Fig. 7

Multiplex network structure at 12 different time slices. Here, the red (first) layer corresponds to re-tweets, green (second) layer to mentions, and the third (blue) to responses in the considered Twitter social network (Omodei et al. 2015). Note that for demonstration purposes, we visualized only first 12 slices of 1,000 time points. Notable changes in response dynamics can be observed (blue networks and line)—spikes in activity can be seen well in network time slices. Such changes of network density can be studied to better understand complex social dynamics