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Mao W, Zhang K, Zhu R, Simchi-Levi D, Basar T.  2021.  Is Model-Free Learning Nearly Optimal for Non-Stationary RL? ICML 2021.

Cheung W.C, Simchi-Levi D, Zhu R.  2020.  Hedging the Drift: Learning to Optimize under Non-Stationarity. Management Science—Special Issue on Data-Driven Prescriptive Analytics.

Cheung W.C, Simchi-Levi D., Zhu R.  2020.  Reinforcement Learning for Non-Stationary Markov Decision Processes: The Blessing of (More) Optimism. ICML 2020.

Cheung W.C, Simchi-Levi D, Zhu R.  2019.  Learning to Optimize under Non-Stationarity. AISTATS 2019.