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Heterogeneous Face Recognition (HFR) aims to expand the applicability of Face Recognition (FR) systems to challenging scenarios, enabling the matching of face images across different domains, such as matching thermal images to visible…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Anjith George , Sebastien Marcel

Source-free Unsupervised Domain Adaptation (SFDA) aims to classify target samples by only accessing a pre-trained source model and unlabelled target samples. Since no source data is available, transferring the knowledge from the source…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Jinkun Jiang , Qingxuan Lv , Yuezun Li , Yong Du , Sheng Chen , Hui Yu , Junyu Dong

This paper presents a novel unsupervised domain adaptation method for cross-domain visual recognition. We propose a unified framework that reduces the shift between domains both statistically and geometrically, referred to as Joint…

Computer Vision and Pattern Recognition · Computer Science 2017-05-17 Jing Zhang , Wanqing Li , Philip Ogunbona

Unsupervised domain adaptation (UDA) transfers knowledge from a label-rich source domain to a fully-unlabeled target domain. To tackle this task, recent approaches resort to discriminative domain transfer in virtue of pseudo-labels to…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Chaoqi Chen , Weiping Xie , Wenbing Huang , Yu Rong , Xinghao Ding , Yue Huang , Tingyang Xu , Junzhou Huang

This study introduces a novel data augmentation technique, ADLDA, aimed at mitigating the negative impact of data distribution shifts caused by the data augmentation process in computer vision task. ADLDA partitions augmented data into…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Haonan Wang

For a long time, anomaly localization has been widely used in industries. Previous studies focused on approximating the distribution of normal features without adaptation to a target dataset. However, since anomaly localization should…

Computer Vision and Pattern Recognition · Computer Science 2022-06-10 Sungwook Lee , Seunghyun Lee , Byung Cheol Song

Question answering (QA) has recently shown impressive results for answering questions from customized domains. Yet, a common challenge is to adapt QA models to an unseen target domain. In this paper, we propose a novel self-supervised…

Computation and Language · Computer Science 2022-10-21 Zhenrui Yue , Huimin Zeng , Bernhard Kratzwald , Stefan Feuerriegel , Dong Wang

Unsupervised domain adaptation methods aim to alleviate performance degradation caused by domain-shift by learning domain-invariant representations. Existing deep domain adaptation methods focus on holistic feature alignment by matching…

Machine Learning · Computer Science 2018-11-20 Jun Wen , Risheng Liu , Nenggan Zheng , Qian Zheng , Zhefeng Gong , Junsong Yuan

Unsupervised domain adaptation for object detection is a challenging problem with many real-world applications. Unfortunately, it has received much less attention than supervised object detection. Models that try to address this task tend…

Computer Vision and Pattern Recognition · Computer Science 2021-06-11 Hongsong Wang , Shengcai Liao , Ling Shao

Domain adaptation leverages the knowledge in one domain - the source domain - to improve learning efficiency in another domain - the target domain. Existing heterogeneous domain adaptation research is relatively well-progressed, but only in…

Machine Learning · Computer Science 2020-02-11 Feng Liu , Guanquan Zhang , Jie Lu

Existing point cloud learning methods aggregate features from neighbouring points relying on constructing graph in the spatial domain, which results in feature update for each point based on spatially-fixed neighbours throughout layers. In…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Zihao Li , Pan Gao , Hui Yuan , Ran Wei

The insertion of deep learning in medical image analysis had lead to the development of state-of-the art strategies in several applications such a disease classification, as well as abnormality detection and segmentation. However, even the…

Image and Video Processing · Electrical Eng. & Systems 2022-02-24 Mauricio Orbes-Arteaga , Thomas Varsavsky , Lauge Sorensen , Mads Nielsen , Akshay Pai , Sebastien Ourselin , Marc Modat , M Jorge Cardoso

A typical domain adaptation approach is to adapt models trained on the annotated data in a source domain (e.g., sunny weather) for achieving high performance on the test data in a target domain (e.g., rainy weather). Whether the target…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Ziwei Liu , Zhongqi Miao , Xingang Pan , Xiaohang Zhan , Dahua Lin , Stella X. Yu , Boqing Gong

Unsupervised domain adaptation (UDA) in 3D segmentation tasks presents a formidable challenge, primarily stemming from the sparse and unordered nature of point cloud data. Especially for LiDAR point clouds, the domain discrepancy becomes…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Xidong Peng , Runnan Chen , Feng Qiao , Lingdong Kong , Youquan Liu , Yujing Sun , Tai Wang , Xinge Zhu , Yuexin Ma

In recent years, semi-supervised graph learning with data augmentation (DA) is currently the most commonly used and best-performing method to enhance model robustness in sparse scenarios with few labeled samples. Differing from homogeneous…

Machine Learning · Computer Science 2022-12-02 Ying Chen , Siwei Qiang , Mingming Ha , Xiaolei Liu , Shaoshuai Li , Lingfeng Yuan , Xiaobo Guo , Zhenfeng Zhu

Domain adaptation is transfer learning which aims to generalize a learning model across training and testing data with different distributions. Most previous research tackle this problem in seeking a shared feature representation between…

Machine Learning · Computer Science 2017-04-17 Lingkun Luo , Xiaofang Wang , Shiqiang Hu , Chao Wang , Yuxing Tang , Liming Chen

This paper presents an unsupervised deep-learning framework named Local Deep-Feature Alignment (LDFA) for dimension reduction. We construct neighbourhood for each data sample and learn a local Stacked Contractive Auto-encoder (SCAE) from…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Jian Zhang , Jun Yu , Dacheng Tao

We propose a simple but effective source-free domain adaptation (SFDA) method. Treating SFDA as an unsupervised clustering problem and following the intuition that local neighbors in feature space should have more similar predictions than…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Shiqi Yang , Yaxing Wang , Kai Wang , Shangling Jui , Joost van de Weijer

Model-heterogeneous personalized federated learning (MHPFL) enables FL clients to train structurally different personalized models on non-independent and identically distributed (non-IID) local data. Existing MHPFL methods focus on…

Machine Learning · Computer Science 2024-04-30 Liping Yi , Han Yu , Chao Ren , Heng Zhang , Gang Wang , Xiaoguang Liu , Xiaoxiao Li

Deep learning approaches for semantic segmentation rely primarily on supervised learning approaches and require substantial efforts in producing pixel-level annotations. Further, such approaches may perform poorly when applied to unseen…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Ying Chen , Xu Ouyang , Kaiyue Zhu , Gady Agam