Memorias de investigación
Communications at congresses:
Detecting seasonal migrations with mobile phone data
Year:2018

Research Areas
  • Physics chemical and mathematical

Information
Abstract
Agriculture workers in Senegal represent over 70% of its labor force. The seasonal nature of an agriculture-based economy implies the alternation of periods of higher and lower laboral activity, which triggers the seasonal migration of workers. We have been able to detect mobility patterns that seem to be associated to these phenomena. In particular, we have found an increase of the number of migrants throughout the country during the harvest season. In order to do that we have built a special kind of mobility networks that we call migration networks. In a migration network the nodes are locations that, depending on the scale, can correspond to cities, districts, regions, etc. By looking at the times and places from which a user makes her calls, we can infer the location that corresponds to her regular residence, as well as detect if she has changed her residence for a signiticant period of time; that is, if she has migrated, and where. This second location corresponds to her temporary residence. The links of the migration network are directed and traced from usual residence nodes to temporary residence nodes. This has enabled us to show the influence of the harvest season on the migration flows and study the impact of religious events on the trajectories networks.
International
Si
Congress
Ninth International Conference on Complex Systems (ICCS 2018) [https://necsi.edu/iccs-2018]
960
Place
Cambridge (USA)
Reviewers
Si
ISBN/ISSN
CDP08UPM
Start Date
22/07/2018
End Date
27/07/2018
From page
1
To page
1
Ninth International Conference on Complex Systems-ICCS 2018. Abstracts [https://necsi.edu/iccs-2018-abstracts]
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Sistemas Complejos
  • Centro o Instituto I+D+i: Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios Medioambientales (CEIGRAM). Centro Mixto UPM-AGROMUTUA-ENESA
  • Departamento: Matemática Aplicada
  • Departamento: Ingeniería Agroforestal