It is a paper about structure,including wikipedia ,del.icon.us ,normal classify system.

1. Collaborative thesaurus tagging the Wikipedia way information management Teacher ： Wesley Shu Reporter ： Jizheng Tsai Mail:954203057@cc.ncu.edu.tw 此份講義採用 Creative Commons 「姓名標示 - 非商業性 - 相同方式分享台灣 2.0 版」授權條款

5. Introduction(3/3)

6. Wikipedia ’ s category system(1/6) Page Title Namespace Title [[Discussion: Apple]] Discussion Apple [[Banana]] main Banana [[category: fruits]] category fruits [[category: apples]] category apples

7. Wikipedia ’ s category system(2/6)

8. Wikipedia ’ s category system(3/6)

9. Wikipedia ’ s category system(4/6)

10. Wikipedia ’ s category system(5/6)

11. Wikipedia ’ s category system(6/6)

12. Thesauri in information retrieval and wikipedia(1/6)

13. Thesauri in information retrieval and wikipedia(2/6)

14. Thesauri in information retrieval and wikipedia(3/6)

15. Thesauri in information retrieval and wikipedia(4/6)

16. Thesauri in information retrieval and wikipedia(5/6)

19. Descriptors per record(1/2)

20. Descriptors per record(2/2)

21. Record per descriptor(1/2) Power Law Distribution

23. Descriptor level(1/2)

24. Descriptor level(2/2) Normal Distribution

25. Broder terms per term(1/2) Exponential Distribution

26. Broader terms per term(2/2)

27. Summary and conclusion

29. Thank you for listening Q&A