论文标题

自适应混合局部全球抽样,用于基于快速采样的最佳路径计划

Adaptive Hybrid Local-Global Sampling for Fast Informed Sampling-Based Optimal Path Planning

论文作者

Faroni, Marco, Pedrocchi, Nicola, Beschi, Manuel

论文摘要

本文通过结合可允许的知情采样和本地抽样(即,对当前解决方案的邻域进行采样)来提高RRT $^*$的性能。一种自适应策略根据以前样本的在线奖励,调节探索(可接受的知情抽样)和剥削(本地抽样)之间的权衡。该论文表明,在几个模拟和现实世界中,该算法在渐近上是最佳的,并且比最先进的路径计划者(例如,知情RRT*)具有更好的收敛速率。该算法的开源,与ROS兼容的实现可公开使用。

This paper improves the performance of RRT$^*$-like sampling-based path planners by combining admissible informed sampling and local sampling (i.e., sampling the neighborhood of the current solution). An adaptive strategy regulates the trade-off between exploration (admissible informed sampling) and exploitation (local sampling) based on online rewards from previous samples. The paper demonstrates that the algorithm is asymptotically optimal and has a better convergence rate than state-of-the-art path planners (e.g., Informed-RRT*) in several simulated and real-world scenarios. An open-source, ROS-compatible implementation of the algorithm is publicly available.

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