title: A Generalized Radiation Model for Human Mobility: Spatial Scale, Searching Direction and Trip Constraint.
abstract: We generalized the recently introduced "radiation model", as an analog to the generalization of the classic "gravity model", to consolidate its nature of universality for modeling diverse mobility systems. By imposing the appropriate scaling exponent λ, normalization factor κ and system constraints including searching direction and trip OD constraint, the generalized radiation model accurately captures real human movements in various scenarios and spatial scales, including two different countries and four different cities. Our analytical results also indicated that the generalized radiation model outperformed alternative mobility models in various empirical analyses.
authors.affiliation: School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, Hubei, China.
authors.forename: Chaogui
authors.initials: C
authors.lastname: Kang
authors.affiliation: Institute of Remote Sensing and Geographical Information Systems, Peking University, Beijing, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Department of Geography, University of South Carolina, Columbia, South Carolina, United States of America.
authors.forename: Diansheng
authors.initials: D
authors.lastname: Guo
authors.affiliation: School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, Hubei, China.|Collaborative Innovation Center of Geospatial Technology, Wuhan University, Wuhan, Hubei, China.
authors.forename: Kun
authors.initials: K
authors.lastname: Qin
mesh_terms: D000465:Algorithms; D008962:Models, Theoretical; D015203:Reproducibility of Results