[1]王天昊,窦浩,王翔,等.融合图滤波与注意力机制的图异常检测方法[J].智能系统学报,2026,21(4):919-931.[doi:10.11992/tis.202510033]
WANG TianHao,DOU Hao,WANG Xiang,et al.Graph anomaly detection method integrating graph filtering and an attention mechanism[J].CAAI Transactions on Intelligent Systems,2026,21(4):919-931.[doi:10.11992/tis.202510033]
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《智能系统学报》[ISSN 1673-4785/CN 23-1538/TP] 卷:
21
期数:
2026年第4期
页码:
919-931
栏目:
学术论文—机器学习
出版日期:
2026-07-05
- Title:
-
Graph anomaly detection method integrating graph filtering and an attention mechanism
- 作者:
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王天昊1, 窦浩1, 王翔1,2, 毛国君1,2
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1. 福建理工大学 计算机科学与数学学院, 福建 福州 350118;
2. 福建理工大学 福建省大数据挖掘与应用技术重点实验室, 福建 福州 350118
- Author(s):
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WANG TianHao1, DOU Hao1, WANG Xiang1,2, MAO Guojun1,2
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1. School of Computer Science and Mathematics, Fujian University of Technology, Fuzhou 350118, China;
2. Fujian Provincial Key Laboratory of Big Data Mining and Application, Fujian University of Technology, Fuzhou 350118, China
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- 关键词:
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图数据; 神经网络; 异常检测; 异配连接; 特征不一致; 图滤波; 注意力机制; 频域信息融合
- Keywords:
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graph data; graph neural networks; anomaly detection; heterophilic connection; feature inconsistency; graph filtering; attention mechanism; frequency domain information fusion
- 分类号:
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TP391
- DOI:
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10.11992/tis.202510033
- 摘要:
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为缓解图神经网络异常检测中普遍存在的异配连接与特征不一致问题,本文提出了一种结合图滤波与注意力机制的图异常检测方法(flexible high-low frequency and attention neural network, FHANN)。针对异配连接问题,设计了图滤波模块,可以自适应提取高频与低频信号并融合生成节点嵌入;对于特征不一致问题,从节点特征的相似度出发,引入图注意力模块用于学习节点嵌入;最后将两模块得到的节点嵌入进行融合并用于图异常检测任务。在3个真实数据集的实验结果表明,FHANN在AUC-ROC(area under the receiver operating characteristic curve)和AUC-PR(area under the precision-recall curve)两个评估指标上平均提高了1.17%和4.25%。本文研究成果可为社交网络分析、金融欺诈检测等复杂图结构数据的异常识别任务提供方法借鉴与技术参考。
- Abstract:
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To address the pervasive issues of heterophilic connections and feature inconsistency in graph neural network–based anomaly detection, this paper proposes the flexible high–low-frequency and attention neural network (FHANN), a graph anomaly detection method that integrates graph filtering and attention mechanisms. Specifically, to mitigate the effects of heterophilic connections, a graph filtering module is designed to adaptively capture and fuse high- and low-frequency signals for node representation learning. To address feature inconsistency, a graph attention module is introduced to learn the importance of node features and generate node representations based on feature similarity. The representations produced by the two modules are then fused for anomaly detection. Experiments on three real-world graph anomaly detection datasets demonstrate that FHANN achieves average improvements of 1.17% and 4.25% in area under the receiver operating characteristic curve(AUC-ROC) and area under the precision-recall curve(AUC-PR), respectively. These results verify the effectiveness of the proposed method and provide valuable insights for anomaly detection in complex graph-structured data, including social network analysis and financial fraud detection.
备注/Memo
收稿日期:2025-10-27。
基金项目:国家重点研发计划项目(2019YFD0900900/05);福建省教育厅中青年教师教育科研项目(JAT241070);福建理工大学科技项目(GY-Z21183).
作者简介:王天昊,硕士研究生,主要研究方向为人工智能和图神经网络。E-mail:2241308079@smail.fjut.edu.cn。;王翔,副教授,博士,主要研究方向为人工智能和图神经网络。CCF专业会员。 E-mail:wxsyhwl@fjut.edu.cn。;毛国君,教授,博士,主要研究方向为人工智能、数据挖掘、大数据和分布式计算。中国人工智能学会专委会常委、国家科学技术奖评审委员、计算机学会生信息物学专委会委员。发表学术论文100余篇。E-mail:19662092@fjut.edu.cn。
通讯作者:王翔. E-mail:wxsyhwl@fjut.edu.cn
更新日期/Last Update:
1900-01-01