计算机科学
特征(语言学)
骨料(复合)
图形
数据挖掘
人工神经网络
保险丝(电气)
模式识别(心理学)
人工智能
机器学习
理论计算机科学
工程类
哲学
语言学
材料科学
电气工程
复合材料
作者
Yahui Wang,Hongchang Chen,Shuxin Liu,Xing Li,Yuxiang Hu
出处
期刊:Journal of Intelligent and Fuzzy Systems
[IOS Press]
日期:2023-06-20
卷期号:45 (5): 8973-8988
摘要
With the continuous escalation of telecommunication fraud modes, telecommunication fraud is becoming more and more concealed and disguised. Existing Graph Neural Networks (GNNs)-based fraud detection methods directly aggregate the neighbor features of target nodes as their own updated features, which preserves the commonality of neighbor features but ignores the differences with target nodes. This makes it difficult to effectively distinguish fraudulent users from normal users. To address this issue, a new model named Feature Difference-aware Graph Neural Network (FDAGNN) is proposed for detecting telecommunication fraud. FDAGNN first calculates the feature differences between target nodes and their neighbors, then adopts GAT method to aggregate these feature differences, and finally uses GRU approach to fuse the original features of target nodes and the aggregated feature differences as the updated features of target nodes. Extensive experiments on two real-world telecom datasets demonstrate that FDAGNN outperforms seven baseline methods in the majority of metrics, with a maximum improvement of about 5%.
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