Skill Induction and Planning with Latent Language
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Abstract (arXiv)
We present a framework for learning hierarchical policies from demonstrations, using sparse natural language annotations to guide the discovery of reusable skills for autonomous decision-making. We formulate a generative model of action sequences in which goals generate sequences of high-level subtask descriptions, and these descriptions generate sequences of low-level actions. We describe how to train this model using primarily unannotated demonstrations by parsing demonstrations into sequences of named high-level subtasks, using only a small number of seed annotations to ground language in action. In trained models, natural language commands index a combinatorial library of skills; agents can use these skills to plan by generating high-level instruction sequences tailored to novel goals. We evaluate this approach in the ALFRED household simulation environment, providing natural language annotations for only 10% of demonstrations. It achieves task completion rates comparable to state-of-the-art models (outperforming several recent methods with access to ground-truth plans during training and evaluation) while providing structured and human-readable high-level plans.
Key facts. Cited by 99 papers in the map (data through 7 Oct 2026). Builds on 28 of its 59 references that are in the map. First posted on arXiv 4 Oct 2021.
Builds on
28 of 59 references.
References · 28
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- 2019Language as an Abstraction for Hierarchical Deep Reinforcement Learningcited by 138
- 2021A Persistent Spatial Semantic Representation for High-level Natural Language Instruction Executioncited by 91
- 2017Mapping Instructions and Visual Observations to Actions with Reinforcement Learningcited by 80
- 2017Hierarchical and Interpretable Skill Acquisition in Multi-task Reinforcement Learningcited by 77
- 2017Learning with Latent Languagecited by 75
- 2018TACO: Learning Task Decomposition via Temporal Alignment for Controlcited by 61
- 2018Learning Neural Templates for Text Generationcited by 61
- 2021Embodied BERT: A Transformer Model for Embodied, Language-guided Visual Task Completioncited by 57
- 2021Hierarchical Task Learning from Language Instructions with Unified Transformers and Self-Monitoringcited by 53
- 2017Multi-Level Discovery of Deep Optionscited by 50
- 2021PIGLeT: Language Grounding Through Neuro-Symbolic Interaction in a 3D Worldcited by 47
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- 2021Multitasking Inhibits Semantic Driftcited by 8
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Citing papers per year: 2021: 1; 2022: 17; 2023: 34; 2024: 26; 2025: 14; 2026: 7.
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