Collins Conference Room
Seminar
  US Mountain Time

Our campus is closed to the public for this event.

Alexander "Sasha" Gutfraind (CNLS, Los Alamos National Laboratory)

Complex socioeconomic networks such as information, finance and even terrorist networks need resilience to cascades - to prevent the failure of a single node from causing a far-reaching domino effect. We show that terrorist and guerrilla networks are uniquely cascade-resilient while maintaining high performance, but they become more vulnerable beyond a certain critical point. We also introduce an optimization method for constructing networks with high passive cascade resilience. The optima networks are found to be based on cells, where each cell has a star topology. Although cascades are a grave risk to complex networks, we find that, counter-intuitively, there are conditions where networks should not be modified to stop cascades. Implementation of these findings can lead to more cascade-resilient networks in many diverse application areas.

SFI Host:  Aaron Clauset