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We study the problem of unsupervised domain adaptive re-identification (re-ID) which is an active topic in computer vision but lacks a theoretical foundation. We first extend existing unsupervised domain adaptive classification theories to…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Liangchen Song , Cheng Wang , Lefei Zhang , Bo Du , Qian Zhang , Chang Huang , Xinggang Wang

Person re-identification task has been greatly boosted by deep convolutional neural networks (CNNs) in recent years. The core of which is to enlarge the inter-class distinction as well as reduce the intra-class variance. However, to achieve…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Haibo Jin , Xiaobo Wang , Shengcai Liao , Stan Z. Li

Although supervised person re-identification (Re-ID) methods have shown impressive performance, they suffer from a poor generalization capability on unseen domains. Therefore, generalizable Re-ID has recently attracted growing attention.…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Seokeon Choi , Taekyung Kim , Minki Jeong , Hyoungseob Park , Changick Kim

This study explores a simple but strong baseline for person re-identification (ReID). Person ReID with deep neural networks has progressed and achieved high performance in recent years. However, many state-of-the-art methods design complex…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Hao Luo , Wei Jiang , Youzhi Gu , Fuxu Liu , Xingyu Liao , Shenqi Lai , Jianyang Gu

Current state-of-the-art self-supervised approaches, are effective when trained on individual domains but show limited generalization on unseen domains. We observe that these models poorly generalize even when trained on a mixture of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Neha Kalibhat , Sam Sharpe , Jeremy Goodsitt , Bayan Bruss , Soheil Feizi

Domain generalization aims to develop models that are robust to distribution shifts. Existing methods focus on learning invariance across domains to enhance model robustness, and data augmentation has been widely used to learn invariant…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Yingnan Liu , Yingtian Zou , Rui Qiao , Fusheng Liu , Mong Li Lee , Wynne Hsu

Multimodal recommender systems leverage diverse data sources, such as user interactions, content features, and contextual information, to address challenges like cold-start and data sparsity. However, existing methods often suffer from one…

Information Retrieval · Computer Science 2026-02-24 Adamya Shyam , Venkateswara Rao Kagita , Bharti Rana , Vikas Kumar

Person re-identification (Person ReID) is a challenging task due to the large variations in camera viewpoint, lighting, resolution, and human pose. Recently, with the advancement of deep learning technologies, the performance of Person ReID…

Computer Vision and Pattern Recognition · Computer Science 2018-05-02 Wangmeng Xiang , Jianqiang Huang , Xianbiao Qi , Xiansheng Hua , Lei Zhang

Domain adaptation (DA) aims at improving the performance of a model on target domains by transferring the knowledge contained in different but related source domains. With recent advances in deep learning models which are extremely data…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Gabriela Csurka

Domain generalization (DG) strives to address distribution shifts across diverse environments to enhance model's generalizability. Current DG approaches are confined to acquiring robust representations with continuous features, specifically…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Shaocong Long , Qianyu Zhou , Xikun Jiang , Chenhao Ying , Lizhuang Ma , Yuan Luo

Machine learning models are intrinsically vulnerable to domain shift between training and testing data, resulting in poor performance in novel domains. Domain generalization (DG) aims to overcome the problem by leveraging multiple source…

Computer Vision and Pattern Recognition · Computer Science 2022-10-27 Tingwei Wang , Da Li , Kaiyang Zhou , Tao Xiang , Yi-Zhe Song

This paper aims to learn a domain-generalizable (DG) person re-identification (ReID) representation from large-scale videos \textbf{without any annotation}. Prior DG ReID methods employ limited labeled data for training due to the high cost…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Zhaopeng Dou , Zhongdao Wang , Yali Li , Shengjin Wang

Video-based person re-identification has drawn massive attention in recent years due to its extensive applications in video surveillance. While deep learning-based methods have led to significant progress, these methods are limited by…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Takashi Isobe , Jian Han , Fang Zhu , Yali Li , Shengjin Wang

Domain generalization (DG) is the challenging and topical problem of learning models that generalize to novel testing domains with different statistics than a set of known training domains. The simple approach of aggregating data from all…

Computer Vision and Pattern Recognition · Computer Science 2019-12-09 Da Li , Jianshu Zhang , Yongxin Yang , Cong Liu , Yi-Zhe Song , Timothy M. Hospedales

The security of the Person Re-identification(ReID) model plays a decisive role in the application of ReID. However, deep neural networks have been shown to be vulnerable, and adding undetectable adversarial perturbations to clean images can…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Yunpeng Gong , Zhiyong Zeng , Liwen Chen , Yifan Luo , Bin Weng , Feng Ye

Domain generalization (DG) tends to alleviate the poor generalization capability of deep neural networks by learning model with multiple source domains. A classical solution to DG is domain augmentation, the common belief of which is that…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Fangrui Lv , Jian Liang , Shuang Li , Jinming Zhang , Di Liu

We present a novel unsupervised domain adaption method for person re-identification (reID) that generalizes a model trained on a labeled source domain to an unlabeled target domain. We introduce a camera-driven curriculum learning (CaCL)…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Geon Lee , Sanghoon Lee , Dohyung Kim , Younghoon Shin , Yongsang Yoon , Bumsub Ham

In recent years, a variety of proposed methods based on deep convolutional neural networks (CNNs) have improved the state of the art for large-scale person re-identification (ReID). While a large number of optimizations and network…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Paul Marchwica , Michael Jamieson , Parthipan Siva

Pedestrian attributes, e.g., hair length, clothes type and color, locally describe the semantic appearance of a person. Training person re-identification (ReID) algorithms under the supervision of such attributes have proven to be effective…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Xiangping Zhu , Pietro Morerio , Vittorio Murino

Person re-identification (person Re-Id) aims to retrieve the pedestrian images of a same person that captured by disjoint and non-overlapping cameras. Lots of researchers recently focuse on this hot issue and propose deep learning based…

Computer Vision and Pattern Recognition · Computer Science 2019-06-06 Chengyuan Zhang , Lei Zhu , Shichao Zhang