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Goal-oriented reinforcement learning has recently been a practical framework for robotic manipulation tasks, in which an agent is required to reach a certain goal defined by a function on the state space. However, the sparsity of such…

Machine Learning · Computer Science 2019-12-19 Zhizhou Ren , Kefan Dong , Yuan Zhou , Qiang Liu , Jian Peng

Can we learn policies in reinforcement learning without rewards? Can we learn a policy just by trying to reach a goal state? We answer these questions positively by proposing a multi-step procedure that first learns a world model that goes…

Machine Learning · Computer Science 2024-04-16 Marc Höftmann , Jan Robine , Stefan Harmeling

Learning to navigate in a realistic setting where an agent must rely solely on visual inputs is a challenging task, in part because the lack of position information makes it difficult to provide supervision during training. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2023-01-06 Lina Mezghani , Sainbayar Sukhbaatar , Arthur Szlam , Armand Joulin , Piotr Bojanowski

Learning generalizable policies that can adapt to unseen environments remains challenging in visual Reinforcement Learning (RL). Existing approaches try to acquire a robust representation via diversifying the appearances of in-domain…

Machine Learning · Computer Science 2022-12-20 Zhecheng Yuan , Zhengrong Xue , Bo Yuan , Xueqian Wang , Yi Wu , Yang Gao , Huazhe Xu

When robots handle navigation tasks while avoiding collisions, they perform in crowded and complex environments not as good as in stable and homogeneous environments. This often results in a low success rate and poor efficiency. Therefore,…

Robotics · Computer Science 2024-12-23 Yanying Zhou , Shijie Li , Jochen Garcke

Vision-language navigation (VLN) is the task of entailing an agent to carry out navigational instructions inside photo-realistic environments. One of the key challenges in VLN is how to conduct a robust navigation by mitigating the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-21 Hanqing Wang , Wenguan Wang , Tianmin Shu , Wei Liang , Jianbing Shen

Enabling embodied agents to imagine future states is essential for robust and generalizable visual navigation. Yet, state-of-the-art systems typically rely on modular designs that decouple navigation planning from visual world modeling,…

Artificial Intelligence · Computer Science 2026-03-24 Yifei Dong , Fengyi Wu , Guangyu Chen , Lingdong Kong , Xu Zhu , Qiyu Hu , Yuxuan Zhou , Jingdong Sun , Jun-Yan He , Qi Dai , Alexander G. Hauptmann , Zhi-Qi Cheng

Robotic navigation in environments shared with other robots or humans remains challenging because the intentions of the surrounding agents are not directly observable and the environment conditions are continuously changing. Local…

Robotics · Computer Science 2021-03-01 Bruno Brito , Michael Everett , Jonathan P. How , Javier Alonso-Mora

This paper focuses on robotic reinforcement learning with sparse rewards for natural language goal representations. An open problem is the sample-inefficiency that stems from the compositionality of natural language, and from the grounding…

Machine Learning · Computer Science 2022-09-12 Frank Röder , Manfred Eppe , Stefan Wermter

Machines are a long way from robustly solving open-world perception-control tasks, such as first-person view (FPV) aerial navigation. While recent advances in end-to-end Machine Learning, especially Imitation and Reinforcement Learning…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Rogerio Bonatti , Ratnesh Madaan , Vibhav Vineet , Sebastian Scherer , Ashish Kapoor

One effective approach for equipping artificial agents with sensorimotor skills is to use self-exploration. To do this efficiently is critical, as time and data collection are costly. In this study, we propose an exploration mechanism that…

Robotics · Computer Science 2021-02-18 Melisa Sener , Yukie Nagai , Erhan Oztop , Emre Ugur

Building perceptual systems for robotics which perform well under tight computational budgets requires novel architectures which rethink the traditional computer vision pipeline. Modern vision architectures require the agent to build a…

Computer Vision and Pattern Recognition · Computer Science 2019-08-09 Aaron Walsman , Yonatan Bisk , Saadia Gabriel , Dipendra Misra , Yoav Artzi , Yejin Choi , Dieter Fox

Reinforcement learning provides a general framework for flexible decision making and control, but requires extensive data collection for each new task that an agent needs to learn. In other machine learning fields, such as natural language…

Machine Learning · Computer Science 2020-11-20 Avi Singh , Huihan Liu , Gaoyue Zhou , Albert Yu , Nicholas Rhinehart , Sergey Levine

The gap between simulation and the real-world restrains many machine learning breakthroughs in computer vision and reinforcement learning from being applicable in the real world. In this work, we tackle this gap for the specific case of…

Computer Vision and Pattern Recognition · Computer Science 2022-01-11 Klaas Kelchtermans , Tinne Tuytelaars

This work focuses on object goal visual navigation, aiming at finding the location of an object from a given class, where in each step the agent is provided with an egocentric RGB image of the scene. We propose to learn the agent's policy…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Bar Mayo , Tamir Hazan , Ayellet Tal

We present Vision-based Navigation with Language-based Assistance (VNLA), a grounded vision-language task where an agent with visual perception is guided via language to find objects in photorealistic indoor environments. The task emulates…

Machine Learning · Computer Science 2019-04-09 Khanh Nguyen , Debadeepta Dey , Chris Brockett , Bill Dolan

Vision-Language-Action (VLA) models convert high-level language instructions into concrete, executable actions, a task that is especially challenging in open-world environments. We present Visual Foresight Planning (ForeAct), a general and…

Robotics · Computer Science 2026-02-16 Zhuoyang Zhang , Shang Yang , Qinghao Hu , Luke J. Huang , James Hou , Yufei Sun , Yao Lu , Song Han

We propose a novel architecture and training paradigm for training realistic PointGoal Navigation -- navigating to a target coordinate in an unseen environment under actuation and sensor noise without access to ground-truth localization.…

Computer Vision and Pattern Recognition · Computer Science 2021-09-20 Guillermo Grande , Dhruv Batra , Erik Wijmans

We introduce a general framework for visual forecasting, which directly imitates visual sequences without additional supervision. As a result, our model can be applied at several semantic levels and does not require any domain knowledge or…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Kuo-Hao Zeng , William B. Shen , De-An Huang , Min Sun , Juan Carlos Niebles

Vision-and-Language Navigation (VLN) is a natural language grounding task where an agent learns to follow language instructions and navigate to specified destinations in real-world environments. A key challenge is to recognize and stop at…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Jiannan Xiang , Xin Eric Wang , William Yang Wang