| The rapid development of modern media technologies which are based on the Internet is actively changing the mode of dissemination,dissemination,and dissemination of information.On this basis,a public opinion field is forming and becoming stronger in which the general public expressed their opinions.Hegel pointed out that “there are all kinds of errors and truths in public opinion”,so the study of the public opinion field is important for the construction of the entire media society.In the field of communication,the construction of national image is also an important topic.Both China and America occupy an important position in the world,so the relationship between this two countries has become an important factor affecting the country's political policies.In the reports of mainstream media,the national image of America has always been a poewrful country with great political and economic power.There have certain differences with the national image of America in the public opinion field.Therefore,the research on the construction of the US national image in the public opinion field not only can we understand how American national image is constructed in the public opinion field,but it can also provide effective information for the public mainstream media in China to effectively monitor the public opinion and guide the public opinion,as well as communication inspiration.This article first explains the importance of the construction of the two public opinion fields and the national image,then clarifies the reasons and significance why we choose Weibo as the social media platform based on the relevance of this two parts.In addition,the method of social science calculation was introduced into the data processing process,and the results of the research were intuitively displayed using techniques of data extraction,text sentiment analysis,and information visualization.This article divides the construction of the national image into three parts,based on the construction of elements,based on sentiment trends,and based on main body who disseminate the information,from a variety of angles studying the process and laws of national image construction meticulous and comprehensive.Combining the visual design of information and the multiple interaction design of information retrieval,the laws and results of the research are well presented.Finally,on the basis of these data explorations,we summarize the propagation characteristics,discover problems,then combine propagation theory in communication science,take disseminate subjects,disseminate content,disseminate channels,disseminate audiences,and disseminate results as entry points to find a more effective propaganda strategie.We hope to better understand American national image in the public opinion field,and provide guidance and effective support for official media to better guide public opinion and formulate official policies. |
