Research And Implementation Of Social Network System Based On Trust Mechanism

In social networks,users try to obtain more information and services by expanding friends circle.But the traditional social networks has huge user quantity,and the users' information inaccurate,the relationship unreliable and the confidence in crisis.At the same time,the complex network structure makes it difficult to build trust with each other.These problems not only increase the difficulty to obtain reliable services from the social network circle,but also reduce the service quality.To address these problems,this paper studies the status and needs of social networks,and proposes a social network system based on trust mechanism to achieve trust services of social networks.The main work of this paper is as follows:(1)This paper designs a social network system based on trust mechanism,carries out the general description and design of the framework and presents the slicing treatment of the system architecture.Meanwhile,according to the actual needs of the user interaction,a top-down process relationship is also proposed in this paper.(2)A social network expansion model is designed to improve the credibility of the communication users and simplify the network structure.Furthermore,a contrast discrimination algorithm base on the user's feature vectors is proposed to verify the user's familiarity,with the purpose of solving the difficult problem of evaluating the direct trust in current social networks.(3)This paper studies the characteristics of complex network and the problem of trust recommendation,designs algorithms to compute user dependability,compactness and influence.Also this paper presents an algorithm to compute and search the weighted value of different paths when the recommendation of multiple trust paths is involved.While the review based dependability computation decreases compute complexity of indirect trust,the search method combining multiple-dimensional factors increases the comprehensiveness of trust recommendation.This paper makes a useful attempt to explore whether the interpersonal communication in the social network can be trusted.It expands the type of social network and provides a new way for the construction of the social network platform.