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Current general-purpose large language models (LLMs) commonly exhibit knowledge hallucination and insufficient domain-specific adaptability in domain-specific tasks, limiting their effectiveness in specialized question answering scenarios.…

信息检索 · 计算机科学 2025-09-16 Mengzheng Yang , Yanfei Ren , David Osei Opoku , Ruochang Li , Peng Ren , Chunxiao Xing

Accurate modeling of realistic network topologies is essential for evaluating novel Internet solutions. Current topology generators, notably scale-free-based models, fail to capture multiple properties of intra-AS topologies. While…

网络与互联网体系结构 · 计算机科学 2024-02-28 Caio Vinicius Dadauto , Nelson Luis Saldanha da Fonseca , Ricardo da Silva Torres

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

Dynamic Graphs widely exist in the real world, which carry complicated spatial and temporal feature patterns, challenging their representation learning. Dynamic Graph Neural Networks (DGNNs) have shown impressive predictive abilities by…

机器学习 · 计算机科学 2024-04-09 Haonan Yuan , Qingyun Sun , Xingcheng Fu , Cheng Ji , Jianxin Li

Temporal graph learning is crucial for dynamic networks where nodes and edges evolve over time and new nodes continuously join the system. Inductive representation learning in such settings faces two major challenges: effectively…

机器学习 · 计算机科学 2025-08-21 Jiafeng Xiong , Rizos Sakellariou

Most existing text-to-image generation methods adopt a multi-stage modular architecture which has three significant problems: 1) Training multiple networks increases the run time and affects the convergence and stability of the generative…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Zhenxing Zhang , Lambert Schomaker

Recent advancements in graph representation learning have shifted attention towards dynamic graphs, which exhibit evolving topologies and features over time. The increased use of such graphs creates a paramount need for generative models…

机器学习 · 计算机科学 2024-12-23 Ryien Hosseini , Filippo Simini , Venkatram Vishwanath , Henry Hoffmann

Data generation is a fundamental research problem in data management due to its diverse use cases, ranging from testing database engines to data-specific applications. However, real-world entities often involve complex interactions that…

数据库 · 计算机科学 2024-12-13 Fan Li , Xiaoyang Wang , Dawei Cheng , Cong Chen , Ying Zhang , Xuemin Lin

Dynamic Graph Neural Network (DGNN) has shown a strong capability of learning dynamic graphs by exploiting both spatial and temporal features. Although DGNN has recently received considerable attention by AI community and various DGNN…

分布式、并行与集群计算 · 计算机科学 2023-09-08 Fahao Chen , Peng Li , Celimuge Wu

Temporal Graph Networks (TGNs) have shown remarkable performance in learning representation for continuous-time dynamic graphs. However, real-world dynamic graphs typically contain diverse and intricate noise. Noise can significantly…

机器学习 · 计算机科学 2023-09-06 Siwei Zhang , Yun Xiong , Yao Zhang , Yiheng Sun , Xi Chen , Yizhu Jiao , Yangyong Zhu

Graph deep learning has recently emerged as a powerful ML concept allowing to generalize successful deep neural architectures to non-Euclidean structured data. Such methods have shown promising results on a broad spectrum of applications…

机器学习 · 计算机科学 2022-05-16 Anees Kazi , Luca Cosmo , Seyed-Ahmad Ahmadi , Nassir Navab , Michael Bronstein

Future link prediction is a fundamental challenge in various real-world dynamic systems. To address this, numerous temporal graph neural networks (temporal GNNs) and benchmark datasets have been developed. However, these datasets often…

机器学习 · 计算机科学 2025-03-18 Lu Yi , Jie Peng , Yanping Zheng , Fengran Mo , Zhewei Wei , Yuhang Ye , Yue Zixuan , Zengfeng Huang

Pre-training Graph Foundation Models (GFMs) on text-attributed graphs (TAGs) is central to web-scale applications such as search, recommendation, and knowledge discovery. However, existing CLIP-style graph-text aligners face two key…

机器学习 · 计算机科学 2025-10-23 Yuhang Liu , Minglai Shao , Zengyi Wo , Yunlong Chu , Bing Hao , Shengzhong Liu , Ruijie Wang , Jianxin Li

Recent advances in question answering have led to substantial progress in tasks such as multi-hop reasoning. However, global sensemaking-answering questions by synthesizing information from an entire corpus remains a significant challenge.…

计算与语言 · 计算机科学 2025-10-01 Boyoung Kim , Dosung Lee , Sumin An , Jinseong Jeong , Paul Hongsuck Seo

Predicting drug-gene associations is crucial for drug development and disease treatment. While graph neural networks (GNN) have shown effectiveness in this task, they face challenges with data sparsity and efficient contrastive learning…

机器学习 · 计算机科学 2025-02-14 Jiayang Wu , Wensheng Gan , Philip S. Yu

Well-designed open-source software drives progress in Machine Learning (ML) research. While static graph ML enjoys mature frameworks like PyTorch Geometric and DGL, ML for temporal graphs (TG), networks that evolve over time, lacks…

Dynamic graph neural networks (DGNNs) have emerged as a leading paradigm for learning from dynamic graphs, which are commonly used to model real-world systems and applications. However, due to the evolving nature of dynamic graph data…

机器学习 · 计算机科学 2025-09-30 Bo Li , Xin Zheng , Ming Jin , Can Wang , Shirui Pan

Top-leading solutions for Video Scene Graph Generation (VSGG) typically adopt an offline pipeline. Though demonstrating promising performance, they remain unable to handle real-time video streams and consume large GPU memory. Moreover,…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Mu Chen , Liulei Li , Wenguan Wang , Yi Yang

Dynamic graph embedding has gained great attention recently due to its capability of learning low dimensional graph representations for complex temporal graphs with high accuracy. However, recent advances mostly focus on learning node…

机器学习 · 计算机科学 2022-04-29 Mengjia Xu , Apoorva Vikram Singh , George Em Karniadakis

Text-attributed graphs (TAGs) present unique challenges in representation learning by requiring models to capture both the semantic richness of node-associated texts and the structural dependencies of the graph. While graph neural networks…

计算与语言 · 计算机科学 2026-05-26 Azadeh Beiranvand , Seyed Mehdi Vahidipour