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arXiv 2509.23968cs.CV

一种用于甲状腺癌分类的新型深度学习与混沌动力学混合方法

A Novel Hybrid Deep Learning and Chaotic Dynamics Approach for Thyroid Cancer Classification

Laboratory of Renewable Energy, Department of Electronics, University of Jijel(可再生能源实验室,电子系,杰吉尔大学);Non-Destructive Testing Laboratory, Department of Electronics, University of Jijel(无损检测实验室,电子系,杰吉尔大学);Institute of Technology, University Center Salhi Ahmed(技术学院,Salhi Ahmed大学中心);College of Engineering and Information Technology, University of Dubai(工程与信息科技学院,迪拜大学)

Nada Bouchekout, Abdelkrim Boukabou, Morad Grimes, Yassine Habchi, Yassine Himeur, Hamzah Ali Alkhazaleh, Shadi Atalla, Wathiq Mansoor

AI总结:

本文提出融合 CDF9/7 小波、n 涡卷混沌调制与自适应 CNN 的甲状腺超声分类框架,在 DDTI 上达到 98.17% 准确率,并通过跨数据集与可解释性验证其泛化性和临床适用性。

摘要:

及时准确的诊断对于应对全球甲状腺癌发病率上升至关重要,可确保有效的治疗策略并改善患者预后。我们提出一种智能分类方法,将自适应卷积神经网络(CNN)与 Cohen-Daubechies-Feauveau(CDF9/7)小波相结合,其细节系数由 n 涡卷混沌系统调制,以丰富判别特征。我们在公开的 DDTI 甲状腺超声数据集(n = 1,638 张图像;819 张恶性 / 819 张良性)上使用 5 折交叉验证进行评估,所提方法达到 98.17% 准确率、98.76% 敏感性、97.58% 特异性、97.55% F1 分数以及 0.9912 的 AUC。受控消融实验表明,在 CDF9/7 中加入混沌调制后,相比仅使用 CDF9/7 的 CNN,准确率提升了 8.79 个百分点(从 89.38% 提升至 98.17%)。为客观定位本方法,我们在相同数据和划分上训练了最先进的骨干网络:EfficientNetV2-S(96.58% 准确率;AUC 0.987)、Swin-T(96.41%;0.986)、ViT-B/16(95.72%;0.983)和 ConvNeXt-T(96.94%;0.987)。我们的方法比其中最优者的准确率高 1.23 个百分点、AUC 高 0.0042,同时保持较高计算效率(每张图像 28.7 ms;峰值显存 1,125 MB)。在 TCIA 上的跨数据集测试(准确率 95.82%)以及向 ISIC 皮肤病变子集(n = 28 张独立图像,增强至 2,048 张;准确率 97.31%)的迁移进一步证明了鲁棒性。可解释性分析(Grad-CAM、SHAP、LIME)突出了临床相关区域。综上,这种小波-混沌-CNN 流程实现了最先进的甲状腺超声分类,具有较强泛化能力和适合临床集成的实用运行时特性。

英文摘要:

Timely and accurate diagnosis is crucial in addressing the global rise in thyroid cancer, ensuring effective treatment strategies and improved patient outcomes. We present an intelligent classification method that couples an Adaptive Convolutional Neural Network (CNN) with Cohen-Daubechies-Feauveau (CDF9/7) wavelets whose detail coefficients are modulated by an n-scroll chaotic system to enrich discriminative features. We evaluate on the public DDTI thyroid ultrasound dataset (n = 1,638 images; 819 malignant / 819 benign) using 5-fold cross-validation, where the proposed method attains 98.17% accuracy, 98.76% sensitivity, 97.58% specificity, 97.55% F1-score, and an AUC of 0.9912. A controlled ablation shows that adding chaotic modulation to CDF9/7 improves accuracy by +8.79 percentage points over a CDF9/7-only CNN (from 89.38% to 98.17%). To objectively position our approach, we trained state-of-the-art backbones on the same data and splits: EfficientNetV2-S (96.58% accuracy; AUC 0.987), Swin-T (96.41%; 0.986), ViT-B/16 (95.72%; 0.983), and ConvNeXt-T (96.94%; 0.987). Our method outperforms the best of these by +1.23 points in accuracy and +0.0042 in AUC, while remaining computationally efficient (28.7 ms per image; 1,125 MB peak VRAM). Robustness is further supported by cross-dataset testing on TCIA (accuracy 95.82%) and transfer to an ISIC skin-lesion subset (n = 28 unique images, augmented to 2,048; accuracy 97.31%). Explainability analyses (Grad-CAM, SHAP, LIME) highlight clinically relevant regions. Altogether, the wavelet-chaos-CNN pipeline delivers state-of-the-art thyroid ultrasound classification with strong generalization and practical runtime characteristics suitable for clinical integration.

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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