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A core challenge in AI-guided autonomy is enabling agents to navigate realistically and effectively in previously unseen environments based on natural language commands. We propose UAV-VLN, a novel end-to-end Vision-Language Navigation…

Robotics · Computer Science 2025-10-01 Pranav Saxena , Nishant Raghuvanshi , Neena Goveas

Vision-Language Navigation (VLN) enables agents to navigate in complex environments by following natural language instructions grounded in visual observations. Although most existing work has focused on ground-based robots or outdoor…

Robotics · Computer Science 2025-12-23 Xu Liu , Yu Liu , Hanshuo Qiu , Yang Qirong , Zhouhui Lian

The Visual-and-Language Navigation (VLN) task requires understanding a textual instruction to navigate a natural indoor environment using only visual information. While this is a trivial task for most humans, it is still an open problem for…

Computer Vision and Pattern Recognition · Computer Science 2022-10-28 Joaquin Ossandón , Benjamin Earle , Álvaro Soto

Vision-Language Navigation (VLN) systems are fundamentally constrained by partial observability, as an agent can only accumulate knowledge from locations it has personally visited. As multiple robots increasingly coexist in shared…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Qunchao Jin , Yiliao Song , Qi Wu

Vision-Language Navigation (VLN) requires agents to follow natural language instructions in partially observed 3D environments, motivating map representations that aggregate spatial context beyond local perception. However, most existing…

Vision-Language Navigation (VLN) aims to guide agents by leveraging language instructions and visual cues, playing a pivotal role in embodied AI. Indoor VLN has been extensively studied, whereas outdoor aerial VLN remains underexplored. The…

The challenging task of Vision-and-Language Navigation (VLN) requires embodied agents to follow natural language instructions to reach a goal location or object (e.g. `walk down the hallway and turn left at the piano'). For agents to…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Meera Hahn , Amit Raj , James M. Rehg

In the pursuit of robust and generalizable environment perception and language understanding, the ubiquitous challenge of dataset bias continues to plague vision-and-language navigation (VLN) agents, hindering their performance in unseen…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Liuyi Wang , Zongtao He , Ronghao Dang , Mengjiao Shen , Chengju Liu , Qijun Chen

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-and-Language Navigation (VLN) requires agents to follow long-horizon instructions and navigate complex 3D environments. However, existing approaches face two major challenges: constructing an effective long-term memory bank and…

Robotics · Computer Science 2026-03-27 Zihao Xin , Wentong Li , Yixuan Jiang , Bin Wang , Runmin Cong , Jie Qin , Shengjun Huang

Aerial Vision-and-Language Navigation (VLN) aims to enable unmanned aerial vehicles (UAVs) to interpret natural language instructions and navigate complex urban environments using onboard visual observation. This task holds promise for…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Huilin Xu , Zhuoyang Liu , Yixiang Luomei , Feng Xu

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

Existing work on vision and language navigation mainly relies on navigation-related losses to establish the connection between vision and language modalities, neglecting aspects of helping the navigation agent build a deep understanding of…

Computation and Language · Computer Science 2024-02-06 Yue Zhang , Quan Guo , Parisa Kordjamshidi

Recent studies in Vision-and-Language Navigation (VLN) train RL agents to execute natural-language navigation instructions in photorealistic environments, as a step towards robots that can follow human instructions. However, given the…

Vision-and-Language Navigation (VLN) is unique in that it requires turning relatively general natural-language instructions into robot agent actions, on the basis of the visible environment. This requires to extract value from two very…

Computation and Language · Computer Science 2020-07-30 Yuankai Qi , Zizheng Pan , Shengping Zhang , Anton van den Hengel , Qi Wu

VALAN is a lightweight and scalable software framework for deep reinforcement learning based on the SEED RL architecture. The framework facilitates the development and evaluation of embodied agents for solving grounded language…

Machine Learning · Computer Science 2019-12-09 Larry Lansing , Vihan Jain , Harsh Mehta , Haoshuo Huang , Eugene Ie

Inspired by recent work in meta-learning and generative teaching networks, we propose a framework called Generative Conversational Networks, in which conversational agents learn to generate their own labelled training data (given some seed…

Computation and Language · Computer Science 2021-07-20 Alexandros Papangelis , Karthik Gopalakrishnan , Aishwarya Padmakumar , Seokhwan Kim , Gokhan Tur , Dilek Hakkani-Tur

Language-driven object navigation requires agents to interpret natural language descriptions of target objects, which combine intrinsic and extrinsic attributes for instance recognition and commonsense navigation. Existing methods either…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Francesco Taioli , Shiping Yang , Sonia Raychaudhuri , Marco Cristani , Unnat Jain , Angel X Chang

Visual Language Navigation is a task that challenges robots to navigate in realistic environments based on natural language instructions. While previous research has largely focused on static settings, real-world navigation must often…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Dillon Loh , Tomasz Bednarz , Xinxing Xia , Frank Guan

Aerial vision-and-language navigation (Aerial VLN) aims to enable unmanned aerial vehicles (UAVs) to interpret natural language instructions and autonomously navigate complex three-dimensional environments by grounding language in visual…

Robotics · Computer Science 2026-04-10 Xingyu Xia , Lekai Zhou , Yujie Tang , Xiaozhou Zhu , Hai Zhu , Wen Yao