Tracking urban human activity from mobile phone calling patterns.

Timings of human activities are marked by circadian clocks which in turn are entrained to different environmental signals. In an urban environment the presence of artificial lighting and various social cues tend to disrupt the natural entrainment with the sunlight. However, it is not completely unde...

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Main Authors: Daniel Monsivais, Asim Ghosh, Kunal Bhattacharya, Robin I M Dunbar, Kimmo Kaski
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-11-01
Series:PLoS Computational Biology
Online Access:http://europepmc.org/articles/PMC5697809?pdf=render
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author Daniel Monsivais
Asim Ghosh
Kunal Bhattacharya
Robin I M Dunbar
Kimmo Kaski
author_facet Daniel Monsivais
Asim Ghosh
Kunal Bhattacharya
Robin I M Dunbar
Kimmo Kaski
author_sort Daniel Monsivais
collection DOAJ
description Timings of human activities are marked by circadian clocks which in turn are entrained to different environmental signals. In an urban environment the presence of artificial lighting and various social cues tend to disrupt the natural entrainment with the sunlight. However, it is not completely understood to what extent this is the case. Here we exploit the large-scale data analysis techniques to study the mobile phone calling activity of people in large cities to infer the dynamics of urban daily rhythms. From the calling patterns of about 1,000,000 users spread over different cities but lying inside the same time-zone, we show that the onset and termination of the calling activity synchronizes with the east-west progression of the sun. We also find that the onset and termination of the calling activity of users follows a yearly dynamics, varying across seasons, and that its timings are entrained to solar midnight. Furthermore, we show that the average mid-sleep time of people living in urban areas depends on the age and gender of each cohort as a result of biological and social factors.
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spelling doaj.art-6ef1de18e2804362bb3e72a97d12a79b2022-12-21T18:37:25ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582017-11-011311e100582410.1371/journal.pcbi.1005824Tracking urban human activity from mobile phone calling patterns.Daniel MonsivaisAsim GhoshKunal BhattacharyaRobin I M DunbarKimmo KaskiTimings of human activities are marked by circadian clocks which in turn are entrained to different environmental signals. In an urban environment the presence of artificial lighting and various social cues tend to disrupt the natural entrainment with the sunlight. However, it is not completely understood to what extent this is the case. Here we exploit the large-scale data analysis techniques to study the mobile phone calling activity of people in large cities to infer the dynamics of urban daily rhythms. From the calling patterns of about 1,000,000 users spread over different cities but lying inside the same time-zone, we show that the onset and termination of the calling activity synchronizes with the east-west progression of the sun. We also find that the onset and termination of the calling activity of users follows a yearly dynamics, varying across seasons, and that its timings are entrained to solar midnight. Furthermore, we show that the average mid-sleep time of people living in urban areas depends on the age and gender of each cohort as a result of biological and social factors.http://europepmc.org/articles/PMC5697809?pdf=render
spellingShingle Daniel Monsivais
Asim Ghosh
Kunal Bhattacharya
Robin I M Dunbar
Kimmo Kaski
Tracking urban human activity from mobile phone calling patterns.
PLoS Computational Biology
title Tracking urban human activity from mobile phone calling patterns.
title_full Tracking urban human activity from mobile phone calling patterns.
title_fullStr Tracking urban human activity from mobile phone calling patterns.
title_full_unstemmed Tracking urban human activity from mobile phone calling patterns.
title_short Tracking urban human activity from mobile phone calling patterns.
title_sort tracking urban human activity from mobile phone calling patterns
url http://europepmc.org/articles/PMC5697809?pdf=render
work_keys_str_mv AT danielmonsivais trackingurbanhumanactivityfrommobilephonecallingpatterns
AT asimghosh trackingurbanhumanactivityfrommobilephonecallingpatterns
AT kunalbhattacharya trackingurbanhumanactivityfrommobilephonecallingpatterns
AT robinimdunbar trackingurbanhumanactivityfrommobilephonecallingpatterns
AT kimmokaski trackingurbanhumanactivityfrommobilephonecallingpatterns