[IEEE 2013 IEEE/WIC/ACM International Joint Conferences on Web Intelligence (WI) and Intelligent Agent Technologies (IAT) - Atlanta, GA, USA (2013.11.17-2013.11.20)] 2013 IEEE/WIC/ACM International Joint Conferences on Web Intelligence (WI) and Intelligent Agent Technologies (IAT) - The Impact of Social Diversity and Dynamic Influence Propagation for Identifying Influencers in Social Networks