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Contrastive learning (CL) has emerged as a powerful technique for representation learning, with or without label supervision. However, supervised CL is prone to collapsing representations of subclasses within a class by not capturing all…

机器学习 · 计算机科学 2023-05-30 Yihao Xue , Siddharth Joshi , Eric Gan , Pin-Yu Chen , Baharan Mirzasoleiman

This paper tackles the problem of few-shot learning, which aims to learn new visual concepts from a few examples. A common problem setting in few-shot classification assumes random sampling strategy in acquiring data labels, which is…

计算机视觉与模式识别 · 计算机科学 2022-01-10 Shipeng Yan , Songyang Zhang , Xuming He

Cross-Domain Few-Shot Learning (CD-FSL) aims to transfer knowledge from a seen source domain to unseen target domains, serving as a key benchmark for evaluating the robustness and transferability of models. Existing style-based perturbation…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Wenqian Li , Pengfei Fang , Hui Xue

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…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Shuai Yi , Yixiong Zou , Yuhua Li , Ruixuan Li

When training deep neural networks for classification tasks, an intriguing empirical phenomenon has been widely observed in the last-layer classifiers and features, where (i) the class means and the last-layer classifiers all collapse to…

机器学习 · 计算机科学 2022-03-15 Jinxin Zhou , Xiao Li , Tianyu Ding , Chong You , Qing Qu , Zhihui Zhu

Recent advances in image-level self-supervised learning (SSL) have made significant progress, yet learning dense representations for patches remains challenging. Mainstream methods encounter an over-dispersion phenomenon that patches from…

计算机视觉与模式识别 · 计算机科学 2025-09-12 Peisong Wen , Qianqian Xu , Siran Dai , Runmin Cong , Qingming Huang

Deep neural networks need a big amount of training data, while in the real world there is a scarcity of data available for training purposes. To resolve this issue unsupervised methods are used for training with limited data. In this…

计算机视觉与模式识别 · 计算机科学 2022-02-10 Sayed Hashim , Muhammad Ali

Although few-shot learning research has advanced rapidly with the help of meta-learning, its practical usefulness is still limited because most of them assumed that all meta-training and meta-testing examples came from a single domain. We…

机器学习 · 计算机科学 2020-09-18 Yongseok Choi , Junyoung Park , Subin Yi , Dong-Yeon Cho

An increasingly popular machine learning paradigm is to pretrain a neural network (NN) on many tasks offline, then adapt it to downstream tasks, often by re-training only the last linear layer of the network. This approach yields strong…

机器学习 · 计算机科学 2024-06-10 Liam Collins , Hamed Hassani , Mahdi Soltanolkotabi , Aryan Mokhtari , Sanjay Shakkottai

Support-query shift few-shot learning aims to classify unseen examples (query set) to labeled data (support set) based on the learned embedding in a low-dimensional space under a distribution shift between the support set and the query set.…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Siyang Jiang , Rui Fang , Hsi-Wen Chen , Wei Ding , Ming-Syan Chen

We consider the problem of sufficient dimensionality reduction (SDR), where the high-dimensional observation is transformed to a low-dimensional sub-space in which the information of the observations regarding the label variable is…

机器学习 · 计算机科学 2018-12-20 Ershad Banijamali , Amir-Hossein Karimi , Ali Ghodsi

Self-supervised learning (SSL) has recently shown notable success in various visual tasks. However, in terms of discriminability, SSL is still not on par with supervised learning (SL). This paper identifies a key issue, the ``crowding…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Zeen Song , Wenwen Qiang , Changwen Zheng , Fuchun Sun , Hui Xiong

Standard deep neural networks (DNNs) are commonly trained in an end-to-end fashion for specific tasks such as object recognition, face identification, or character recognition, among many examples. This specificity often leads to…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Raphaël Achddou , J. Matias di Martino , Guillermo Sapiro

In this paper, we propose a deep invertible hybrid model which integrates discriminative and generative learning at a latent space level for semi-supervised few-shot classification. Various tasks for classifying new species from image data…

计算机视觉与模式识别 · 计算机科学 2021-05-25 Yusuke Ohtsubo , Tetsu Matsukawa , Einoshin Suzuki

Semi-supervised domain adaptation (SSDA) aims to solve tasks in target domain by utilizing transferable information learned from the available source domain and a few labeled target data. However, source data is not always accessible in…

计算机视觉与模式识别 · 计算机科学 2021-07-21 Xiaodong Wang , Junbao Zhuo , Shuhao Cui , Shuhui Wang

The use of meta-learning and transfer learning in the task of few-shot image classification is a well researched area with many papers showcasing the advantages of transfer learning over meta-learning in cases where data is plentiful and…

计算机视觉与模式识别 · 计算机科学 2021-05-10 Joshua Ball

Convolutional Neural Networks (CNNs) are successfully used for the important automotive visual perception tasks including object recognition, motion and depth estimation, visual SLAM, etc. However, these tasks are typically independently…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Ganesh Sistu , Isabelle Leang , Sumanth Chennupati , Senthil Yogamani , Ciaran Hughes , Stefan Milz , Samir Rawashdeh

Recent progress has shown that few-shot learning can be improved with access to unlabelled data, known as semi-supervised few-shot learning(SS-FSL). We introduce an SS-FSL approach, dubbed as Prototypical Random Walk Networks(PRWN), built…

机器学习 · 计算机科学 2021-02-10 Ahmed Ayyad , Yuchen Li , Nassir Navab , Shadi Albarqouni , Mohamed Elhoseiny

Deep neural networks need huge amount of training data, while in real world there is a scarcity of data available for training purposes. To resolve these issues, self-supervised learning (SSL) methods are used. SSL using geometric…

计算机视觉与模式识别 · 计算机科学 2022-02-18 Muhammad Ali , Sayed Hashim

Few-Shot Learning (FSL) requires vision models to quickly adapt to brand-new classification tasks with a shift in task distribution. Understanding the difficulties posed by this task distribution shift is central to FSL. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Xu Luo , Jing Xu , Zenglin Xu