Fig. 8

The networks are better seen zoomed from the bigger version available in Additional file 1 : Appendix. The network derived after filtering nodes from Fig. 7. Edges width encode the number of common topics. Red edges represent connections between Japanese and foreign politicians (otherwise blue). Nodescolor correspond to the different Louvain clusters, from which we notice the Japanese (center in orange) and the international politicians (top in green). National politicians with strong ‘foreign’ links are circled in purple, and foreign politicians with strong ‘national’ links in dark red