@article{ref1,
title="Human diffusion and city influence",
journal="Journal of the Royal Society, Interface",
year="2015",
author="Lenormand, Maxime and Gonçalves, Bruno and Tugores, Antònia and Ramasco, José J.",
volume="12",
number="109",
pages="20150473-20150473",
abstract="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>",
language="en",
issn="1742-5689",
doi="10.1098/rsif.2015.0473",
url="http://dx.doi.org/10.1098/rsif.2015.0473"
}