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Trust Management for the Semantic Web

Trust Management for the Semantic Web. Paper Review by: Boanerges Aleman-Meza CSCI 8350 – Enterprise Integration Semantic Web Course Large Scale Distributed Information Systems (LSDIS) Lab. Essentials. How can information be trusted? anyone can publish anything

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Trust Management for the Semantic Web

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  1. Trust Management for the Semantic Web Paper Review by: Boanerges Aleman-Meza CSCI 8350 – Enterprise Integration Semantic Web Course Large Scale Distributed Information Systems (LSDIS) Lab Paper Review: “Trust Management for the Semantic Web“ – M. Richardson, R. Agrawal, P. Domingos. ISWC 2003

  2. Essentials • How can information be trusted? • anyone can publish anything • many users, many statements • How to assign credibility to statements and/or users in an automatical and scalable manner Paper Review: “Trust Management for the Semantic Web“ – M. Richardson, R. Agrawal, P. Domingos. ISWC 2003

  3. Trust • Examples of trust • epinions • ebay • Levels of trust • Site (or user): CNN vs. NPR vs. Fox • Statement: “Howard quit PresidentialRace” Paper Review: “Trust Management for the Semantic Web“ – M. Richardson, R. Agrawal, P. Domingos. ISWC 2003

  4. Web of Trust i Paper Review: “Trust Management for the Semantic Web“ – M. Richardson, R. Agrawal, P. Domingos. ISWC 2003

  5. Assumptions • Each user specifies a small set of users she or he trusts • Local neighbors help in determining trust of distant neighbors Paper Review: “Trust Management for the Semantic Web“ – M. Richardson, R. Agrawal, P. Domingos. ISWC 2003

  6. Web of Trust 0.8 B 0.6 Statement i A C 1.0 0.48 • User trust: value 0 . . 1 • An user is: • trustworthy • credible • shares common interest • belief: value 0 . . 1 • An statement is: • accurate • credible • relevant Paper Review: “Trust Management for the Semantic Web“ – M. Richardson, R. Agrawal, P. Domingos. ISWC 2003

  7. Web of Trust 0.8 B 0.6 Statement i A C 1.0 0.48 • Scalability Goal: • compute trust of ‘A’ based on local information Paper Review: “Trust Management for the Semantic Web“ – M. Richardson, R. Agrawal, P. Domingos. ISWC 2003

  8. Critique • Is a user trustworthy in everything he/she says? • Dimensions of trust, dimensions of belief • Aggregation: maximum? Really? Paper Review: “Trust Management for the Semantic Web“ – M. Richardson, R. Agrawal, P. Domingos. ISWC 2003

  9. Reference [1] Matthew Richardson, Rakesh Agrawal, and Pedro Domingos (2003). "Trust Management for the Semantic Web," Proceedings of the Second International Semantic Web Conference, Sanibel Island, FL, 2003 Paper Review: “Trust Management for the Semantic Web“ – M. Richardson, R. Agrawal, P. Domingos. ISWC 2003

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