Abstract:

Nowadays network has come to pervade every aspect of our lives,and our society has become more dependent on it. As a result, the emergency of network public-opinion events is happening more and more frequently than ever before. Owing to this, the research on crowd constitution and crowd behavior of network public opinion has important theoretical and practical significance to prevent, detect, lead and control the network emergencies. In this paper, it first introduces the concepts of opinion leader, audience and crowd mind. After that the research framework, process of data acquisition and preprocessing, and cluster method are illustrated. Furthermore, the results of cluster analysis are interpreted, and the crowd behaviors in network emergence are discussed. Finally, the future study trends is discussed and developed.

Key words: Emergency, Crowd constitution, Empirical research, Cluster analysis, Crowd behavior