Selecting Trustworthy Content Using Tags
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How to offer digital content to mobile users by combining tagging with reputation systems
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Selecting Trustworthy Content Using Tags
- 1. U C L daniele quercia & licia capra & valentina zanardi
- 2. I’m doing my PhD @
- 3. U niversity C ollege L ondon
- 4. <MobiSys>
- 5. We research distributed sys
- 6. We blog mobblog ucl
- 7. Web 2.0 (mobile: $22.4bn)
- 8. Location?
- 9. The next big thing!
- 11. $8.1 bn
- 12. $8.1 bn
- 13. This talk is about tools for...
- 14. Consuming content on the move
- 15. Content Creation: By publishers?
- 18. People
- 22. create a ...
- 23. Digital Tapestry
- 26. Why?
- 27. Money!
- 28. Making Money? No, short of ideas!
- 29. Wisdom of the (Programming)Crowd
- 30. API
- 31. wired freedom by APIs
- 34. What if...
- 35. Consume: centralized decentralized
- 37. Existing Tools for Internet
- 38. Tools for decentralized consumption
- 39. <1> Query matching <2> Ratings for sources
- 45. similarity(query,item) query item
- 46. similarity(query,item) query item Coverage (digg out content) + Accuracy (no good content) -
- 47. Idea behind SocialRanking [RecSys08] Social Ranking:Finding Relevant Content in Web 2.0
- 51. issuer tagger similarity(issuer,tagger) Coverage (digg out content) Accuracy (good content) + +
- 53. <2> Ratings for sources
- 54. Store & Use & Categories
- 55. Store & Use & Categories
- 56. How to store ratings?
- 57. 1.Log (credentials) 2. Gossip (to check each credential)
- 58. 1.Log (credentials) 2. Gossip (to check each credential) Impractical
- 59. Idea behind MobiRate [Ubicomp08] MobiRate: Making Mobile Raters Stick to their Word
- 60. 1.Sealed Log (of credentials) 2. Gossip (to check seals only)
- 61. 1.Sealed Log (of credentials) 2. Gossip (to check seals only) Practical
- 63. Security: It outperforms existing solutions
- 64. “ heaviest” protocol runs < 2sec
- 65. “ longest” protocol completed in 2.5ms (if Bluetooth 100kb/s)
- 66. Store & Use & Categories
- 67. Use ratings to make predictions
- 70. Idea behind LDTP [ICDM07] Lightweight Distributed Trust Propagation
- 71. Daniele Quercia 1 ? A B C 2
- 72. Daniele Quercia 1 ? A B C 2 ? new graph f 1 2 A B A C C B
- 73. Daniele Quercia 1 ? A B C 2 ? new graph “ good” rating function f 1 2 A B A C C B
- 75. Daniele Quercia Useful? Tested on real data (Advogato: > 55K user ratings)
- 76. Daniele Quercia Useful? Tested on real data (Advogato: > 55K user ratings)
- 77. Daniele Quercia Fast and “Light”?
- 79. Store & Use & Categories
- 80. Greek Coins Roman Coins Coins Chairs Antiques universal ontology
- 81. Idea behind TRULLO [MobiQuitous07] TRULLO - local trust bootstrapping for ubiquitous devices
- 88. Daniele Quercia Nokia 3230
- 89. Daniele Quercia
- 90. Daniele Quercia
- 91. Store & Use & Categories
- 93. Issues: many!
- 95. Issue 2: Privacy
- 96. If you are looking for Kinky boots
- 97. whether you are …
- 98. a woman…
- 99. or a man a woman…
- 100. Thorny problem:
- 101. … or a woman… How to keep it secret
- 102. Issue 2: Privacy
- 104. All this on ... mobblog ucl