“…Notably, among the top 13 authors, Dickinson, J. E., Cherrett, T., Davies, N., Norgate, S., and Speed, C. have a very close cooperative relationship. They studied the application or role of smartphone apps in travel [23,[40][41][42][43] and tourism social networks [22]. Wang, D. and Xiang, Z. also have a relatively stable cooperative relationship.…”