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arXiv 2001.06627cs.LGcs.AIcs.RO
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基于深度强化学习的密集动态环境下多智能体运动规划

Multi-agent Motion Planning for Dense and Dynamic Environments via Deep Reinforcement Learning

Isfahan University of Technology(伊斯法罕理工大学);Ryerson University(瑞尔森大学);University of Toronto(多伦多大学);Massachusetts Institute of Technology(麻省理工学院)

Samaneh Hosseini Semnani, Hugh Liu, Michael Everett, Anton de Ruiter, Jonathan P. How

摘要:

针对密集动态环境下的分布式运动规划问题,提出了一种深度强化学习(RL)和基于力的运动规划(FMP)的混合算法。单独地,RL和FMP算法都有自己的局限性。FMP不能产生时间最优路径,现有的RL解决方案不能在密集环境中产生无冲突路径。因此,我们首先尝试通过引入新的奖励函数来提高最近RL方法的性能,该函数不仅消除了预监督学习(SL)步骤的要求,而且还减少了拥挤环境中发生碰撞的机会。这改善了事情,但仍然有很多失败的案例。因此,我们开发了一种混合方法,利用简单的FMP方法在卡住,简单和高风险的情况下,并继续使用RL的正常情况下,FMP不能产生最优路径。仿真结果表明,该算法优于深度RL和FMP算法,产生高达50%的成功场景比深度RL和高达75%的额外时间比FMP达到目标。

英文摘要:

This paper introduces a hybrid algorithm of deep reinforcement learning (RL) and Force-based motion planning (FMP) to solve distributed motion planning problem in dense and dynamic environments. Individually, RL and FMP algorithms each have their own limitations. FMP is not able to produce time-optimal paths and existing RL solutions are not able to produce collision-free paths in dense environments. Therefore, we first tried improving the performance of recent RL approaches by introducing a new reward function that not only eliminates the requirement of a pre supervised learning (SL) step but also decreases the chance of collision in crowded environments. That improved things, but there were still a lot of failure cases. So, we developed a hybrid approach to leverage the simpler FMP approach in stuck, simple and high-risk cases, and continue using RL for normal cases in which FMP can't produce optimal path. Also, we extend GA3C-CADRL algorithm to 3D environment. Simulation results show that the proposed algorithm outperforms both deep RL and FMP algorithms and produces up to 50% more successful scenarios than deep RL and up to 75% less extra time to reach goal than FMP.

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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