TrustDavis: A Non-Exploitable Online Reputation System
>We present TrustDavis, an online reputation system that provides insurance against trade fraud by leveraging existing relationships between players, such as the ones present in social networks. Using TrustDavis and a simple strategy, an honest player can set an upper bound on the losses caused by any malicious collusion of players.
> In addition, TrustDavis incents participants to accurately rate each other, resists participants’ pseudonym changes, and is inherently distributed