Survey on Opinion Leader in Social Network using Data Mining

Online Social Network (OSN) is an online virtual community which helps people from anywhere to connect, share their views, ideas with each other and express themselves without any restrictions on social networks. Sometimes, in such kind of network one person's view or idea can make an impact on another person. Hence OSNs plays a significant role in the behavior and decision making of a person. The person that can make an impact, help or influence another person in any kind of issue is we call an opinion leader (OL). It has become essential to identify an opinion leader for different benefits among society. In this paper, we have shown the need and features of an opinion leader. This study also shows the different methods to identify an opinion leader in and some recent research in the area of data mining techniques to find an opinion leader in the OSN.