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arXiv · 2306.07012

Generating Language Corrections for Teaching Physical Control Tasks

Megha Srivastava·Noah Goodman·Dorsa Sadigh
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Abstract

AI assistance continues to help advance applications in education, from language learning to intelligent tutoring systems, yet current methods for providing students feedback are still quite limited. Most automatic feedback systems either provide binary correctness feedback, which may not help a student understand how to improve, or require hand-coding feedback templates, which may not generalize to new domains. This can be particularly challenging for physical control tasks, where the rich diversity in student behavior and specialized domains make it challenging to leverage general-purpose assistive tools for providing feedback. We design and build CORGI, a model trained to generate language corrections for physical control tasks, such as learning to ride a bike. CORGI takes in as input a pair of student and expert trajectories, and then generates natural language corrections to help the student improve. We collect and train CORGI over data from three diverse physical control tasks (drawing, steering, and joint movement). Through both automatic and human evaluations, we show that CORGI can (i) generate valid feedback for novel student trajectories, (ii) outperform baselines on domains with novel control dynamics, and (iii) improve student learning in an interactive drawing task.

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BibTeXRIS

Megha Srivastava, Noah Goodman, Dorsa Sadigh. 2023-06-12. Generating Language Corrections for Teaching Physical Control Tasks. https://arxiv.org/abs/2306.07012

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