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T1  - The Impact of Covid-19 on Smartphone Usage 
SN  -  /  
UR  - http://hdl.handle.net/10138/336963 
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A1  - Li, Tong; Zhang, Mingyang; Li, Yong; Lagerspetz, Eemil; Tarkoma, Sasu; Hui, Pan 
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PB  -  
Y1  - 2021 
LA  - eng 
AB  - The outbreak of Covid-19 changed the world as well as human behavior. In this article, we study the impact of Covid-19 on smartphone usage. We gather smartphone usage records from a global data collection platform called Carat, including the usage of mobile users in North America from November 2019 to April 2020. We then conduct the first study on the differences in smartphone usage across the outbreak of Covid-19. We discover that Covid-19 leads to a decrease in users' smartphone engagement and... 
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KW  - 113 Computer and information sciences; COVID-19; Wireless fidelity; Correlation; Data collection; North America; Batteries; Sensors; Correlations; Covid-19; outbreak stage inference; smartphone usage 
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