May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi...
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![Page 1: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/1.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 1
Trust Models for Community-aware
Identity Management
Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski, Katarzyna Stankiewicz,
Brain Davis, John G. Breslin
![Page 2: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/2.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 2
Identity
on the Web
![Page 3: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/3.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 3
Personal Identity
on the Web
![Page 4: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/4.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 4
Personal Identity
• Account– Blog– Email– Community sites
• Flickr• Orkut
![Page 5: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/5.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 5
One URI per one thing
![Page 6: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/6.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 6
One identity per one person
![Page 7: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/7.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 7
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
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May 23, 2006 IRW2006 Edinburgh, Scotland 8
Reason of multiple identities
• People want to know one subjectnot whole people
People don’t need unique identity
![Page 9: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/9.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 9
What is the problem?
![Page 10: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/10.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 10
Identity crisis
*Sorry, I lost the sources of images
![Page 11: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/11.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 11
To solve personal identity crisis
Objective
![Page 12: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/12.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 12
What is the important thingto analyze identity?
![Page 13: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/13.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 13
Link
From: http://www.xarxanet.org/xarxanet/novetatsDetall.xarxanet? xnt_locale=ca&xnt_portal=1&nov_novetatId=26947Page Rank
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May 23, 2006 IRW2006 Edinburgh, Scotland 14
For the personal identity
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May 23, 2006 IRW2006 Edinburgh, Scotland 15
Links
In conflict
Father Master
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May 23, 2006 IRW2006 Edinburgh, Scotland 16
Trust
• Meta-link to make links• Can be propagated
Trust Trust
Trust
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May 23, 2006 IRW2006 Edinburgh, Scotland 17
Trust
• Meta-link to make links• Can be propagated
Love Love
Love
Trust
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May 23, 2006 IRW2006 Edinburgh, Scotland 18
Give a better model of trustamong the people
Method
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May 23, 2006 IRW2006 Edinburgh, Scotland 19
Trust model of FOAF
Trust Level 1
Trust Level 2
![Page 20: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/20.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 20
Rated relationship model
Trust Value: 0.9 * 0.4 = 0.36Trust Level: 2
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May 23, 2006 IRW2006 Edinburgh, Scotland 21
FilmTrust (related research)
FilmTrust: http://trust.mindswap.org/FilmTrust
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May 23, 2006 IRW2006 Edinburgh, Scotland 22
Complex situation
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May 23, 2006 IRW2006 Edinburgh, Scotland 23
Layered model
![Page 24: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/24.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 24
Person don’t need to make multiple identities
![Page 25: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/25.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 25
Layered model
![Page 26: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/26.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 26
Person need to keep one identity
![Page 27: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/27.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 27
Benefits
• Solve identity crisis by unique identity
• Improve propagation of information• Massage filtering and ordering
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May 23, 2006 IRW2006 Edinburgh, Scotland 28
FOAFRealm
• Single-sign-on system• Based on FOAF and RDF storage• P2P/HyperCuP infrastructure• Semantic Social Collaborative
Filtering
![Page 29: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/29.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 29
Bended model
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May 23, 2006 IRW2006 Edinburgh, Scotland 30
Multiple dimension
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May 23, 2006 IRW2006 Edinburgh, Scotland 31
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
![Page 33: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/33.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 33
Backup slides
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May 23, 2006 IRW2006 Edinburgh, Scotland 34
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
![Page 35: May 23, 2006IRW2006 Edinburgh, Scotland1 Trust Models for Community-aware Identity Management Choi Hee Chul, Sebastian Ryszard Kruk, Slawomir Grzonkowski,](https://reader036.fdocuments.in/reader036/viewer/2022062722/56649f325503460f94c4ee62/html5/thumbnails/35.jpg)
May 23, 2006 IRW2006 Edinburgh, Scotland 35
My identities on web
Privacy data and life log
For writing
For friends
For research
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May 23, 2006 IRW2006 Edinburgh, Scotland 36
Free to make a new identity
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May 23, 2006 IRW2006 Edinburgh, Scotland 37
Cannot be blocked