Figure 7
From: Searching for superspreaders of information in real-world social media

Effect of sampling methods on kS, kin and PageRank.
Snowball sampling used for Facebook data will not change the relative ranking for kS (a), kin (b) and PageRank (c) dramatically. Meanwhile, with the activity sampling adopted in Twitter data, the ranking for kS (d), kin (e) and PageRank (f) are also not affected significantly.