***** To join INSNA, visit http://www.insna.org ***** Hi - The node-connectivity / cohesive blocking approach that Doug White and I have proposed similarly allows overlapping structure, so it's not a complete "blind spot"; and does so in a way where the overlap structure can be formally explicated. See: http://www2.asanet.org/journals/ASRFeb03MoodyWhite.pdf . The advantage of node-connectivity for understanding social cohesion is the clear link between diffusion-through-multiple paths and higher-orders of k-connectivity. Best, Jim -----Original Message----- From: Social Networks Discussion Forum [mailto:[log in to unmask]] On Behalf Of Balazs Vedres Sent: Sunday, January 03, 2010 6:02 AM To: [log in to unmask] Subject: Re: community identification algorithms: KliqueFinder ***** To join INSNA, visit http://www.insna.org ***** There seems to be a blindspot in sociology for overlapping groups. We used the Clique Percolation Method: http://angel.elte.hu/cfinder/ that yielded interesting theoretical benefits to specify the significance of structural folding (the overlapping of groups) for entrepreneurial recombination and generative tension. Business groups do tend to overlap a lot, and overlapping groups are better performing, but more unstable. Needless to say, you need a historical dataset to understand what cohesion means (as Simmel, Moreno, and the early theoretical school of network ties clearly saw). http://www.personal.ceu.hu/staff/Balazs_Vedres/papers/vedres.stark.folds.pdf This article appears in the January issue of AJS. _____________________________________________________________________ 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. _____________________________________________________________________ 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.