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We study the problem of online Multi-Agent Pickup and Delivery (MAPD), where a team of agents must repeatedly serve dynamically appearing tasks on a shared map. Existing online methods either rely on simple heuristics, which result in poor…

Multiagent Systems · Computer Science 2025-08-11 Yue Zhang , Zhe Chen , Daniel Harabor , Pierre Le Bodic , Peter J. Stuckey

Multi-Agent Path Finding (MAPF) is an NP-hard problem well studied in artificial intelligence and robotics. It has many real-world applications for which existing MAPF solvers use various heuristics. However, these solvers are deterministic…

Artificial Intelligence · Computer Science 2017-06-12 Liron Cohen , Glenn Wagner , T. K. Satish Kumar , Howie Choset , Sven Koenig

Multi-Agent Reinforcement Learning (MARL) based Multi-Agent Path Finding (MAPF) has recently gained attention due to its efficiency and scalability. Several MARL-MAPF methods choose to use communication to enrich the information one agent…

Multiagent Systems · Computer Science 2024-07-11 Huijie Tang , Federico Berto , Jinkyoo Park

Among sub-optimal MAPF solvers, rule-based algorithms are particularly appealing since they are complete. Even in crowded scenarios, they allow finding a feasible solution that brings each agent to its target, preventing deadlock…

Optimization and Control · Mathematics 2024-04-10 S. Ardizzoni , I. Saccani , L. Consolini , M. Locatelli

Multi-agent path planning (MAPP) in continuous spaces is a challenging problem with significant practical importance. One promising approach is to first construct graphs approximating the spaces, called roadmaps, and then apply multi-agent…

Multiagent Systems · Computer Science 2022-01-25 Keisuke Okumura , Ryo Yonetani , Mai Nishimura , Asako Kanezaki

Cooperative path-finding in multi-agent systems demands scalable solutions to navigate agents from their origins to destinations without conflict. Despite the breadth of research, scalability remains hampered by increased computational…

Multiagent Systems · Computer Science 2024-07-30 Jinmingwu Jiang , Kaigui Wu , Haiyang Liu , Ren Zhang , Jingxin Liu , Yong He , Xipeng Kou

Recent work on the multi-agent pathfinding problem (MAPF) has begun to study agents with motion that is more complex, for example, with non-unit action durations and kinematic constraints. An important aspect of MAPF is collision detection.…

Robotics · Computer Science 2019-11-18 Thayne T. Walker , Nathan R. Sturtevant

Distributing computations among agents in large networks reduces computational effort in multi-agent path finding (MAPF). One distribution strategy is prioritized planning (PP). In PP, we couple and prioritize interacting agents to achieve…

Multiagent Systems · Computer Science 2025-01-22 Patrick Scheffe , Julius Kahle , Bassam Alrifaee

We present Scalable Multi-Agent Realistic Testbed (SMART), a realistic and efficient software tool for evaluating Multi-Agent Path Finding (MAPF) algorithms. MAPF focuses on planning collision-free paths for a group of robots. While…

Transfer Learning has shown great potential to enhance single-agent Reinforcement Learning (RL) efficiency. Similarly, Multiagent RL (MARL) can also be accelerated if agents can share knowledge with each other. However, it remains a problem…

Multi-Agent Pathfinding (MAPF) is a core challenge in multi-agent systems. Existing learning-based MAPF methods often struggle with scalability, particularly when addressing complex scenarios that are prone to deadlocks. To address these…

Multiagent Systems · Computer Science 2025-03-04 Seungbae Seo , Junghwan Kim , Minjeong Shin , Bongwon Suh

This paper addresses a generalization of the well known multi-agent path finding (MAPF) problem that optimizes multiple conflicting objectives simultaneously such as travel time and path risk. This generalization, referred to as…

Robotics · Computer Science 2022-03-08 Zhongqiang Ren , Sivakumar Rathinam , Maxim Likhachev , Howie Choset

This paper proposes a novel planning framework to handle a multi-agent pathfinding problem under team-connected communication constraint, where all agents must have a connected communication channel to the rest of the team during their…

Artificial Intelligence · Computer Science 2026-05-01 Hoang-Dung Bui , Erion Plaku , Gregoy J. Stein

Many real-world scenarios require multiple agents to coordinate in shared environments, while balancing trade-offs between multiple, potentially competing objectives. Current multi-objective multi-agent path finding (MO-MAPF) algorithms…

Artificial Intelligence · Computer Science 2025-10-14 Pulkit Rustagi , Kyle Hollins Wray , Sandhya Saisubramanian

Large robot fleets are now common in warehouses and other logistics settings, where small control gains translate into large operational impacts. In this article, we address task scheduling for lifelong Multi-Agent Pickup-and-Delivery…

Robotics · Computer Science 2026-03-17 Johannes Gaber , Meshal Alharbi , Daniele Gammelli , Gioele Zardini

In this paper a deep reinforcement based multi-agent path planning approach is introduced. The experiments are realized in a simulation environment and in this environment different multi-agent path planning problems are produced. The…

Machine Learning · Computer Science 2021-10-05 Mert Çetinkaya

Multi-agent path finding (MAPF) is a well-studied problem in artificial intelligence, where one needs to find collision-free paths for agents with given start and goal locations. In video games, agents of different types often form teams.…

Artificial Intelligence · Computer Science 2017-10-05 Hang Ma , Jingxing Yang , Liron Cohen , T. K. Satish Kumar , Sven Koenig

Multi-Agent Path Finding (MAPF) is the problem of effectively finding efficient collision-free paths for a group of agents in a shared workspace. The MAPF community has largely focused on developing high-performance heuristic search…

Multiagent Systems · Computer Science 2024-09-24 Rishi Veerapaneni , Arthur Jakobsson , Kevin Ren , Samuel Kim , Jiaoyang Li , Maxim Likhachev

Multi-agent path finding in dynamic crowded environments is of great academic and practical value for multi-robot systems in the real world. To improve the effectiveness and efficiency of communication and learning process during path…

Robotics · Computer Science 2021-10-05 Huifeng Guan , Yuan Gao , Min Zhao , Yong Yang , Fuqin Deng , Tin Lun Lam

The trajectory planning for a fleet of Automated Guided Vehicles (AGVs) on a roadmap is commonly referred to as the Multi-Agent Path Finding (MAPF) problem, the solution to which dictates each AGV's spatial and temporal location until it…

Robotics · Computer Science 2023-12-08 Alexander Berndt , Niels van Duijkeren , Luigi Palmieri , Alexander Kleiner , Tamás Keviczky