Cited by 9Robotic Path Planning AlgorithmsAdvanced Manufacturing and Logistics OptimizationMulti-Agent Systems and Negotiation

The DOI matches its Crossref record; 16 of the 18 references it cites were found in a registry or an index.

Deadlock-Free Method for Multi-Agent Pickup and Delivery Problem Using Priority Inheritance with Temporary Priority

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Abstract

This paper proposes a control method for the multi-agent pickup and delivery problem (MAPD problem) by extending the priority inheritance with backtracking (PIBT) method to make it applicable to more general environments. PIBT is an effective algorithm that introduces a priority to each agent, and at each timestep, the agents, in descending order of priority, decide their next neighboring locations in the next timestep through communications only with the local agents. Unfortunately, PIBT is only applicable to environments that are modeled as a bi-connected area, and if it contains dead-ends, such as tree-shaped paths, PIBT may cause deadlocks. However, in the real-world environment, there are many dead-end paths to locations such as the shelves where materials are stored as well as loading/unloading locations to transportation trucks. Our proposed method enables MAPD tasks to be performed in environments with some tree-shaped paths without deadlock while preserving the PIBT feature; it does this by allowing the agents to have temporary priorities and restricting agents’ movements in the trees. First, we demonstrate that agents can always reach their delivery location without deadlock. Our experiments indicate that the proposed method is very efficient, even in environments where PIBT is not applicable, by comparing them with those obtained using the well-known token passing method as a baseline.

Overview

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Crossref · 10.1016/j.procs.2022.09.212

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Metadata

Authors
Fujitani, Y., Yamauchi, T., Miyashita, Y., & Sugawara, T.
Affiliations
Waseda University (JP)
Corresponding author
Fujitani, Yukita
Venue
Procedia Computer Science
Publisher
Elsevier BV
Published
2022
Volume
207
Pages
1552-1561
ISSN
1877-0509 (ISSN-L)
OpenAlex
W4312590108
Cited by
9
References
18
Citations by year
2026: 6 · 2025: 2 · 2024: 1
FWCI
0.27
Type
conference paper
Language
en
Open access
Locations
  • Procedia Computer Science (publishedVersion, cc-by-nc-nd)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
Japan Society for the Promotion of Science (20H04245)
Topics
  • Physical Sciences › Engineering › Control and Systems Engineering › Robotic Path Planning Algorithms
  • Physical Sciences › Engineering › Industrial and Manufacturing Engineering › Advanced Manufacturing and Logistics Optimization
  • Physical Sciences › Computer Science › Artificial Intelligence › Multi-Agent Systems and Negotiation
Keywords
deadlock avoidance, multi-agent coordination, token passing, local communication

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