Rethinking Graph Neural Networks for Anomaly Detection
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Abstract (arXiv)
Graph Neural Networks (GNNs) are widely applied for graph anomaly detection. As one of the key components for GNN design is to select a tailored spectral filter, we take the first step towards analyzing anomalies via the lens of the graph spectrum. Our crucial observation is the existence of anomalies will lead to the `right-shift' phenomenon, that is, the spectral energy distribution concentrates less on low frequencies and more on high frequencies. This fact motivates us to propose the Beta Wavelet Graph Neural Network (BWGNN). Indeed, BWGNN has spectral and spatial localized band-pass filters to better handle the `right-shift' phenomenon in anomalies. We demonstrate the effectiveness of BWGNN on four large-scale anomaly detection datasets. Our code and data are released at https://github.com/squareRoot3/Rethinking-Anomaly-Detection
Key facts. Cited by 185 papers in the map (data through 7 Oct 2026). Builds on 28 of its 58 references that are in the map. First posted on arXiv 31 May 2022.
Builds on
28 of 58 references.
References · 28
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- 2019Revisiting Graph Neural Networks: All We Have is Low-Pass Filterscited by 260
- 2020Enhancing Graph Neural Network-based Fraud Detectors against Camouflaged Fraudsterscited by 248
- 2021A Comprehensive Survey on Graph Anomaly Detection with Deep Learningcited by 230
16 more
- 2017CayleyNets: Graph Convolutional Neural Networks with Complex Rational Spectral Filterscited by 203
- 2021BernNet: Learning Arbitrary Graph Spectral Filters via Bernstein Approximationcited by 195
- 2020A Semi-supervised Graph Attentive Network for Financial Fraud Detectioncited by 150
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- 2020Alleviating the Inconsistency Problem of Applying Graph Neural Network to Fraud Detectioncited by 81
- 2020Scattering GCN: Overcoming Oversmoothness in Graph Convolutional Networkscited by 57
- 2018Diffusion Scattering Transforms on Graphscited by 43
- 2021AdaGNN: Graph Neural Networks with Adaptive Frequency Response Filtercited by 43
- 2018Outlier Aware Network Embedding for Attributed Networkscited by 29
- 2020Interpretable, Multidimensional, Multimodal Anomaly Detection with Negative Sampling for Detection of Device Failurecited by 27
- 2021Deconvolutional Networks on Graph Datacited by 16
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Citing papers per year: 2022: 7; 2023: 36; 2024: 54; 2025: 39; 2026: 49.
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