A generic user can find a great number of on-line systems to access a huge amount of information. Unfortunately, usually there is no control about the quality of information. To deal with this issue, several trust and reputation systems have been developed in the last years, adopting several metrics as the well-known EigenTrust. In this paper we investigate on the EigenTrust dynamics, showing that it exhibits some counter-intuitive behaviors especially if compared to our common sense notion of trust, and or trustworthy people.
展开▼
