handle qualifiers and sources
38. can handle differing opinions cc-by-sa 3.0 by BambooBeast
39. Time for some stats
40. 240 000 000+ language links removed
41. 27 000 000+ statements created
42. 109 000 000+ edits
43. 4400+ active editors (ranks 5th among all Wikimedia projects)
44. 6600+ new Wikimedians
45. Visualizations
46. GeneaWiki toolserver.org/~magnus/ts2/geneawiki
47. Wikidata tempo-spatial display tools.wmflabs.org/wikidata-todo/tempo_spatial_display.html?q=Q12551
48. Wikidata Map Interface tools.wmflabs.org/wikidata-analysis/map/map.html
49. Wikidata Map Interface tools.wmflabs.org/wikidata-analysis/map/map.html
50. • large multi-lingual knowledge base with references • huge amount of data under an open license • for free! • various data access points: 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 DOES WIKIDATA MEAN FOR THE WORLD OUTSIDE WIKIMEDIA?
51. • Improved user experience • Queries • More tools • Growing the ecosystem ! wikidata.org/wiki/Wikidata:Development_plan WHAT 2014 WILL BRING
52. What are YOU going to do with Wikidata?
53. wikidata.org @wikidata #wikimedia-wikidata wikidata-l@lists.wikimedia.org