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For graph self-supervised learning (GSSL), masked autoencoder (MAE) follows the generative paradigm and learns to reconstruct masked graph edges or node features. Contrastive Learning (CL) maximizes the similarity between augmented views of…

机器学习 · 计算机科学 2023-10-25 Yuxiang Wang , Xiao Yan , Chuang Hu , Fangcheng Fu , Wentao Zhang , Hao Wang , Shuo Shang , Jiawei Jiang

Recent studies show that graph convolutional network (GCN) often performs worse for low-degree nodes, exhibiting the so-called structural unfairness for graphs with long-tailed degree distributions prevalent in the real world. Graph…

机器学习 · 计算机科学 2022-10-07 Ruijia Wang , Xiao Wang , Chuan Shi , Le Song

Matrix completion is a widely adopted framework in recommender systems, as predicting the missing entries in the user-item rating matrix enables a comprehensive understanding of user preferences. However, current graph neural network…

信息检索 · 计算机科学 2025-06-13 Narges Nemati , Mostafa Haghir Chehreghani

In this work, a discriminatively learned CNN embedding is proposed for remote sensing image scene classification. Our proposed siamese network simultaneously computes the classification loss function and the metric learning loss function of…

计算机视觉与模式识别 · 计算机科学 2019-12-03 Wen Wang , Lijun Du , Yinxing Gao , Yanzhou Su , Feng Wang , Jian Cheng

Both generative learning and discriminative learning have recently witnessed remarkable progress using Deep Neural Networks (DNNs). For structured input synthesis and structured output prediction problems (e.g., layout-to-image synthesis…

计算机视觉与模式识别 · 计算机科学 2021-03-16 Wei Sun , Tianfu Wu

Graph contrastive learning (GCL) aims to contrast positive-negative counterparts to learn the node embeddings, whereas graph data augmentation methods are employed to generate these positive-negative samples. The variation, quantity, and…

机器学习 · 计算机科学 2025-03-05 Adnan Ali , Jinlong Li , Huanhuan Chen , Ali Kashif Bashir

The advent of graph convolutional network (GCN)-based multi-view learning provides a powerful framework for integrating structural information from heterogeneous views, enabling effective modeling of complex multi-view data. However,…

机器学习 · 计算机科学 2025-12-17 Huaiyuan Xiao , Fadi Dornaika , Jingjun Bi

Self-supervised contrastive learning (SSCL) has achieved significant milestones in remote sensing image (RSI) understanding. Its essence lies in designing an unsupervised instance discrimination pretext task to extract image features from a…

机器学习 · 计算机科学 2023-11-29 Zhaoyang Zhang , Zhen Ren , Chao Tao , Yunsheng Zhang , Chengli Peng , Haifeng Li

Deep metric learning applied to various applications has shown promising results in identification, retrieval and recognition. Existing methods often do not consider different granularity in visual similarity. However, in many domain…

计算机视觉与模式识别 · 计算机科学 2021-05-17 Dipu Manandhar , Muhammet Bastan , Kim-Hui Yap

With the prosperity of contrastive learning for visual representation learning (VCL), it is also adapted to the graph domain and yields promising performance. However, through a systematic study of various graph contrastive learning (GCL)…

机器学习 · 计算机科学 2023-11-07 Xiaojun Guo , Yifei Wang , Zeming Wei , Yisen Wang

Graph Contrastive Learning (GCL) is an effective way to learn generalized graph representations in a self-supervised manner, and has grown rapidly in recent years. However, the underlying community semantics has not been well explored by…

社会与信息网络 · 计算机科学 2023-05-09 Han Chen , Ziwen Zhao , Yuhua Li , Yixiong Zou , Ruixuan Li , Rui Zhang

This paper studies the problem of graph-level clustering, which is a novel yet challenging task. This problem is critical in a variety of real-world applications such as protein clustering and genome analysis in bioinformatics. Recent years…

机器学习 · 计算机科学 2023-03-09 Wei Ju , Yiyang Gu , Binqi Chen , Gongbo Sun , Yifang Qin , Xingyuming Liu , Xiao Luo , Ming Zhang

Graph Contrastive Learning (GCL) is a widely adopted approach in self-supervised graph representation learning, applying contrastive objectives to produce effective representations. However, current GCL methods primarily focus on capturing…

机器学习 · 计算机科学 2025-07-11 Dongxiao He , Yongqi Huang , Jitao Zhao , Xiaobao Wang , Zhen Wang

This paper proposes a new image-based localization framework that explicitly localizes the camera/robot by fusing Convolutional Neural Network (CNN) and sequential images' geometric constraints. The camera is localized using a single or few…

计算机视觉与模式识别 · 计算机科学 2022-01-06 Jingwei Song , Mitesh Patel , Maani Ghaffari

In this work, we aim to consider the application of contrastive learning in the scenario of the recommendation system adequately, making it more suitable for recommendation task. We propose a learning paradigm called supervised contrastive…

信息检索 · 计算机科学 2022-04-20 Chun Yang

Oversmoothing is a common phenomenon observed in graph neural networks (GNNs), in which an increase in the network depth leads to a deterioration in their performance. Graph contrastive learning (GCL) is emerging as a promising way of…

机器学习 · 计算机科学 2024-02-26 Jintang Li , Wangbin Sun , Ruofan Wu , Yuchang Zhu , Liang Chen , Zibin Zheng

Contrastive learning (CL) has recently been demonstrated critical in improving recommendation performance. The underlying principle of CL-based recommendation models is to ensure the consistency between representations derived from…

信息检索 · 计算机科学 2023-06-21 Junliang Yu , Xin Xia , Tong Chen , Lizhen Cui , Nguyen Quoc Viet Hung , Hongzhi Yin

Generalized category discovery (GCD) is a recently proposed open-world problem, which aims to automatically cluster partially labeled data. The main challenge is that the unlabeled data contain instances that are not only from known…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Nan Pu , Zhun Zhong , Nicu Sebe

Generalized Zero-Shot Learning (GZSL) aims to recognize both seen and unseen classes by training only the seen classes, in which the instances of unseen classes tend to be biased towards the seen class. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2022-03-08 Yi Gao , Chenwei Tang , Jiancheng Lv

Graph contrastive learning (GCL) is a popular method for leaning graph representations by maximizing the consistency of features across augmented views. Traditional GCL methods utilize single-perspective i.e. data or model-perspective)…

机器学习 · 计算机科学 2024-06-04 Zelin Yao , Chuang Liu , Xueqi Ma , Mukun Chen , Jia Wu , Xiantao Cai , Bo Du , Wenbin Hu