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1.中北大学 软件学院,山西 太原 030051
2.中北大学 半导体与物理学院,山西 太原 030051
王璐(1998-), 女, 硕士生, 主要从事网络安全领域的研究。
赵利辉(1979-), 男, 副教授, 博士, 主要从事网络测试与网络安全方向的研究。E⁃mail: leehwi@nuc.edu.cn。
收稿:2025-09-05,
网络首发:2026-06-13,
纸质出版:2026-08-31
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王璐, 赵利辉, 安洋, 等. 基于元学习与VAE⁃GAN的META⁃VAEGAN⁃DNN网络入侵检测方法[J]. 中北大学学报(自然科学版), 2026, 47(4): 541-552.
Wang Lu, Zhao Lihui, An Yang, et al. A meta⁃learning and VAE⁃GAN based META⁃VAEGAN⁃DNN method for network intrusion detection[J]. Journal of North University of China(Natural Science Edition), 2026, 47(4): 541-552.
王璐, 赵利辉, 安洋, 等. 基于元学习与VAE⁃GAN的META⁃VAEGAN⁃DNN网络入侵检测方法[J]. 中北大学学报(自然科学版), 2026, 47(4): 541-552. DOI: 10.62756/jnuc.issn.1673-3193.2025.09.0002.
Wang Lu, Zhao Lihui, An Yang, et al. A meta⁃learning and VAE⁃GAN based META⁃VAEGAN⁃DNN method for network intrusion detection[J]. Journal of North University of China(Natural Science Edition), 2026, 47(4): 541-552. DOI: 10.62756/jnuc.issn.1673-3193.2025.09.0002.
针对网络入侵检测中数据集不平衡导致少数类攻击识别困难的问题, 本文提出一种基于元学习与变分自编码器生成对抗网络(VAE-GAN)的网络入侵检测方法META-VAEGAN-DNN。首先, 构建META-VAEGAN数据增强模型以缓解数据集不平衡的问题; 其次, 提出差异化样本处理策略, 并针对少数类样本设计渐进式质量筛选机制, 在提升整体样本质量的同时确保少数类样本的有效生成; 最后, 通过结合通道注意力与多层残差连接的DNN模型对生成的平衡数据集进行分类。基于NSL-KDD数据集的实验表明, META-VAEGAN-DNN模型在网络攻击检测中的准确率、
F
1分数和AUC分别达到了89%, 90%和98%; 其中U2R类别的精确率和召回率分别提升至98%和99%; R2L类别的精确率和召回率分别提升至99%和73%, 显著优于传统方法。在CIC-IDS-2017数据集上的辅助验证进一步证明了模型的通用性。
Class imbalance in network intrusion detection makes minority attack classes particularly challenging to identify. To address this issue, we proposed META-VAEGAN-DNN, a nove
l intrusion detection framework that integrated meta-learning with a variational autoencoder generative adversarial network (VAE-GAN). A META-VAEGAN-based augmentation model was first developed to alleviate class imbalance, followed by a differentiated sample processing strategy with a progressive quality filtering mechanism designed to enhance the generation of minority-class instances. The augmented data were then classified using a deep neural network (DNN) enhanced with channel attention and multi-layer residual connections. Experiments on the NSL-KDD dataset demonstrate that META-VAEGAN-DNN achieves 89% accuracy, 90%
F
1-score, and 98% AUC. Notably, the precision and recall of the U2R class reach 98% and 99%, respectively, while those of the R2L class reach 99% and 73%, substantially outperforming conventional methods. These results highlight the effectiveness of META-VAEGAN-DNN in improving the detection of minority attack categories and enhancing overall intrusion detection performance. Supplementary validation on the CIC-IDS-2017 dataset further demonstrates the generalizability of the model.
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