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Figure 3: Comparing empirical results with simulation results. Figure 3(a)–3(c) with black color are the same in Figure 1(a)–1(c). Figure 3(d)–3(f) with red color are the simulation results on the KC network. Figure 3(g)–3(i) with green color are the simulation results on the BA network. Figure 3(j)–3(l) with blue color are the simulation results on the WS network.