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Multi-Agent Path Finding (MAPF) finds conflict-free paths for multiple agents from their respective start to goal locations. MAPF is challenging as the joint configuration space grows exponentially with respect to the number of agents.…

Artificial Intelligence · Computer Science 2021-10-01 Lakshay Virmani , Zhongqiang Ren , Sivakumar Rathinam , Howie Choset

Multi-Agent Path Finding (MAPF) has been widely studied in recent years. However, most existing MAPF algorithms assume that an agent occupies only a single grid in a grid-based map. This assumption limits their applicability in many…

Robotics · Computer Science 2024-10-23 Zhuo Yao

We study two state-of-the-art solutions to the multi-agent pickup and delivery (MAPD) problem based on different principles -- multi-agent path-finding (MAPF) and multi-agent reinforcement learning (MARL). Specifically, a recent MAPF…

Machine Learning · Computer Science 2022-03-15 Tim Tsz-Kit Lau , Biswa Sengupta

The Multi-Agent Path Finding (MAPF) problem entails finding collision-free paths for a set of agents, guiding them from their start to goal locations. However, MAPF does not account for several practical task-related constraints. For…

Artificial Intelligence · Computer Science 2024-04-23 Yu Quan Chong , Jiaoyang Li , Katia Sycara

During the execution of Multi-Agent Path Finding (MAPF) plans in real-life applications, the MAPF assumption that the fleet's movement is perfectly synchronized does not apply. Since one or more of the agents may become delayed due to…

Multiagent Systems · Computer Science 2026-04-29 David Zahrádka , David Woller , Denisa Mužíková , Miroslav Kulich , Libor Přeučil

Multi-Agent Motion Planning (MAMP) finds various applications in fields such as traffic management, airport operations, and warehouse automation. In many of these environments, differential drive robots are commonly used. These robots have…

Robotics · Computer Science 2024-12-19 Jingtian Yan , Jiaoyang Li

Multi-agent pathfinding (MAPF) remains a critical problem in robotics and autonomous systems, where agents must navigate shared spaces efficiently while avoiding conflicts. Traditional centralized algorithms with global information provide…

Multiagent Systems · Computer Science 2026-02-24 Bharath Muppasani , Ritirupa Dey , Biplav Srivastava , Vignesh Narayanan

Real-time planning for a combined problem of target assignment and path planning for multiple agents, also known as the unlabeled version of Multi-Agent Path Finding (MAPF), is crucial for high-level coordination in multi-agent systems,…

Robotics · Computer Science 2022-03-01 Keisuke Okumura , Xavier Défago

This study extends the recently-developed LaCAM algorithm for multi-agent pathfinding (MAPF). LaCAM is a sub-optimal search-based algorithm that uses lazy successor generation to dramatically reduce the planning effort. We present two…

Artificial Intelligence · Computer Science 2023-05-08 Keisuke Okumura

Multi-agent pathfinding (MAPF) is the problem of finding a set of conflict-free paths for a set of agents. Typically, the agents' moves are limited to a pre-defined graph of possible locations and allowed transitions between them, e.g. a…

Artificial Intelligence · Computer Science 2024-09-02 Konstantin Yakovlev , Anton Andreychuk , Roni Stern

The Multi-Agent Path Finding (MAPF) problem aims at finding non-conflicting paths for multiple agents from their respective sources to destinations. This problem arises in multiple real-life situations, including robot motion planning and…

Multiagent Systems · Computer Science 2026-01-16 Aditi Anand , Dildar Ali , Suman Banerjee

Typical Multi-agent Path Finding (MAPF) solvers assume that agents move synchronously, thus neglecting the reality gap in timing assumptions, e.g., delays caused by an imperfect execution of asynchronous moves. So far, two policies enforce…

Multiagent Systems · Computer Science 2020-12-15 Keisuke Okumura , Yasumasa Tamura , Xavier Défago

Multi-robot systems are integral to modern logistics, but their capabilities are often limited to tasks executable by individual agents. This paper addresses a critical gap in existing frameworks like Multi-Agent Path Finding (MAPF) and…

Multiagent Systems · Computer Science 2026-05-18 Ning Zhou , Nikolai W. F. Bode , Edmund R. Hunt

Multi-agent pathfinding (MAPF) under one-shot planning is a core component of warehouse automation, yet classical formulations typically assume four-connected 2D grids with unit-time moves in four directions. To fill reality gaps while…

Multiagent Systems · Computer Science 2026-05-18 Hiroki Nagai , Keisuke Okumura

Multi-Agent Path Finding (MAPF) aims to compute collision-free paths for multiple agents and has a wide range of practical applications. LaCAM*, an anytime configuration-based solver, currently represents the state of the art. Recent work…

Artificial Intelligence · Computer Science 2026-03-10 Bojie Shen , Yue Zhang , Zhe Chen , Daniel Harabor

In environments where many automated guided vehicles (AGVs) operate, planning efficient, collision-free paths is essential. Related research has mainly focused on environments with pre-defined passages, resulting in space inefficiency. We…

Multiagent Systems · Computer Science 2025-11-27 Hiroya Makino , Yoshihiro Ohama , Seigo Ito

Multi-agent path finding (MAPF) is well-studied in artificial intelligence, robotics, theoretical computer science and operations research. We discuss issues that arise when generalizing MAPF methods to real-world scenarios and four…

Artificial Intelligence · Computer Science 2017-02-21 Hang Ma , Sven Koenig , Nora Ayanian , Liron Cohen , Wolfgang Hoenig , T. K. Satish Kumar , Tansel Uras , Hong Xu , Craig Tovey , Guni Sharon

Multi-agent Pickup and Delivery (MAPD) is a challenging industrial problem where a team of robots is tasked with transporting a set of tasks, each from an initial location and each to a specified target location. Appearing in the context of…

Multiagent Systems · Computer Science 2021-10-29 Zhe Chen , Javier Alonso-Mora , Xiaoshan Bai , Daniel D. Harabor , Peter J. Stuckey

The Multi-Agent Path Finding (MAPF) problem aims to determine the shortest and collision-free paths for multiple agents in a known, potentially obstacle-ridden environment. It is the core challenge for robotic deployments in large-scale…

Robotics · Computer Science 2025-11-20 Shuhao Liao , Weihang Xia , Yuhong Cao , Weiheng Dai , Chengyang He , Wenjun Wu , Guillaume Sartoretti

Local guidance has recently proven to be a powerful driver of empirical performance in real-time, suboptimal multi-agent pathfinding (MAPF), improving the scalable configuration-based solver LaCAM. By injecting informative spatiotemporal…

Multiagent Systems · Computer Science 2026-05-19 Tomoki Arita , Keisuke Okumura