INVESTIGADORES
DI MURO Matias Alberto
congresos y reuniones científicas
Título:
Availability, Interoperability, Robustness and Recovery of Interdependent Networks under WMD Attack
Autor/es:
STANLEY, H.E.; DI MURO, M.A.; LA ROCCA. C. E; HAVLIN. S; BRAUNSTEIN, L.A.
Lugar:
Springfield
Reunión:
Conferencia; DTRA Basic Research Technical Review; 2016
Resumen:
Recent network research has focused on the cascading failures in a system of interdependent networks and the necessary preconditions for system collapse. An important question that has not been addressed is how to repair a failing system before it suffers total breakdown. Here we introduce a recovery strategy for nodes and develop an analytic and numerical framework for studying the concurrent failure and recovery of a system of interdependent networks based on an efficient and practically reasonable strategy. Our strategy consists of repairing a fraction of failed nodes, with probability of recovery γ, that are neighbors of the largest connected component of each constituent network. We find that, for a given initial failure of a fraction 1 − p of nodes, there is a critical probability of recovery above which the cascade is halted and the system fully restores to its initial state and below which the system abruptly collapses. As a consequence we find in the plane γ − p of the phase diagram three distinct phases. A phase in which the system never collapses without being restored, another phase in which the recovery strategy avoids the breakdown, and a phase in which even the repairing process cannot prevent system collapse.