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arXiv 1602.04754cs.RO
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基于人类技能概率模型的机器人任务规划

Towards Robot Task Planning From Probabilistic Models of Human Skills

Johns Hopkins University(约翰斯·霍普金斯大学)

Chris Paxton, Marin Kobilarov, Gregory D. Hager

摘要:

我们描述了一种基于技能专家演示的运动规划算法。为了教机器人执行复杂的物体操作任务,可以鲁棒地推广到新的环境中,我们必须(1)学习任务效果的表示,(2)找到一个最佳轨迹,在新的环境中重现这些效果。我们代表机器人技能的概率分布的功能,从多个专家演示。当在新环境中使用技能时,我们计算轨迹样本的特征期望,以便随机优化新环境中轨迹的可能性。该方法的目的是基于概率技能模型库来实现复杂任务的执行。运动可以组合起来完成混合领域中的复杂任务。我们的方法在各种案例研究中得到了验证,包括Android游戏,模拟装配任务和使用UR5的真实机器人实验。

英文摘要:

We describe an algorithm for motion planning based on expert demonstrations of a skill. In order to teach robots to perform complex object manipulation tasks that can generalize robustly to new environments, we must (1) learn a representation of the effects of a task and (2) find an optimal trajectory that will reproduce these effects in a new environment. We represent robot skills in terms of a probability distribution over features learned from multiple expert demonstrations. When utilizing a skill in a new environment, we compute feature expectations over trajectory samples in order to stochastically optimize the likelihood of a trajectory in the new environment. The purpose of this method is to enable execution of complex tasks based on a library of probabilistic skill models. Motions can be combined to accomplish complex tasks in hybrid domains. Our approach is validated in a variety of case studies, including an Android game, simulated assembly task, and real robot experiment with a UR5.

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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