Anytime Stochastic Task and Motion Policies
Anytime Stochastic Task and Motion Policies
复制标题
随时随机任务和运动策略
DOI:
10.48550/arxiv.2203.13236
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Siddharth Srivastava
中科院分区:
文献类型:
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作者:
Naman Shah;Siddharth Srivastava
In order to solve complex, long-horizon tasks, intelligent robots need to carry out high level, abstract planning and reasoning in conjunction with motion planning. However, abstract models are typically lossy and plans or policies computed using them can be inexecutable. These problems are exacerbated in stochastic situations where the robot needs to reason about, and plan for multiple contingencies. We present a new approach for integrated task and motion planning in stochastic settings. In contrast to prior work in this direction, we show that our approach can effectively compute integrated task and motion policies whose branching structures encode agent behaviors that handle multiple execution-time contingencies. We prove that our algorithm is probabilistically complete and can compute feasible solution policies in an anytime fashion so that the probability of encountering an unresolved contingency decreases over time. Empirical results on a set of challenging problems show the utility and scope of our method.
DOI:
10.1146/annurev-control-091420-084139
发表时间:
2021-01-01
期刊:
ANNUAL REVIEW OF CONTROL, ROBOTICS, AND AUTONOMOUS SYSTEMS, VOL 4, 2021
影响因子:
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作者:
Garrett, Caelan Reed;Chitnis, Rohan;Lozano-Perez, Tomas
通讯作者:
Lozano-Perez, Tomas