Scientific Reports (Jan 2024)

Resilient multi-agent RL: introducing DQ-RTS for distributed environments with data loss

  • Lorenzo Canese,
  • Gian Carlo Cardarilli,
  • Luca Di Nunzio,
  • Rocco Fazzolari,
  • Marco Re,
  • Sergio Spanò

DOI
https://doi.org/10.1038/s41598-023-48767-1
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 10

Abstract

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Abstract This paper proposes DQ-RTS, a novel decentralized Multi-Agent Reinforcement Learning algorithm designed to address challenges posed by non-ideal communication and a varying number of agents in distributed environments. DQ-RTS incorporates an optimized communication protocol to mitigate data loss between agents. A comparative analysis between DQ-RTS and its decentralized counterpart Q-RTS, or Q-learning for Real-Time Swarms, demonstrates the superior convergence speed of DQ-RTS, achieving a remarkable speed-up factor ranging from 1.6 to 2.7 in scenarios with non-ideal communication. Moreover, DQ-RTS exhibits robustness by maintaining performance even when the agent population fluctuates, making it well-suited for applications requiring adaptable agent numbers over time. Additionally, extensive experiments conducted on various benchmark tasks validate the scalability and effectiveness of DQ-RTS, further establishing its potential as a practical solution for resilient Multi-Agent Reinforcement Learning in dynamic distributed environments.