作者
Jiaoyang Li, Zhe Chen, Daniel Harabor, Peter J Stuckey, Sven Koenig
发表日期
2022/6/28
期刊
Proceedings of the AAAI Conference on Artificial Intelligence
卷号
36
期号
9
页码范围
10256-10265
简介
Multi-Agent Path Finding (MAPF) is the problem of planning collision-free paths for multiple agents in a shared environment. In this paper, we propose a novel algorithm MAPF-LNS2 based on large neighborhood search for solving MAPF efficiently. Starting from a set of paths that contain collisions, MAPF-LNS2 repeatedly selects a subset of colliding agents and replans their paths to reduce the number of collisions until the paths become collision-free. We compare MAPF-LNS2 against a variety of state-of-the-art MAPF algorithms, including Prioritized Planning with random restarts, EECBS, and PPS, and show that MAPF-LNS2 runs significantly faster than them while still providing near-optimal solutions in most cases. MAPF-LNS2 solves 80% of the random-scenario instances with the largest number of agents from the MAPF benchmark suite with a runtime limit of just 5 minutes, which, to our knowledge, has not been achieved by any existing algorithms.
引用总数
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J Li, Z Chen, D Harabor, PJ Stuckey, S Koenig - Proceedings of the AAAI Conference on Artificial …, 2022