Figure 3
From: Detecting anomalous citation groups in journal networks
Sankey diagram for the classification of groups. We sequentially apply five classification criteria based on citation patterns (A–D) or the overlap of editorial board members (E). Groups are classified into categories A–D if more than 20% of within-group citations (A) come from a single paper, (B) go to a single paper, (C) come from a single author, or (D) go to a single author. For the groups that do not meet any of the criteria A–D, we classify a group into category E if its member journals have at least one overlapping editor. Otherwise, we classify it into category F.
