1 / 25

Measuring Author Contributions to the Wikipedia

Measuring Author Contributions to the Wikipedia. B. Thomas Adler , Luca de Alfaro , Ian Pye and Vishwanath Raman Computer Science Dept. UC Santa Cruz, CA, USA Computer Engineering Dept. UC Santa Cruz, CA, USA. Technical Report, May 2008 Presented by Wen-Yuan Zhu. Outline. Introduction

raymond-osborne
Download Presentation

Measuring Author Contributions to the Wikipedia

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Measuring Author Contributions to the Wikipedia B. Thomas Adler,Luca de Alfaro,Ian PyeandVishwanath Raman Computer Science Dept. UC Santa Cruz, CA, USA Computer Engineering Dept. UC Santa Cruz, CA, USA Technical Report, May 2008 Presented by Wen-Yuan Zhu

  2. Outline • Introduction • Contribution Measures • Analysis • Conclusion

  3. Introduction • to choose the order of authors when citing the content • how much work various users have performed? • incentive

  4. Introduction(2) • previous works • the total text created • total number of edits performed • but they are vulnerable to manipulation • doing a small modification • adding insignificance content

  5. Introduction(3) • not only quantity, but also quality • how many edits, how much text -> quantity • how long the change lasts -> quality • it cannot be easily gamed

  6. Introduction(4) • for each page p in Wikipedia

  7. Contribution Measures • if your edit is longevity, then you have the higher contribution • Edit Longevity • if text that you introduced is longevity, then you have the higher contribution • Text Longevity

  8. Contribution Measures(2) • Text longevity • only to consider adding text • so that • unfair • it fails to penalize spammers and vandals • Text longevity with penalty

  9. Edit Longevity Contribution Measures

  10. average edit quality Contribution Measures::Edit Longevity

  11. edit quality Contribution Measures:: Edit Longevity:: average edit quality

  12. edit distance • every word that is inserted or removed contributes 1 to the distance • every word that is replaced contribute 1/2 Contribution Measures:: Edit Longevity

  13. Text longevity Contribution Measures

  14. text quality measure Contribution Measures:: Text longevity

  15. Text longevity with penalty • anti-vandal • vandals will be reverted immediately Contribution Measures

  16. Edit Only and Text Only • only quantity in Edit Longevity • only quantity in Text longevity Contribution Measures

  17. Analysis • main namespace article revisions from the Wikipedia dump of February 6, 2007 • we consider only versions before October 1, 2006 • keeping only the last of consecutive versions by the same author Analysis

  18. Analysis

  19. Analysis

  20. Analysis

  21. Analysis

  22. compare

  23. compare

  24. compare

  25. Conclusion • to present and compare several possible ways to measure author contribution • to make sure that authors who make bad contributions get a low score • the Edit Longevity measure is a very interesting measure in our opinion

More Related