A Systematic Survey of Opinion Leader in Online Social Network

In the current scenario, the online social network plays an important role in decision support system and for diffusion of product. In such type of networks, some people have significant influence over other's personal behavior and decision-making process. These persons can be considered as opinion leader or influencer who not only influence the person's attitude on many issues such as educational, political, social etc. but also has the capability to gain the trust from other people. The goal of this paper is to describe the various characteristics of opinion leader and also describe the various domain in which they slog efficiently. This paper also presents the various research work to identify the opinion leader in the social network.