A Critical Review of Centrality Measures in SocialNetworks
Social networks are currently gaining increasing impact especially in the light of theongoing growth of web-based services like facebook.com. A central challenge for the socialnetwork analysis is the identification of key persons within a social network. In this context,the article aims at presenting the current state of research on centrality measures for socialnetworks. In view of highly variable findings about the quality of various centralitymeasures, we also illustrate the tremendous importance of a reflected utilization of existingcentrality measures. For this purpose, the paper analyzes five common centrality measureson the basis of three simple requirements for the behavior of centrality measures....