Dynamic Trust Model Based on Perceived Risk

At present, more and more people use the Internet to transact. In order to be successful transactions, it is need to establish a certain trust relationship between people In order to manage the trust relationship, trust model have been proposed. Based on the past trust model, a Dynamic Trust Model based on Perceived Risk is given in the paper. The perceived risk is divided into six dimensions under the peer environment according to this trust model. And use perceived risk and other factors to conclude the ultimate trust. The ultimate trust will be the basis to determine whether a transaction is carried out. The simulation which there are malicious users and deceive user in the transaction shows that this model can effectively improve the success rate of e-commerce transactions, thus reducing the loss of users.