Figure 1
From: Locating multiple diffusion sources in time varying networks from sparse observations
Illustration of proposed framework to locate multiple diffusion sources in time varying networks. (a) A simple directed time varying network where the numbers associated with the edges denote the activation time, where node b is the source and self loops are specified by the nonzero diagonal elements of matrix A. (b) Static mapping of the network in (a), where each layer corresponds to an activation time. The diffusion direction is from top to bottom (from t = 0 to t = 2), while observations occur in the opposite direction. (c) An independent path from observing messenger node a, where the observable range is NOR({a}) = 2. (d) Two independent paths from observing nodes a and d. The network is fully observable (NOR({a,d}) = 4) and sources are fully locatable.
