135731.fig.0010a
(a)
135731.fig.0010b
(b)
135731.fig.0010c
(c)
135731.fig.0010d
(d)
Figure 10: Global efficiency of (a) , (b) , (c) , and (d) under random (—+—) and targeted attacks (—·□·— closeness and —— betweenness based).