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Graph Contrastive Learning (GCL) excels at managing noise and fluctuations in input data, making it popular in various fields (e.g., social networks, and knowledge graphs). Our study finds that the difference in high-frequency information…

机器学习 · 计算机科学 2024-10-15 Yuntao Shou , Xiangyong Cao , Deyu Meng

In the past decade, deep neural networks have achieved significant progress in point cloud learning. However, collecting large-scale precisely-annotated training data is extremely laborious and expensive, which hinders the scalability of…

计算机视觉与模式识别 · 计算机科学 2024-06-18 Aoran Xiao , Xiaoqin Zhang , Ling Shao , Shijian Lu

Federated learning is a paradigm that enables local devices to jointly train a server model while keeping the data decentralized and private. In federated learning, since local data are collected by clients, it is hardly guaranteed that the…

机器学习 · 计算机科学 2022-03-01 Seunghan Yang , Hyoungseob Park , Junyoung Byun , Changick Kim

Recent progress in semi- and self-supervised learning has caused a rift in the long-held belief about the need for an enormous amount of labeled data for machine learning and the irrelevancy of unlabeled data. Although it has been…

机器学习 · 计算机科学 2023-03-14 Minwook Kim , Juseong Kim , Giltae Song

Accurate segmentation of the optic disc and cup is critical for the early diagnosis and management of ocular diseases such as glaucoma. However, segmentation models trained on one dataset often suffer significant performance degradation…

计算机视觉与模式识别 · 计算机科学 2025-09-15 Rini Smita Thakur , Rajeev Ranjan Dwivedi , Vinod K Kurmi

In the field of continual learning, relying on so-called oracles for novelty detection is commonplace albeit unrealistic. This paper introduces CONCLAD ("COntinuous Novel CLAss Detector"), a comprehensive solution to the under-explored…

机器学习 · 计算机科学 2024-12-17 Amanda Rios , Ibrahima Ndiour , Parual Datta , Omesh Tickoo , Nilesh Ahuja

Dynamic text-attributed graphs (DyTAGs) are prevalent in various real-world scenarios, where each node and edge are associated with text descriptions, and both the graph structure and text descriptions evolve over time. Despite their broad…

人工智能 · 计算机科学 2024-11-05 Jiasheng Zhang , Jialin Chen , Menglin Yang , Aosong Feng , Shuang Liang , Jie Shao , Rex Ying

Audio deepfake detection is increasingly important as synthetic speech becomes more realistic and accessible. Recent methods, including those using graph neural networks (GNNs) to model frequency and temporal dependencies, show strong…

声音 · 计算机科学 2026-01-13 Falih Gozi Febrinanto , Kristen Moore , Chandra Thapa , Jiangang Ma , Vidya Saikrishna

To learn target discriminative representations, using pseudo-labels is a simple yet effective approach for unsupervised domain adaptation. However, the existence of false pseudo-labels, which may have a detrimental influence on learning…

计算机视觉与模式识别 · 计算机科学 2019-08-02 Jaehoon Choi , Minki Jeong , Taekyung Kim , Changick Kim

Temporal Graph Learning (TGL) is crucial for capturing the evolving nature of stock markets. Traditional methods often ignore the interplay between dynamic temporal changes and static relational structures between stocks. To address this…

机器学习 · 计算机科学 2025-03-04 Yunhua Pei , Jin Zheng , John Cartlidge

Cross-silo federated learning (FL) enables decentralized organizations to collaboratively train models while preserving data privacy and has made significant progress in medical image classification. One common assumption is task…

机器学习 · 计算机科学 2024-06-28 Zhaobin Sun , Nannan Wu , Junjie Shi , Li Yu , Xin Yang , Kwang-Ting Cheng , Zengqiang Yan

Video understanding has shown remarkable improvements in recent years, largely dependent on the availability of large scaled labeled datasets. Recent advancements in visual-language models, especially based on contrastive pretraining, have…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Shreyank N Gowda , Boyan Gao , Xiao Gu , Xiaobo Jin

Graph contrastive learning (GCL) has been widely applied to text classification tasks due to its ability to generate self-supervised signals from unlabeled data, thus facilitating model training. However, existing GCL-based text…

机器学习 · 计算机科学 2024-10-25 Wei Ai , Jianbin Li , Ze Wang , Jiayi Du , Tao Meng , Yuntao Shou , Keqin Li

Label Distribution Learning (LDL) is an effective approach for handling label ambiguity, as it can analyze all labels at once and indicate the extent to which each label describes a given sample. Most existing LDL methods consider the…

机器学习 · 计算机科学 2024-11-21 Ziqi Jia , Xiaoyang Qu , Chenghao Liu , Jianzong Wang

Deep clustering, which learns representation and semantic clustering without labels information, poses a great challenge for deep learning-based approaches. Despite significant progress in recent years, most existing methods focus on…

计算机视觉与模式识别 · 计算机科学 2024-01-18 Chuyu Zhang , Hui Ren , Xuming He

Learning with noisy labels, which aims to reduce expensive labors on accurate annotations, has become imperative in the Big Data era. Previous noise transition based method has achieved promising results and presented a theoretical…

机器学习 · 计算机科学 2021-08-24 Jiangchao Yao , Ya Zhang , Ivor W. Tsang , Jun Sun

Graph Contrastive Learning (GCL) has shown strong promise for unsupervised graph representation learning, yet its effectiveness on heterophilic graphs, where connected nodes often belong to different classes, remains limited. Most existing…

机器学习 · 计算机科学 2026-05-12 Yanan Zhao , Feng Ji , Jingyang Dai , Jiaze Ma , Wee Peng Tay

Weakly supervised temporal action localization is a challenging task as only the video-level annotation is available during the training process. To address this problem, we propose a two-stage approach to fully exploit multi-resolution…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Rui Su , Dong Xu , Luping Zhou , Wanli Ouyang

Machine learning in medical imaging during clinical routine is impaired by changes in scanner protocols, hardware, or policies resulting in a heterogeneous set of acquisition settings. When training a deep learning model on an initial…

计算机视觉与模式识别 · 计算机科学 2022-03-16 Matthias Perkonigg , Johannes Hofmanninger , Christian Herold , Helmut Prosch , Georg Langs

Data stream classification is an important problem in the field of machine learning. Due to the non-stationary nature of the data where the underlying distribution changes over time (concept drift), the model needs to continuously adapt to…

机器学习 · 计算机科学 2022-09-13 Andrea Castellani , Sebastian Schmitt , Barbara Hammer