Figure 4

A scatter plot of the core-periphery scores with different colors for bots, suspended users and humans, for the network of retweets among users the day before the election. The histograms on the bottom and left of the scatter plot show the marginal distributions of the relevance score and participation score. While automated accounts are concentrated on lower values of presence and participation scores, suspended and genuine users have a flatter distribution, even if a peak on the lower values is still present. Bots are more inclined to retweet accounts in their community (low participation score) and moreover focus their activity on few users (low relevance score). The difference in core-periphery scores can be observed throughout the period we considered, see Appendix B for details