1. May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski, Katarzyna Stankiewicz, Brain Davis, John G. Breslin

2. May 23, 2006IRW2006 Edinburgh, Scotland2 Identity on the Web

3. May 23, 2006IRW2006 Edinburgh, Scotland3 Personal Identity on the Web

4. May 23, 2006IRW2006 Edinburgh, Scotland4 Personal Identity Account –Blog –Email –Community sites Flickr Orkut

5. May 23, 2006IRW2006 Edinburgh, Scotland5 One URI per one thing

6. May 23, 2006IRW2006 Edinburgh, Scotland6 One identity per one person

7. May 23, 2006IRW2006 Edinburgh, Scotland7 Reason of multiple identities Writers want to use a pen name People like to grumble on the web Makes feel free to write People want to use

8. May 23, 2006IRW2006 Edinburgh, Scotland8 Reason of multiple identities People want to know one subject not whole people People don’t need unique identity

9. May 23, 2006IRW2006 Edinburgh, Scotland9 What is the problem?

10. May 23, 2006IRW2006 Edinburgh, Scotland10 Identity crisis *Sorry, I lost the sources of images

11. May 23, 2006IRW2006 Edinburgh, Scotland11 To solve personal identity crisis Objective

12. May 23, 2006IRW2006 Edinburgh, Scotland12 What is the important thing to analyze identity?

13. May 23, 2006IRW2006 Edinburgh, Scotland13 Link From: http://www.xarxanet.org/xarxanet/novetatsDetall.xarxanet? xnt_locale=ca&xnt_portal=1&nov_novetatId=26947 Page Rank

14. May 23, 2006IRW2006 Edinburgh, Scotland14 For the personal identity

15. May 23, 2006IRW2006 Edinburgh, Scotland15 Links In conflict FatherMaster

16. May 23, 2006IRW2006 Edinburgh, Scotland16 Trust Meta-link to make links Can be propagated Trust

17. May 23, 2006IRW2006 Edinburgh, Scotland17 Trust Meta-link to make links Can be propagated Love Trust

18. May 23, 2006IRW2006 Edinburgh, Scotland18 Give a better model of trust among the people Method

19. May 23, 2006IRW2006 Edinburgh, Scotland19 Trust model of FOAF Trust Level 1 Trust Level 2

20. May 23, 2006IRW2006 Edinburgh, Scotland20 Rated relationship model Trust Value: 0.9 * 0.4 = 0.36 Trust Level: 2

21. May 23, 2006IRW2006 Edinburgh, Scotland21 FilmTrust (related research) FilmTrust: http://trust.mindswap.org/FilmTrust

22. May 23, 2006IRW2006 Edinburgh, Scotland22 Complex situation

23. May 23, 2006IRW2006 Edinburgh, Scotland23 Layered model

24. May 23, 2006IRW2006 Edinburgh, Scotland24 Person don’t need to make multiple identities

25. May 23, 2006IRW2006 Edinburgh, Scotland25 Layered model

26. May 23, 2006IRW2006 Edinburgh, Scotland26 Person need to keep one identity

27. May 23, 2006IRW2006 Edinburgh, Scotland27 Benefits Solve identity crisis by unique identity Improve propagation of information Massage filtering and ordering

28. May 23, 2006IRW2006 Edinburgh, Scotland28 FOAFRealm Single-sign-on system Based on FOAF and RDF storage P2P/HyperCuP infrastructure Semantic Social Collaborative Filtering

29. May 23, 2006IRW2006 Edinburgh, Scotland29 Bended model

30. May 23, 2006IRW2006 Edinburgh, Scotland30 Multiple dimension

31. May 23, 2006IRW2006 Edinburgh, Scotland31 Future work Fast calculation algorithm of delegated trust without privacy problem How to figure out the layers? Find meaning of conjunction among the several layers

32. May 23, 2006IRW2006 Edinburgh, Scotland32 Thank you heechul.choi@deri.org

33. May 23, 2006IRW2006 Edinburgh, Scotland33 Backup slides

34. May 23, 2006IRW2006 Edinburgh, Scotland34 Capturing trust on the web Machine-driven approaches –PageRank or eBay reputation system –Calculated as an analogy User-driven approaches –PGP, FOAFRealm –Needs efforts of user Hybrid approaches

35. May 23, 2006IRW2006 Edinburgh, Scotland35 My identities on web Privacy data and life log For writing For friends For research

36. May 23, 2006IRW2006 Edinburgh, Scotland36 Free to make a new identity

37. May 23, 2006IRW2006 Edinburgh, Scotland37 Cannot be blocked