Multi-Objective Reinforcement Learning for Infectious Disease Control with Application to COVID-19 Spread
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Severe infectious diseases such as the novel coronavirus (COVID-19) pose a huge threat to public health. Stringent control measures, such as school closures and stay-at-home orders, while having significant effects, also bring huge economic losses. A crucial question for policymakers around the world is how to make the trade-off and implement the appropriate interventions. In this work, we propose a Multi-Objective Reinforcement Learning framework to facilitate the data-driven decision making and minimize the long-term overall cost. Specifically, at each decision point, a Bayesian epidemiological model is first learned as the environment model, and then we use the proposed model-based multi-objective planning algorithm to find a set of Pareto-optimal policies. This framework, combined with the prediction bands for each policy, provides a real-time decision support tool for policymakers. The application is demonstrated with the spread of COVID-19 in China.
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