Adaptor: Advancing Assistive Teleoperation with Few-Shot Learning and Cross-Operator Generalization
This addresses the challenge of robust cross-operator generalization in assistive teleoperation, representing an incremental advance in shared control systems.
The paper tackles the problem of inter-operator variability in assistive teleoperation, which undermines intent recognition stability, by proposing Adaptor, a few-shot framework that improves success rates and efficiency over baselines and exhibits low variance across operators.
Assistive teleoperation enhances efficiency via shared control, yet inter-operator variability, stemming from diverse habits and expertise, induces highly heterogeneous trajectory distributions that undermine intent recognition stability. We present Adaptor, a few-shot framework for robust cross-operator intent recognition. The Adaptor bridges the domain gap through two stages: (i) preprocessing, which models intent uncertainty by synthesizing trajectory perturbations via noise injection and performs geometry-aware keyframe extraction; and (ii) policy learning, which encodes the processed trajectories with an Intention Expert and fuses them with the pre-trained vision-language model context to condition an Action Expert for action generation. Experiments on real-world and simulated benchmarks demonstrate that Adaptor achieves state-of-the-art performance, improving success rates and efficiency over baselines. Moreover, the method exhibits low variance across operators with varying expertise, demonstrating robust cross-operator generalization.