Research On The Formation Mechanism And Evolutionary Situation Awareness Of Microblog Opinion Clusters

Today,with the rapid innovation of Internet technology,the rapid development of new media and the rapid growth of the number of network users have formed the current complex and changeable network public opinion ecological environment.Compared with the network environment at the end of 1990 s,the beginning of this century and now,the popularity of the Internet and the surge in the number of users have led to a large number of people from all walks of life and with different qualities pouring into the network world,resulting in the overall characteristics of users showing low age and low quality.However,China's social structure is pyramid shaped,and the population with low education level and low civilization quality accounts for a large proportion.Therefore,when the network is popularized to the whole social class,the civilized behavior of a few high-quality population is diluted,resulting in the deterioration of the network environment.Microblog is the most important social platform in China.The spread of network public opinion on microblog has the characteristics of wide range,fast speed and great influence.A large number of users express their opinions on various social events on microblog platform,which constitutes the network public opinion.Therefore,in-depth analysis of the formation and evolution of network public opinion in microblog platform is conducive to the timely control of the development of anomie public opinion by relevant departments and guide the correct direction of microblog public opinion,which is of great significance to the stable development of network ecological environment.The individual opinion of public opinion audience is formed based on the individual's position,concept,cognitive level and other thinking mode,which has a strong subjectivity.In the process of the formation of individual opinion,affected by their opinion guidance ability,the public opinion audience who have similar or identical views on social events will spontaneously coordinate their own views,so as to form a group view that can reflect the wisdom of the group,But different people will have different perception and understanding of the same thing.A large number of Internet public opinion audiences who hold opposite views will take other groups' views as anchor points or judgment footholds to form other groups' views.In the network public opinion space based on a certain social event,the interaction,interaction and evolution between individuals contribute to the emergence of several mainstream views on the event.The abstract conceptualization of the mainstream group views can be considered as a cluster structure,that is,each view cluster is composed of a large number of similar individual views through the guiding effect to form a more stable structure.Since the aggregation of opinions in the network public opinion space can be regarded as a cluster structure abstractly,a large number of opinion aggregation bodies with the same or similar positions and reflecting various attribute states can be regarded as opinion clusters.The theoretical construction and empirical research based on the concept of opinion cluster is of great significance for quickly perceiving the development trend of online public opinion and saving the control cost of online public opinion.Opinion clusters are formed due to the occurrence of events,and also evolve with the development of events.The continuous evolution in time dimension represents the change of attitude of network public opinion audience towards events.The spread of a large number of negative opinions will have an impact on the network information ecological environment.Therefore,this paper explores the formation of microblog opinion clusters,the largest social platform in China,and puts forward some suggestions on strengthening the comprehensive management of the network It is of great theoretical significance to build Qinglang cyberspace.At the same time,the awareness of the evolution trend of microblog opinion clusters is helpful to find out the group views in line with the people's mainstream values,and the correct and effective guidance is in line with the current party's requirements of "establishing an all media communication system with content construction as the foundation,advanced technology as the support,and innovation management as the guarantee",which has important practical significance.At present,there are few researches on the formation mechanism and evolution situation awareness of opinion clusters.There is no clear definition of the concept and connotation of opinion clusters.The research on opinion evolution mainly combines psychology and social network from the micro and technical aspects.There is no theoretical analysis and perception practice on the evolution situation of opinion clusters from the macro perspective.Therefore,based on communication science,informatics,information science,statistics,computer science and other disciplines,this paper discusses the formation mechanism and evolutionary situation awareness of microblog opinion clusters relying on viewpoint dynamics and evolutionary game theory.This paper will analyze the public opinion clusters from the aspects of characteristics,attributes and connotation,analyze the formation process and mechanism of microblog public opinion clusters,and construct the measurement model of microblog public opinion clusters,and measure the polarity,volume,structure and density of microblog public opinion clusters by using natural language processing,emotion analysis and regression analysis Based on the theory of situation awareness,this paper constructs the micro blog public opinion cluster evolution situation awareness model,and verifies the applicability and operability of the model through empirical research.This paper hopes to carry out in-depth research on the formation mechanism and evolution situation awareness of microblog opinion clusters from the perspective of theory and practice,trying to improve the monitoring and identification system of network public opinion evolution,and enrich the basic theory and practical