The Stanford GraphBase: a platform for combinatorial computing
The Stanford GraphBase: a platform for combinatorial computing
Immunizing online reputation reporting systems against unfair ratings and discriminatory behavior
Proceedings of the 2nd ACM conference on Electronic commerce
Managing trust in a peer-2-peer information system
Proceedings of the tenth international conference on Information and knowledge management
A reputation-based approach for choosing reliable resources in peer-to-peer networks
Proceedings of the 9th ACM conference on Computer and communications security
IPTPS '01 Revised Papers from the First International Workshop on Peer-to-Peer Systems
The Eigentrust algorithm for reputation management in P2P networks
WWW '03 Proceedings of the 12th international conference on World Wide Web
Identity Crisis: Anonymity vs. Reputation in P2P Systems
P2P '03 Proceedings of the 3rd International Conference on Peer-to-Peer Computing
Robust incentive techniques for peer-to-peer networks
EC '04 Proceedings of the 5th ACM conference on Electronic commerce
PeerTrust: Supporting Reputation-Based Trust for Peer-to-Peer Electronic Communities
IEEE Transactions on Knowledge and Data Engineering
Pride: peer-to-peer reputation infrastructure for decentralized environments
Proceedings of the 13th international World Wide Web conference on Alternate track papers & posters
TrustGuard: countering vulnerabilities in reputation management for decentralized overlay networks
WWW '05 Proceedings of the 14th international conference on World Wide Web
Sybilproof reputation mechanisms
Proceedings of the 2005 ACM SIGCOMM workshop on Economics of peer-to-peer systems
Fighting peer-to-peer SPAM and decoys with object reputation
Proceedings of the 2005 ACM SIGCOMM workshop on Economics of peer-to-peer systems
Cooperative peer groups in NICE
Computer Networks: The International Journal of Computer and Telecommunications Networking - Management in peer-to-peer systems
Experience with an object reputation system for peer-to-peer filesharing
NSDI'06 Proceedings of the 3rd conference on Networked Systems Design & Implementation - Volume 3
IEEE Communications Magazine
The design of a reliable reputation system
Electronic Commerce Research
Modeling Decentralized Reputation-Based Trust for Initial Transactions in Digital Environments
ACM Transactions on Internet Technology (TOIT)
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Reputation systems help establish social control in peer-to-peer networks. To be truly effective, however, a reputation system should counter attacks that compromise the reliability of user ratings. Existing reputation approaches either average a peer's lifetime ratings or account for rating credibility by weighing each piece of feedback by the reputation of its source. While these systems improve cooperation in a P2P network, they are extremely vulnerable to unfair ratings attacks. In this paper, we recommend that reputation systems decouple a peer's service provider reputation from its service recommender reputation, thereby, making reputations more resistant to tampering. We propose a scalable approach to system-wide decoupled service and feedback reputations and demonstrate the effectiveness of our model against previous nondecoupled reputation approaches. Our results indicate that decoupled approache significantly improves reputation accuracy, resulting in more successful transactions. Furthermore, we demonstrate the effectiveness and scalability of our decoupled approach as compared to PeerTrust, an alternative mechanism proposed for decoupled reputations. Our results are compiled from comprehensive logs collected from Maze, a large file-sharing system with over 1.4 million users supporting searches on 226TB of data.