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Vision-and-Language Navigation (VLN) is a task where an agent navigates in an embodied indoor environment under human instructions. Previous works ignore the distribution of sample difficulty and we argue that this potentially degrade their…

Machine Learning · Computer Science 2021-11-16 Jiwen Zhang , Zhongyu Wei , Jianqing Fan , Jiajie Peng

Recent advancements in large language models (LLMs) have enabled their use as agents for planning complex tasks. Existing methods typically rely on a thought-action-observation (TAO) process to enhance LLM performance, but these approaches…

Artificial Intelligence · Computer Science 2025-04-18 Zheng Wang , Shu Xian Teo , Jun Jie Chew , Wei Shi

Vision-and-Language Navigation (VLN) has long been constrained by the limited diversity and scalability of simulator-curated datasets, which fail to capture the complexity of real-world environments. To overcome this limitation, we…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Mingfei Han , Haihong Hao , Liang Ma , Kamila Zhumakhanova , Ekaterina Radionova , Jingyi Zhang , Xiaojun Chang , Xiaodan Liang , Ivan Laptev

Vision-language navigation (VLN), which entails an agent to navigate 3D environments following human instructions, has shown great advances. However, current agents are built upon panoramic observations, which hinders their ability to…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Rui Liu , Xiaohan Wang , Wenguan Wang , Yi Yang

Retrieval-augmented generation (RAG) is an effective technique that enables large language models (LLMs) to utilize external knowledge sources for generation. However, current RAG systems are solely based on text, rendering it impossible to…

Information Retrieval · Computer Science 2025-03-04 Shi Yu , Chaoyue Tang , Bokai Xu , Junbo Cui , Junhao Ran , Yukun Yan , Zhenghao Liu , Shuo Wang , Xu Han , Zhiyuan Liu , Maosong Sun

Visual language navigation (VLN) is one of the important research in embodied AI. It aims to enable an agent to understand the surrounding environment and complete navigation tasks. VLN instructions could be categorized into coarse-grained…

Information Retrieval · Computer Science 2024-08-06 Zhao Kaichen , Song Yaoxian , Zhao Haiquan , Liu Haoyu , Li Tiefeng , Li Zhixu

Vision-and-Language Navigation (VLN), as a widely discussed research direction in embodied intelligence, aims to enable embodied agents to navigate in complicated visual environments through natural language commands. Most existing VLN…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Youzhi Liu , Fanglong Yao , Yuanchang Yue , Guangluan Xu , Xian Sun , Kun Fu

Navigating unfamiliar environments presents significant challenges for blind and low-vision (BLV) individuals. In this work, we construct a dataset of images and goals across different scenarios such as searching through kitchens or…

Computation and Language · Computer Science 2024-07-12 Zain Merchant , Abrar Anwar , Emily Wang , Souti Chattopadhyay , Jesse Thomason

The study of vision-and-language navigation (VLN) has typically relied on expert trajectories, which may not always be available in real-world situations due to the significant effort required to collect them. On the other hand, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Valay Bundele , Mahesh Bhupati , Biplab Banerjee , Aditya Grover

Vision-and-Language Navigation (VLN) aims to enable embodied agents to follow natural language instructions and reach target locations in real-world environments. While prior methods often rely on either global scene representations or…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Junrong Yue , Yifan Zhang , Chuan Qin , Bo Li , Xiaomin Lie , Xinlei Yu , Wenxin Zhang , Zhendong Zhao

Despite recent progress in multimodal large language models (MLLMs), reliable visual question answering in aerial scenes remains challenging. In such scenes, task-critical evidence is often carried by small objects, explicit quantities,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Junxiao Xue , Quan Deng , Tingqi Hu , Meicong Si , Xinyi Yin , Yunyun Shi , Xuecheng Wu

Vision-and-Language Navigation (VLN) requires agents to navigate photo-realistic environments following natural language instructions. Current methods predominantly rely on imitation learning, which suffers from limited generalization and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Jiangyang Li , Cong Wan , SongLin Dong , Chenhao Ding , Qiang Wang , Zhiheng Ma , Yihong Gong

Retrieval-Augmented Generation (RAG) is a powerful strategy for improving the factual accuracy of models by retrieving external knowledge relevant to queries and incorporating it into the generation process. However, existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Soyeong Jeong , Kangsan Kim , Jinheon Baek , Sung Ju Hwang

Automating teaching presents unique challenges, as replicating human interaction and adaptability is complex. Automated systems cannot often provide nuanced, real-time feedback that aligns with students' individual learning paces or…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Ruslan Gokhman , Jialu Li , Youshan Zhang

The Vision-and-Language Navigation (VLN) task requires an agent to follow natural language instructions and navigate through complex environments. Existing MLLM-based VLN methods primarily rely on imitation learning (IL) and often use…

Robotics · Computer Science 2025-09-17 Zekai Zhang , Weiye Zhu , Hewei Pan , Xiangchen Wang , Rongtao Xu , Xing Sun , Feng Zheng

Vision-and-language navigation requires an agent to navigate through a real 3D environment following natural language instructions. Despite significant advances, few previous works are able to fully utilize the strong correspondence between…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Yicong Hong , Cristian Rodriguez-Opazo , Qi Wu , Stephen Gould

Vision-and-language navigation (VLN) is the task to enable an embodied agent to navigate to a remote location following the natural language instruction in real scenes. Most of the previous approaches utilize the entire features or…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Xiangyang Li , Zihan Wang , Jiahao Yang , Yaowei Wang , Shuqiang Jiang

Vision-language navigation (VLN) is a critical domain within embedded intelligence, requiring agents to navigate 3D environments based on natural language instructions. Traditional VLN research has focused on improving environmental…

Artificial Intelligence · Computer Science 2024-09-24 Zhiyuan Li , Yanfeng Lv , Ziqin Tu , Di Shang , Hong Qiao

Retrieval-augmented generation (RAG) typically relies on a flat retrieval paradigm that maps queries directly to static, isolated text segments. This approach struggles with more complex tasks that require the conditional retrieval and…

Computation and Language · Computer Science 2026-05-19 Jihao Dai , Dingjun Wu , Yuxuan Chen , Zheni Zeng , Yukun Yan , Zhenghao Liu , Maosong Sun

Vision-and-Language Navigation (VLN) is a multi-modal, cooperative task requiring agents to interpret human instructions, navigate 3D environments, and communicate effectively under ambiguity. This paper presents a comprehensive review of…

Robotics · Computer Science 2025-12-02 Nivedan Yakolli , Avinash Gautam , Abhijit Das , Yuankai Qi , Virendra Singh Shekhawat