Research On The Main Body Relationship Of Social Media Information Ecology Chain Based On Social Network Analysis

With the rapid development and wide application,social media has gradually become the mainstream platform for information sharing and dissemination,making the pattern of information dissemination in the traditional media changed dramatically.Although social media brings great convenience to users,it also has serious information ecological environment problems,such as information ecological pollution,false communication,vulgar information,etc.Therefore,based on the perspective of information subject,this paper uses social network analysis method to study the relationship of social media information ecological chain,and provides ideas for relevant departments to improve social media information ecological environment.First of all,the paper analyzes the existing researches on social media information ecology chain at home and abroad.Based on the existing research results,we define the connotation and characteristics of social media,social media information ecology chain and other related concepts.This paper expounds the coordination theory,information ecology chain theory and social network analysis theory,and makes a detailed analysis of the information subject relationship of social media information ecology chain,so as to build a theoretical model of subject relationship,including the dominant position of the core body in the information ecological chain and the synergy of the information subject in the chain.Secondly,the paper makes an empirical analysis of the research model,and mainly selects the hot topic of " 19 th CPC National Congress " as the research case of sina micro-blog.Analysis of micro-blog data,including micro-blog content,micro-blog user properties and micro-blog behavior attributes.Using social network analysis tools to study the relationship between Weibo users,and the key indicators used are described:(1)determine the core of social network through the degree centrality and the network centric potential,that is,identify the opinion leaders in the information ecology chain of social media.(2)use the core periphery model to identify the position of opinion leaders in the social media information ecosystem chain.(3)use density to study the degree of closeness between general information subjects.(4)use cohesive subgroup to analyze the existence of small group phenomenon between common information subjects in social media.The analysis results show that the information subject in the social media information ecological chain is closely related and interactive,and there is a small group phenomenon,and the core main body plays the role of guiding and controlling the information transmission in the information ecological chain.Finally,according to the results of the previous empirical analysis and the analysis of the specific content of the social network,the countermeasures and suggestions for the main relationship of the social media information ecological chain are put forward: strengthen the information literacy education of the various subjects,enhance the control ability of the core subjects,strengthen the interdependence in the information ecological chain,and establish the cooperative concept of all the information subjects.