We present a data-driven optimal control approach which integrates the reported partial data with the epidemic dynamics for COVID-19. We use a basic Susceptible-Exposed-Infectious-Recovered (SEIR) model, the model parameters are time-varying and learned from the data. This approach serves to forecast the evolution of the outbreak over a relatively short time period and provide scheduled controls of the epidemic. We provide efficient numerical algorithms based on a generalized Pontryagin's Maximum Principle associated with the optimal control theory. Numerical experiments demonstrate the effective performance of the proposed model and its numerical approximations.
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Figure 1. (a) Reported and fitted cumulative infection and death cases in the US (b) Estimated SEIR parameters and the basic reproduction number. $ \beta $ ($ \mu $) corresponds to the left (right) vertical axis, $ \epsilon = 0.2 $ and $ \gamma = 0.1 $ are almost constant. The dashed line in $ R_0 $ is a zoomed-in version on the tail of the solid line
Figure 3. (a) Reported and fitted cumulative infection and death cases in the UK (b) Estimated SEIR parameters and the basic reproduction number. $ \beta $ ($ \mu $) corresponds to the left (right) vertical axis, $ \epsilon = 0.2 $ and $ \gamma = 0.1 $ are almost constant. The dashed line in $ R_0 $ is a zoomed-in version on the tail of the solid line
Figure 4. (a) Reported and fitted cumulative infection and death cases in France (b) Estimated SEIR parameters and the basic reproduction number. $ \beta $ ($ \mu $) corresponds to the left (right) vertical axis, $ \epsilon = 0.2 $ and $ \gamma = 0.1 $ are almost constant. The dashed line in $ R_0 $ is a zoomed-in version on the tail of the solid line
Figure 5. (a) Reported and fitted cumulative infection and death cases in China (b) Estimated SEIR parameters and the basic reproduction number. $ \beta $ ($ \mu $) corresponds to the left (right) vertical axis, $ \epsilon = 0.2 $ and $ \gamma = 0.2 $ are almost constant. The dashed line in $ R_0 $ is a zoomed-in version on the tail of the solid line
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(a) Reported and fitted cumulative infection and death cases in the US (b) Estimated SEIR parameters and the basic reproduction number.
Scheduled control for the US in
(a) Reported and fitted cumulative infection and death cases in the UK (b) Estimated SEIR parameters and the basic reproduction number.
(a) Reported and fitted cumulative infection and death cases in France (b) Estimated SEIR parameters and the basic reproduction number.
(a) Reported and fitted cumulative infection and death cases in China (b) Estimated SEIR parameters and the basic reproduction number.