Before revision:  Finally, we show that the polymer non-backtracking walks reveal the compartmental structure in single cell Hi-C maps. The found clusters have similar sizes with the domains from the population data and differ in the gene density  , corroborating biological significance of the partition into active and inactive compartments .
After revision:  We test various operators on real data and conclude that the sizes of the non-backtracking single cell domains are most close to the sizes of compartments from the population data and differ in the gene density , corroborating biological significance of the partition into active and inactive compartments .