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Supervised pre-training for improved stability in deep reinforcement learning
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DOI：10.1016/j.icte.2021.12.015.png)
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摘要
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Deep reinforcement learning (DRL) technology has been actively studied with the recent advances in deep learning. As a result, the researchers are continuously improving performance and expanding the applications. However, recent literature reports that the performance of DRL is sensitive to the various design choices, e.g., the neural network initialization. Accordingly, it makes DRL hard to obtain a stable performance, which degrades reproducibility. Therefore, we propose a supervised pre-training method for both policy and value networks to improve stability. We pre-train the policy network to maximize the initial entropy and pre-train the value network to bias the distribution to a specific value. The experiments are conducted on tasks with discrete action space where it is hard to control the initial entropy. Through the experiments, the effectiveness of the proposed method in terms of stability and performance is validated.(c) 2021 The Author(s). Published by Elsevier B.V. on behalf of The Korean Institute of Communications and Information Sciences. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Keyword:
Deep reinforcement learning
Pre-training
Supervised learning
Maximum entropy
Stability
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