Episodic Transformer for Vision-and-Language Navigation
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Abstract (arXiv)
Interaction and navigation defined by natural language instructions in dynamic environments pose significant challenges for neural agents. This paper focuses on addressing two challenges: handling long sequence of subtasks, and understanding complex human instructions. We propose Episodic Transformer (E.T.), a multimodal transformer that encodes language inputs and the full episode history of visual observations and actions. To improve training, we leverage synthetic instructions as an intermediate representation that decouples understanding the visual appearance of an environment from the variations of natural language instructions. We demonstrate that encoding the history with a transformer is critical to solve compositional tasks, and that pretraining and joint training with synthetic instructions further improve the performance. Our approach sets a new state of the art on the challenging ALFRED benchmark, achieving 38.4% and 8.5% task success rates on seen and unseen test splits.
Key facts. Cited by 156 papers in the map (data through 14 Oct 2026). Builds on 47 of its 73 references that are in the map. First posted on arXiv 13 May 2021.
Builds on
47 of 73 references.
References · 47
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- 2018BERT: Pre-training of Deep Bidirectional Transformers for Language Understandingcited by 40,399
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- 2017Mask R-CNNcited by 7,277
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- 2019ViLBERT: Pretraining Task-Agnostic Visiolinguistic Representations for Vision-and-Language Taskscited by 2,222
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- 2019Habitat: A Platform for Embodied AI Researchcited by 1,191
35 more
- 2018Spider: A Large-Scale Human-Labeled Dataset for Complex and Cross-Domain Semantic Parsing and Text-to-SQL Taskcited by 1,139
- 2017Vision-and-Language Navigation: Interpreting visually-grounded navigation instructions in real environmentscited by 1,027
- 2017AI2-THOR: An Interactive 3D Environment for Visual AIcited by 869
- 2019ALFRED: A Benchmark for Interpreting Grounded Instructions for Everyday Taskscited by 783
- 2020Quantifying Attention Flow in Transformerscited by 775
- 2019VideoBERT: A Joint Model for Video and Language Representation Learningcited by 703
- 2018On Evaluation of Embodied Navigation Agentscited by 547
- 2020Beyond the Nav-Graph: Vision-and-Language Navigation in Continuous Environmentscited by 441
- 2018VirtualHome: Simulating Household Activities via Programscited by 415
- 2020Room-Across-Room: Multilingual Vision-and-Language Navigation with Dense Spatiotemporal Groundingcited by 414
- 2020Multi-modal Transformer for Video Retrievalcited by 395
- 2018Speaker-Follower Models for Vision-and-Language Navigationcited by 340
- 2018Video Action Transformer Networkcited by 316
- 2019Learning Latent Plans from Playcited by 316
- 2018TextWorld: A Learning Environment for Text-based Gamescited by 310
- 2018Reinforced Cross-Modal Matching and Self-Supervised Imitation Learning for Vision-Language Navigationcited by 305
- 2020A Recurrent Vision-and-Language BERT for Navigationcited by 302
- 2019Causal Confusion in Imitation Learningcited by 288
- 2019Stabilizing Transformers for Reinforcement Learningcited by 270
- 2019Learning to Navigate Unseen Environments: Back Translation with Environmental Dropoutcited by 244
- 2018Touchdown: Natural Language Navigation and Spatial Reasoning in Visual Street Environmentscited by 239
- 2020RoboTHOR: An Open Simulation-to-Real Embodied AI Platformcited by 193
- 2019Vision-Language Navigation with Self-Supervised Auxiliary Reasoning Taskscited by 179
- 2020Improving Vision-and-Language Navigation with Image-Text Pairs from the Webcited by 177
- 2019Self-Monitoring Navigation Agent via Auxiliary Progress Estimationcited by 176
- 2019The Regretful Agent: Heuristic-Aided Navigation through Progress Estimationcited by 105
- 2017Mapping Instructions and Visual Observations to Actions with Reinforcement Learningcited by 81
- 2019Tactical Rewind: Self-Correction via Backtracking in Vision-and-Language Navigationcited by 81
- 2014Grammar as a Foreign Languagecited by 70
- 2015Listen, Attend, and Walk: Neural Mapping of Navigational Instructions to Action Sequencescited by 50
- 2020BabyWalk: Going Farther in Vision-and-Language Navigation by Taking Baby Stepscited by 49
- 2019Transferable Representation Learning in Vision-and-Language Navigationcited by 48
- 2019Unsupervised Reinforcement Learning of Transferable Meta-Skills for Embodied Navigationcited by 40
- 2015Alignment-based compositional semantics for instruction followingcited by 21
- 2020Retouchdown: Adding Touchdown to StreetLearn as a Shareable Resource for Language Grounding Tasks in Street Viewcited by 18
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Citing papers per year: 2021: 10; 2022: 42; 2023: 49; 2024: 32; 2025: 10; 2026: 13.
156 papers.
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- 2026VLN-NF: Feasibility-Aware Vision-and-Language Navigation with False-Premise Instructions12 Apr 2026
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- 2026Bridging the Indoor-Outdoor Gap: Vision-Centric Instruction-Guided Embodied Navigation for the Last Meters6 Feb 2026
- 2025Apples on the Table? Evaluating Text-Guided 3D Scene Synthesis via Fine-Grained Constraint Verification4 Nov 2025
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