Figure 2.

Hub assignment. The overlap between date hubs (DHs) and party hubs (PHs) in the two data sets; DIP and FYI. In FYI there are 108 PHs and 91 DHs (middle circle), of which 23 DHs and 20 PHs have connectivities below the hub threshold (k < 8) in DIP. Most of the FYI PHs (66) were confirmed as PHs in the DIP set, while 22 fell below the PCC cutoff (see Materials and methods). Furthermore, while most of the FYI DHs retained their DH status using DIP, a small fraction of the FYI DHs (6) were classified as PHs. Finally, 234 and 129 previously unclassified hubs were assigned as DHs and PHs in DIP.