Rumors Spread And Traceable Models Of Complex Social Net- Work

With the development of the Internet, all kinds of social networks have sprung, became an integral part of people’s daily life and work. Social networks facilitate contact between people, information transfer small price, high degree of freedom, but also led to a large number of unconfirmed information in the network wantonly spread, that is the spreading of rumors. Rumors can not only mislead people to judge, affect the development of market economy, but also affect the stability of the social order.Therefore, based on complex network theory to study the characteristics and regularity of rumors spread on social network, establish an effective traceability model, for effectively control the rumor spread problem has great important significance.This article analyzed the characteristics of the rumors spread on social networks, combined with the SIR of the virus spread model, to establish an I-CSR model for rumor. The people of network were classified into three categories:credulity, disseminators and rational person, and define the relationship between the three node spread, to make it more realistic social network rumor spreading characteristics. Through the node degrees of different sizes, the initial transmission nodes can be divided into celebrity users and ordinary users. And using MATLAB software for different types of nodes initial rumors spread simulation, simulation results showed that the size of the initial transmission node degree, have an impact on the spread of rumors and spread early period, but will not affect the overall trend of the spread of rumors.Based on the definition of effective distance, rumor spread the traceability model is established. The perspective of effective distance is think that the dynamic process of rumor by a group of the most effective trajectory to lead. According to the definition and perspective of effective distance, we have established a traceability model for rumor, and to determine the node as the initial spread node by potential source node to other nodes in the minimum effective distance of the mean and variance portfolio. Using MATLAB simulation software, the different types of initial spread nodes are simulated in the different network scale. Simulation analysis it is concluded that the initial transmission node for celebrity users accuracy has a high accuracy than ordinary users, and both the network scale and the selection way of the initial node all have no relation to the traceability accuracy. But rumors traceable correct rate in the range of 65% to 80% fluctuation, and this rate is consistent with the proper scope of the existing rumors traceable accuracy proved this method effective traceability. Based on the effectiveness of traceability model for practical rumor incident as a case analysis. And, for example, proposals have been given to deal with the food industry rumor.