Leveraging Mobile Phone Data for Migration Flows
- URL: http://arxiv.org/abs/2105.14956v1
- Date: Mon, 31 May 2021 13:41:47 GMT
- Title: Leveraging Mobile Phone Data for Migration Flows
- Authors: Massimiliano Luca, Gianni Barlacchi, Nuria Oliver, Bruno Lepri
- Abstract summary: Statistics on migration flows are often derived from census data, which suffer from intrinsic limitations.
Alternative data sources, such as surveys and field observations, also suffer from reliability, costs, and scale limitations.
The ubiquity of mobile phones enables an accurate and efficient collection of up-to-date data related to migration.
- Score: 5.0161988361764775
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Statistics on migration flows are often derived from census data, which
suffer from intrinsic limitations, including costs and infrequent sampling.
When censuses are used, there is typically a time gap - up to a few years -
between the data collection process and the computation and publication of
relevant statistics. This gap is a significant drawback for the analysis of a
phenomenon that is continuously and rapidly changing. Alternative data sources,
such as surveys and field observations, also suffer from reliability, costs,
and scale limitations. The ubiquity of mobile phones enables an accurate and
efficient collection of up-to-date data related to migration. Indeed, passively
collected data by the mobile network infrastructure via aggregated,
pseudonymized Call Detail Records (CDRs) is of great value to understand human
migrations. Through the analysis of mobile phone data, we can shed light on the
mobility patterns of migrants, detect spontaneous settlements and understand
the daily habits, levels of integration, and human connections of such
vulnerable social groups. This Chapter discusses the importance of leveraging
mobile phone data as an alternative data source to gather precious and
previously unavailable insights on various aspects of migration. Also, we
highlight pending challenges that would need to be addressed before we can
effectively benefit from the availability of mobile phone data to help make
better decisions that would ultimately improve millions of people's lives.
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