Fig. 8

State Lumping Example for a single physical node (\(\nu _1\)). Two possible lumpings \({\mathcal {M}}'\) and \({\mathcal {M}}''\) are visualised here over the state nodes (grey nodes) with the physical node mapped over (dotted circles surrounding state nodes). Here each lump merges the two most similar state nodes based on feature vectors capturing local visitation probabilities of \(k=2\) network steps