Fig. 2
From: Mapping change in higher-order networks with multilevel and overlapping communities
Schematic first-order and higher-order networks and alluvial diagram representation. a A first-order network with pseudo-states (white dashed circles) matching the state nodes in c. b An alluvial diagram representation. c A higher-order network with state nodes (small blue and purple circles) in the physical nodes. We only show the state nodes whose physical nodes are present in two modules