近接学に基づく報酬モデリングによる深層強化学習の社会的に適合したナビゲーション
Towards Socially Compliant Navigation in Deep Reinforcement Learning via Proxemics-Based Reward Modeling
混雑環境でのロボットナビゲーションにおいて、社会的規範を考慮した報酬を近接学理論に基づいて設計し、深層強化学習に組み込むことで、ナビゲーション性能を保ちつつ社会的指標を改善する手法を提案した。
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著者: Takieddine Soualhi, Jacques Saraydaryan, Laetitia Matignon
分類: cs.LG, cs.RO
原文アブストラクト
Developing effective robot navigation methods in crowded environments is essential for real-world applications. Although recent deep reinforcement learning (DRL) methods have improved navigation performance in crowded environments, they often focus primarily on task-centric objectives and underrepresent social compliance objectives. In this paper, we introduce a novel proxemics-based reward formulation for DRL social navigation that provides a dense, interpretable social learning signal while maintaining navigation efficiency. Our approach models each human's personal space as a radial Gaussian-mixture field derived from Hall's proxemics theory and computes a robot-centric local cost over the robot's field of view. We integrate the proposed reward into established DRL navigation methods and evaluate it in simulation across multiple crowd scenarios, reward baselines, and crowd densities using both navigation metrics and social metrics. Results show that the proposed reward consistently improves social metrics in simulation while maintaining competitive navigation performance relative to the compared reward models.