Coevolution model for public opinion information based on coupling network

With the rapid development of internet technology, the netizens have taken an unprecedentedly active role in speech. Meanwhile, public opinion has established an increasingly close relationship between on-line virtual society and off-line real society and the single channel can no longer describe the actual dissemination process completely. Therefore, this paper constructs the coevolution model for public opinion information in the doublelayered coupling network, uses Price network model and WS network model to simulate on-line/off-line network layers respectively, establishes one-To-one correspondence between the nodes by means of assortative connection between the layers and analyzes the on-line/off-line coevolution process of public opinion information on this basis. The experiment result shows that the public opinion information has a higher dissemination efficiency and speed in the double-layered network structure during the same time. The users' initial probability of acceptance α will affect the effective rate of dissemination of information to a certain extent. Whenα 0.3 , the information coverage rate in double-layered network rises rapidly with the increase of α, which is especially significant in Price directed scale-free network structure and when α >0.3, the information coverage rate gradually becomes stable and nearly the same.