Trust Metrics and their evaluation

Trust metrics and their evaluation.

Abstract
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Introduction
There has been quite a lot of research about trust metric and reputation systems recently since they promise to let users to have a quick first impression about the trustworthiness of every other unknown user. For example most of the success of eBay is to be placed on its reputation system: users are allowed to express a feedback about another user after a transaction with her. Ebay aggregates this info and show the feedbacks received by every single user (see Figure x), this simple information is able to make the difference between a total stranger and a user with which a user is willing to start an economic transaction, i.e. it is able to move the perceived risk below the minimum accepted risk threshold.

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There have been many proposals of trust metrics recently but there is no agreed way of evaluating them. In this paper we propose some bla bla bla.

Moreover there are no easily available datasets in which different trust metrics can be compared. bla bla bla. The goal of our "Trust Metrics wiki" project is, among others, to fulfill this void. bla bla bla