突發(fā)事件下基于SIRS模型的網絡情感傳播研究
[Abstract]:In recent years, with the rapid development of the Internet, the number of Internet users has become more and more, resulting in a large number of public opinion information flooded in the cyberspace, these public opinion information profoundly affect the psychology and behavior of Internet users. In particular, the frequent occurrence of network emergencies results in people being influenced by the public opinion on the Internet, either positive or negative, which are easily polarized under the influence of network groups. Therefore, if the behavior of individual Internet users is influenced by negative polarization, it will result in serious social consequences. Therefore, it is of great significance for enterprises and governments to grasp the emotional trend of Internet users and adopt corresponding guiding strategies. Based on the SIRS model, this paper analyzes the key influencing factors of emotional communication, taking Wei Zexi's network event in 2016 as an example, collecting relevant data, using Gephi software to generate the propagation network model first, and then using Netlogo software. Python language is used to simulate the model. By combining emotional and central mining indexes, key nodes can be found, and then the selected target immune strategy can be used to immune the model. The specific research contents include the following three aspects: 1. Through expounding the mechanism of information dissemination, analyzing the relationship between information and emotion, eliciting the generation mechanism of emotion and the communication mechanism of emotion, combining the two. This paper adopts the method of graph theory modeling, based on social network, collects some Weibo's data, establishes the transmission network of emotion. 2. Based on the SIRS model, and according to the characteristics of social network, two parameters, birth rate and recovery loss rate, are added. And the stability type of the model is proved by using Lyapunov stability law. By changing the values of each parameter, observing the effect on the proportion of infected people, and finally determining that the immune rate and recovery loss rate are the key factors affecting the number of infected people. 3. According to the conclusion of Chapter 4, We know that immune rate and recovery loss rate are the key factors to affect the effect of emotional transmission. In Chapter 5, we use the corresponding immune strategy to immune nodes in the network, and compare the three immune strategies and one improved immune strategy. The target immunization strategy is the best. Finally, the key nodes are excavated by combining the emotional index with the central index, and the immune effects are compared.
【學位授予單位】:杭州電子科技大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:G206
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