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Few-shot classification requires adapting knowledge learned from a large annotated base dataset to recognize novel unseen classes, each represented by few labeled examples. In such a scenario, pretraining a network with high capacity on the…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Yiren Jian , Lorenzo Torresani

This paper explores test-agnostic long-tail recognition, a challenging long-tail task where the test label distributions are unknown and arbitrarily imbalanced. We argue that the variation in these distributions can be broken down…

Machine Learning · Computer Science 2026-03-02 Zhiyong Yang , Qianqian Xu , Sicong Li , Zitai Wang , Xiaochun Cao , Qingming Huang

Recent progress in few-shot learning promotes a more realistic cross-domain setting, where the source and target datasets are from different domains. Due to the domain gap and disjoint label spaces between source and target datasets, their…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Pan Li , Shaogang Gong , Chengjie Wang , Yanwei Fu

Existing work within transfer learning often follows a two-step process -- pre-training over a large-scale source domain and then finetuning over limited samples from the target domain. Yet, despite its popularity, this methodology has been…

Machine Learning · Computer Science 2025-01-03 Akul Goyal , Carl Edwards

Labeling large image datasets with attributes such as facial age or object type is tedious and sometimes infeasible. Supervised machine learning methods provide a highly accurate solution, but require manual labels which are often…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Jonathan Kahana , Niv Cohen , Yedid Hoshen

The needs for precisely estimating a student's academic performance have been emphasized with an increasing amount of attention paid to Intelligent Tutoring System (ITS). However, since labels for academic performance, such as test scores,…

Computers and Society · Computer Science 2021-07-13 Byungsoo Kim , Hangyeol Yu , Dongmin Shin , Youngduck Choi

Few-shot learning aims to classify unseen classes with a few training examples. While recent works have shown that standard mini-batch training with a carefully designed training strategy can improve generalization ability for unseen…

Machine Learning · Computer Science 2021-03-02 Jin-Woo Seo , Hong-Gyu Jung , Seong-Whan Lee

Domain Adaptation (DA) targets at adapting a model trained over the well-labeled source domain to the unlabeled target domain lying in different distributions. Existing DA normally assumes the well-labeled source domain is class-wise…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Tongxin Wang , Zhengming Ding , Wei Shao , Haixu Tang , Kun Huang

Generating large-scale synthetic data in simulation is a feasible alternative to collecting/labelling real data for training vision-based deep learning models, albeit the modelling inaccuracies do not generalize to the physical world. In…

Computer Vision and Pattern Recognition · Computer Science 2021-01-08 Ajay Kumar Tanwani

Due to the limited availability of data, existing few-shot learning methods trained from scratch fail to achieve satisfactory performance. In contrast, large-scale pre-trained models such as CLIP demonstrate remarkable few-shot and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-20 Kun Song , Huimin Ma , Bochao Zou , Huishuai Zhang , Weiran Huang

Deep learning-based food image classification enables precise identification of food categories, further facilitating accurate nutritional analysis. However, real-world food images often show a skewed distribution, with some food types…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 GaYeon Koh , Hyun-Jic Oh , Jeonghyun Noh , Won-Ki Jeong

The label shift problem refers to the supervised learning setting where the train and test label distributions do not match. Existing work addressing label shift usually assumes access to an \emph{unlabelled} test sample. This sample may be…

Machine Learning · Computer Science 2021-08-18 Jingzhao Zhang , Aditya Menon , Andreas Veit , Srinadh Bhojanapalli , Sanjiv Kumar , Suvrit Sra

Beyond general recognition tasks, specialized domains and fine-grained settings often encounter data scarcity, especially for tail classes. To obtain less biased and more reliable models under such scarcity, practitioners leverage diffusion…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Hoyoung Kim , Minwoo Jang , Jabin Koo , Sangdoo Yun , Jungseul Ok

Multi-instance partial-label learning (MIPL) is an emerging learning framework where each training sample is represented as a multi-instance bag associated with a candidate label set. Existing MIPL algorithms often overlook the margins for…

Machine Learning · Computer Science 2025-01-23 Wei Tang , Yin-Fang Yang , Zhaofei Wang , Weijia Zhang , Min-Ling Zhang

Deep learning algorithms can fare poorly when the training dataset suffers from heavy class-imbalance but the testing criterion requires good generalization on less frequent classes. We design two novel methods to improve performance in…

Machine Learning · Computer Science 2019-10-29 Kaidi Cao , Colin Wei , Adrien Gaidon , Nikos Arechiga , Tengyu Ma

Crop field boundaries aid in mapping crop types, predicting yields, and delivering field-scale analytics to farmers. Recent years have seen the successful application of deep learning to delineating field boundaries in industrial…

Computer Vision and Pattern Recognition · Computer Science 2022-01-14 Sherrie Wang , Francois Waldner , David B. Lobell

Few-shot learning is a central problem in meta-learning, where learners must quickly adapt to new tasks given limited training data. Recently, feature pre-training has become a ubiquitous component in state-of-the-art meta-learning methods…

Machine Learning · Computer Science 2021-10-28 Ruohan Wang , Massimiliano Pontil , Carlo Ciliberto

Deep learning (DL) techniques are highly effective for defect detection from images. Training DL classification models, however, requires vast amounts of labeled data which is often expensive to collect. In many cases, not only the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Adrian Shuai Li , Elisa Bertino , Rih-Teng Wu , Ting-Yan Wu

Benefiting from prompt tuning, recent years have witnessed the promising performance of pre-trained vision-language models, e.g., CLIP, on versatile downstream tasks. In this paper, we focus on a particular setting of learning adaptive…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Chun-Mei Feng , Kai Yu , Yong Liu , Salman Khan , Wangmeng Zuo

We focus on the problem of domain adaptation when the goal is shifting the model towards the target distribution, rather than learning domain invariant representations. It has been shown that under the following two assumptions: (a) access…

Machine Learning · Computer Science 2021-07-14 Samira Abnar , Rianne van den Berg , Golnaz Ghiasi , Mostafa Dehghani , Nal Kalchbrenner , Hanie Sedghi