Fig. 2From: EpiTracer - an algorithm for identifying epicenters in condition-specific biological networksIllustration of ripple centrality. a Node Acl is the source of highly active paths, and has high closeness centrality. However it can only reach 4 nodes, and is not a good epicenter. b Node Aor can reach 14 nodes, but paths originating at Aor have low activity. Thus it is not a good epicenter. c Node Arc is the source of highly active paths and can reach a large number of nodes (7), making it the best candidate for an epicenter. The hexagon represents candidate epicentersBack to article page