社交网络“意见典范”及其趋同性——基于LSA的微博用户分析

Social Network"Opinion Model"and Its Convergence-Analysis of Microblog Users Based on LSA

在开放、自主的社交网络系统及其用户内容生产中,用户是否走向相似与同化,以及在何种条件下走向相似与同化,是潜藏于社会化媒体中的异化风险。本文提出和探讨社交网络信息生产中“意见典范”的理论内涵及其趋同性,结合微博实证数据和LSA等研究手段加以分析,有助于丰富从内容模因到用户模因、从意见领袖到意见典范的研究视域延拓。用户作为意见典范的程度越高,则其相似于k个同典范度层级用户的程度也越高;用户作为意见典范的程度越高,则其趋同于顶部最高“意见典范”的程度也越高;任意两个意见典范之间的互典范程度和这两者的典范度之和成正相关。在意见典范作用传导和扩散至全局的条件下,全体用户相似于某意见典范的程度和该用户的典范度成正比,表现出社交网络趋向于意见典范的用户同化与增长的社会窄化。

In the open and autonomous social network system and its user generated content,whether and under what conditions the users will move towards the convergence of similarity and assimilation is the alienation risk hidden in social media.This paper proposes and discusses the theoretical connotation of"opinion model"in the production and dissemination of social network information,and analyzes it with microblog empirical data and LSA,which is helpful to enrich the research horizon extension from content meme to user meme,from opinion leader to opinion model.The higher the degree of users as opinion models,the higher their degree of similarity to K users of the same canonical level;the higher the degree of users as opinion models,the higher the degree of similarity to the top highest opinion model;The degree of mutual typicality between any two opinion models is positively correlated with the sum of the two.The role of opinion model is transmitted and diffused to the whole system,and the degree of all users similar to a cer-tain opinion model is directly proportional to the degree of the user's para-digm,which shows that the social network tends to be assimilation of opinion model and growth of social narrowing.