Papers › TERL: Large-Scale Multi-Target Encirclement Using Transformer-Enhanced Reinforcement Learning

TERL: Large-Scale Multi-Target Encirclement Using Transformer-Enhanced Reinforcement Learning

16 Mar 2025arXiv:2503.12395archive 2025-07-28

Heng Zhang, Guoxiang Zhao, Xiaoqiang Ren

Pursuit-evasion (PE) problem is a critical challenge in multi-robot systems (MRS). While reinforcement learning (RL) has shown its promise in addressing PE tasks, research has primarily focused on single-target pursuit, with limited exploration of multi-target encirclement, particularly in large-scale settings. This paper proposes a Transformer-Enhanced Reinforcement Learning (TERL) framework for large-scale multi-target encirclement. By integrating a transformer-based policy network with target selection, TERL enables robots to adaptively prioritize targets and safely coordinate robots. Results show that TERL outperforms existing RL-based methods in terms of encirclement success rate and task completion time, while maintaining good performance in large-scale scenarios. Notably, TERL, trained on small-scale scenarios (15 pursuers, 4 targets), generalizes effectively to large-scale settings (80 pursuers, 20 targets) without retraining, achieving a 100% success rate.

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Reinforcement LearningReinforcement Learning (RL)reinforcement-learning

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