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Markus Krötzsch: Wikidata Toolkit Kickoff
Wikidata as aCultural HeritageInformation HubMarkus KrötzschKnowledge-Based SystemsTU Dresden
Europeana AGMNovember 2016
© Wikipedia user Hajotthu, 1994, CC-BY-SA 3.0All slides CC-BY 3.0, except those requiring CC-BY-SA 3.0
What is
?
“It's big!”“It's important!”
What is
?
“It's big!”“It's important!”
“We should use it more.”
What is
?
“It's big!”“It's important!”
“We should use it more.”
“Actually, I haven't really looked into it.”
What is
?
“It's big!”“It's important!”
“We should use it more.”
“Actually, I haven't really looked into it.”
“To be honest, I have no idea about this thing. Maybe wait till others use it …”
What is
?
What is
?
Wikipedia'sdatabase sister
A large multi-lingual
community site
The freeknowledge baseanyone can edit
>24,000,000data entities
>150,000contributors with at least one edit
Data Format
● Stored per entity
● Property-value assignments
Data Format
● Stored per entity
● Property-value assignments
creator Raphael
Data Format
● Stored per entity
● Property-value assignments
inventory number Gal.-Nr. 93
collection
● Assignment may have annotationsand references
GemäldegalerieAlte Meister
Data Format
● Stored per entity
● Property-value assignments
material used oil paint
canvas
● Assignment may have annotationsand references
● User-defined vocabulary
backgroundapplies to part
>120,000,000statements, about 50% sourced
>2,800distinct properties
189,929 visual artworks, including 154,212 paintings
© Bernardo Bellotto, 1748, public domain
28,798monuments
14,163sculptures
© Wikipedia user X-Weinzar, 2008, CC-BY-SA 2.5 © Wikipedia user Brunswyk, 2005, CC-BY-SA 3.0
703,126entities with a heritage status,
almost 130,000 with start time
© Rene Schwietzke, 2004, CC-BY 2.0
49,122musical compositions, including 4,337 operas
© Antonio Vivaldi, violin concerto Gßmajor RV 314, digitized by SLUB Dresden
as aninformation hub
50,777,678 links to 291 Wikipedias
767,361 links to 66 cultural heritage identification sites
24,561,400 links to 1,326 external DBs
Top 20 cultural heritage identifiers(without 396,778 National Heritage List for England numbers)
>1,500 museums with artworks on Wikidata
How is all this data used then?
● In Wikipedia
● In external apps
● In research
Understanding Wikidata Queries
More than30,000,000queries askedin Sept 2016
● About 10% from human users
● 2500 queries used “Europeana ID”
● More research needed …
“It's big!”“It's important!”
“We should use it more.”
What is
?“But how?”
Step 1:Connect
● Join ongoing data integration projects
● Crowdsource, e.g., using Mix'n'Match
Align Wikidata with your data
Step 2:Share
● Donate your datato Wikidata
● Integrate with and compare to Wikidata
Exchange data
Step 3:Exploit
● Create new services on Wikidata content and infrastructure
● Enjoy more links to your content from other services
Take advantage of your integrated data
Step 0:Ask
● Wikidata wiki & email list (community)
● Wikimedia Germany(development)
● Wikimedia Found.(operations)
Get in touch with the right people
“It's big!”“It's important!”
“We should use it more.”
What is
?“Let's get started!”
Markus Krötzsch, TU Dresden
