Collins Conference Room
  US Mountain Time
Fang-Yi Yu (University of Michigan)

Our campus is closed to the public for this event.

Abstract:  We aggregate information, make decisions, and form opinions through interactions on social networks. In this talk, I will share some of my work on how community structures affect social contagions and opinion formations on social networks.

We study a complex contagion model on graphs with community structures. We prove that assigning all initially infected agents to a single community is the optimal seeding strategy to maximize the span of contagion. In opinion formation, we consider how community structures affect time to reach a consensus and show a sharp threshold property depending on community structures.

Research Collaboration
SFI Host: 
Mirta Galesic

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