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Robust multi-expert deep learning framework for brain MRI classification with Taguchi optimization

delete2025-07-02
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AI
A
Anshu Singh
M
Maheshwari Prasad Singh
A
Amit Kumar Singh
DOI:10.1016/j.neucom.2025.130824delete
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摘要

摘要

En 中文
深度学习(DL)已显著改变了图像分类,尤其是在医学影像领域。然而,高昂的计算成本、庞大的参数数量、噪声数据、医学图像中的不确定性、对抗脆弱性以及复杂的超参数优化等因素限制了卷积神经网络(CNNs)在资源受限环境中的部署。本文提出了一种新颖的多专家深度学习框架,用于脑部MRI分类,该框架集成了去噪、模糊逻辑、对抗训练和Taguchi优化方法以解决上述问题。该框架包含三个专家模型:(i)去噪专家,通过去除噪声来增强图像质量,并在去噪后达到58.09 dB的峰值信噪比(PSNR)和0.9875的结构相似性指数(SSIM);(ii)模糊逻辑专家,有效处理不确定性,在低强度MRI图像中达到94.13%的分类准确率;以及(iii)对抗训练专家,增强对抗扰动下的鲁棒性,在FGSM和PGD攻击下将准确率分别从68.89%提升至85.72%和从69.09%提升至84.35%。这些专家通过所提出的多专家融合(MEF)模型进行融合,动态选择最相关的特征以实现鲁棒分类。Taguchi优化方法用于高效调整超参数,在脑部MRI数据集上实现了97.25%和99.10%的当前最佳分类准确率,同时显著降低了计算复杂度。所提出的模型仅包含738,100个参数和2.82 MB的体积,保持轻量化结构,适用于实际医学影像应用。与现有的基于CNN的模型相比,所提出的框架在鲁棒性、计算效率和分类准确率方面表现更优,非常适合资源受限环境中的医疗保健应用。

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Neurocomputing 封面图
Neurocomputing
IF:
6.5
论文数:
2.5W
被引数:
6.5W

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