Models of Wikipedia Dynamics

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A summary slide set of the research on wikipedia dynamic changes.

To be presented at WikiSym 2009 in Florida.

2009-09-25 Wikisym Summary V2

Published in: Technology, Business
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Models of Wikipedia Dynamics

  1. 1. Models of Wikipedia Dynamics Ed H. Chi (joint work with Bongwon Suh, Gregorio Convertino, Peter Pirolli) Area Manager Augmented Social Cognition Area Intelligent Systems Laboratory
  2. 2. Total Edits Changes Intelligent Systems Laboratory
  3. 3. Total Active Editors Intelligent Systems Laboratory
  4. 4. Logistic Model (k=carrying capacity) Intelligent Systems Laboratory A hypothetical logistic Lotka-Volterra population growth model bounded by a limit K. P = population size r = growth rate K = carrying capacity
  5. 5. Logistic Growth Model Intelligent Systems Laboratory
  6. 6. A Revised Logistic Growth Model Intelligent Systems Laboratory
  7. 7. Deeper Analysis based on Editor Classes
  8. 8. Edit Activities by Editor Class Intelligent Systems Laboratory
  9. 9. Edit Activities by Editor Class Intelligent Systems Laboratory
  10. 10. Resistance (Revert Ratio) Intelligent Systems Laboratory
  11. 11. Population shift Intelligent Systems Laboratory
  12. 12. Population Shifts (log scale) Intelligent Systems Laboratory
  13. 13. Population Shift (%) Intelligent Systems Laboratory
  14. 14. Admin Changes and Protection Measures
  15. 15. Admin changes Intelligent Systems Laboratory
  16. 16. User Blocks Intelligent Systems Laboratory
  17. 17. Page Protection Intelligent Systems Laboratory
  18. 18. Pages Survived vs. Deleted (in thousands) Intelligent Systems Laboratory
  19. 19. Key takeaways <ul><li>Wikipedia can be viewed as an in-vivo, unprecedented experiment on knowledge co-creation. </li></ul><ul><li>Editing activity changing </li></ul><ul><ul><li>Moved from exponential growth to logistic growth </li></ul></ul><ul><li>Population dynamic changing </li></ul><ul><ul><li>Revert resistance different for lower class editors </li></ul></ul><ul><ul><li>Middle class being squeezed </li></ul></ul><ul><ul><li>Pyramid structure important? </li></ul></ul><ul><li>Protection measures correlate with activity </li></ul>

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