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Cooperative Multi-Agent Path Finding: Beyond Path Planning and Collision Avoidance

2021-05-23 18:25:46
Nir Greshler, Ofir Gordon, Oren Salzman, Nahum Shimkin

Abstract

We introduce the Cooperative Multi-Agent Path Finding (Co-MAPF) problem, an extension to the classical MAPF problem, where cooperative behavior is incorporated. In this setting, a group of autonomous agents operate in a shared environment and have to complete cooperative tasks while avoiding collisions with the other agents in the group. This extension naturally models many real-world applications, where groups of agents are required to collaborate in order to complete a given task. To this end, we formalize the Co-MAPF problem and introduce Cooperative Conflict-Based Search (Co-CBS), a CBS-based algorithm for solving the problem optimally for a wide set of Co-MAPF problems. Co-CBS uses a cooperation-planning module integrated into CBS such that cooperation planning is decoupled from path planning. Finally, we present empirical results on several MAPF benchmarks demonstrating our algorithm's properties.

Abstract (translated)

URL

https://arxiv.org/abs/2105.10993

PDF

https://arxiv.org/pdf/2105.10993.pdf


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