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Graph-based semi-supervised learning is one of the most popular methods in machine learning. Some of its theoretical properties such as bounds for the generalization error and the convergence of the graph Laplacian regularizer have been…

机器学习 · 统计学 2019-04-12 Chengan Du , Yunpeng Zhao , Feng Wang

Semi-supervised learning, i.e. jointly learning from labeled and unlabeled samples, is an active research topic due to its key role on relaxing human supervision. In the context of image classification, recent advances to learn from…

计算机视觉与模式识别 · 计算机科学 2020-06-30 Eric Arazo , Diego Ortego , Paul Albert , Noel E. O'Connor , Kevin McGuinness

We propose a semi-supervised text classifier based on self-training using one positive and one negative property of neural networks. One of the weaknesses of self-training is the semantic drift problem, where noisy pseudo-labels accumulate…

计算与语言 · 计算机科学 2024-01-02 Payam Karisani

Training neural networks with one-hot target labels often results in overconfidence and overfitting. Label smoothing addresses this issue by perturbing the one-hot target labels by adding a uniform probability vector to create a regularized…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Sachin Chhabra , Hemanth Venkateswara , Baoxin Li

Semi-supervised text classification (SSTC) has gained increasing attention due to its ability to leverage unlabeled data. However, existing approaches based on pseudo-labeling suffer from the issues of pseudo-label bias and error…

计算与语言 · 计算机科学 2023-10-24 Henry Peng Zou , Cornelia Caragea

The human ability to synchronize the feedback from all their senses inspired recent works in multi-task and multi-modal learning. While these works rely on expensive supervision, our multi-task graph requires only pseudo-labels from expert…

机器学习 · 计算机科学 2021-11-05 Emanuela Haller , Elena Burceanu , Marius Leordeanu

In this work, we improve the accuracy of several known algorithms to address the classification of large datasets when few labels are available. Our framework lies in the realm of graph-based semi-supervised learning. With novel…

机器学习 · 计算机科学 2024-07-02 Farid Bozorgnia

The training of deep learning models generally requires a large amount of annotated data for effective convergence and generalisation. However, obtaining high-quality annotations is a laboursome and expensive process due to the need of…

计算机视觉与模式识别 · 计算机科学 2021-11-05 Fengbei Liu , Yu Tian , Filipe R. Cordeiro , Vasileios Belagiannis , Ian Reid , Gustavo Carneiro

Training deep neural networks (DNNs) in the presence of noisy labels is an important and challenging task. Probabilistic modeling, which consists of a classifier and a transition matrix, depicts the transformation from true labels to noisy…

计算机视觉与模式识别 · 计算机科学 2020-03-27 Xianbin Lv , Dongxian Wu , Shu-Tao Xia

Graph neural networks (GNNs) have achieved state-of-the-art performance for node classification on graphs. The vast majority of existing works assume that genuine node labels are always provided for training. However, there has been very…

机器学习 · 计算机科学 2021-03-08 Yayong Li , Jie yin , Ling Chen

In this work, we propose a simple yet effective semi-supervised learning approach called Augmented Distribution Alignment. We reveal that an essential sampling bias exists in semi-supervised learning due to the limited number of labeled…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Qin Wang , Wen Li , Luc Van Gool

Previous graph neural networks (GNNs) usually assume that the graph data is with clean labels for representation learning, but it is not true in real applications. In this paper, we propose a new multi-teacher distillation method based on…

机器学习 · 计算机科学 2024-05-09 Yujing Liu , Zongqian Wu , Zhengyu Lu , Ci Nie , Guoqiu Wen , Ping Hu , Xiaofeng Zhu

Semi-supervised learning (SSL) is a popular setting aiming to effectively utilize unlabelled data to improve model performance in downstream natural language processing (NLP) tasks. Currently, there are two popular approaches to make use of…

计算与语言 · 计算机科学 2023-05-23 Zhengxiang Shi , Francesco Tonolini , Nikolaos Aletras , Emine Yilmaz , Gabriella Kazai , Yunlong Jiao

To better handle long-tail cases in the sequence labeling (SL) task, in this work, we introduce graph neural networks sequence labeling (GNN-SL), which augments the vanilla SL model output with similar tagging examples retrieved from the…

计算与语言 · 计算机科学 2022-12-13 Shuhe Wang , Yuxian Meng , Rongbin Ouyang , Jiwei Li , Tianwei Zhang , Lingjuan Lyu , Guoyin Wang

Often when multiple labels are obtained for a training example it is assumed that there is an element of noise that must be accounted for. It has been shown that this disagreement can be considered signal instead of noise. In this work we…

计算与语言 · 计算机科学 2019-01-28 John P. Lalor , Hao Wu , Hong Yu

Scene graph generation aims to identify objects and their relations in images, providing structured image representations that can facilitate numerous applications in computer vision. However, scene graph models usually require supervised…

计算机视觉与模式识别 · 计算机科学 2021-08-23 Yuan Yao , Ao Zhang , Xu Han , Mengdi Li , Cornelius Weber , Zhiyuan Liu , Stefan Wermter , Maosong Sun

Despite the significant progress that depth-based 3D hand pose estimation methods have made in recent years, they still require a large amount of labeled training data to achieve high accuracy. However, collecting such data is both costly…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Mohammad Rezaei , Farnaz Farahanipad , Alex Dillhoff , Vassilis Athitsos

Semi-supervised learning (SSL) has been widely explored in recent years, and it is an effective way of leveraging unlabeled data to reduce the reliance on labeled data. In this work, we adjust neural processes (NPs) to the semi-supervised…

计算机视觉与模式识别 · 计算机科学 2023-06-27 Jianfeng Wang , Xiaolin Hu , Thomas Lukasiewicz

The recently proposed Mean Teacher method, which exploits large-scale unlabeled data in a self-ensembling manner, has achieved state-of-the-art results in several semi-supervised learning benchmarks. Spurred by current achievements, this…

机器学习 · 计算机科学 2022-02-25 Rui Tao , Long Yan , Kazushige Ouchi , Xiangdong Wang

Semi-supervised semantic segmentation aims to utilize limited labeled images and abundant unlabeled images to achieve label-efficient learning, wherein the weak-to-strong consistency regularization framework, popularized by FixMatch, is…

计算机视觉与模式识别 · 计算机科学 2023-12-15 Wentao Pan , Zhe Xu , Jiangpeng Yan , Zihan Wu , Raymond Kai-yu Tong , Xiu Li , Jianhua Yao