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Summary of Fine-grained Alignment in Vision-and-language Navigation Through Bayesian Optimization, by Yuhang Song et al.


Fine-Grained Alignment in Vision-and-Language Navigation through Bayesian Optimization

by Yuhang Song, Mario Gianni, Chenguang Yang, Kunyang Lin, Te-Chuan Chiu, Anh Nguyen, Chun-Yi Lee

First submitted to arxiv on: 22 Nov 2024

Categories

  • Main: Computer Vision and Pattern Recognition (cs.CV)
  • Secondary: Computation and Language (cs.CL); Machine Learning (cs.LG)

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
This paper tackles the problem of fine-grained alignment in Vision-and-Language Navigation (VLN) tasks, where robots navigate realistic 3D environments based on natural language instructions. The current approaches use contrastive learning to align language with visual trajectory sequences, but they struggle with fine-grained vision negatives. To address this issue, the authors introduce a novel Bayesian Optimization-based adversarial optimization framework for creating fine-grained contrastive vision samples. The proposed methodology is validated through experiments on two common VLN benchmarks: R2R and REVERIE. The results demonstrate that the enriched embeddings benefit navigation, leading to a promising performance enhancement.
Low GrooveSquid.com (original content) Low Difficulty Summary
This paper helps robots better understand instructions from natural language. Right now, robots have trouble navigating 3D environments based on words because their brains don’t align language with visual details well. To fix this, the authors came up with a new way to create examples that help train robots to recognize what they’re seeing and what it means. They tested their method using two popular robot navigation datasets and showed that it works really well.

Keywords

* Artificial intelligence  * Alignment  * Optimization