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Incentive Systems for
Knowledge Sharing on the Web
Ansgar Grüne, Bonn
FBCamp Hamburg, March, 15, 2014
Wikipedia (2001)
Wikipedia (2001)
● 31 million articles
● 2.6 billion words
● 287 languages
● very good content
● everything done by volunteers
➔HOW IS THAT POSSIBLE?
Evolution of Cooperation
1984 2011
Evolution of Cooperation
Five Pillars of Cooperation
(applicable to Wikipedia?)
1. direct reciprocity (X ?)
2. indirect reciprocity (→reputation)
3. group selection (→group feelings)
4. kin selection (X)
5. local / network effects (X)
(Nowak, Science, 2006)
Wikipedia: User Access Levels
EDIT CREATE UPLOAD, EDIT
PROTECTED
DELETE,
BLOCK
PROMOTE
USERS
GLOBAL
RIGHTS
unregistered
User
√
new User √ √
autoconfirmed
User (> 4 days,
>10 edits)
√ √ √
Administrator
(request)
√ √ √ √
Bureaucrat
(request)
√ √ √ √ √
Steward
(election)
√ √ √ √ √ √
Wikipedia: Reputation not enough?
Quelle: https://en.wikipedia.org/wiki/File:Active_administrators_vs_active_editors.png
● founded 2008
● question & answer for programming
● 1.9 millionen registered users
● 5.5 million questions
● tagging, up-/down voting, reputation
score
Stackoverflow: Some Privileges
Score Privilege
≥ 1 create post
≥ 15 vote up
≥ 125 vote down
≥ 2000
edit all posts
w/o review
≥ 10000
delete
questions
≥ 20000 all privileges
Stackoverflow: Some Badges
Bronze Silver Gold Reason
Nice Question
Good
Question
Great
Question
Votes
Popular
Question
Notable
Question
Famous
Question
Views
Nice Answer Good Answer Great Answer Votes
Enthusiast Fanatic
Consecutive
Daily Visits
Mortarboard Epic Legendary
≥ 200 Daily
Reputation
Stackoverflow
-
− wrong incentives
− Not democratic enough
(destroys group feeling)
− not open enough
− not pedagogic
− un-answered questions
source for criticism:
http://michael.richter.name/blogs/why-i-no-longer-contribute-to-stackoverflow/
+
+ good incentives
+ lists of top users for
each tag
http://stackoverflow.com/tags/facebook/topusers
+ democratic
+ open
Others
− Facebook's like button
− Twitter retweet
− Facebook Questions
− Quora
− Yahoo!Answers
− answers.com
− gutefrage.net
− werweisswas.de
...
Ideas
[…]
(Slide removed. Please, contact me if you
are interested in exchanging ideas!)
Thank you for your attention!
More ideas, remarks,
hints, opinions,
questions?
Xing, LinkedIn: Ansgar Grüne

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Incentive Systems For Knowledge Sharing

  • 1. Incentive Systems for Knowledge Sharing on the Web Ansgar Grüne, Bonn FBCamp Hamburg, March, 15, 2014
  • 3. Wikipedia (2001) ● 31 million articles ● 2.6 billion words ● 287 languages ● very good content ● everything done by volunteers ➔HOW IS THAT POSSIBLE?
  • 5. Evolution of Cooperation Five Pillars of Cooperation (applicable to Wikipedia?) 1. direct reciprocity (X ?) 2. indirect reciprocity (→reputation) 3. group selection (→group feelings) 4. kin selection (X) 5. local / network effects (X) (Nowak, Science, 2006)
  • 6. Wikipedia: User Access Levels EDIT CREATE UPLOAD, EDIT PROTECTED DELETE, BLOCK PROMOTE USERS GLOBAL RIGHTS unregistered User √ new User √ √ autoconfirmed User (> 4 days, >10 edits) √ √ √ Administrator (request) √ √ √ √ Bureaucrat (request) √ √ √ √ √ Steward (election) √ √ √ √ √ √
  • 7. Wikipedia: Reputation not enough? Quelle: https://en.wikipedia.org/wiki/File:Active_administrators_vs_active_editors.png
  • 8. ● founded 2008 ● question & answer for programming ● 1.9 millionen registered users ● 5.5 million questions ● tagging, up-/down voting, reputation score
  • 9. Stackoverflow: Some Privileges Score Privilege ≥ 1 create post ≥ 15 vote up ≥ 125 vote down ≥ 2000 edit all posts w/o review ≥ 10000 delete questions ≥ 20000 all privileges
  • 10. Stackoverflow: Some Badges Bronze Silver Gold Reason Nice Question Good Question Great Question Votes Popular Question Notable Question Famous Question Views Nice Answer Good Answer Great Answer Votes Enthusiast Fanatic Consecutive Daily Visits Mortarboard Epic Legendary ≥ 200 Daily Reputation
  • 11. Stackoverflow - − wrong incentives − Not democratic enough (destroys group feeling) − not open enough − not pedagogic − un-answered questions source for criticism: http://michael.richter.name/blogs/why-i-no-longer-contribute-to-stackoverflow/ + + good incentives + lists of top users for each tag http://stackoverflow.com/tags/facebook/topusers + democratic + open
  • 12. Others − Facebook's like button − Twitter retweet − Facebook Questions − Quora − Yahoo!Answers − answers.com − gutefrage.net − werweisswas.de ...
  • 13. Ideas […] (Slide removed. Please, contact me if you are interested in exchanging ideas!)
  • 14. Thank you for your attention! More ideas, remarks, hints, opinions, questions? Xing, LinkedIn: Ansgar Grüne