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***** To join INSNA, visit http://www.insna.org ***** Balazs, First you have to ask what cohesion means in dynamic data. Your formulation "common history of cohesion" would probably lead most of us to simply sum instances of dyadic contact (I take your data to be in some way episodic) to create a time-collapsed snapshot, on which standard subgroup analyses can be performed. The interesting complication is that a group can be "actually" cohesive and yet not act that way over shorter or longer periods, if you permit a distinction between latent or propensity ties and enacted ties and recognize that the latter are subject to constraints such as those considered in Gibson, David R. 2005. "Concurrency and Commitment: Network Scheduling and its Consequences for Diffusion." Journal of Mathematical Sociology 29:295-323 David Balazs Vedres wrote: > ***** To join INSNA, visit http://www.insna.org ***** > > Dear Socnetters, > > I wonder if anyone had experience with identifying cohesive groups in > dynamic network data. > How would you identify a group as a common history of cohesion rather than a > cohesive subset in a network snapshot? > > Any comments are appreciated, > > Best > Balazs > > _____________________________________________________________________ > SOCNET is a service of INSNA, the professional association for social > network researchers (http://www.insna.org). To unsubscribe, send > an email message to [log in to unmask] containing the line > UNSUBSCRIBE SOCNET in the body of the message. > -- David Gibson Assistant Professor Department of Sociology University of Pennsylvania 3718 Locust Walk Philadelphia, PA 19104-6299 http://www.soc.upenn.edu/~gibsond/ _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.