Vulnerability Analysis of Power Grids Using Modified Centrality Measures

Figure 10

Global efficiency of (a) 𝒢₄, (b) 𝒢₁₆, (c) 𝒢₄₈, and (d) 𝒢₅₀ under random (—+—) and targeted attacks (—·□·— closeness and —⋄— betweenness based).

(a)

(b)

(c)

(d)