Memorias de investigación
Research Publications in journals:
Identifying seasonal mobility profiles from anonymized and aggregated mobile phone data. Application in food security
Year:2018

Research Areas
  • Electronic technology and of the communications

Information
Abstract
We propose a framework for the systematic analysis of mobile phone data to identify relevant mobility profiles in a population. The proposed framework allows finding distinct human mobility profiles based on the digital trace of mobile phone users characterized by a Matrix of Individual Trajectories (IT-Matrix). This matrix gathers a consistent and regularized description of individual trajectories that enables multi-scale representations along time and space, which can be used to extract aggregated indicators such as a dynamic multi-scale population count. Unsupervised clustering of individual trajectories generates mobility profiles (clusters of similar individual trajectories) which characterize relevant group behaviors preserving optimal aggregation levels for detailed and privacy-secured mobility characterization. The application of the proposed framework is illustrated by analyzing fully anonymized data on human mobility from mobile phones in Senegal at the arrondissement level over a calendar year. The analysis of monthly mobility patterns at the livelihood zone resolution resulted in the discovery and characterization of seasonal mobility profiles related with economic activities, agricultural calendars and rainfalls. The use of these mobility profiles could support the timely identification of mobility changes in vulnerable populations in response to external shocks (such as natural disasters, civil conflicts or sudden increases of food prices) to monitor food security.
International
Si
JCR
Si
Title
Plos One
ISBN
1932-6203
Impact factor JCR
2,766
Impact info
Volume
13
10.1371/journal.pone.0195714
Journal number
4
From page
e0195714
To page
20
Month
ABRIL
Ranking
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Sistemas Dinámicos, Aprendizaje y Control (SISDAC)
  • Grupo de Investigación: Tecnología de imágenes biomédicas
  • Departamento: Ingeniería Electrónica