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Graph mining is an important area in data mining and machine learning that involves extracting valuable information from graph-structured data. In recent years, significant progress has been made in this field through the development of…

机器学习 · 计算机科学 2024-12-30 Yuxin You , Zhen Liu , Xiangchao Wen , Yongtao Zhang , Wei Ai

Graph-structured data exhibit substantial heterogeneity in where their predictive signals originate: in some domains, node-level semantics dominate, while in others, structural patterns play a central role. This structure-semantics…

计算与语言 · 计算机科学 2026-04-03 Safal Thapaliya , Zehong Wang , Jiazheng Li , Ziming Li , Yanfang Ye , Chuxu Zhang

Heterogeneous graph neural networks have recently gained attention for long document summarization, modeling the extraction as a node classification task. Although effective, these models often require external tools or additional machine…

计算与语言 · 计算机科学 2024-10-30 Margarita Bugueño , Hazem Abou Hamdan , Gerard de Melo

Text classification plays an important role in various downstream text-related tasks, such as sentiment analysis, fake news detection, and public opinion analysis. Recently, text classification based on Graph Neural Networks (GNNs) has made…

计算与语言 · 计算机科学 2025-12-24 Zuo Wang , Ye Yuan

Temporal graphs are widespread in real-world applications such as social networks, as well as trade and transportation networks. Predicting dynamic links within these evolving graphs is a key problem. Many memory-based methods use temporal…

机器学习 · 计算机科学 2025-12-16 Xiaohui Zhang , Yanbo Wang , Xiyuan Wang , Muhan Zhang

Text-attributed graphs (TAGs) have emerged as a powerful representation for modeling complex relationships across diverse domains. With the rise of large language models (LLMs), there is growing interest in leveraging their capabilities for…

机器学习 · 计算机科学 2025-07-29 Jianyuan Bo , Hao Wu , Yuan Fang

Graph representation learning, involving both node features and graph structures, is crucial for real-world applications but often encounters pervasive noise. State-of-the-art methods typically address noise by focusing separately on node…

机器学习 · 计算机科学 2024-10-17 Guangxin Su , Yifan Zhu , Wenjie Zhang , Hanchen Wang , Ying Zhang

Heterogeneous graph neural networks (HGNNs) excel at capturing structural and semantic information in heterogeneous graphs (HGs), while struggling to generalize across domains and tasks. With the rapid advancement of large language models…

社会与信息网络 · 计算机科学 2025-07-31 Jinyu Yang , Cheng Yang , Shanyuan Cui , Zeyuan Guo , Liangwei Yang , Muhan Zhang , Zhiqiang Zhang , Chuan Shi

Graph Retrieval-Augmented Generation (GRAG or Graph RAG) architectures aim to enhance language understanding and generation by leveraging external knowledge. However, effectively capturing and integrating the rich semantic information…

计算与语言 · 计算机科学 2025-01-29 Karishma Thakrar

Large scale pretrained models have revolutionized Natural Language Processing (NLP) and Computer Vision (CV), showcasing remarkable cross domain generalization abilities. However, in graph learning, models are typically trained on…

计算与语言 · 计算机科学 2025-10-03 Ruyue Liu , Rong Yin , Xiangzhen Bo , Xiaoshuai Hao , Yong Liu , Jinwen Zhong , Can Ma , Weiping Wang

Dynamic graph learning methods have recently emerged as powerful tools for modelling relational data evolving through time. However, despite extensive benchmarking efforts, it remains unclear whether current Temporal Graph Neural Networks…

机器学习 · 计算机科学 2025-07-23 Alireza Dizaji , Benedict Aaron Tjandra , Mehrab Hamidi , Shenyang Huang , Guillaume Rabusseau

Temporal graph clustering is a complex task that involves discovering meaningful structures in dynamic graphs where relationships and entities change over time. Existing methods typically require centralized data collection, which poses…

机器学习 · 计算机科学 2025-03-04 Zihao Zhou , Yang Liu , Xianghong Xu , Qian Li

Representation learning on text-attributed graphs (TAGs) has attracted significant interest due to its wide-ranging real-world applications, particularly through Graph Neural Networks (GNNs). Traditional GNN methods focus on encoding the…

机器学习 · 计算机科学 2024-10-07 Xingyu Ji , Jiale Liu , Lu Li , Maojun Wang , Zeyu Zhang

In many real-world scenarios (e.g., academic networks, social platforms), different types of entities are not only associated with texts but also connected by various relationships, which can be abstracted as Text-Attributed Heterogeneous…

计算与语言 · 计算机科学 2023-10-24 Tao Zou , Le Yu , Yifei Huang , Leilei Sun , Bowen Du

Developing generalizable models that can effectively learn from limited data and with minimal reliance on human supervision is a significant objective within the machine learning community, particularly in the era of deep neural networks.…

计算机视觉与模式识别 · 计算机科学 2023-11-16 Wenxuan Ma , Shuang Li , Lincan Cai , Jingxuan Kang

Graph neural networks (GNNs) have been broadly studied on dynamic graphs for their representation learning, majority of which focus on graphs with homogeneous structures in the spatial domain. However, many real-world graphs - i.e.,…

机器学习 · 计算机科学 2021-10-27 Yujie Fan , Mingxuan Ju , Chuxu Zhang , Liang Zhao , Yanfang Ye

This work studies self-supervised graph learning for text-attributed graphs (TAGs) where nodes are represented by textual attributes. Unlike traditional graph contrastive methods that perturb the numerical feature space and alter the…

机器学习 · 计算机科学 2024-06-19 Yi Fang , Dongzhe Fan , Daochen Zha , Qiaoyu Tan

The proliferation of online news poses a challenge to extracting structured timelines from unstructured content. While recent studies have shown that Large Language Models (LLMs) can assist Timeline Summarization (TLS), these approaches…

计算与语言 · 计算机科学 2026-05-14 Liancheng Zhang , Xiaoxi Li , Zhicheng Dou

Most knowledge graph completion (KGC) methods learn latent representations of entities and relations of a given graph by mapping them into a vector space. Although the majority of these methods focus on static knowledge graphs, a large…

机器学习 · 计算机科学 2023-09-29 Duygu Sezen Islakoglu , Mel Chekol , Yannis Velegrakis

Time, cost, and energy efficiency are critical considerations in Deep-Learning (DL), particularly when processing long texts. Transformers, which represent the current state of the art, exhibit quadratic computational complexity relative to…

计算与语言 · 计算机科学 2025-07-11 Fardin Rastakhiz