arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1904.09191cs.RO
收藏

基于层次空间注意的操作技能学习

Learning Manipulation Skills Via Hierarchical Spatial Attention

Khoury College of Computer Sciences, Northeastern University(东北大学库里计算机科学学院)

Marcus Gualtieri, Robert Platt

摘要:

学习机器人操作中的可推广技能长期以来一直具有挑战性,这是由于真实世界的观察和动作空间。解决这个问题的一种方法是集中注意力--机器人学习在哪里关注它的传感器,不相关的细节被忽略。然而,这些方法在很大程度上没有流行起来,由于学习一个好的注意力策略的困难和增加的部分可观察性引起的一个狭窄的窗口的焦点。本文通过将目光约束到空间层次来解决第一个问题。对于第二个问题,我们确定了一种情况下,由注意力引起的部分可观测性不会阻止Q学习找到最优策略。最后,我们与真正的机器人实验上具有挑战性的挑选位置的任务,证明了该方法的适用性。

英文摘要:

Learning generalizable skills in robotic manipulation has long been challenging due to real-world sized observation and action spaces. One method for addressing this problem is attention focus -- the robot learns where to attend its sensors and irrelevant details are ignored. However, these methods have largely not caught on due to the difficulty of learning a good attention policy and the added partial observability induced by a narrowed window of focus. This article addresses the first issue by constraining gazes to a spatial hierarchy. For the second issue, we identify a case where the partial observability induced by attention does not prevent Q-learning from finding an optimal policy. We conclude with real-robot experiments on challenging pick-place tasks demonstrating the applicability of the approach.

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。

↑