
820 CHAPTER 26. SOCIAL NETWORKS
Figure 26.13 A two-mode network with straight-line edges drawn between attribute ta-
bles of the two node sets, and its one-mode projections drawn with curved edges on the
sides (reproduced from [SJUS08]).
lines (2-level drawings) or, more generally, in separable regions. As usual, graph drawing
research in this area has focused on conditions under which the resulting drawings can be
made planar [Bie98, BKM98, CSW04, DGGL08] and on the difficulty of crossing minimiza-
tion [ZSE05]. It would be interesting to identify criteria for informative visualization of
bipartite graphs.
An example of several methods combining ideas ...