Analysis On The Acquisition And Dissemination Public Opinion Information On Weibo

With the continuous innovation of Internet technology,the current society has already entered the information age,and social networks have also been developed and popularized.It has become an important carrier for the new generation of social sentiment after the media such as newspapers,radio and television.Due to the large number of Internet users in China and the openness and freedom of information dissemination,the information dissemination activity in social networks has reached an unprecedented height.However,in the course of social hotspot events,the reports of various sectors of the society derived from the incidents and the views of netizens have also developed a proliferation and blow-out effect in this process.This phenomenon is stable to society.The stability of the country has a pivotal influence.Therefore,in-depth study of the law of the spread of public opinion events has a strong practical significance for controlling the situation of public opinion and stabilizing social security.As the main carrier for the real-time changes of the Internet public opinion information,Weibo can analyze the public opinion transmission mechanism according to the process of the microblog content being transmitted among the Weibo users.This paper starts from the public sentiment of social hotspot events,and studies the development and evolution of microblogging public opinion and the mode of communication.The main work includes the following aspects:(1)Introduce the characteristics of Sina Weibo's webpage and the current popular web crawler,design a microblog keyword crawler for microblog short text information,and use the microblogging API to obtain the application programming interface crawler.Weibo disseminates user information and analyzes the advantages and disadvantages of each of the two crawlers.(2)In view of the proliferation process of Weibo's public opinion,the PKUVIS Weibo node analysis tool was used to analyze the Weibo cases.It was found that the propagation mechanism and the infectious disease dynamics model are very similar in the proliferation situation.The dynamic model of infectious diseases was introduced to analyze the transmission mode of public opinion,and a SE-SIR(Secondary evolution-susceptible Infected Recovered Model)model of public opinion propagation was proposed based on the evolution of topics.The model was simulated and analyzed.(3)Propagation analysis of Weibo.The overall architecture and design of the public opinion system are given.The system module design includes data acquisition and text processing modules,data storage and retrieval modules,and public opinion transmission and analysis modules.Mainly achieved the propagation path analysis,propagation node analysis and propagation content analysis in the public opinion transmission analysis module,and finally tested all aspects of the system..