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arXiv 2009.14738cs.LGstat.ML
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ResGCN:基于注意力的深度残差建模在属性网络异常检测中的应用

ResGCN: Attention-based Deep Residual Modeling for Anomaly Detection on Attributed Networks

Eindhoven University of Technology(埃因霍温理工大学);Cooperatieve Rabobank U.A.(拉博银行)

Yulong Pei, Tianjin Huang, Werner van Ipenburg, Mykola Pechenizkiy

摘要:

有效地检测属性网络中的异常节点对于许多实际应用的成功至关重要,例如欺诈和入侵检测。现有的方法有三个主要问题的困难:稀疏性和非线性捕获,残差建模和网络平滑。我们提出了残差图卷积网络(ResGCN),这是一种基于注意力的深度残差建模方法,可以解决这些问题:使用GCN对属性网络进行建模可以捕获稀疏性和非线性;利用深度神经网络可以直接从输入中学习残差,基于残差的注意力机制可以减少异常节点的不利影响并防止过度平滑。在几个真实世界的属性网络上进行的大量实验证明了ResGCN在检测异常方面的有效性。

英文摘要:

Effectively detecting anomalous nodes in attributed networks is crucial for the success of many real-world applications such as fraud and intrusion detection. Existing approaches have difficulties with three major issues: sparsity and nonlinearity capturing, residual modeling, and network smoothing. We propose Residual Graph Convolutional Network (ResGCN), an attention-based deep residual modeling approach that can tackle these issues: modeling the attributed networks with GCN allows to capture the sparsity and nonlinearity; utilizing a deep neural network allows to directly learn residual from the input, and a residual-based attention mechanism reduces the adverse effect from anomalous nodes and prevents over-smoothing. Extensive experiments on several real-world attributed networks demonstrate the effectiveness of ResGCN in detecting anomalies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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