Group colocation behavior in technological social networks

Brown, Chloë [Computer Laboratory. University of Cambridge] Lathia, Neal [Computer Laboratory. University of Cambridge] Mascolo, Cecilia [Computer Laboratory. University of Cambridge] Noulas, Anastasios [Lancaster University] Blondel, Vincent [UCL]

We analyze two large datasets from technological networks with location and social data: user location records from an online location-based social networking service, and anonymized telecommunications data from a European cellphone operator, in order to investigate the differences between individual and group behavior with respect to physical location. We discover agreements between the two datasets: firstly, that individuals are more likely to meet with one friend at a place they have not visited before, but tend to meet at familiar locations when with a larger group. We also find that groups of individuals are more likely to meet at places that their other friends have visited, and that the type of a place strongly affects the propensity for groups to meet there. These differences between group and solo mobility has potential technological applications, for example, in venue recommendation in location-based social networks.