Models of core/periphery structuresSocial Networks (2000)
AbstractA common but informal notion in social network analysis and other fields is the concept of a core/periphery structure. The intuitive conception entails a dense, cohesive core and a sparse, unconnected periphery. This paper seeks to formalize the intuitive notion of a core/periphery structure and suggests algorithms for detecting this structure, along with statistical tests for testing a priori hypotheses. Different models are presented for different kinds of graphs (directed and undirected, valued and nonvalued). In addition, the close relation of the continuous models developed to certain centrality measures is discussed.
Publication DateOctober, 2000
Citation InformationStephen P. Borgatti and Martin G. Everett. "Models of core/periphery structures" Social Networks Vol. 21 Iss. 4 (2000)
Available at: http://works.bepress.com/steveborgatti/15/