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Structural and Dynamical Patterns on Online Social Networks: The Spanish May 15th Movement as a Case Study

Figure 2

Cumulative in- and out-strength distributions.

Strength distributions for both received (top) and sent (bottom) messages display a power-law behavior as early as at . The fat-tailed distributions indicate that the 15M network is scale-free, with the implications this fact bears. Note that the exponents that define the power-laws differ significantly between sent and received messages.

Figure 2