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Cross-domain few-shot learning (CDFSL) aims to transfer knowledge from a data-sufficient source domain to data-scarce target domains. Although Vision Transformer (ViT) has shown superior capability in many vision tasks, its transferability…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Shuai Yi , Yixiong Zou , Yuhua Li , Ruixuan Li

Model agnostic meta-learning algorithms aim to infer priors from several observed tasks that can then be used to adapt to a new task with few examples. Given the inherent diversity of tasks arising in existing benchmarks, recent methods use…

Machine Learning · Computer Science 2022-07-26 Rakshith Subramanyam , Mark Heimann , Jayram Thathachar , Rushil Anirudh , Jayaraman J. Thiagarajan

Sequential decision making algorithms often struggle to leverage different sources of unstructured offline interaction data. Imitation learning (IL) methods based on supervised learning are robust, but require optimal demonstrations, which…

Machine Learning · Computer Science 2023-04-28 Joey Hejna , Jensen Gao , Dorsa Sadigh

Cross-domain few-shot classification (CD-FSC) aims to identify novel target classes with a few samples, assuming that there exists a domain shift between source and target domains. Existing state-of-the-art practices typically pre-train on…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Hengchu Lu , Yuanjie Shao , Xiang Wang , Changxin Gao

In this paper, we propose a Dual Focal Loss (DFL) function, as a replacement for the standard cross entropy (CE) function to achieve a better treatment of the unbalanced classes in a dataset. Our DFL method is an improvement on the recently…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Md Sazzad Hossain , Andrew P Paplinski , John M Betts

Existing camouflage object detection (COD) methods typically rely on fully-supervised learning guided by mask annotations. However, obtaining mask annotations is time-consuming and labor-intensive. Compared to fully-supervised methods,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Jingchen Ni , Quan Zhang , Dan Jiang , Keyu Lv , Ke Zhang , Chun Yuan

Despite the progress in cross-domain few-shot learning, a model pre-trained with DINO combined with a prototypical classifier outperforms the latest SOTA methods. A crucial limitation that needs to be overcome is that updating too many…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Naeem Paeedeh , Mahardhika Pratama , Imam Mustafa Kamal , Wolfgang Mayer , Jimmy Cao , Ryszard Kowlczyk

Few-shot image classification is a challenging task in the field of machine learning, involving the identification of new categories using a limited number of labeled samples. In recent years, methods based on local descriptors have made…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Bingchen Yan

Most existing studies on few-shot learning focus on unimodal settings, where models are trained to generalize to unseen data using a limited amount of labeled examples from a single modality. However, real-world data are inherently…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Zhengwei Yang , Yuke Li , Qiang Sun , Basura Fernando , Heng Huang , Zheng Wang

Domain adaptive semantic segmentation aims to learn a model with the supervision of source domain data, and produce satisfactory dense predictions on unlabeled target domain. One popular solution to this challenging task is self-training,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Ruihuang Li , Shuai Li , Chenhang He , Yabin Zhang , Xu Jia , Lei Zhang

Under the domain shift, cross-domain few-shot object detection aims to adapt object detectors in the target domain with a few annotated target data. There exists two significant challenges: (1) Highly insufficient target domain data; (2)…

Computer Vision and Pattern Recognition · Computer Science 2022-09-23 Yipeng Gao , Lingxiao Yang , Yunmu Huang , Song Xie , Shiyong Li , Wei-shi Zheng

Weakly supervised object detection has recently received much attention, since it only requires image-level labels instead of the bounding-box labels consumed in strongly supervised learning. Nevertheless, the save in labeling expense is…

Computer Vision and Pattern Recognition · Computer Science 2018-02-13 Jiajie Wang , Jiangchao Yao , Ya Zhang , Rui Zhang

Contrastive self-supervised learning methods learn to map data points such as images into non-parametric representation space without requiring labels. While highly successful, current methods require a large amount of data in the training…

Computer Vision and Pattern Recognition · Computer Science 2022-06-23 Ali Lotfi Rezaabad , Sidharth Kumar , Sriram Vishwanath , Jonathan I. Tamir

Few-Shot Learning (FSL) aims to improve a model's generalization capability in low data regimes. Recent FSL works have made steady progress via metric learning, meta learning, representation learning, etc. However, FSL remains challenging…

Computer Vision and Pattern Recognition · Computer Science 2020-11-23 Meng Ye , Xiao Lin , Giedrius Burachas , Ajay Divakaran , Yi Yao

Weakly supervised object localization (WSOL) focuses on localizing objects only with the supervision of image-level classification masks. Most previous WSOL methods follow the classification activation map (CAM) that localizes objects based…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Lei Zhu , Qi She , Qian Chen , Yunfei You , Boyu Wang , Yanye Lu

Long-tailed semi-supervised learning (LTSSL) represents a practical scenario for semi-supervised applications, challenged by skewed labeled distributions that bias classifiers. This problem is often aggravated by discrepancies between…

Machine Learning · Computer Science 2024-07-16 Emanuel Sanchez Aimar , Nathaniel Helgesen , Yonghao Xu , Marco Kuhlmann , Michael Felsberg

Few-shot graph anomaly detection (GAD) has recently garnered increasing attention, which aims to discern anomalous patterns among abundant unlabeled test nodes under the guidance of a limited number of labeled training nodes. Existing…

Machine Learning · Computer Science 2024-10-14 Jiazhen Chen , Sichao Fu , Zhibin Zhang , Zheng Ma , Mingbin Feng , Tony S. Wirjanto , Qinmu Peng

Few-Shot transfer learning has become a major focus of research as it allows recognition of new classes with limited labeled data. While it is assumed that train and test data have the same data distribution, this is often not the case in…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Wenjian Wang , Lijuan Duan , Yuxi Wang , Junsong Fan , Zhi Gong , Zhaoxiang Zhang

Domain shift is a significant challenge in machine learning, particularly in medical applications where data distributions differ across institutions due to variations in data collection practices, equipment, and procedures. This can…

Machine Learning · Computer Science 2025-06-30 Takumi Okuo , Shinnosuke Matsuo , Shota Harada , Kiyohito Tanaka , Ryoma Bise

Existing few-shot learning (FSL) methods make the implicit assumption that the few target class samples are from the same domain as the source class samples. However, in practice this assumption is often invalid -- the target classes could…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 An Zhao , Mingyu Ding , Zhiwu Lu , Tao Xiang , Yulei Niu , Jiechao Guan , Ji-Rong Wen , Ping Luo