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Incorporating domain-specific priors in search and navigation tasks has shown promising results in improving generalization and sample complexity over end-to-end trained policies. In this work, we study how object embeddings that capture…

Robotics · Computer Science 2021-08-03 Vidhi Jain , Prakhar Agarwal , Shishir Patil , Katia Sycara

Images are a convenient way to specify which particular object instance an embodied agent should navigate to. Solving this task requires semantic visual reasoning and exploration of unknown environments. We present a system that can perform…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Jacob Krantz , Theophile Gervet , Karmesh Yadav , Austin Wang , Chris Paxton , Roozbeh Mottaghi , Dhruv Batra , Jitendra Malik , Stefan Lee , Devendra Singh Chaplot

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

For robotic vehicles to navigate robustly and safely in unseen environments, it is crucial to decide the most suitable navigation policy. However, most existing deep reinforcement learning based navigation policies are trained with a…

Robotics · Computer Science 2023-10-31 Kyowoon Lee , Seongun Kim , Jaesik Choi

Cognitive maps play a crucial role in facilitating flexible behaviour by representing spatial and conceptual relationships within an environment. The ability to learn and infer the underlying structure of the environment is crucial for…

Artificial Intelligence · Computer Science 2023-09-20 Daria de Tinguy , Toon Van de Maele , Tim Verbelen , Bart Dhoedt

Grounded understanding of natural language in physical scenes can greatly benefit robots that follow human instructions. In object manipulation scenarios, existing end-to-end models are proficient at understanding semantic concepts, but…

Robotics · Computer Science 2023-04-03 Qian Luo , Yunfei Li , Yi Wu

We propose a robotic learning system for autonomous exploration and navigation in unexplored environments. We are motivated by the idea that even an unseen environment may be familiar from previous experiences in similar environments. The…

Robotics · Computer Science 2022-11-24 Huangying Zhan , Hamid Rezatofighi , Ian Reid

Hierarchies allow feature sharing between objects at multiple levels of representation, can code exponential variability in a very compact way and enable fast inference. This makes them potentially suitable for learning and recognizing a…

Computer Vision and Pattern Recognition · Computer Science 2014-08-26 Sanja Fidler , Marko Boben , Ales Leonardis

Language is an effective medium for bi-directional communication in human-robot teams. To infer the meaning of many instructions, robots need to construct a model of their surroundings that describe the spatial, semantic, and metric…

Robotics · Computer Science 2019-09-24 Ethan Fahnestock , Siddharth Patki , Thomas M. Howard

We study the problem of jointly reasoning about language and vision through a navigation and spatial reasoning task. We introduce the Touchdown task and dataset, where an agent must first follow navigation instructions in a real-life visual…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Howard Chen , Alane Suhr , Dipendra Misra , Noah Snavely , Yoav Artzi

We consider the problem of object goal navigation in unseen environments. Solving this problem requires learning of contextual semantic priors, a challenging endeavour given the spatial and semantic variability of indoor environments.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-10 Georgios Georgakis , Bernadette Bucher , Karl Schmeckpeper , Siddharth Singh , Kostas Daniilidis

Object Navigation (ObjectNav) has made great progress with large language models (LLMs), but still faces challenges in memory management, especially in long-horizon tasks and dynamic scenes. To address this, we propose TopoNav, a new…

Robotics · Computer Science 2025-09-03 Peiran Liu , Qiang Zhang , Daojie Peng , Lingfeng Zhang , Yihao Qin , Hang Zhou , Jun Ma , Renjing Xu , Yiding Ji

Object navigation is defined as navigating to an object of a given label in a complex, unexplored environment. In its general form, this problem poses several challenges for Robotics: semantic exploration of unknown environments in search…

Robotics · Computer Science 2020-07-31 Ayzaan Wahid , Austin Stone , Kevin Chen , Brian Ichter , Alexander Toshev

Object rearrangement in a multi-room setup should produce a reasonable plan that reduces the agent's overall travel and the number of steps. Recent state-of-the-art methods fail to produce such plans because they rely on explicit…

Robotics · Computer Science 2024-06-04 Karan Mirakhor , Sourav Ghosh , Dipanjan Das , Brojeshwar Bhowmick

Intelligent navigation among social crowds is an essential aspect of mobile robotics for applications such as delivery, health care, or assistance. Deep Reinforcement Learning emerged as an alternative planning method to conservative…

Robotics · Computer Science 2021-09-24 Linh Kästner , Junhui Li , Zhengcheng Shen , Jens Lambrecht

Learning to navigate in complex environments with dynamic elements is an important milestone in developing AI agents. In this work we formulate the navigation question as a reinforcement learning problem and show that data efficiency and…

Object-goal navigation is a crucial engineering task for the community of embodied navigation; it involves navigating to an instance of a specified object category within unseen environments. Although extensive investigations have been…

Robotics · Computer Science 2025-03-20 Leyuan Sun , Asako Kanezaki , Guillaume Caron , Yusuke Yoshiyasu

In this paper, we consider the problem of building learning agents that can efficiently learn to navigate in constrained environments. The main goal is to design agents that can efficiently learn to understand and generalize to different…

Machine Learning · Computer Science 2020-03-04 Kei Ota , Yoko Sasaki , Devesh K. Jha , Yusuke Yoshiyasu , Asako Kanezaki

Many robotic tasks in real-world environments require physical interactions with an object such as pick up or push. For successful interactions, the robot needs to know the object's affordances, which are defined as the potential actions…

Robotics · Computer Science 2025-01-13 Paula Wulkop , Halil Umut Özdemir , Antonia Hüfner , Jen Jen Chung , Roland Siegwart , Lionel Ott

We study lifelong visual perception in an embodied setup, where we develop new models and compare various agents that navigate in buildings and occasionally request annotations which, in turn, are used to refine their visual perception…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 David Nilsson , Aleksis Pirinen , Erik Gärtner , Cristian Sminchisescu