Price trust evaluation in e-service oriented applications

Trust is a critical issue in e-commerce and e-service environments. Some applications (such as eBay) have introduced various trust management mechanisms to provide valuable information to buyers prior to placing orders and making payments. While trust has been actively studied in the research community, some malicious sellers and fraudulent transactions still widely exist. A typical attack is to entice buyers into making payments for buying items at very cheap and attractive prices and not to deliver the items or deliver the fake item after payment. This paper proposes a new trust management system that provides information to indicate to some extent the trust level of a seller at an offered price. In this paper, we describe our proposed approach for price trust evaluation and an approach for market price calculation. We also evaluated our approaches empirically.