Maximilian KleinWikipedian in Residence at OCLC

25th February 2013

VIAF Data in Wikipedia & Wikidata

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Example VIAF Structure

Wikipedia

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Example VIAF Structure

http://en.wikipedia.org/wiki/%27Aziz_%27Ali_al-Misri

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

One Direction

VIAF English Wiki

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Enter VIAFBot: Wikipedia Robot

VIAF English Wiki

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Idea: Reciprocate

VIAF English Wiki

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

But, Deutsche Wiki has done part of this manually

VIAF Deutsche Wiki

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Verify where English – Deutsche agree

VIAF

English

Deutsche

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

& without Deutsche infromation

VIAF

English

Deutsche

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Final Product

.

.

.

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Statistics

• Conflicts

14,816

• Modified269,494

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Statistics

• Full report at• hangingtogether.org

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

How precise is the Algorithm?

• ~99% (From random sampling)• But not perfect

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

VIAF is watching

VIAF

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Fixing links

• If a human ameliorates Wikipeda

• VIAF.org watches the change,• and VIAF incorporates the

corrected data.

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Other Wikipedias

• French Wikipedia?• All other Wikipedias?

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Information Virus

• 1 month after VIAFBot• User:Jarekt copies VIAFbot’s links into

– Wikimedia Commons– Italiano Wikipedia

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Copying is a “Hack”

• Wikidata was created to resolve this elegantly

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

What is Wikidata?

• Wikidata item is a collection of Wikipedia articles

En

Fr

De

WD

En

FrDe

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

What will not change

• Language links will look same

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

But you can edit centrally

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

New: Declarations

• Semantic triple

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

New: Declarations

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

New: Declarations

Property Value

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Inclusion Syntax

• In Wikitext write

• {{ propriété:lieu de naissance}}

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Surprise! VIAF Wikidata Property Approved

E U R O P E, M I D D L E E A S T & A F R I C A R E G I O N A L C O U N C I L

Wikidata VIAFbot

• Very soon.

Maximilian KleinWikipedian in Residence at OCLC

25th February 2013

VIAF Data in Wikipedia & Wikidata

@notconfusing