Figure 2

Cascade size distributions and seed attributes. Upper panels: cascade size distributions for the topics under consideration (left: ‘grassroots’; right: ‘elections’). Middle panels: average spreading capability (rescaled by the system size) grouped by the connectivity of the initial seed, k. Lower panels: spreading capability grouped by the k-core of the initial spreader. For the sake of comparison, k and k-core have been rescaled by their corresponding maxima.