Study On Topic Evolution Model Of Internet Public Opinion

Internet public opinion is the new concept coming with the development of Internet. It can most directly and rapidly reflect the status and development trend of all levels of society’s public opinion. And it produces a growing impact and influence on all sectors of society. At present, internet public opinion has caught the attention of scholars of different disciplines. The evolution process of netizens’ opinions about Internet topic is the important component of the evolution of Internet public opinion. At the same time, it has important influence on the development trend of Internet public opinion. Doing research about the general process and influence factors of the evolution of Internet public opinion, and exploring its the mechanism of action can provide the government with some theoretical support and guidance method for network public opinion monitoring and prediction. All of these actions have strong practical significance. The main research content is divided into the following three aspects:First of all, on the base of analyzing the general process of topic evolution, this paper summarizes the netizens’ individual and group behavior during the process of topic evolution. At the same time, considering the complexity of the process of topic evolution, this paper analyzes the influence factors during the process of topic evolution qualitatively.Secondly, based on the micro-blog network, considering the network structure is dynamic, an evolution model of Internet public opinion viewpoint based on dynamic network is proposed in this paper. The simulation result shows the following conclusions. The self-confident degree will influence the evolution of public opinion; The celebrity users in micro-blog network can generate a far-reaching influence on other users; The existence of celebrity not only expands the propagation range of public opinion topic, but also promotes the participation enthusiasm of netizens in public opinion.Finally, considering the participants in the topic evolution of Internet public opinion both have netizens and medium, this paper proposes the topic evolution model of internet public opinion under the influence of media. The simulation result shows the following conclusions. The influence of media can quicken the Internet public opinion transmission speed, shorten the evolution relaxation time, and increase the opinion positivity of netizens.