Acknowledgements
The international workshop on ‘Advances in supernetwork modelling and mobility pattern analysis’ and this special issue were jointly supported by a research grant from the Research Grants Council of the Hong Kong Special Administrative Region (Project No. PolyU 152095/17E) and the NSFC-EU joint research project (NSFC no. 71961137001, NWO no. 438-18-401).
Disclosure statement
No potential conflict of interest was reported by the author(s).