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SCIENCE AT THE EDGE Friday , January 27th 2017 SATE Speaker : Mason Porter, UCLA Room 1400BPS Bldg. 11:30a.m. Title: Collective Behavior in Online Social Networks, Politicians, and Cows abstract: Complex systems of interacting entities exhibit "emergent" dynamics in the form of collective behavior. Such behavior, which can take many forms (e.g., flocking, hearding, and opinion consensus), occurs in many real and model systems, even though they are not encoded in the microscopic rules of those systems. In this talk, I'll give an introduction to collective behavior, in both model-driven and data-driven studies, with a discussion of three examples: installing applications in online social networks, voting on bills by U.S. legislators, and synchronization of cows. Michigan State University Dept. Physics and Astronomy Shawna Prater-CHRS Secretary for Astrophysics/CMP Theory POC for Physics SATE seminars/COLLOQUIUM 3261BPS, 567 Wilson Road East Lansing, MI 48824-6405 [log in to unmask]<mailto:[log in to unmask]> fax 517.432.8802 [msu]