This week we focus specifically on 2-mode data, by which we mean affiliation data such as persons attending events, actors belonging to associations, and so on. We would not normally consider romantic ties between men and women as 2-mode data. It is not the fact that we can find a categorical attribute that distinguishes one set of nodes from another that makes 2-mode data. Rather, it is that the tie is one of correspondence (typically participation or membership) between individuals actors and collectives.
Supplementary Readings (optional)
Everett, MG, and Borgatti, SP 2013. The dual-projection approach for two-mode networks. Social Networks 34(2):204-210. [pdf]
Borgatti, S.P. and Halgin, D. In press. “Analyzing Affiliation Networks”. In Carrington, P. and Scott, J. (eds) The Sage Handbook of Social Network Analysis. Sage Publications [pdf]
Additional Resources
Old Slides & Video
analyzing 2-mode data.pdf
Bibliographies
R.L. Breiger and P.E. Pattison. 1986. "Cumulated Social Roles: The Duality of
Persons and Their Algebras," Social Networks 8 : 215-256
King-To Yeung, “The Duality of Persons and Relationships.” Social Forces 2005.
Georg Simmel, "How is Society Possible?" (pp. 6-22), "The Problem of Sociology" (pp.
23-35), and possibly "Group Expansion and the Development of Individuality" (pp. 251-
93) in Donald Levine (ed.), Georg Simmel on Individuality and Social Forms.
R.L. Breiger, “The Duality of Persons and Groups,” Social Forces 53 (1974): 181-90
(reprinted in Wellman and Berkowitz, Social Structures, 83-98).
Peter S. Bearman, "The Social Structure of Suicide," Sociological Forum 6 (1991): 501-
524.
Phillip Bonacich, Annie Cody Holdren, and Michael Johnston, “Hyper-Edges and
Multidimensional Centrality.” Social Networks 26 (2004): 189-203.
Thomas J. Fararo and Patrick Doreian, “Tripartite Structural Analysis: Generalizing the
Breiger-Wilson Formalism.” Social Networks 6 (1984): 141-175.