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- W3124532183 abstract "We approach the continuous-time mean-variance (MV) portfolio selection with reinforcement learning (RL). The problem is to achieve the best tradeoff between exploration and exploitation, and is formulated as an entropy-regularized, relaxed stochastic control problem. We prove that the optimal feedback policy for this problem must be Gaussian, with time-decaying variance. We then establish connections between the entropy-regularized MV and the classical MV, including the solvability equivalence and the convergence as exploration weighting parameter decays to zero. Finally, we prove a policy improvement theorem, based on which we devise an implementable RL algorithm. We find that our algorithm outperforms both an adaptive control based method and a deep neural networks based algorithm by a large margin in our simulations." @default.
- W3124532183 created "2021-02-01" @default.
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- W3124532183 date "2019-05-01" @default.
- W3124532183 modified "2023-09-27" @default.
- W3124532183 title "Continuous-Time Mean-Variance Portfolio Selection: A Reinforcement Learning Framework" @default.
- W3124532183 hasPublicationYear "2019" @default.
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