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arXiv 1609.03076cs.RO
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具有延迟传感器测量的引导策略搜索

Guided Policy Search with Delayed Sensor Measurements

University of Washington(华盛顿大学)

Connor Schenck, Dieter Fox

摘要:

引导策略搜索是一种用于强化学习的方法,其通过用多个引导分布来引导策略的学习来训练用于完成给定任务的一般策略。引导策略搜索依赖于学习环境的底层动态模型,然后在算法的每次迭代中,使用该模型来逐步改进策略。然而,该模型通常假设环境动态是马尔可夫的,例如,仅取决于当前状态和控制信号。在本文中,我们将引导策略搜索应用到一个非马尔可夫动力学问题。具体来说,我们将其应用于从杯子中倒入碗中的精确量的液体的问题,其中许多传感器测量经历非微不足道的延迟量。我们表明,相对简单的状态增强,引导政策搜索可以扩展到非马尔可夫动力系统,其中的非马尔可夫性是由延迟传感器读数。

英文摘要:

Guided policy search is a method for reinforcement learning that trains a general policy for accomplishing a given task by guiding the learning of the policy with multiple guiding distributions. Guided policy search relies on learning an underlying dynamical model of the environment and then, at each iteration of the algorithm, using that model to gradually improve the policy. This model, though, often makes the assumption that the environment dynamics are markovian, e.g., depend only on the current state and control signal. In this paper we apply guided policy search to a problem with non-markovian dynamics. Specifically, we apply it to the problem of pouring a precise amount of liquid from a cup into a bowl, where many of the sensor measurements experience non-trivial amounts of delay. We show that, with relatively simple state augmentation, guided policy search can be extended to non-markovian dynamical systems, where the non-markovianess is caused by delayed sensor readings.

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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