Today’s world has entered the development of information technology and the explosive network is highly popular stage, the general public life and social communication and network connection is very close.At the same time, due to the Internet has the nature of virtual, environment openness and aging of the convenience of features, for the people provides freely anytime, anywhere, people on the Internet Dependence and trust degree increasing. The 37th China Internet development statistics report shows that as of December 2015, China’s Internet population reached 6.88 million, network in China, the popularity of the level of up to 50.3%, far beyond level in the world, the Internet impact on society as a whole has entered into a new stage.Internet has changed the way of human social interaction, and a variety of communication channels to flourish and the audience accept to more and more news and information, and the occurrence, development and change of social phenomena and the problems are with the life of the audience are closely related, as a social member of the audience has the right to express their own attitudes, views, opinions and emotions. Some social hot issues closely related to the vital interests of the people by the Internet media reports, often caused by relatively intense reaction of Internet users. With the birth of micro-blog, more and more people are called from the media, the arrival of the media in their social life has become an important way to communicate. And this information is more rolling the way, in a limited time, can affect the relative more audience. A lot of events by micro-blog users to forward comments, can cause a great disturbance in the society. Micro-blog and other Internet media has been born less than ten years, but our lives have changed so much. Micro-blog space requirements are limited (not more than 140 words), the user registration is not real name system, the release of the message becomes more random and extensive. Communication restrictions on the geographical space is greatly weakened, the instantaneous effect of the message spread greatly enhance the formation of public areas covering the whole country. Analogy to other forms of communication networks, such as blogs, microblogging in the views of the public opinion expression improves the operability, unlike the blog that require lengthy. It’s more like a conversation between people. Whether it is celebrity, or the general public, and even the bottom of the society, all of us are equal, fair, we can say that they want to share their own experience, and beyond the barrier of social class. These advantages make micro-blog become the first choice. Public access to information, the release of information, which is also involved in all aspects of social life to penetrate the field of. Micro-blog can not only become a place for people to exchange feelings, insights, but also to protect the effective weapons of the people. This paper takes the 2015 Tianjin bombings as an example to analyze, this event has occurred and the evolution in time of the obvious, major media and the broad masses of the people to participate in a high degree, all factors with strong, affecting a wide range, impact strength, belonging to the typical emergency public events, network public opinion evolution of case. This case study to analyze the law of public opinion, to provide some reference for the management of public opinion.This article is divided into five chapters. The first chapter is the introduction, which mainly explains the background and significance of this study, as well as the related concepts, and describes in detail the research methods and case design.The second chapter is the analysis of the sample of Tianjin explosion. By Python software of about Tianjin bombings of influential microblogging crawl, a certain number of samples, manual of these samples for the analysis of multi dimension, and the development of public opinion have more scientific analysis and explanation.The third chapter is on the basis of the second chapter, the elements of the evolution of public opinion on this event are analyzed. Analysis that the impact of the evolution of public opinion in Tianjin, the evolution of Internet users elements, content elements and behavioral motivation elements of these three categories. Through the analysis of these factors, we have a deeper understanding of the case.The fourth chapter is the government’s response to public opinion in the public emergencies, this chapter mainly through the analysis of the above chapters, focusing on the measures to deal with.The fifth chapter is the summary section. |