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To address semi-supervised learning from both labeled and unlabeled data, we present a novel meta-learning scheme. We particularly consider that labeled and unlabeled data share disjoint ground truth label sets, which can be seen tasks like…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Yun-Chun Chen , Chao-Te Chou , Yu-Chiang Frank Wang

Distance Metric Learning (DML) seeks to learn a discriminative embedding where similar examples are closer, and dissimilar examples are apart. In this paper, we address the problem of Semi-Supervised DML (SSDML) that tries to learn a metric…

Machine Learning · Computer Science 2021-05-12 Ujjal Kr Dutta , Mehrtash Harandi , Chellu Chandra Sekhar

While metric learning is important for Person re-identification (RE-ID), a significant problem in visual surveillance for cross-view pedestrian matching, existing metric models for RE-ID are mostly based on supervised learning that requires…

Computer Vision and Pattern Recognition · Computer Science 2017-10-19 Hong-Xing Yu , Ancong Wu , Wei-Shi Zheng

Unsupervised person re-identification (re-ID) aims at closing the performance gap to supervised methods. These methods build reliable relationship between data points while learning representations. However, we empirically show that the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Xuanyu He , Wei Zhang , Ran Song , Qian Zhang , Xiangyuan Lan , Lin Ma

In video surveillance, person re-identification is the task of searching person images in non-overlapping cameras. Though supervised methods for person re-identification have attained impressive performance, obtaining large scale cross-view…

Computer Vision and Pattern Recognition · Computer Science 2019-10-10 T M Feroz Ali , Subhasis Chaudhuri

The rapid development of 3D object detection systems for self-driving cars has significantly improved accuracy. However, these systems struggle to generalize across diverse driving environments, which can lead to safety-critical failures in…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Travis Zhang , Katie Luo , Cheng Perng Phoo , Yurong You , Wei-Lun Chao , Bharath Hariharan , Mark Campbell , Kilian Q. Weinberger

Multi-label image recognition with incomplete labels is a challenging yet vital task in computer vision, which faces two fundamental challenges: learning semantic-aware features and recovering missing labels. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Zhi-Fen He , Ren-Dong Xie , Bo Li , Bin Liu , Jin-Yan Hu

Semi-supervised 3D medical image segmentation aims to achieve accurate segmentation using few labelled data and numerous unlabelled data. The main challenge in the design of semi-supervised learning methods consists in the effective use of…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Yanyan Wang , Kechen Song , Yuyuan Liu , Shuai Ma , Yunhui Yan , Gustavo Carneiro

Vehicle Make and Model Recognition (MMR) systems provide a fully automatic framework to recognize and classify different vehicle models. Several approaches have been proposed to address this challenge, however they can perform in restricted…

Computer Vision and Pattern Recognition · Computer Science 2018-06-11 Amir Nazemi , Mohammad Javad Shafiee , Zohreh Azimifar , Alexander Wong

Vehicle make and model recognition (VMMR) is an important task in intelligent transportation systems, but existing approaches struggle to adapt to newly released models. Contrastive Language-Image Pretraining (CLIP) provides strong…

Computer Vision and Pattern Recognition · Computer Science 2025-10-22 Wei-Chia Chang , Yan-Ann Chen

Semi-supervised learning (SSL) alleviates the cost of data labeling process by exploiting unlabeled data and has achieved promising results. Meanwhile, with the development of large foundation models, exploiting pre-trained models becomes a…

Machine Learning · Computer Science 2025-10-28 Song-Lin Lv , Rui Zhu , Tong Wei , Yu-Feng Li , Lan-Zhe Guo

Semi-supervised learning (SSL) has emerged as a promising paradigm for breast ultrasound (BUS) image segmentation, but it often suffers from unstable pseudo labels under extremely limited annotations, leading to inaccurate supervision and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Ruili Li , Jiayi Ding , Ruiyu Li , Yilun Jin , Shiwen Ge , Yuwen Zeng , Xiaoyong Zhang , Eichi Takaya , Jan Vrba , Noriyasu Homma

Aiming at improving performance of visual classification in a cost-effective manner, this paper proposes an incremental semi-supervised learning paradigm called Deep Co-Space (DCS). Unlike many conventional semi-supervised learning methods…

Computer Vision and Pattern Recognition · Computer Science 2017-08-01 Ziliang Chen , Keze Wang , Xiao Wang , Pai Peng , Ebroul Izquierdo , Liang Lin

Beyond attaining domain generalization (DG), visual recognition models should also be data-efficient during learning by leveraging limited labels. We study the problem of Semi-Supervised Domain Generalization (SSDG) which is crucial for…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Adnan Khan , Mai A. Shaaban , Muhammad Haris Khan

Though quite challenging, leveraging large-scale unlabeled or partially labeled images in a cost-effective way has increasingly attracted interests for its great importance to computer vision. To tackle this problem, many Active Learning…

Computer Vision and Pattern Recognition · Computer Science 2018-05-25 Keze Wang , Xiaopeng Yan , Dongyu Zhang , Lei Zhang , Liang Lin

In reinforcement learning (RL), value-based algorithms learn to associate each observation with the states and rewards that are likely to be reached from it. We observe that many self-supervised image pre-training methods bear similarity to…

Machine Learning · Computer Science 2025-06-16 Dibya Ghosh , Sergey Levine

Adapting pre-trained language models (PrLMs) (e.g., BERT) to new domains has gained much attention recently. Instead of fine-tuning PrLMs as done in most previous work, we investigate how to adapt the features of PrLMs to new domains…

Computation and Language · Computer Science 2020-12-01 Hai Ye , Qingyu Tan , Ruidan He , Juntao Li , Hwee Tou Ng , Lidong Bing

The advancement of deep learning has greatly improved supervised image classification. However, labeling data is costly, prompting research into unsupervised learning methods such as contrastive learning. In real-world scenarios, fully…

Artificial Intelligence · Computer Science 2026-01-09 Shogo Nakayama , Masahiro Okuda

Person re-identification (re-ID) has gained more and more attention due to its widespread applications in intelligent video surveillance. Unfortunately, the mainstream deep learning methods still need a large quantity of labeled data to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Qi Wang , Sikai Bai , Junyu Gao , Yuan Yuan , Xuelong Li

We present an approach to improve 3D vehicle labeling in self-driving applications through zero-shot inference of vehicle information, leveraging Vehicle Make and Model Recognition (VMMR) methods. The proposed approach utilizes a Vision…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Steven Chen , Shivesh Khaitan , Nemanja Djuric