Topic Relevance of Public Health Emergencies Influence on Internet Public Opinion Resonance: Simulation Based on Langevin’s Equation

Abstract

Public health emergencies occurred frequently, which usually result in the negative Internet public opinion events. In the complex network information ecological environment, multiple public opinion events may be aggregated to generate public opinion resonance due to the topic category, the mutual correlation of the subject involved, and the compound accumulation of specific emotions. In order to reveal the phenomenon and regulations of the public opinion resonance, we firstly analyze the influence factors of the Internet public opinion events in the public health emergencies. Then, based on Langevin’s equation, we propose the Internet public opinion stochastic resonance model considering the topic relevance. Furthermore, three exact public health emergencies in China are provided to reveal the regulations of evoked events “revival” caused by original events. We observe that the Langevin stochastic resonance model considering topic relevance can effectively reveal the resonance phenomenon of Internet public opinion caused by public health emergencies. For the original model without considering the topic relevance, the new model is more sensitive. Meanwhile, it is found that the degree of topic relevance between public health emergencies has a significant positive correlation with the intensity of Internet public opinion resonance.

Application of empathy theory in the study of the effectiveness and timeliness of information dissemination in regional public health events

“…Online public opinion events regarding public health emergencies are especially prevalent in the realm of social media. Since 2018, China has made it clear that public health incidents should be managed in the common good and in a model of coordinated governance by multiple entities and regions ( 18 ). Even so, there are many difficulties in responding to sudden regional public health events ( 19 ).…”

Cooperation Behavior of Opinion Leaders and Official Media on the Governance of Negative Public Opinion in the Context of the Epidemic: An Evolutionary Game Analysis in the Perspective of Prospect Theory

“…Lan et al explored the efects of raising the upper growth limit for Internet rumors on user sentiment and optimized the logistic population growth model to investigate changes in network public opinion, which ofers a theoretical framework for online public opinion prediction [9]. Based on Langevin's equation, Cheng et al studied the phenomenon and law of resonance of online public opinion triggered by the frequency of public health emergencies [10]. Xie et al used text mining techniques, such as latent Dirichlet allocation (LDA), topic modeling, and sentiment analysis, to examine the data in order to comprehend the public reaction to COVID-19 on Weibo [11].…”

“…Te smaller the propagation threshold is, the more benefcial it is to control the spread of public opinion. Te propagation threshold R 0 � Aacz 2 /a(αx 1 + cz 1 )βy 1 (αx 1 + cz 1 ) can be obtained from equation (10). Proposition 17.…”

Research on Civic and Political Education and Economic Development in the Age of Digital Economy

“…On the one hand, digital media have enriched the content and enhanced students' participation and interactivity [11]. On the other hand, the complexity of cyberspace also brings new difficulties to ideological and political education, such as the diversity of online public opinion and the difficulty of distinguishing the truth and falsehood of information [12][13][14]. This requires ideological and political education to pay more attention to the use of information technology on the basis of traditional teaching methods to improve the relevance and effectiveness of education while guiding students to establish correct network concepts and values [15][16].…”