Predicting human mobility through the assimilation of social media traces into mobility models
Data Science Laboratory, ISI Foundation, Turin, Italy
* e-mail: email@example.com
Accepted: 13 October 2016
Published online: 21 October 2016
Predicting human mobility flows at different spatial scales is challenged by the heterogeneity of individual trajectories and the multi-scale nature of transportation networks. As vast amounts of digital traces of human behaviour become available, an opportunity arises to improve mobility models by integrating into them proxy data on mobility collected by a variety of digital platforms and location-aware services. Here we propose a hybrid model of human mobility that integrates a large-scale publicly available dataset from a popular photo-sharing system with the classical gravity model, under a stacked regression procedure. We validate the performance and generalizability of our approach using two ground-truth datasets on air travel and daily commuting in the United States: using two different cross-validation schemes we show that the hybrid model affords enhanced mobility prediction at both spatial scales.
Key words: human mobility / machine learning / predictive models / geolocalized data
© Beiró et al., 2016