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Human diffusion and city influence

AuthorsLenormand, Maxime ; Gonçalves, Bruno; Tugores, Maria Antonia ; Ramasco, José J.
KeywordsCity–city interaction
Networks: Human mobility
Geolocated data
Issue Date15-Jul-2015
PublisherRoyal Society (Great Britain)
CitationJournal of the Royal Society Interface 12(109): (2015)
Abstract© 2015 The Author(s) Published by the Royal Society. All rights reserved. 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.
Publisher version (URL)http://dx.doi.org/10.1098/rsif.2015.0473
Identifiersissn: 1742-5662
Appears in Collections:(IFISC) Artículos
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