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arXiv 2005.10381cs.ROcs.AI
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机器人中的无意识MDP

MDPs with Unawareness in Robotics

Nan Rong, Joseph Y. Halpern, Ashutosh Saxena

摘要:

我们使用连续的MDP和在连续时间间隔内发生的动作来形式化机器人和自动控制中的决策问题。然后,我们近似连续MDP使用越来越精细的离散化。这样做会产生一个系统族,每个系统都有一个非常大的动作空间,尽管只有少数动作是“有趣的”。我们可以认为决策者不知道哪些行为是“有趣的”。我们可以使用MDPU来对此进行建模,MDPs具有无意识,其中动作空间要小得多。正如我们所展示的,MDPU可以用作机器人问题中学习任务的通用框架。我们证明了一个连续的任务在一个MDPU学习一个接近最优的政策的难度的结果。我们将这些想法应用到让一个人形机器人自己学习如何走路的问题上。

英文摘要:

We formalize decision-making problems in robotics and automated control using continuous MDPs and actions that take place over continuous time intervals. We then approximate the continuous MDP using finer and finer discretizations. Doing this results in a family of systems, each of which has an extremely large action space, although only a few actions are "interesting". We can view the decision maker as being unaware of which actions are "interesting". We can model this using MDPUs, MDPs with unawareness, where the action space is much smaller. As we show, MDPUs can be used as a general framework for learning tasks in robotic problems. We prove results on the difficulty of learning a near-optimal policy in an an MDPU for a continuous task. We apply these ideas to the problem of having a humanoid robot learn on its own how to walk.

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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