Abstract:

Opinion leaders are the core participants of the social Q&A platform. It is significant for the development of social Q&A platform to explore the social and knowledgesharing behavior characteristics of opinion leaders in the knowledge sharing process. This study set the hot topic “artificial intelligence” in Zhihu as research sample. And the information of active people were collected to analyze the characteristics of opinion leaders in the aspects of society, information behavior and knowledge interaction quantitative and social network analysis. Characteristics of social Q&A platform opinion leaders seem to be as follows:(1) as individuals, they are social elites with solid professional knowledge, highend professional practical experience and active network sharing consciousness; (2) as groups, opinion leaders have close relationship with each other in different domains, and the mutual concerning relationship tends to be advantageous, which means there are “opinion leaders” in the opinion leaders; (3) as for knowledge interaction, opinion leaders have growth and liquidity, and the liquidity relies on the topics' professionalism and readers' orientation.

Key words: Social Q&A platform, Knowledge sharing, Behavior characteristics, Opinion leaders, Zhihu; , Social network relationship