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Wikidata The free knowledge base that anyone can edit Anja Jentzsch - @anjeve Hasso Plattner Institute, Potsdam, Germany Open Data Lecture, HTW Berlin 2015/01/12
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Transcript of Wikidata
WikidataThe free knowledge base that anyone can edit
Anja Jentzsch - @anjeve Hasso Plattner Institute, Potsdam, Germany
!!!
Open Data Lecture, HTW Berlin 2015/01/12
Imagine a world in which every single human being can freely
share in the sum of all knowledge.
33 500 000 articles
1 900 000 000 edits
287 languages
But...
1. low-tech (but powerful)
What are the 10 biggest cities that have a female mayor?
What are the 10 biggest cities that have a female mayor?
2. editor retention and recruiting
3. coverage and reach
English
French
Italian
Greek
Turkish
1 000 000+ articles: 12 Wikipedias
100 000+ articles: 39 Wikipedias
total: 287 Wikipedias
Wikidata to the rescue!
A free knowledge base that anyone can edit
Structured Data is stored in a structured form allowing easy access and reuse
Collaborative Data is maintained by Wikidata editors (volunteers)
Free Data stored in Wikidata is published under a free license
Open The software is also open and free
What is Wikidata actually?
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?
• 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
The world according to Wikidata
• allows a lot of easy micro-contributions • supports small languages • allows easy data entry and editing • automates some stuff currently done by hand
How does Wikidata help?
can handle qualifiers and sources
can handle differing opinions
cc-by-sa 3.0 by BambooBeast
Time for some stats
30 600 000+ language links removed
27 000 000+ statements created
14 000+ active editors
(ranks 5th among all Wikimedia projects)
6600+ new Wikimedians
Visualizations
Wikidata tempo-spatial display tools.wmflabs.org/wikidata-todo/tempo_spatial_display.html?q=Q12551
Wikidata Map Interface tools.wmflabs.org/wikidata-analysis/map/map.html
Wikidata Map Interface tools.wmflabs.org/wikidata-analysis/map/map.html
• large multilingual 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?
!
Open Data Publisher Award (2014)
Received at the Open Data Institute by Nigel Shadbolt and Tim Berners-Lee
" We’ve decided to help transfer the data in Freebase to Wikidata, and in mid-2015 we’ll wind down the Freebase service as a standalone project.
moves to Wikidata
Google, 2014-12-16 https://plus.google.com/u/0/109936836907132434202/posts/bu3z2wVqcQc
• Improved user experience • Queries • More tools • Growing the ecosystem !
wikidata.org/wiki/Wikidata:Development_plan
What 2015 will bring
What are YOU going to do with Wikidata?
wikidata.org @wikidata #wikimedia-wikidata [email protected]
![Scholia, Scientometrics and Wikidata · workshop in 2016 [33]. The bibliographic information collected on Wikidata is about books, arti-cles (including preprints), authors, organizations,](https://static.fdocuments.us/doc/165x107/5f08281a7e708231d4209e97/scholia-scientometrics-and-wikidata-workshop-in-2016-33-the-bibliographic-information.jpg)
