Trustworthy services diffusion based on optimizational nodes in online social network

摘要

Web Service diffusion is becoming an important way of Web information share. Because of the existence of large malicious nodes and Web services in online social network, the service diffusion in social network has got great trust crisis. It hinders the sharing and reusing of services in online social network. In order to improve the credibility and the speed of service diffusion in social network, we divide the nodes into common nodes and optimizational nodes by utilizing the trustworthy relationship among social network nodes. The algorithm is designed to find optimizational trustworthy nodes which have better trust values and better diffusion characteristics. Based on the optimizational trustworthy nodes, in the case of the trust, the diffusion speed and other factors, the trusted service diffusion is achieved by the algorithm. Therefore, the trustworthy services will be quickly diffused. The results of the experiments demonstrate that the diffusion model and our algorithm are correct and effective.