it is fundamentally possible to infer the location of the source by observing the information flow at only a few nodes in the network. We find that the proposed technique can perform source localization in a remarkable variety of real networks, such as the Thukela river basin in South Africa, which was affected by a large cholera outbreak in 2000.
Thursday, July 5, 2012
Uncovering the Source of Epidemics, Influence, and Ideas
LN12765 - How can we localize the source of a virus, a contamination, or even an idea in a complex network? Due to the tremendous size of many real networks---such as the Internet or the human social graph---it is usually infeasible to observe the state of all nodes in a network. In this paper, we demonstrate why and how 
it is fundamentally possible to infer the location of the source by observing the information flow at only a few nodes in the network. We find that the proposed technique can perform source localization in a remarkable variety of real networks, such as the Thukela river basin in South Africa, which was affected by a large cholera outbreak in 2000.
it is fundamentally possible to infer the location of the source by observing the information flow at only a few nodes in the network. We find that the proposed technique can perform source localization in a remarkable variety of real networks, such as the Thukela river basin in South Africa, which was affected by a large cholera outbreak in 2000.
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