Submissions/Flagged revisions study results

From Wikimania 2010 • Gdańsk, Poland • July 9-11, 2010


This is an open submission for Wikimania 2010.

Title of the submission
Flagged revisions study results
Type of submission (workshop, tutorial, panel, presentation)
Author of the submission
Felipe Ortega
E-mail address or username (if username, please confirm email address in Special:Preferences)
Country of origin
Affiliation, if any (organization, company etc.)
Libresoft, University Rey Juan Carlos
Personal homepage or blog
Abstract (please use no less than 300 words to describe your proposal)

The purpose of this presentation is to convey the most relevant conclusions extracted from the ongoing study of the performance of flagged revisions extension in the German Wikipedia. The project is funded by Wikimedia Deutschland and developed by Felipe Ortega at University Rey Juan Carlos, in Madrid (Spain).

“Flagged revisions” is a term to describe an extension for the MediaWiki software, which allows to prevent the latest update performed on a wiki page to be shown by default to unregistered users. The last version of the page flagged as “sighted” is displayed instead. It is supposed that this flagged version has been reviewed by an authorized editor, who ensures that the content has not been vandalized or damaged in any way and that the last modification is thus legit. Controlled pages as marked as “sighted” in the MediaWiki database.

The purpose of the evaluation is to analyze the influence of the edit approval system implemented at the German Wikipedia using the flagged revision extension on editorial and administrative work. Specifically, it should show whether this feature is a) effective and b) does not have averse effects. Therefore, the core questions to be answered are:

  1. .Does the application of flagged revisions reduce vandalism by anonymous users? Does it reduce the number of reverts and blocks against anonymous users?
  2. .Does it prevent/discourage anonymous users from editing? Does it decrease the number of people registering for a new account?

The analysis includes the application of statistical techniques on public data extracted from the German Wikipedia database dumps, including the complete dumps of page revisions and the logging dump, containing all information regarding special actions performed on the wiki (like page protection, user blocks, etc.). To develop this analysis, several extensions are being developed to allow the extraction of all relevant information from these dump files.

The results of the study are very relevant to evaluate the applicability of flagged revisions as a useful method to reduce vandalism from anonymous contributors. It will also provide objective information to consider its implementation in other language versions of Wikipedia.

Track (People and Community/Knowledge and Collaboration/Infrastructure)
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Yes, in any case.
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  1. guillom 21:35, 18 May 2010 (UTC)[reply]
  2. Meeso 01:38, 19 May 2010 (UTC) (I discussed some points in the talk-page!)[reply]
  3. --Nevinho 03:17, 19 May 2010 (UTC)[reply]
  4. Headbomb 04:42, 19 May 2010 (UTC)[reply]
  5. Drbug 13:56, 19 May 2010 (UTC)[reply]
  6. --Blacklake 20:12, 19 May 2010 (UTC)[reply]
  7. Gritzko 20:30, 20 May 2010 (UTC)[reply]
  8. Eloquence 02:22, 21 May 2010 (UTC)[reply]
  9. Psychology 09:22, 21 May 2010 (UTC)[reply]
  10. Solstag 07:02, 24 May 2010 (UTC)[reply]
  11. Polimerek 06:43, 25 May 2010 (UTC)[reply]
  12. --DR 11:31, 25 May 2010 (UTC)[reply]
  13. Bdamokos 15:24, 25 May 2010 (UTC)[reply]
  14. Kocio 11:34, 2 June 2010 (UTC)[reply]
  15. VasilievVV 18:20, 10 June 2010 (UTC)[reply]
  16. Karol007 21:19, 16 June 2010 (UTC)[reply]
  17. Cdani 11:57, 27 June 2010 (UTC)[reply]
  18. Natbrown 13:18, 29 June 2010 (UTC)[reply]
  19. Gustavocarra 13:51, 7 July 2010 (UTC)[reply]