Fig. 5: Detailed explanation of regionĀ order.

a The size of the region is controlled by adjusting the order of adjacent nodes of the central node (i.e., the order of neighbors). The figure illustrates the connection path of node 1: node 1 first associates with node 3, and then connects to node 5 through node 3, forming the second-order neighbor relationship of node 1. b Different region orders correspond to different sizes of the regionalized graph. As the order increases, the size of the graph region grows, incorporating more neighboring nodes.