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Recent advances in deep learning have accelerated its use in various applications, such as cellular image analysis and molecular discovery. In molecular discovery, a generative adversarial network (GAN), which comprises a discriminator to…

机器学习 · 计算机科学 2023-04-13 Daniel Manu , Jingjing Yao , Wuji Liu , Xiang Sun

Deep neural networks (DNNs) have been widely applied to various applications, including image classification, text generation, audio recognition, and graph data analysis. However, recent studies have shown that DNNs are vulnerable to…

密码学与安全 · 计算机科学 2022-10-07 Lichao Sun , Yingtong Dou , Carl Yang , Ji Wang , Yixin Liu , Philip S. Yu , Lifang He , Bo Li

Graph Convolutional Neural Networks (GCNNs) are generalizations of CNNs to graph-structured data, in which convolution is guided by the graph topology. In many cases where graphs are unavailable, existing methods manually construct graphs…

机器学习 · 计算机科学 2019-09-17 Xiang Gao , Wei Hu , Zongming Guo

Multi-agent reinforcement learning (MARL) has been increasingly explored to learn the cooperative policy towards maximizing a certain global reward. Many existing studies take advantage of graph neural networks (GNN) in MARL to propagate…

机器学习 · 计算机科学 2020-12-25 Wenlei Shi , Xinran Wei , Jia Zhang , Xiaoyuan Ni , Arthur Jiang , Jiang Bian , Tie-Yan Liu

The era of "data deluge" has sparked renewed interest in graph-based learning methods and their widespread applications ranging from sociology and biology to transportation and communications. In this context of graph-aware methods, the…

机器学习 · 计算机科学 2020-12-30 Vassilis N. Ioannidis , Antonio G. Marques , Georgios B. Giannakis

Many successful learning algorithms have been recently developed to represent graph-structured data. For example, Graph Neural Networks (GNNs) have achieved considerable successes in various tasks such as node classification, graph…

机器学习 · 计算机科学 2022-04-12 Razieh Ghiasi , Hossein Amirkhani , Alireza Bosaghzadeh

With the release of increasing open-source emotion recognition datasets on social media platforms and the rapid development of computing resources, multimodal emotion recognition tasks (MER) have begun to receive widespread research…

计算与语言 · 计算机科学 2024-09-04 Yuntao Shou , Tao Meng , Wei Ai , Nan Yin , Keqin Li

Social recommendation based on social network has achieved great success in improving the performance of recommendation system. Since social network (user-user relations) and user-item interactions are both naturally represented as…

信息检索 · 计算机科学 2021-09-27 Yiming Zhang , Lingfei Wu , Qi Shen , Yitong Pang , Zhihua Wei , Fangli Xu , Ethan Chang , Bo Long

Graph contrastive learning (GCL) has recently emerged as a new concept which allows for capitalizing on the strengths of graph neural networks (GNNs) to learn rich representations in a wide variety of applications which involve abundant…

机器学习 · 计算机科学 2024-06-26 Yuzhou Chen , Jose Frias , Yulia R. Gel

The quality of graph-structured data is fundamental to the success of modern graph analysis techniques such as Graph Neural Networks (GNNs). However, real-world graph data is often suboptimal, suffering from issues such as noise and…

机器学习 · 计算机科学 2026-05-19 Shen Han , Zhiyao Zhou , Jiawei Chen , Sheng Zhou , Canghong Jin , Hai Lin , Da Zhong Li , Bingde Hu , Can Wang

Within the context of Graph Signal Processing (GSP), Graph Learning (GL) is concerned with the inference of the graph's underlying structure from nodal observations. However, real-world data often contains diverse information, necessitating…

信号处理 · 电气工程与系统科学 2023-11-08 Mohamad H. Alizade , Aref Einizade , Jhony H. Giraldo

While the celebrated graph neural networks yield effective representations for individual nodes of a graph, there has been relatively less success in extending to the task of graph similarity learning. Recent work on graph similarity…

机器学习 · 计算机科学 2021-08-20 Xiang Ling , Lingfei Wu , Saizhuo Wang , Tengfei Ma , Fangli Xu , Alex X. Liu , Chunming Wu , Shouling Ji

One main challenge in imbalanced graph classification is to learn expressive representations of the graphs in under-represented (minority) classes. Existing generic imbalanced learning methods, such as oversampling and imbalanced learning…

机器学习 · 计算机科学 2024-05-20 Rongrong Ma , Guansong Pang , Ling Chen

Unsupervised graph representation learning is a non-trivial topic. The success of contrastive methods in the unsupervised representation learning on structured data inspires similar attempts on the graph. Existing graph contrastive learning…

机器学习 · 计算机科学 2024-04-02 Tianyu Zhang , Yuxiang Ren , Wenzheng Feng , Weitao Du , Xuecang Zhang

Graph convolutional networks (GCNs) are currently the most promising paradigm for dealing with graph-structure data, while recent studies have also shown that GCNs are vulnerable to adversarial attacks. Thus developing GCN models that are…

机器学习 · 计算机科学 2023-02-17 Jincheng Huang , Lun Du , Xu Chen , Qiang Fu , Shi Han , Dongmei Zhang

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

We propose Graph Contrastive Learning (GraphCL), a general framework for learning node representations in a self supervised manner. GraphCL learns node embeddings by maximizing the similarity between the representations of two randomly…

机器学习 · 计算机科学 2020-07-17 Hakim Hafidi , Mounir Ghogho , Philippe Ciblat , Ananthram Swami

This paper presents a general graph representation learning framework called DeepGL for learning deep node and edge representations from large (attributed) graphs. In particular, DeepGL begins by deriving a set of base features (e.g.,…

机器学习 · 统计学 2017-10-17 Ryan A. Rossi , Rong Zhou , Nesreen K. Ahmed

We present Adaptive Multi-layer Contrastive Graph Neural Networks (AMC-GNN), a self-supervised learning framework for Graph Neural Network, which learns feature representations of sample data without data labels. AMC-GNN generates two graph…

机器学习 · 计算机科学 2023-11-30 Shuhao Shi , Pengfei Xie , Xu Luo , Kai Qiao , Linyuan Wang , Jian Chen , Bin Yan

Graph neural networks (GNNs) have been applied into a variety of graph tasks. Most existing work of GNNs is based on the assumption that the given graph data is optimal, while it is inevitable that there exists missing or incomplete edges…

机器学习 · 计算机科学 2022-05-13 Qianggang Ding , Deheng Ye , Tingyang Xu , Peilin Zhao