Figure 8
From: Tracing patterns and shapes in remittance and migration networks via persistent homology
Cycles in the toy example. Figures (a)–(d) show the 1-cyles for the toy example. The nodes are colored red if the sum of the weights of all outgoing edges is larger than that of incoming edges, and blue otherwise. Deeper colors represent larger numbers. The shape of a node indicates whether it is a source or sink (circle) or not (square). The edges follow a coloring spectrum of red for the smallest edge weight in the network to blue for the largest. Figures (e)–(f) show the two 2-cycles in the toy example. The directed triangles are colored according to the weight of the edge that completes the triangle