Public Opinion Evolution and Communication Stages in Complex Network

Nowadays, online public opinion is developing rapidly and has a great influence. If it is not guided in time, it will easily endanger the stability of society. Therefore, this paper focused on building a network public opinion dissemination model, and analyzed the evolution law of public opinion dissemination at different stages, so as to help the government do a good job of public opinion prevention and intervention to build a good network environment. This paper took the hot event of “the Fukushima nuclear wastewater” as an example, drawn the evolution curve of public opinion by fitting the collected data, and divided the development of public opinion into three stages, and researched their network structure and public opinion diffusion law respectively. Research shows that the process of public opinion dissemination can be divided into three stages: incubation period, diffusion period, and recession period. In different stages, the network structure has different characteristics.