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Reinforcement Learning with Verifiable Reward (RLVR) is empirically shown to notably enhance the reasoning performance of large language models (LLMs), particularly in mathematics and programming. However, the mechanistic role of Sample…

Artificial Intelligence · Computer Science 2026-05-28 Yue Cheng , Jiajun Zhang , Xiaohui Gao , Weiwei Xing , Zheng Wang , Zhanxing Zhu

Given a query image, Visual Place Recognition (VPR) is the task of retrieving an image of the same place from a reference database with robustness to viewpoint and appearance changes. Recent works show that some VPR benchmarks are solved by…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Mubariz Zaffar , Liangliang Nan , Sebastian Scherer , Julian F. P. Kooij

We study whether vision-language models (VLMs) can solve relative camera pose estimation (RCPE) from image pairs, a direct test of multi-view spatial reasoning. We cast RCPE as a discrete verbal classification task and introduce…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Ken Deng , Yifu Qiu , Yoni Kasten , Shay B. Cohen , Yftah Ziser

In this paper we explore methods to exploit symmetries for ensuring sample efficiency in reinforcement learning (RL), this problem deserves ever increasing attention with the recent advances in the use of deep networks for complex RL tasks…

Machine Learning · Statistics 2017-06-12 Anuj Mahajan , Theja Tulabandhula

Visual prompting has gained popularity as a method for adapting pre-trained models to specific tasks, particularly in the realm of parameter-efficient tuning. However, existing visual prompting techniques often pad the prompt parameters…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Can Jin , Ying Li , Mingyu Zhao , Shiyu Zhao , Zhenting Wang , Xiaoxiao He , Ligong Han , Tong Che , Dimitris N. Metaxas

Reasoning is a critical frontier for advancing medical image analysis, where transparency and trustworthiness play a central role in both clinician trust and regulatory approval. Although Medical Visual Language Models (VLMs) show promise…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Jiazhen Pan , Che Liu , Junde Wu , Fenglin Liu , Jiayuan Zhu , Hongwei Bran Li , Chen Chen , Cheng Ouyang , Daniel Rueckert

Reinforcement learning with verifiable rewards (RLVR) has recently advanced the reasoning capabilities of large language models (LLMs). While prior work has emphasized algorithmic design, data curation, and reward shaping, we investigate…

Machine Learning · Computer Science 2025-07-10 Xinjie Chen , Minpeng Liao , Guoxin Chen , Chengxi Li , Biao Fu , Kai Fan , Xinggao Liu

Reinforcement Learning (RL) has the potential to enable extreme off-road mobility by circumventing complex kinodynamic modeling, planning, and control by simulated end-to-end trial-and-error learning experiences. However, most RL methods…

Robotics · Computer Science 2025-07-18 Tong Xu , Chenhui Pan , Xuesu Xiao

Recently, visual-language learning (VLL) has shown great potential in enhancing visual-based person re-identification (ReID). Existing VLL-based ReID methods typically focus on image-text feature alignment at the whole-body level, while…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Yin Lin , Yehansen Chen , Baocai Yin , Jinshui Hu , Bing Yin , Cong Liu , Zengfu Wang

Vision-Language Foundation Models (VLFM) have shown a tremendous increase in performance in terms of generating high-resolution, photorealistic natural images. While VLFMs show a rich understanding of semantic content across modalities,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Parham Saremi , Amar Kumar , Mohamed Mohamed , Zahra TehraniNasab , Tal Arbel

Visual Place Recognition (VPR) is the process of recognising a previously visited place using visual information, often under varying appearance conditions and viewpoint changes and with computational constraints. VPR is related to the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-05 Mubariz Zaffar , Sourav Garg , Michael Milford , Julian Kooij , David Flynn , Klaus McDonald-Maier , Shoaib Ehsan

Visual Place Recognition (VPR) is a crucial part of mobile robotics and autonomous driving as well as other computer vision tasks. It refers to the process of identifying a place depicted in a query image using only computer vision. At…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Amar Ali-bey , Brahim Chaib-draa , Philippe Giguère

Large Vision-Language Models (LVLMs) typically follow a two-stage training paradigm-pretraining and supervised fine-tuning. Recently, preference optimization, derived from the language domain, has emerged as an effective post-training…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yufei Zhan , Yousong Zhu , Shurong Zheng , Hongyin Zhao , Fan Yang , Ming Tang , Jinqiao Wang

Mesh reconstruction from Neural Radiance Fields (NeRF) is widely used in 3D reconstruction and has been applied across numerous domains. However, existing methods typically rely solely on the given training set images, which restricts…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Haoyang Wang , Liming Liu , Xinggong Zhang

Continual reinforcement learning aims to sequentially learn a variety of tasks, retaining the ability to perform previously encountered tasks while simultaneously developing new policies for novel tasks. However, current continual RL…

Machine Learning · Computer Science 2023-06-16 Shiqi Liu , Mengdi Xu , Piede Huang , Yongkang Liu , Kentaro Oguchi , Ding Zhao

Person re-identification (re-id) aims to match pedestrians observed by disjoint camera views. It attracts increasing attention in computer vision due to its importance to surveillance system. To combat the major challenge of cross-view…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Lin Wu , Yang Wang , Junbin Gao , Xue Li

Developing 3D vision-language models with robust clinical reasoning remains a challenge due to the inherent complexity of volumetric medical imaging, the tendency of models to overfit superficial report patterns, and the lack of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Haoran Lai , Zihang Jiang , Kun Zhang , Qingsong Yao , Rongsheng Wang , Zhiyang He , Xiaodong Tao , Wei Wei , Shaohua Kevin Zhou

A prominent approach to visual Reinforcement Learning (RL) is to learn an internal state representation using self-supervised methods, which has the potential benefit of improved sample-efficiency and generalization through additional…

Machine Learning · Computer Science 2023-03-16 Yanjie Ze , Nicklas Hansen , Yinbo Chen , Mohit Jain , Xiaolong Wang

Large vision-language models (LVLMs) often fail to align with human preferences, leading to issues like generating misleading content without proper visual context (also known as hallucination). A promising solution to this problem is using…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Chenglong Wang , Yang Gan , Yifu Huo , Yongyu Mu , Murun Yang , Qiaozhi He , Tong Xiao , Chunliang Zhang , Tongran Liu , Quan Du , Di Yang , Jingbo Zhu

Reinforcement learning (RL) has become a standard technique for post-training diffusion-based image synthesis models, as it enables learning from reward signals to explicitly improve desirable aspects such as image quality and prompt…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 David McAllister , Miika Aittala , Tero Karras , Janne Hellsten , Angjoo Kanazawa , Timo Aila , Samuli Laine