让机器人学会在不同场景中判断合适行为,避免遗忘旧知识。
Mind the Context: Continual Learning of Socially Appropriate Robot Actions via Environmental-Social Disentanglement

- 分离环境与社交线索,分别学习其对行为合适性的影响。
- 在多个室内场景中持续学习,性能优于现有方法。
- 适合需要跨场景适应的社交机器人研发者使用。
社交机器人需在多样化环境中运行,相同布局可能对应不同社会适宜行为(如在拥挤家中开启对话可接受,但在会议中则不恰当)。由于无法预先预测所有场景,机器人需通过持续学习(CL)从顺序经验中适应新情境,同时保留已有知识。现有研究未解决领域增量设置下的社交行为学习问题,即机器人逐步接触不同场景(如客厅、会议室、办公室、走廊),其中环境特征(如空间是否开放、家具是否杂乱)与社交线索(如人员或其他代理的位置)共同决定行为的适宜性。为此,本文提出显式解耦双分支(EDD)框架,明确分离环境与社交代理相关知识,并采用基于回放的重演机制缓解遗忘,以学习多种室内场景下机器人行为(如清洁、服务、开启对话)的适宜性。实验表明,EDD优于多个先进基线方法;消融实验进一步评估了不同解耦策略及对领域顺序的敏感性。代码已公开于 https://github.com/Cambridge-AFAR/Mind-the-Context.git。
原文摘要 · Abstract (English)
Social robots are expected to operate across diverse environments, where similar arrangements can imply different socially appropriate actions, e.g., starting a conversation may be acceptable in a crowded home but disruptive in an office meeting. Because such norms and environments cannot all be anticipated in advance, robots require continual learning (CL) to adapt from sequential experience while retaining previously acquired knowledge. Prior work has studied CL for generating socially appropriate robot actions, but it has not addressed domain-incremental settings in which the robot incrementally encounters diverse contexts (e.g., living room, meeting room, office, hallway), where both environmental (e.g., whether the space is open or cluttered with furniture) and social cues (e.g., how people or other agents are positioned around the robot) jointly shape the appropriateness of robot actions. We address this gap with the Explicit Disentanglement Dual-Branch (EDD) framework. EDD explicitly separates environmental and social-agent related knowledge and uses replay-based rehearsal to mitigate forgetting while learning the appropriateness of robot actions (e.g., cleaning, serving, starting a conversation) across several indoor domains. Experiments show that EDD outperforms several state-of-the-art baselines, and ablation studies further evaluate different disentanglement strategies and the sensitivity to domain ordering. Our code is publicly available at https://github.com/Cambridge-AFAR/Mind-the-Context.git.
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