arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.05795cs.LGcs.AIstat.ML
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不完全噪声观测下POMDPs的鲁棒强化学习

Robust Reinforcement Learning in POMDPs with Incomplete and Noisy Observations

Nanjing University of Aeronautics and Astronautics(南京航空航天大学)

Yuhui Wang, Hao He, Xiaoyang Tan

摘要:

在现实世界的场景中,具有连续控制的强化学习的观测数据通常是有噪声的,并且其中一部分可能随着时间的推移而动态丢失,这违反了许多当前为此开发的方法的假设。在部分可观测马尔可夫决策过程(POMDP)的框架内,采用基于模型的方法,利用新提出的具有局部逼近的替代损失函数,从不完全和噪声观测中估计过渡模型,并借助信念估算学习策略和价值函数.对于后者的目的,生成模型的构建和无缝地纳入POMDP的信念更新过程,这使得强大的执行,即使在显着的不完整性和噪声。所提出的方法的有效性进行了验证的基准任务的集合,表明我们的方法优于几个比较的方法在各种具有挑战性的情况下。

英文摘要:

In real-world scenarios, the observation data for reinforcement learning with continuous control is commonly noisy and part of it may be dynamically missing over time, which violates the assumption of many current methods developed for this. We addressed the issue within the framework of partially observable Markov Decision Process (POMDP) using a model-based method, in which the transition model is estimated from the incomplete and noisy observations using a newly proposed surrogate loss function with local approximation, while the policy and value function is learned with the help of belief imputation. For the latter purpose, a generative model is constructed and is seamlessly incorporated into the belief updating procedure of POMDP, which enables robust execution even under a significant incompleteness and noise. The effectiveness of the proposed method is verified on a collection of benchmark tasks, showing that our approach outperforms several compared methods under various challenging scenarios.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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