Fig. 4
From: Mapping change in higher-order networks with multilevel and overlapping communities
Multilevel organization of science, 2001–2007. The journals organize into five large research fields, further divided into research areas. We show the top-level organization of earth sciences, economics, and computer science (the three small modules at the top), and the finer division into research fields for the physical and life sciences. The fields or areas are sorted by their citation flow and show the top-ranking journal in each research field or area. Finally, we highlight the insignificant assignment of journals clustered with Ecology in 2001 to a significantly distinct research field since 2003. At the top level shown in the inset, the same journals cluster significantly with the life sciences since 2007