Anomaly Detection in Dynamic Graph Using Machine Learning Algorithms | ||
| Journal of AI and Data Mining | ||
| دوره 12، شماره 3، مهر 2024، صفحه 359-367 اصل مقاله (1.13 M) | ||
| نوع مقاله: Original/Review Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jadm.2024.14476.2551 | ||
| نویسندگان | ||
| Pouria Rabiei؛ Nosratali Ashrafi-Payaman* | ||
| Department of Electrical and Computer Engineering, Faculty of Engineering, Kharazmi University, Tehran, Iran. | ||
| چکیده | ||
| Today, the amount of data with graph structure has increased dramatically. Detecting structural anomalies in the graph, such as nodes and edges whose behavior deviates from the expected behavior of the network, is important in real-world applications. Thus, in our research work, we extract the structural characteristics of the dynamic graph by using graph convolutional neural networks, then by using temporal neural network Like GRU, we extract the short-term temporal characteristics of the dynamic graph and by using the attention mechanism integrated with GRU, long-term temporal dependencies are considered. Finally, by using the neural network classifier, the abnormal edge is detected in each timestamp. Conducted experiments on the two datasets, UC Irvine messages and Digg with three baselines, including Goutlier, Netwalk and CMSketch illustrate our model outperform existing methods in a dynamic graph by 10 and 15% on average on the UCI and Digg datasets respectively. We also measured the model with AUC and confusion matrix for 1, 5, and 10 percent anomaly injection. | ||
| کلیدواژهها | ||
| Deep learning؛ Graph neural network؛ Graph-based anomaly detection؛ Temporal graph | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 127 تعداد دریافت فایل اصل مقاله: 178 |
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