Weibo Public Opinion Analysis Ana Response Research On Food Safety Incidents

Food is one of the most important material basis for people’s survival,and the most important thing for food is the safety issue.Under the increasingly strict supervision and management of relevant national departments,food safety is getting better and better year by year.but there are always some businesses for their own petty profits,and put the public health at the expense of,resulting in one big food safety incident after another,take milk food as an example,2001 soy milk poisoning incident,Substandard milk powder and "big-head Baby" incident in 2004,"Leather milk" incident and Nestle milk powder accused of exceeding iodine standards in 2005,whole milk powder incident in 2007,melamine-tainted milk powder incident in 2008,gelatin incident in the aged yogurt industry in 2012...Every event has triggered heated discussion in the whole society.As the platform of Weibo plays an increasingly important role in the communication and evolution of public opinion events,it has multiplied the publicity effect for positive events.Similarly,it has exponential diffusion influence on negative events.If the public opinion of this kind of event is handled improperly,it will cause adverse effects,Even very serious national security threats to food security concerns are growing,but there is a slight lack of public opinion research on food safety on Weibo.In order to accurately understand the demands of Internet users,protection of consumer rights,analysis of the important aspects of business and government response,it is necessary to study the focus and tendency of Internet users to express on Weibo with the development of food safety incidents,as well as the characteristics of social networks in the development process.In this paper,Mequel propylene glycol event,which has a great impact in the field of food safety in 2022,is selected as a platform to spread information.Weibo shows the whole development of this event.With the development of this event,the behaviors and attitudes of media,government,netizens and companies have changed completely.The time range is almost two months from the end of June to the end of August.The research content of this paper mainly includes:the research status of Weibo public opinion text analysis and social association network analysis;Public opinion and food safety related concepts and theoretical basis;Weibo public opinion text analysis of Metel propylene glycol event;Weibo public opinion and social network analysis of Metel propylene glycol event;Micro blog public opinion response strategy of Mytel propylene glycol event.This paper uses text analysis method to analyze microblog content.Firstly,python is used to crawl microblog platform about Mequel propylene glycol event,including microblog ID,user ID,user name,microblog content,number of forwarding,number of comments,number of likes,release time,and type of microblog account,and carry out python data cleaning and manually delete irrelevant microblog.Secondly,the public opinion event is divided into five stages according to the daily post volume.Again,new words were discovered,word frequency statistics were made,and word list was made.Finally,the user type distribution map,word cloud map and emotion analysis chart were drawn at each stage,and then the focus of attention and emotion attitude of netizens at different stages of the development of public opinion events were analyzed.The article also uses social network analysis method,which is as follows:Based on the microblog obtained above,the user name of the author and comment forwarding author at each stage is obtained,which is taken as node and comment forwarding relationship as edge,and imported into the social network analysis tool Gephi.Import it into Gephi in the form of Excel,form the required visualization chart,click on each indicator in the statistics bar for comparative analysis,Through the above analysis,Compare the characteristics and key figures of social networks in different stages of the development of public opinion,so as to achieve the role of controlling and guiding public opinion.Based on the above method,this paper analyzes the Weibo public opinion of the Meltel propylene glycol event,and summarizes the problems in the development process of the event from the perspectives of the vertical development stage of the event,the horizontal media,the government,netizens,opinion leaders and enterprises.The main problems are the lack of proper official guidance of public opinion during the gestation period and the failure of enterprises to timely placate the public opinion during the outbreak period.Microblog opinion leaders fail to form separate information interaction,and netizens are highly subjective and emotional,etc.The government should strengthen monitoring of public opinion,enterprises should timely explain facts at the beginning of public opinion,opinion leaders should be objective and neutral in issuing microblogs,netizens should think rationally to avoid following suit,and the media should correctly guide public opinion by using agenda setting function.