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Mason A. Porter : Communities in Networks

Networks (graphs) arise pervasively in biology, physics, technology, the social sciences, and myriad other areas. They typically exhibit a complicated mixture of random and structured features. Over the past several years, my collaborators and I have conducted several studies of cohesive mesoscopic structures known as "communities," which consist of groups of nodes that are closely related. In this talk, I will discuss the idea of network community structure and discuss results my collaborators and I have obtained using networks constructed from data such as Facebook friendships, Congressional committee assignments and voting/legislation cosponsorship, and NCAA football schedules. arXiv.org:0902.3788

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