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Wikipedia ws

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Wikipedia ws

  1. 1. 2009 11 26 1
  2. 2. 7000.006000.005000.004000.003000.002000.001000.00 0 1 2
  3. 3. ✤ ✤ ✤✤ ✤ ✤ 3
  4. 4. Credibility Degree 0.4 4
  5. 5. Wikipedia 5
  6. 6. Wikipedia 5
  7. 7. Adler et al. WikiSym ’08, WWW 2007 ✤ Author A ✤ Author B ✤ Author CLifetime = lifetime 6
  8. 8. Lifetime 50 OK37.5 NG 2512.5 0 1 2 3 4 5 6 7 8 9 10 7
  9. 9. 60 =1 =167 =7 =1✤ ✤ Wikipedia : 60 ✤ 950,548 , 300 GB ✤ Wikipedian : 70 ✤ : 1 11,625 8
  10. 10. ✤ (kBytes) 3,000 2,250 ✤ 80% 1,500 (Ziph ) 750 ✤ 20% 80% 0 ID 9
  11. 11. ✤✤ 10 (x 1000 editors)✤ 9 8 7 Number of Editors 6✤Adler Uncredible editors 5 4 Credible editors 3 2 1 0 -10 -8 -6 -4 -2 0 2 4 6 8 10 (degrees) Reliability Degree ? 10
  12. 12. 1.2.3.4. 11
  13. 13. 1.2.3.4. ? 12
  14. 14. 1.2.3.4. = x -log ? 13
  15. 15. 1 0.9 0.8Spearmans rank correlation coefficient 0.7 0.6 0.5 0.4 Amount of description 0.3 Number of articles 0.2 Amount of desciption 0.1 and Number of articles 0 0 10 20 30 40 50 60 70 80 90 100 Reduction ratio of editors (%) 14
  16. 16. ✤ ✤ ✤✤ ✤ ✤ 15
  17. 17. ✤ ✤ Wikipedia ✤ 85,028 13.6%) 705,713 (Bot )✤ ✤ 98 443 ) 16
  18. 18. 1,000,000 900,000 800,000 700,000Calculation time (ms) 600,000 500,000 400,000 Amount of description 300,000 Number of articles 200,000 Amount of description and 100,000 number of articles 0 0 10 20 30 40 50 60 70 80 90 100 Decreasing ratio of editors (%) 17
  19. 19. 10 9 8 40% 7 Amount of descriptionAveraging Increaced Rank and number of articles 6 Amount of description 5 4 3 2 Number of articles 1 0 Important Editor Identification Method 18
  20. 20. ✤ ✤✤ ✤ 2% ✤ ✤ ✤ 19
  21. 21. ✤ ✤ ✤✤ ✤ ✤ 20
  22. 22. 21

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