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Generating functions for message passing on weighted networks: Directed bond percolation and susceptible, infected,
Christoph Widder1, Tanja Schilling1
1Albert-Ludwigs-Universität, 79104 Freiburg im Breisgau, Germany.
Abstract:
We study the SIR (susceptible, infected, removed/recovered) model on directed graphs with heterogeneous transmission probabilities within the message-passing approximation. We characterize the percolation transition, predict cluster size distributions, and suggest vaccination strategies. All predictions are compared to numerical simulations on real networks. The percolation threshold that we predict is a rigorous lower bound to the threshold on real networks. For large, locally treelike networks, our predictions agree very well with the numerical data.
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