TY  - JOUR
PY  - 2015//
TI  - Human diffusion and city influence
JO  - Journal of the Royal Society, Interface
A1  - Lenormand, Maxime
A1  - Gonçalves, Bruno
A1  - Tugores, Antònia
A1  - Ramasco, José J.
SP  - 20150473
EP  - 20150473
VL  - 12
IS  - 109
N2  - Cities are characterized by concentrating population, economic activity and services. However, not all cities are equal and a natural hierarchy at local, regional or global scales spontaneously emerges. In this work, we introduce a method to quantify city influence using geolocated tweets to characterize human mobility. Rome and Paris appear consistently as the cities attracting most diverse visitors. The ratio between locals and non-local visitors turns out to be fundamental for a city to truly be global. Focusing only on urban residents' mobility flows, a city-to-city network can be constructed. This network allows us to analyse centrality measures at different scales. New York and London play a central role on the global scale, while urban rankings suffer substantial changes if the focus is set at a regional level.<p />  <p>Language: en</p>
LA  - en
SN  - 1742-5689
UR  - http://dx.doi.org/10.1098/rsif.2015.0473
ID  - ref1
ER  -