Researchon Information Transmission Control Technologyin Community Network

The popularity of online social network has promoted the research of network information dissemination,and the research on the law of communication and control has become more and more important especially about the rumor information dissemination.The research shows that the community network is more in line with the characteristics of the social network.The study of the law of information dissemination on the community network and the corresponding immune control strategy has become an important content in the field of complex networks.At present,the SEIR model is used to analyze the propagation characteristics of the information in four states of the nodes by susceptibility,latency,infection and immunity.However,the assumption that the model is equal to the propagation probability of network nodes in unit time is inconsistent with the propagation nature of the actual social network.This paper holds that the degree of intimacy between individuals and the times of rumors reception influence the information propagation probability.In addition,the immune node has a certain inhibitory effect on the spread of in the actual situation.Based on these two points,an improved model of rumor propagation PSEIR is proposed in this paper.The model is simulated on the scale-free network.We analyses the main factors influencing the spread of information.Compared with the traditional model of information dissemination,the results show that the PSEIR model can reflect the propagation of information in social network very well.Community structure has an important significance to the spread and control of rumor information,but the existence of a variety of immune strategies has ignored the impact of community characteristics in the dissemination of information.In this paper,a comprehensive immune control strategy is proposed.In the community,the influence of nodes was integrated into the classic integrated immunization strategy and we immunes bridge nodes to control the dissemination of information among communities.By constructing an ideal community network,we simulate the evolution of the spread of rumors before and after the immunization process.What is more,the comparative analysis shows that the immunization strategy proposed in this paper can achieve control effect without the need to know the global information of the network.