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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

Diffusion-based policies have shown remarkable capability in executing complex robotic manipulation tasks but lack explicit characterization of geometry and semantics, which often limits their ability to generalize to unseen objects and…

Robotics · Computer Science 2024-10-24 Yixuan Wang , Guang Yin , Binghao Huang , Tarik Kelestemur , Jiuguang Wang , Yunzhu Li

This paper addresses the challenge of active perception within autonomous navigation in complex, unknown environments. Revisiting the foundational principles of active perception, we introduce an end-to-end reinforcement learning framework…

Robotics · Computer Science 2026-02-03 Grzegorz Malczyk , Mihir Kulkarni , Kostas Alexis

Two less addressed issues of deep reinforcement learning are (1) lack of generalization capability to new target goals, and (2) data inefficiency i.e., the model requires several (and often costly) episodes of trial and error to converge,…

Computer Vision and Pattern Recognition · Computer Science 2016-09-19 Yuke Zhu , Roozbeh Mottaghi , Eric Kolve , Joseph J. Lim , Abhinav Gupta , Li Fei-Fei , Ali Farhadi

We provide a study of how induced model sparsity can help achieve compositional generalization and better sample efficiency in grounded language learning problems. We consider simple language-conditioned navigation problems in a grid world…

Computation and Language · Computer Science 2022-07-07 Sam Spilsbury , Alexander Ilin

Mobile robots are often tasked with repeatedly navigating through an environment whose traversability changes over time. These changes may exhibit some hidden structure, which can be learned. Many studies consider reactive algorithms for…

Robotics · Computer Science 2020-12-07 Florence Tsang , Tristan Walker , Ryan A. MacDonald , Armin Sadeghi , Stephen L. Smith

While reinforcement learning has achieved remarkable successes in several domains, its real-world application is limited due to many methods failing to generalise to unfamiliar conditions. In this work, we consider the problem of…

Artificial Intelligence · Computer Science 2023-10-26 Michael Beukman , Devon Jarvis , Richard Klein , Steven James , Benjamin Rosman

Behavior cloning methods for robot learning suffer from poor generalization due to limited data support beyond expert demonstrations. Recent approaches leveraging video prediction models have shown promising results by learning rich…

Navigation is an essential ability for mobile agents to be completely autonomous and able to perform complex actions. However, the problem of navigation for agents with limited (or no) perception of the world, or devoid of a fully defined…

Robotics · Computer Science 2020-11-30 Danilo Perico , Paulo E. Santos , Reinaldo Bianchi

We present the ADaptive Adversarial Imitation Learning (ADAIL) algorithm for learning adaptive policies that can be transferred between environments of varying dynamics, by imitating a small number of demonstrations collected from a single…

Machine Learning · Computer Science 2020-08-31 Yiren Lu , Jonathan Tompson

We consider an active visual exploration scenario, where an agent must intelligently select its camera motions to efficiently reconstruct the full environment from only a limited set of narrow field-of-view glimpses. While the agent has…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Santhosh K. Ramakrishnan , Kristen Grauman

The ability to transfer a policy from one environment to another is a promising avenue for efficient robot learning in realistic settings where task supervision is not available. This can allow us to take advantage of environments well…

Robotics · Computer Science 2021-07-02 Grace Zhang , Linghan Zhong , Youngwoon Lee , Joseph J. Lim

Search missions require motion planning and navigation methods for information gathering that continuously replan based on new observations of the robot's surroundings. Current methods for information gathering, such as Monte Carlo Tree…

Learning how to navigate among humans in an occluded and spatially constrained indoor environment, is a key ability required to embodied agent to be integrated into our society. In this paper, we propose an end-to-end architecture that…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Enrico Cancelli , Tommaso Campari , Luciano Serafini , Angel X. Chang , Lamberto Ballan

To operate intelligently in domestic environments, robots require the ability to understand arbitrary spatial relations between objects and to generalize them to objects of varying sizes and shapes. In this work, we present a novel…

Robotics · Computer Science 2019-07-02 Philipp Jund , Andreas Eitel , Nichola Abdo , Wolfram Burgard

Vision-and-language navigation (VLN) is a challenging task that requires an agent to navigate in real-world environments by understanding natural language instructions and visual information received in real-time. Prior works have…

Robotics · Computer Science 2021-01-20 Ting Wang , Zongkai Wu , Donglin Wang

Enabling robots to autonomously navigate complex environments is essential for real-world deployment. Prior methods approach this problem by having the robot maintain an internal map of the world, and then use a localization and planning…

Machine Learning · Computer Science 2018-05-21 Gregory Kahn , Adam Villaflor , Bosen Ding , Pieter Abbeel , Sergey Levine

We focus on the task of language-conditioned grasping in clutter, in which a robot is supposed to grasp the target object based on a language instruction. Previous works separately conduct visual grounding to localize the target object, and…

Robotics · Computer Science 2024-11-01 Kechun Xu , Shuqi Zhao , Zhongxiang Zhou , Zizhang Li , Huaijin Pi , Yue Wang , Rong Xiong

Determining multi-robot motion policies for persistently monitoring a region with limited sensing, communication, and localization constraints in non-GPS environments is a challenging problem. To take the localization constraints into…

Robotics · Computer Science 2023-05-16 Manav Mishra , Prithvi Poddar , Rajat Agarwal , Jingxi Chen , Pratap Tokekar , P. B. Sujit

One of the long-term challenges of robotics is to enable robots to interact with humans in the visual world via natural language, as humans are visual animals that communicate through language. Overcoming this challenge requires the ability…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Yuankai Qi , Qi Wu , Peter Anderson , Xin Wang , William Yang Wang , Chunhua Shen , Anton van den Hengel