application research of network public opinion.The main contents of this paper are as followsThe first chapter is introduction.This chapter first discusses the background,theory and practical significance of the formation mechanism and evolution of microblog opinion clusters,and then combs the literature of network opinion,opinion mining,opinion evolution and situation awareness,and summarizes the current research hotspots and status at home and abroad.Finally,this paper describes the research content,research methods,technical route,and summarizes the innovation.The second chapter,the relevant theoretical basis.In this chapter,the basic theory and technical methods of network public opinion,information dissemination,group view,view evolution are elaborated,and the application value and practicability of this paper are analyzed.The third chapter analyzes the concept,attribute characteristics and formation stage of microblog opinion cluster.This paper defines the concept,connotation and extension of microblog opinion clusters,analyzes the characteristics of microblog opinion clusters,including the dynamic stability,continuous concealment,stage evolution and heterogeneous communication of opinion clusters,and defines the five inherent attributes of opinion clusters,including polarity,scale,information content,selection power and popularity The content of this chapter will be the theoretical basis for the formation mechanism analysis of microblog opinion clusters.The fourth chapter is the formation mechanism of microblog opinion cluster.This chapter mainly analyzes the formation mechanism of microblog opinion clusters,analyzes the formation motivation of opinion clusters based on viewpoint dynamics,comprehensively analyzes the formation process of opinion clusters from the formation of five attributes of opinion clusters,and summarizes the formation dynamic elements of microblog opinion clusters according to the commonness of the formation process,which is the basis of the formation mechanism analysis of microblog opinion clusters Finally,the relationship between the elements of opinion cluster and mechanism,the relationship between the formation process and mechanism,and the relationship between mechanisms are elaborated.The fifth chapter is the construction of microblog opinion cluster measurement model.Firstly,the objective,originality and process of public opinion cluster measurement are clarified,and the necessity of cluster measurement in this study is explained.Secondly,the polarity,scale,information content,selection power and heat attributes of microblog public opinion cluster are measured by using Python language through sentiment analysis,LDA model,CNN neural network and other technical means,as a follow-up analysis of the evolution trend of opinion cluster The mathematical basis of analysis.The sixth chapter is the analysis of evolution situation awareness of microblog opinion cluster.At the beginning of this chapter,the relationship between cluster measurement and evolutionary situation awareness is explained,and the necessity of the previous research is clarified.Based on the situation awareness theory,the concept and purpose of micro blog opinion cluster evolutionary situation awareness are analyzed.According to the situation awareness theory,the opinion cluster evolutionary situation awareness model group is analyzed,and the process of opinion cluster evolutionary situation awareness is elaborated,and then the opinion cluster evolutionary situation awareness is constructed Situational awareness model group,using Python language,through text similarity analysis,LSTM neural network and other methods,constructs microblog opinion cluster evolution situation element extraction model,opinion cluster evolution situation understanding model,opinion cluster evolution situation prediction model.The evolutionary situation awareness model is based on situational awareness theory,and the primary task of evolutionary situation awareness is to determine the concept Then,according to the types of attributes,the evolution situation classification elements are divided and the classification criteria are constructed,and the evolution situation level of opinion clusters is divided into four levels: red,orange,yellow and blue.Finally,according to the evolution situation understanding results,the evolution situation of microblog opinion clusters is predicted,which will provide technical means for the empirical research in the future.The seventh chapter,empirical research.This chapter takes "Zhai Tianlin How Net event" as the empirical research object,and tests the public opinion cluster measurement model group and evolutionary situation awareness model group in the previous study to verify the effectiveness and applicability of the model.The eighth chapter,based on the opinion cluster evolution situation awareness of micro blog public opinion evolution risk disposal strategies and suggestions.Based on the results of view cluster evolution situation awareness,this chapter puts forward targeted and effective disposal strategies for four levels of red,orange,yellow and blue.For view clusters with high evolution situation level,it takes emergency response measures such as cutting off communication and source control,while for view clusters with low evolution situation level,it takes active guidance and accurate push Long term treatment means.According to the research content of this paper,combined with the actual situation,this paper puts forward some suggestions for the problems existing in the process of risk disposal of microblog opinion cluster evolution.The ninth chapter,summary and prospect.This chapter summarizes the research content and results of this paper,analyzes the shortcomings of the research and the follow-up research plan.The formation mechanism analysis and evolutionary situation awareness of microblog opinion clusters are the premise of network public opinion crisis early warning.By combining the advantages of multi disciplines,the evolutionary situation awareness of microblog opinion clusters can be applied to reality,which provides new ideas and methods for network public opinion evolution early warning and control.