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arXiv 2103.09036cs.ROcs.LG
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机器人装配行为树的规划与学习相结合

Combining Planning and Learning of Behavior Trees for Robotic Assembly

ABB Robotics(ABB机器人);ABB Corporate Research(ABB企业研究院);Royal Institute of Technology (KTH)(皇家理工学院(KTH))

Jonathan Styrud, Matteo Iovino, Mikael Norrlöf, Mårten Björkman, Christian Smith

摘要:

工业机器人可以在受控环境中解决非常复杂的任务,但现代应用要求机器人也能够在不可预测的环境中运行。机器人技术中越来越流行的反应式策略架构是行为树,但与其他架构一样,编程时间仍然会增加成本并限制灵活性。自动生成策略的算法有两个主要分支,自动规划和机器学习,两者都有自己的缺点。我们提出了一种使用遗传编程算法生成行为树的方法,并通过自动规划器的结果将其插入到人口中来结合这两个分支。实验结果证实,所提出的方法相结合的规划和学习表现良好的各种机器人装配问题,并优于单独使用的基础方法。我们还表明,这种类型的行为树的高级学习可以转移到一个真正的系统,而无需进一步的培训。

英文摘要:

Industrial robots can solve very complex tasks in controlled environments, but modern applications require robots able to operate in unpredictable surroundings as well. An increasingly popular reactive policy architecture in robotics is Behavior Trees but as with other architectures, programming time still drives cost and limits flexibility. There are two main branches of algorithms to generate policies automatically, automated planning and machine learning, both with their own drawbacks. We propose a method for generating Behavior Trees using a Genetic Programming algorithm and combining the two branches by taking the result of an automated planner and inserting it into the population. Experimental results confirm that the proposed method of combining planning and learning performs well on a variety of robotic assembly problems and outperforms both of the base methods used separately. We also show that this type of high level learning of Behavior Trees can be transferred to a real system without further training.

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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