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相关论文: Graph Contrastive Topic Model

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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

Graph contrastive learning (GCL), learning the node representation by contrasting two augmented graphs in a self-supervised way, has attracted considerable attention. GCL is usually believed to learn the invariant representation. However,…

机器学习 · 计算机科学 2024-03-08 Yanhu Mo , Xiao Wang , Shaohua Fan , Chuan Shi

Contrastive learning methods based on InfoNCE loss are popular in node representation learning tasks on graph-structured data. However, its reliance on data augmentation and its quadratic computational complexity might lead to inconsistency…

机器学习 · 计算机科学 2022-12-12 Hengrui Zhang , Qitian Wu , Yu Wang , Shaofeng Zhang , Junchi Yan , Philip S. Yu

Domain adaptive semantic segmentation aims to generate accurate and dense predictions for an unlabeled target domain by leveraging a supervised model trained on a labeled source domain. The prevalent self-training approach involves…

计算机视觉与模式识别 · 计算机科学 2024-06-28 Nazanin Moradinasab , Laura S. Shankman , Rebecca A. Deaton , Gary K. Owens , Donald E. Brown

Graph contrastive learning (GCL) often suffers from false negatives, which degrades the performance on downstream tasks. The existing methods addressing the false negative issue usually rely on human prior knowledge, still leading GCL to…

机器学习 · 计算机科学 2025-05-16 Yiyang Zhao , Chengpei Wu , Lilin Zhang , Ning Yang

Graph contrastive learning (GCL), as a popular approach to graph self-supervised learning, has recently achieved a non-negligible effect. To achieve superior performance, the majority of existing GCL methods elaborate on graph data…

机器学习 · 计算机科学 2022-05-03 Yuansheng Wang , Wangbin Sun , Kun Xu , Zulun Zhu , Liang Chen , Zibin Zheng

Graph neural network (GNN) is a powerful learning approach for graph-based recommender systems. Recently, GNNs integrated with contrastive learning have shown superior performance in recommendation with their data augmentation schemes,…

信息检索 · 计算机科学 2023-06-16 Xuheng Cai , Chao Huang , Lianghao Xia , Xubin Ren

Graph Contrastive Learning (GCL) is a potent paradigm for self-supervised graph learning that has attracted attention across various application scenarios. However, GCL for learning on Text-Attributed Graphs (TAGs) has yet to be explored.…

社会与信息网络 · 计算机科学 2024-09-04 Haoran Yang , Xiangyu Zhao , Sirui Huang , Qing Li , Guandong Xu

Contrastive learning (CL) has emerged as a powerful framework for learning representations of images and text in a self-supervised manner while enhancing model robustness against adversarial attacks. More recently, researchers have extended…

机器学习 · 计算机科学 2023-12-04 Filippo Guerranti , Zinuo Yi , Anna Starovoit , Rafiq Kamel , Simon Geisler , Stephan Günnemann

In recent years, graph contrastive learning (GCL) has received increasing attention in recommender systems due to its effectiveness in reducing bias caused by data sparsity. However, most existing GCL models rely on heuristic approaches and…

信息检索 · 计算机科学 2024-07-23 Jiakai Tang , Sunhao Dai , Zexu Sun , Xu Chen , Jun Xu , Wenhui Yu , Lantao Hu , Peng Jiang , Han Li

Leading graph contrastive learning (GCL) methods perform graph augmentations in two fashions: (1) randomly corrupting the anchor graph, which could cause the loss of semantic information, or (2) using domain knowledge to maintain salient…

机器学习 · 计算机科学 2022-06-17 Sihang Li , Xiang Wang , An zhang , Yingxin Wu , Xiangnan He , Tat-Seng Chua

Graph contrastive learning (GCL) aims to align the positive features while differentiating the negative features in the latent space by minimizing a pair-wise contrastive loss. As the embodiment of an outstanding discriminative unsupervised…

机器学习 · 计算机科学 2023-12-27 Jiangmeng Li , Yifan Jin , Hang Gao , Wenwen Qiang , Changwen Zheng , Fuchun Sun

Graph-based collaborative filtering has been established as a prominent approach in recommendation systems, leveraging the inherent graph topology of user-item interactions to model high-order connectivity patterns and enhance…

信息检索 · 计算机科学 2025-03-21 Fan Huang , Wei Wang

To overcome the data sparsity issue in short text topic modeling, existing methods commonly rely on data augmentation or the data characteristic of short texts to introduce more word co-occurrence information. However, most of them do not…

计算与语言 · 计算机科学 2022-11-24 Xiaobao Wu , Anh Tuan Luu , Xinshuai Dong

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

Graph Contrastive Learning (GCL) seeks to learn nodal or graph representations that contain maximal consistent information from graph-structured data. While node-level contrasting modes are dominating, some efforts commence to explore…

机器学习 · 计算机科学 2024-09-13 Zhenhao Zhao , Minhong Zhu , Chen Wang , Sijia Wang , Jiqiang Zhang , Li Chen , Weiran Cai

Topic modeling is a Natural Language Processing (NLP) technique used to discover latent themes and abstract topics from text corpora by grouping co-occurring keywords. Although widely researched in English, topic modeling remains…

计算与语言 · 计算机科学 2026-03-31 Farhana Haque , Md. Abdur Rahman , Sumon Ahmed

Graph contrastive learning (GCL) has become a powerful tool for learning graph data, but its scalability remains a significant challenge. In this work, we propose a simple yet effective training framework called Structural Compression…

机器学习 · 计算机科学 2024-05-10 Shengzhong Zhang , Wenjie Yang , Xinyuan Cao , Hongwei Zhang , Zengfeng Huang

Various graph contrastive learning models have been proposed to improve the performance of learning tasks on graph datasets in recent years. While effective and prevalent, these models are usually carefully customized. In particular,…

机器学习 · 计算机科学 2021-11-01 Dongkuan Xu , Wei Cheng , Dongsheng Luo , Haifeng Chen , Xiang Zhang

Graph Neural Networks (GNNs) that capture the relationships between graph nodes via message passing have been a hot research direction in the natural language processing community. In this paper, we propose Graph Topic Model (GTM), a GNN…

计算与语言 · 计算机科学 2020-09-30 Deyu Zhou , Xuemeng Hu , Rui Wang