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Table 2 The results in terms of CPC of the gravity model with exponential decay (G-Exp.), the gravity model with power law decay (G-Pow.), and the radiation model (R). We report the average CPC over the entire period under analysis (μ), the maximum and minimum CPC reached, and the average CPC of the first period (i.e., before the introduction of non-pharmaceutical interventions due to COVID-19 pandemic) and the second period (i.e., during the introduction of non-pharmaceutical interventions due to COVID-19 pandemic). The model that better captures incoming international mobility is G-Exp (0.685) followed by G-Pow (0.448) and R (0.348). We also report the average IG for each model (μ IG). Number closer to 0 indicate better performances. Thus, the best performances are achieved by G-Exp. (6.183), followed by G-Pow (9.254) and, finally, the worst performances are reached by R (17.815)

From: Modeling international mobility using roaming cell phone traces during COVID-19 pandemic

 

μ CPC

max CPC

min CPC

μ CPC—P1

μ CPC—P2

μ IG

G-Exp.

0.705

0.761

0.663

0.753

0.697

6.183

G-Pow.

0.501

0.554

0.431

0.523

0.497

9.254

R

0.348

0.379

0.329

0.372

0.342

17.815