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Thanks to the efficient retrieval speed and low storage consumption, learning to hash has been widely used in visual retrieval tasks. However, existing hashing methods assume that the query and retrieval samples lie in homogeneous feature…

计算机视觉与模式识别 · 计算机科学 2022-12-29 Jianglin Lu , Jie Zhou , Yudong Chen , Witold Pedrycz , Kwok-Wai Hung

Attribute-missing graph clustering has emerged as a significant unsupervised task, where only attribute vectors of partial nodes are available and the graph structure is intact. The related models generally follow the two-step paradigm of…

机器学习 · 计算机科学 2025-10-30 Mulin Chen , Bocheng Wang , Jiaxin Zhong , Zongcheng Miao , Xuelong Li

The latest advancements in large language models (LLMs) have revolutionized the field of natural language processing (NLP). Inspired by the success of LLMs in NLP tasks, some recent work has begun investigating the potential of applying…

人工智能 · 计算机科学 2025-02-25 Shengyin Sun , Yuxiang Ren , Jiehao Chen , Chen Ma

Network embedding, which aims to learn low-dimensional representations of nodes, has been used for various graph related tasks including visualization, link prediction and node classification. Most existing embedding methods rely solely on…

社会与信息网络 · 计算机科学 2019-08-22 Palash Goyal , Homa Hosseinmardi , Emilio Ferrara , Aram Galstyan

Graph serves as a powerful tool for modeling data that has an underlying structure in non-Euclidean space, by encoding relations as edges and entities as nodes. Despite developments in learning from graph-structured data over the years, one…

机器学习 · 计算机科学 2022-12-20 Tianxiang Zhao , Dongsheng Luo , Xiang Zhang , Suhang Wang

Retrieval-Augmented Generation (RAG) has significantly enhanced Large Language Models' ability to access external knowledge, yet current graph-based RAG approaches face two critical limitations in managing hierarchical information: they…

人工智能 · 计算机科学 2026-01-09 Chunyu Wei , Huaiyu Qin , Siyuan He , Yunhai Wang , Yueguo Chen

Pre-training on text-attributed graphs (TAGs) is central to building transferable graph foundation models, where LLM-as-Aligner methods align graph and text representations through the semantic knowledge of large language models. However,…

机器学习 · 计算机科学 2026-05-21 Yuhan Wang , Haopeng Zhang , Yibo Ding , Jiaqi Yu , Xinyu Zhao , Yuhang Liu , Ziwei Zhang , Xiao Wang , Ruijie Wang

LiDAR-based perception in autonomous systems is constrained by fixed vertical beam resolution and further compromised by beam dropout resulting from environmental occlusions. This paper introduces SuperiorGAT, a graph attention-based…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Khalfalla Awedat , Mohamed Abidalrekab , Gurcan Comert , Mustafa Ayad

Topological Data Analysis (TDA) is a rigorous framework that borrows techniques from geometric and algebraic topology, category theory, and combinatorics in order to study the "shape" of such complex high-dimensional data. Research in this…

代数拓扑 · 数学 2022-04-15 R. W. R. Darling , John A. Emanuello , Emilie Purvine , Ahmad Ridley

Anomaly detection on attributed graphs plays an essential role in applications such as fraud detection, intrusion monitoring, and misinformation analysis. However, text-attributed graphs (TAGs), in which node information is expressed in…

We investigate the fundamental statistical features of tagged (or annotated) networks having a rich variety of attributes associated with their nodes. Tags (attributes, annotations, properties, features, etc.) provide essential information…

物理与社会 · 物理学 2008-12-23 Gergely Palla , Illes J. Farkas , Peter Pollner , Imre Derenyi , Tamas Vicsek

Heterogeneous Text-Attributed Graphs (HTAGs), where different types of entities are not only associated with texts but also connected by diverse relationships, have gained widespread popularity and application across various domains.…

机器学习 · 计算机科学 2024-12-13 Yunhui Liu , Qizhuo Xie , Jinwei Shi , Jiaxu Shen , Tieke He

Graph embeddings play a critical role in graph representation learning, allowing machine learning models to explore and interpret graph-structured data. However, existing methods often rely on opaque, high-dimensional embeddings, limiting…

机器学习 · 计算机科学 2025-11-26 Astrit Tola , Funmilola Mary Taiwo , Cuneyt Gurcan Akcora , Baris Coskunuzer

Graph representation learning (a.k.a. network embedding) is a significant topic of network analysis, due to its effectiveness to support various graph inference tasks. In this paper, we study the representation learning with multiple…

社会与信息网络 · 计算机科学 2023-05-17 Meng Qin

Dynamic recommendation systems aim to provide personalized suggestions by modeling temporal user-item interactions across time-series behavioral data. Recent studies have leveraged pre-trained dynamic graph neural networks (GNNs) to learn…

信息检索 · 计算机科学 2025-11-18 Zhen Tao , Xinke Jiang , Qingshuai Feng , Haoyu Zhang , Lun Du , Yuchen Fang , Hao Miao , Bangquan Xie , Qingqiang Sun

Graph signal processing deals with algorithms and signal representations that leverage graph structures for multivariate data analysis. Often said graph topology is not readily available and may be time-varying, hence (dynamic) graph…

信号处理 · 电气工程与系统科学 2024-09-20 Hector Chahuara , Gonzalo Mateos

The development of veracious models of the Internet topology has received a lot of attention in the last few years. Many proposed models are based on topologies derived from RouteViews BGP table dumps (BTDs). However, BTDs do not capture…

网络与互联网体系结构 · 计算机科学 2007-05-23 Xenofontas Dimitropoulos , Dmitri Krioukov , George Riley

Continual learning on graphs tackles the problem of training a graph neural network (GNN) where graph data arrive in a streaming fashion and the model tends to forget knowledge from previous tasks when updating with new data. Traditional…

机器学习 · 计算机科学 2024-01-09 Xiaoxue Han , Zhuo Feng , Yue Ning

Advanced Persistent Threat (APT) have grown increasingly complex and concealed, posing formidable challenges to existing Intrusion Detection Systems in identifying and mitigating these attacks. Recent studies have incorporated graph…

密码学与安全 · 计算机科学 2025-09-18 Wenhan Jiang , Tingting Chai , Hongri Liu , Kai Wang , Hongke Zhang

Retrieval-Augmented Generation (RAG) enhances the reasoning ability of Large Language Models (LLMs) by dynamically integrating external knowledge, thereby mitigating hallucinations and strengthening contextual grounding for structured data…

人工智能 · 计算机科学 2026-02-24 Sen Zhao , Lincheng Zhou , Yue Chen , Ding Zou