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Industrial ads ranking systems conventionally rely on labeled impression data, which leads to challenges such as overfitting, slower incremental gain from model scaling, and biases due to discrepancies between training and serving data. To…

机器学习 · 计算机科学 2025-02-12 Hamid Eghbalzadeh , Yang Wang , Rui Li , Yuji Mo , Qin Ding , Jiaxiang Fu , Liang Dai , Shuo Gu , Nima Noorshams , Sem Park , Bo Long , Xue Feng

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…

机器学习 · 计算机科学 2024-07-16 Emanuel Sanchez Aimar , Nathaniel Helgesen , Yonghao Xu , Marco Kuhlmann , Michael Felsberg

Do we need active learning? The rise of strong deep semi-supervised methods raises doubt about the usability of active learning in limited labeled data settings. This is caused by results showing that combining semi-supervised learning…

机器学习 · 计算机科学 2023-08-17 Sandra Gilhuber , Rasmus Hvingelby , Mang Ling Ada Fok , Thomas Seidl

Self-supervised learning (SSL), in particular contrastive learning, has made great progress in recent years. However, a common theme in these methods is that they inherit the learning paradigm from the supervised deep learning scenario.…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Yun-Hao Cao , Jianxin Wu

Self-supervised learning (SSL) has shown remarkable data representation capabilities across a wide range of datasets. However, when applied to real-world datasets with long-tailed distributions, performance on multiple downstream tasks…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Haowen Xiao , Guanghui Liu , Xinyi Gao , Yang Li , Fengmao Lv , Jielei Chu

Self-supervised learning (SSL) is the latest breakthrough in speech processing, especially for label-scarce downstream tasks by leveraging massive unlabeled audio data. The noise robustness of the SSL is one of the important challenges to…

Deep neural networks (DNNs) are often prone to learn the spurious correlations between target classes and bias attributes, like gender and race, inherent in a major portion of training data (bias-aligned samples), thus showing unfair…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Mei Wang , Weihong Deng , Jiani Hu , Sen Su

In supervised machine learning, models are typically trained using data with hard labels, i.e., definite assignments of class membership. This traditional approach, however, does not take the inherent uncertainty in these labels into…

机器学习 · 计算机科学 2024-09-25 Sjoerd de Vries , Dirk Thierens

Semi-supervised learning (SSL) commonly exhibits confirmation bias, where models disproportionately favor certain classes, leading to errors in predicted pseudo labels that accumulate under a self-training paradigm. Unlike supervised…

机器学习 · 计算机科学 2024-09-30 Yu Wang , Yuxuan Yin , Peng Li

Cross-entropy loss together with softmax is arguably one of the most common used supervision components in convolutional neural networks (CNNs). Despite its simplicity, popularity and excellent performance, the component does not explicitly…

机器学习 · 统计学 2017-11-21 Weiyang Liu , Yandong Wen , Zhiding Yu , Meng Yang

Contrastive learning (CL) has recently emerged as an effective approach to learning representation in a range of downstream tasks. Central to this approach is the selection of positive (similar) and negative (dissimilar) sets to provide the…

机器学习 · 计算机科学 2021-10-25 Anh Bui , Trung Le , He Zhao , Paul Montague , Seyit Camtepe , Dinh Phung

The softmax function is widely used in artificial neural networks for the multiclass classification problems, where the softmax transformation enforces the output to be positive and sum to one, and the corresponding loss function allows to…

机器学习 · 计算机科学 2021-12-24 Shaoshi Sun , Zhenyuan Zhang , BoCheng Huang , Pengbin Lei , Jianlin Su , Shengfeng Pan , Jiarun Cao

In the real world, data is often noisy, affecting not only the quality of features but also the accuracy of labels. Current research on mitigating label errors stems primarily from advances in deep learning, and a gap exists in exploring…

机器学习 · 计算机科学 2024-05-29 Lukasz Sztukiewicz , Jack Henry Good , Artur Dubrawski

Semi-Supervised Learning (SSL) has been an effective way to leverage abundant unlabeled data with extremely scarce labeled data. However, most SSL methods are commonly based on instance-wise consistency between different data…

机器学习 · 计算机科学 2023-10-26 Zhuo Huang , Li Shen , Jun Yu , Bo Han , Tongliang Liu

In this work, we observe a counterintuitive phenomenon in self-supervised learning (SSL): longer training may impair the performance of dense prediction tasks (e.g., semantic segmentation). We refer to this phenomenon as Self-supervised…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Siran Dai , Qianqian Xu , Peisong Wen , Yang Liu , Qingming Huang

Following the success of supervised learning, semi-supervised learning (SSL) is now becoming increasingly popular. SSL is a family of methods, which in addition to a labeled training set, also use a sizable collection of unlabeled data for…

机器学习 · 计算机科学 2022-05-12 Erik Wallin , Lennart Svensson , Fredrik Kahl , Lars Hammarstrand

Medical tasks are prone to inter-rater variability due to multiple factors such as image quality, professional experience and training, or guideline clarity. Training deep learning networks with annotations from multiple raters is a common…

图像与视频处理 · 电气工程与系统科学 2023-01-13 Andreanne Lemay , Charley Gros , Enamundram Naga Karthik , Julien Cohen-Adad

In semantic segmentation, training data down-sampling is commonly performed due to limited resources, the need to adapt image size to the model input, or improve data augmentation. This down-sampling typically employs different strategies…

计算机视觉与模式识别 · 计算机科学 2024-02-20 Roberto Alcover-Couso , Marcos Escudero-Vinolo , Juan C. SanMiguel , Jose M. Martinez

Deep learning (DL) techniques have gained significant popularity among software engineering (SE) researchers in recent years. This is because they can often solve many SE challenges without enormous manual feature engineering effort and…

软件工程 · 计算机科学 2024-12-10 Chao Liu , Cuiyun Gao , Xin Xia , David Lo , John Grundy , Xiaohu Yang

Most image segmentation algorithms are trained on binary masks formulated as a classification task per pixel. However, in applications such as medical imaging, this "black-and-white" approach is too constraining because the contrast between…

图像与视频处理 · 电气工程与系统科学 2020-11-19 Charley Gros , Andreanne Lemay , Julien Cohen-Adad