Fig. 1
From: Dynamic graphs, community detection, and Riemannian geometry
2-D spectral plot of graph nodes. The graph nodes are plotted as points, the contours show the magnitude of the density function, and the horizontal and vertical axes correspond to the ξ(2) and ξ(3) components, respectively. This particular plot shows two distinct communities with one node at approximately (-0.09,-0.11) that does not belong very strongly to either community and a cluster of points around (-0.07,0.05) that seems close to forming its own community