1. Wikipedia Network Analysis: Commonality detection among Wikipedia authors
Deepthi Sajja

2. How many of you have ever edited wikipedia article/articles?
How many of you have analysed or read about wikipedia network?

3. Introduction: Evolution of Wikipedia
Wikipedia began as a complementary project for Nupedia in 2001.
Articles were written by experts and reviewed under a formal process.
Goal of making a publicly editable encyclopedia.

4. Content distribution of Wikipedia

5. Growth of Wikipedia
As of October 25, 2016 there are 5,269,891 articles

7. Why Do People Write for Wikipedia?
An interview was conducted with 22 volunteer encyclopedia writers in the fall of 2004 and spring of 2005
Volunteers include people who spent up to 30 hours a week

8. Motivation behind the contributors
Like scientists,contributors to Wikipedia seek to collaboratively identify and publish true facts about the world.

9. Motivation behind the contributors
credibility
Wikipedia has indirect attribution of authorship.
Most have been edited numerous times by numerous people and explicit attribution would seem to be impossible.

10. Inequality of Contributions
great number of authors with few contributions
Small group of authors contribute to large number of articles and the other group contributes to one or two articles and also mostly participates in editing the existing articles.

11. Slowing Growth of Wikipedia
Till 2007, Wikipedia has characterized the growth in content and editors as being fundamentally exponential in nature.

12. Active editors analysis

13. Why network structure matters
Disputed vs Undisputed articles
We need to look at structural features of the network rather than just at their attribute measures.
Varying edit histories and reverts due to variations in the bipolarity.

14. Objective:
To try and analyze the future growth of Wikipedia network.
Centered towards the individual articles vs contributors rather than whole network

15. Why previous works are not so reliable
Most of the analysis was done between
Wikipedia network is different from typical social networks.
Growth is purely dependent on contributors.
Potential risk of core authors exhauting contributions.

16. Number of contributors editing a Wikipedia article
Features considered
Number of contributors editing a Wikipedia article
Rather than number of edits of whole network and contributors active history,I consider contributors per article over one year span based on the latest data dumps and go back up to last five years for comparison purposes.

17. Features considered (contd)
Key authors of the article
Previous attempts were made to rank the authors based on
their global contributions of the Wikipedia articles
Identify the key authors of individual article based on the edit , revert history and information level presented.
Find out how frequently the article creator becomes the key author

18. Features considered (contd)
Frequency of set of authors having contributions to common Wikipedia articles.

19. Questions?