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Real-world data typically follow a long-tailed distribution, where a few majority categories occupy most of the data while most minority categories contain a limited number of samples. Classification models minimizing cross-entropy struggle…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Jianggang Zhu , Zheng Wang , Jingjing Chen , Yi-Ping Phoebe Chen , Yu-Gang Jiang

Class imbalance is a fundamental problem in computer vision applications such as semantic segmentation. Specifically, uneven class distributions in a training dataset often result in unsatisfactory performance on under-represented classes.…

计算机视觉与模式识别 · 计算机科学 2022-02-07 Junjiao Tian , Niluthpol Mithun , Zach Seymour , Han-Pang Chiu , Zsolt Kira

Few-shot learning (FSL) approaches are usually based on an assumption that the pre-trained knowledge can be obtained from base (seen) categories and can be well transferred to novel (unseen) categories. However, there is no guarantee,…

计算机视觉与模式识别 · 计算机科学 2020-11-26 Bowen Wang , Liangzhi Li , Manisha Verma , Yuta Nakashima , Ryo Kawasaki , Hajime Nagahara

We propose regression networks for the problem of few-shot classification, where a classifier must generalize to new classes not seen in the training set, given only a small number of examples of each class. In high dimensional embedding…

机器学习 · 计算机科学 2020-06-22 Arnout Devos , Matthias Grossglauser

Deep convolutional neural networks have achieved remarkable success in face recognition (FR), partly due to the abundant data availability. However, the current training benchmarks exhibit an imbalanced quality distribution; most images are…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Sahar Rahimi Malakshan , Mohammad Saeed Ebrahimi Saadabadi , Nima Najafzadeh , Nasser M. Nasrabadi

Learning robust feature representation from large-scale noisy faces stands out as one of the key challenges in high-performance face recognition. Recent attempts have been made to cope with this challenge by alleviating the intra-class…

计算机视觉与模式识别 · 计算机科学 2022-08-10 Bingqi Ma , Guanglu Song , Boxiao Liu , Yu Liu

Pre-training convolutional neural networks with weakly-supervised and self-supervised strategies is becoming increasingly popular for several computer vision tasks. However, due to the lack of strong discriminative signals, these learned…

计算机视觉与模式识别 · 计算机科学 2019-12-10 Xueting Yan , Ishan Misra , Abhinav Gupta , Deepti Ghadiyaram , Dhruv Mahajan

When it comes to wild conditions, Facial Expression Recognition is often challenged with low-quality data and imbalanced, ambiguous labels. This field has much benefited from CNN based approaches; however, CNN models have structural…

计算机视觉与模式识别 · 计算机科学 2022-04-06 Hyeonbin Hwang , Soyeon Kim , Wei-Jin Park , Jiho Seo , Kyungtae Ko , Hyeon Yeo

In this paper, we propose mean squared error (MSE) loss with outlying label for class imbalanced classification. Cross entropy (CE) loss, which is widely used for image recognition, is learned so that the probability value of true class is…

计算机视觉与模式识别 · 计算机科学 2021-07-07 Sota Kato , Kazuhiro Hotta

Background and objective: Employing deep learning models in critical domains such as medical imaging poses challenges associated with the limited availability of training data. We present a strategy for improving the performance and…

计算机视觉与模式识别 · 计算机科学 2024-03-27 Eva Pachetti , Sotirios A. Tsaftaris , Sara Colantonio

Continual learning and few-shot learning are important frontiers in progress toward broader Machine Learning (ML) capabilities. Recently, there has been intense interest in combining both. One of the first examples to do so was the…

神经与进化计算 · 计算机科学 2024-07-10 Gideon Kowadlo , Abdelrahman Ahmed , Amir Mayan , David Rawlinson

This paper presents one-bit supervision, a novel setting of learning from incomplete annotations, in the scenario of image classification. Instead of training a model upon the accurate label of each sample, our setting requires the model to…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Hengtong Hu , Lingxi Xie , Zewei Du , Richang Hong , Qi Tian

Few-shot classification is a challenging problem that aims to learn a model that can adapt to unseen classes given a few labeled samples. Recent approaches pre-train a feature extractor, and then fine-tune for episodic meta-learning. Other…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Philip Chikontwe , Soopil Kim , Sang Hyun Park

No single classifier can alone solve the complex problem of face recognition. Researchers found that combining some base classifiers usually enhances their recognition rate. The weaknesses of the base classifiers are reflected on the…

计算机视觉与模式识别 · 计算机科学 2016-07-26 Ahmad H. A. Eid

Face alignment is crucial for face recognition and has been widely adopted. However, current practice is too simple and under-explored. There lacks an understanding of how important face alignment is and how it should be performed, for…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Huawei Wei , Peng Lu , Yichen Wei

Neural network-based anomaly detection methods have shown to achieve high performance. However, they require a large amount of training data for each task. We propose a neural network-based meta-learning method for supervised anomaly…

机器学习 · 统计学 2021-03-02 Tomoharu Iwata , Atsutoshi Kumagai

Training an effective video action recognition model poses significant computational challenges, particularly under limited resource budgets. Current methods primarily aim to either reduce model size or utilize pre-trained models, limiting…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Harry Cheng , Yangyang Guo , Liqiang Nie , Zhiyong Cheng , Mohan Kankanhalli

Humans exhibit a remarkable ability to learn quickly from a limited number of labeled samples, a capability that starkly contrasts with that of current machine learning systems. Unsupervised Few-Shot Learning (U-FSL) seeks to bridge this…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Zhenyu Zhang , Guangyao Chen , Yixiong Zou , Zhimeng Huang , Yuhua Li , Ruixuan Li

The growing privacy concerns surrounding face image data demand new techniques that can guarantee user privacy. One such face recognition technique that claims to achieve better user privacy is Federated Face Recognition (FRR), a subfield…

计算机视觉与模式识别 · 计算机科学 2024-08-30 Arwin Gansekoele , Emiel Hess , Sandjai Bhulai

The focus of recent meta-learning research has been on the development of learning algorithms that can quickly adapt to test time tasks with limited data and low computational cost. Few-shot learning is widely used as one of the standard…

计算机视觉与模式识别 · 计算机科学 2020-06-18 Yonglong Tian , Yue Wang , Dilip Krishnan , Joshua B. Tenenbaum , Phillip Isola