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Relocalization is a fundamental task in the field of robotics and computer vision. There is considerable work in the field of deep camera relocalization, which directly estimates poses from raw images. However, learning-based methods have…

Robotics · Computer Science 2021-03-23 Wei Wang , Pedro P. B. de Gusmo , Bo Yang , Andrew Markham , Niki Trigoni

Scaling vision-language-action (VLA) model pre-training requires large volumes of diverse, high-quality manipulation trajectories. Most current data is obtained via human teleoperation, which is expensive and difficult to scale.…

Robotics · Computer Science 2025-11-26 Rushuai Yang , Zhiyuan Feng , Tianxiang Zhang , Kaixin Wang , Chuheng Zhang , Li Zhao , Xiu Su , Yi Chen , Jiang Bian

Deep Reinforcement Learning (DRL) is a promising approach for teaching robots new behaviour. However, one of its main limitations is the need for carefully hand-coded reward signals by an expert. We argue that it is crucial to automate the…

Robotics · Computer Science 2021-08-09 Abdalkarim Mohtasib , Gerhard Neumann , Heriberto Cuayahuitl

A cognitive beamforming algorithm for colocated MIMO radars, based on Reinforcement Learning (RL) framework, is proposed. We analyse an RL-based optimization protocol that allows the MIMO radar, i.e. the \textit{agent}, to iteratively sense…

Signal Processing · Electrical Eng. & Systems 2018-11-07 Li Wang , Stefano Fortunati , Maria Sabrina Greco , Fulvio Gini

Referring expression counting (REC) is an intention-driven task that requires context-aware visual reasoning. While recent vision-language models incorporate language for visual understanding, most existing REC methods rely on rulebased…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Hui Liu , Yunlai Teng , Kunlong Bai , Pengfei Qi , Haotian Yan , Liang Li , Junlan Feng

Multimodal intelligence development recently show strong progress in visual understanding and high level reasoning. Though, most reasoning system still reply on textual information as the main medium for inference. This limit their…

Machine Learning · Computer Science 2026-01-01 Soham Pahari , M. Srinivas

Learning to navigate in a visual environment following natural language instructions is a challenging task because natural language instructions are highly variable, ambiguous, and under-specified. In this paper, we present a novel training…

Computation and Language · Computer Science 2020-03-11 Qiaolin Xia , Xiujun Li , Chunyuan Li , Yonatan Bisk , Zhifang Sui , Jianfeng Gao , Yejin Choi , Noah A. Smith

Inverse Reinforcement Learning (IRL) has demonstrated effectiveness in a variety of imitation tasks. In this paper, we introduce an IRL framework designed to extract rewarding features from expert trajectories affected by delayed…

Machine Learning · Computer Science 2024-12-05 Simon Sinong Zhan , Qingyuan Wu , Zhian Ruan , Frank Yang , Philip Wang , Yixuan Wang , Ruochen Jiao , Chao Huang , Qi Zhu

In this paper, the main task we aim to tackle is the multi-instance semi-supervised video object segmentation across a sequence of frames where only the first-frame box-level ground-truth is provided. Detection-based algorithms are widely…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 Mingjie Sun , Jimin Xiao , Eng Gee Lim , Bingfeng Zhang , Yao Zhao

Acquiring count annotations generally requires less human effort than point-level and bounding box annotations. Thus, we propose the novel problem setup of localizing objects in dense scenes under this weaker supervision. We propose LOOC, a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Issam H. Laradji , Rafael Pardinas , Pau Rodriguez , David Vazquez

We propose a novel visual re-localization method based on direct matching between the implicit 3D descriptors and the 2D image with transformer. A conditional neural radiance field(NeRF) is chosen as the 3D scene representation in our…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Jianlin Liu , Qiang Nie , Yong Liu , Chengjie Wang

Offline reinforcement learning (RL) has attracted much attention due to its ability in learning from static offline datasets and eliminating the need of interacting with the environment. Nevertheless, the success of offline RL relies…

Machine Learning · Computer Science 2024-02-22 Jiafei Lyu , Xiaoteng Ma , Le Wan , Runze Liu , Xiu Li , Zongqing Lu

Preference-aligned robot navigation in human environments is typically achieved through learning-based approaches, utilizing user feedback or demonstrations for personalization. However, personal preferences are subject to change and might…

Robotics · Computer Science 2025-10-21 Jorge de Heuvel , Tharun Sethuraman , Maren Bennewitz

Weakly-supervised object localization methods tend to fail for object classes that consistently co-occur with the same background elements, e.g. trains on tracks. We propose a method to overcome these failures by adding a very small amount…

Computer Vision and Pattern Recognition · Computer Science 2016-05-19 Alexander Kolesnikov , Christoph H. Lampert

Reinforcement Learning (RL), among other learning-based methods, represents powerful tools to solve complex robotic tasks (e.g., actuation, manipulation, navigation, etc.), with the need for real-world data to train these systems as one of…

Robotics · Computer Science 2020-07-28 Kenzo Lobos-Tsunekawa , Tatsuya Harada

Model-based next state prediction and state value prediction are slow to converge. To address these challenges, we do the following: i) Instead of a neural network, we do model-based planning using a parallel memory retrieval system (which…

Artificial Intelligence · Computer Science 2023-02-02 John Chong Min Tan , Mehul Motani

Motion planning under uncertainty is one of the main challenges in developing autonomous driving vehicles. In this work, we focus on the uncertainty in sensing and perception, resulted from a limited field of view, occlusions, and sensing…

Robotics · Computer Science 2021-10-05 Kasra Rezaee , Peyman Yadmellat , Simon Chamorro

Reinforcement Learning (RL) is a rapidly growing area of machine learning that finds its application in a broad range of domains, from finance and healthcare to robotics and gaming. Compared to other machine learning techniques, RL agents…

Artificial Intelligence · Computer Science 2024-11-14 Geetansh Kalra , Divye Singh , Justin Jose

Video generation models produce visually coherent content but struggle with tasks requiring spatial reasoning and multi-step planning. Reinforcement learning (RL) offers a path to improve generalization, but its effectiveness in video…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Ming Liu , Yunbei Zhang , Shilong Liu , Liwen Wang , Wensheng Zhang

Object detection, instance segmentation, and pose estimation are popular visual recognition tasks which require localizing the object by internal or boundary landmarks. This paper summarizes these tasks as location-sensitive visual…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Kaiwen Duan , Lingxi Xie , Honggang Qi , Song Bai , Qingming Huang , Qi Tian