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相关论文: GCL-OT: Graph Contrastive Learning with Optimal Tr…

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Graph collaborative filtering (GCF) is a dominant paradigm in recommender systems, where contrastive learning (CL) objectives such as the Sampled Softmax (SSM) loss are widely used for optimization. However, it remains unclear how CL…

信息检索 · 计算机科学 2026-05-26 Geon Lee , Sunwoo Kim , Kyungho Kim , Kijung Shin

Dynamic graph modeling has recently attracted much attention due to its extensive applications in many real-world scenarios, such as recommendation systems, financial transactions, and social networks. Although many works have been proposed…

机器学习 · 计算机科学 2021-05-18 Lu Wang , Xiaofu Chang , Shuang Li , Yunfei Chu , Hui Li , Wei Zhang , Xiaofeng He , Le Song , Jingren Zhou , Hongxia Yang

Recently, graph contrastive learning (GCL) has emerged as one of the optimal solutions for node-level and supervised tasks. However, for structure-related and unsupervised tasks such as graph clustering, current GCL algorithms face…

社会与信息网络 · 计算机科学 2025-09-25 Yuecheng Li , Lele Fu , Sheng Huang , Chuan Chen , Lei Yang , Zibin Zheng

Contrastive learning is a significant paradigm in graph self-supervised learning. However, it requires negative samples to prevent model collapse and learn discriminative representations. These negative samples inevitably lead to heavy…

机器学习 · 计算机科学 2024-08-12 Yunhui Liu , Huaisong Zhang , Tieke He , Tao Zheng , Jianhua Zhao

Short text classification has gained significant attention in the information age due to its prevalence and real-world applications. Recent advancements in graph learning combined with contrastive learning have shown promising results in…

计算与语言 · 计算机科学 2025-01-17 Yonghao Liu , Fausto Giunchiglia , Lan Huang , Ximing Li , Xiaoyue Feng , Renchu Guan

Advancements in technologies related to working with omics data require novel computation methods to fully leverage information and help develop a better understanding of human diseases. This paper studies the effects of introducing graph…

基因组学 · 定量生物学 2023-10-17 Nishant Rajadhyaksha , Aarushi Chitkara

Graph is a fundamental mathematical structure in characterizing relations between different objects and has been widely used on various learning tasks. Most methods implicitly assume a given graph to be accurate and complete. However, real…

机器学习 · 计算机科学 2024-03-07 Xuanting Xie , Zhao Kang , Wenyu Chen

Under circumstances of heterophily, where nodes with different labels tend to be connected based on semantic meanings, Graph Neural Networks (GNNs) often exhibit suboptimal performance. Current studies on graph heterophily mainly focus on…

机器学习 · 计算机科学 2024-11-13 Yilun Zheng , Jiahao Xu , Lihui Chen

Graph Collaborative Filtering (GCF), one of the most widely adopted recommendation system methods, effectively captures intricate relationships between user and item interactions. Graph Contrastive Learning (GCL) based GCF has gained…

信息检索 · 计算机科学 2024-10-30 Yangxun Ou , Lei Chen , Fenglin Pan , Yupeng Wu

Multimodal acoustic event classification plays a key role in audio-visual systems. Although combining audio and visual signals improves recognition, it is still difficult to align them over time and to reduce the effect of noise across…

声音 · 计算机科学 2025-09-19 Yuanjian Chen , Yang Xiao , Jinjie Huang

Graph neural network(GNN) has been a powerful approach in collaborative filtering(CF) due to its ability to model high-order user-item relationships. Recently, to alleviate the data sparsity and enhance representation learning, many efforts…

信息检索 · 计算机科学 2024-12-10 Bowen Zheng , Junjie Zhang , Hongyu Lu , Yu Chen , Ming Chen , Wayne Xin Zhao , Ji-Rong Wen

While a growing body of literature has been studying new Graph Neural Networks (GNNs) that work on both homophilic and heterophilic graphs, little has been done on adapting classical GNNs to less-homophilic graphs. Although the ability to…

机器学习 · 计算机科学 2024-04-30 Shouheng Li , Dongwoo Kim , Qing Wang

Recently, some contrastive learning methods have been proposed to simultaneously learn representations and clustering assignments, achieving significant improvements. However, these methods do not take the category information and…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Huasong Zhong , Jianlong Wu , Chong Chen , Jianqiang Huang , Minghua Deng , Liqiang Nie , Zhouchen Lin , Xian-Sheng Hua

Learning node-level representations of heterophilic graphs is crucial for various applications, including fraudster detection and protein function prediction. In such graphs, nodes share structural similarity identified by the equivalence…

机器学习 · 计算机科学 2023-08-22 Asif Khan , Amos Storkey

Attributed graph clustering holds significant importance in modern data analysis. However, due to the complexity of graph data and the heterogeneity of node attributes, leveraging graph information for clustering remains challenging. To…

机器学习 · 计算机科学 2025-08-01 Binxiong Li , Xu Xiang , Xue Li , Quanzhou Lou , Binyu Zhao , Yujie Liu , Huijie Tang , Benhan Yang

Recently, heterogeneous Graph Neural Networks (GNNs) have become a de facto model for analyzing HGs, while most of them rely on a relative large number of labeled data. In this work, we investigate Contrastive Learning (CL), a key component…

机器学习 · 计算机科学 2021-09-01 Yanqiao Zhu , Yichen Xu , Hejie Cui , Carl Yang , Qiang Liu , Shu Wu

The latest trend in the bottom-up perspective for arbitrary-shape scene text detection is to reason the links between text segments using Graph Convolutional Network (GCN). Notwithstanding, the performance of the best performing bottom-up…

多媒体 · 计算机科学 2024-04-23 Chengpei Xu , Wenjing Jia , Tingcheng Cui , Ruomei Wang , Yuan-fang Zhang , Xiangjian He

Integrating large language model (LLM) representations into multimodal recommendation has shown promise, yet a fundamental challenge remains largely overlooked: the semantic heterogeneity between generative LM representations and the…

信息检索 · 计算机科学 2026-05-26 Yuecheng Li , Hengwei Ju , Zeyu Song , Wei Yang , Chi Lu , Peng Jiang , Kun Gai

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

To improve the robustness of graph neural networks (GNN), graph structure learning (GSL) has attracted great interest due to the pervasiveness of noise in graph data. Many approaches have been proposed for GSL to jointly learn a clean graph…

机器学习 · 计算机科学 2023-07-06 Shaogao Lv , Gang Wen , Shiyu Liu , Linsen Wei , Ming Li