用画图模式识别帕金森病,准确率达93.3%。
Exploring the Efficacy of Modified Transfer Learning in Identifying Parkinson's Disease Through Drawn Image Patterns
- 结合预训练模型与注意力机制,提升分类性能
- 画螺旋和波浪图的准确率分别达90%和96.67%
- 适合医疗辅助诊断、非侵入式筛查场景
帕金森病(PD)是一种进行性神经退行性疾病,因多巴胺能神经元死亡导致运动障碍。早期诊断对预防不良后果至关重要,但传统方法繁琐且成本高。本研究提出一种基于机器学习的方法,利用手绘螺旋和波浪图像作为潜在生物标志物进行PD检测。方法融合卷积神经网络(CNN)、迁移学习与注意力机制,以提升模型性能并抑制过拟合。通过数据增强扩充螺旋与波浪类别的图像数量,提升数据多样性。所提架构包含三个阶段:使用预训练CNN、引入自定义卷积层、集成投票。采用硬投票聚合多个模型预测结果,进一步提升性能。实验结果显示,螺旋图像的加权平均精确率、召回率和F1分数均为90%,波浪图像分别为96.67%。通过集成硬投票合并预测后,整体准确率达93.3%。这些结果表明,机器学习在早期PD诊断中具有潜力,可提供一种无创、低成本的解决方案,改善患者预后。
原文摘要 · Abstract (English)
Parkinson's disease (PD) is a progressive neurodegenerative condition characterized by the death of dopaminergic neurons, leading to various movement disorder symptoms. Early diagnosis of PD is crucial to prevent adverse effects, yet traditional diagnostic methods are often cumbersome and costly. In this study, a machine learning-based approach is proposed using hand-drawn spiral and wave images as potential biomarkers for PD detection. Our methodology leverages convolutional neural networks (CNNs), transfer learning, and attention mechanisms to improve model performance and resilience against overfitting. To enhance the diversity and richness of both spiral and wave categories, the training dataset undergoes augmentation to increase the number of images. The proposed architecture comprises three phases: utilizing pre-trained CNNs, incorporating custom convolutional layers, and ensemble voting. Employing hard voting further enhances performance by aggregating predictions from multiple models. Experimental results show promising accuracy rates. For spiral images, weighted average precision, recall, and F1-score are 90%, and for wave images, they are 96.67%. After combining the predictions through ensemble hard voting, the overall accuracy is 93.3%. These findings underscore the potential of machine learning in early PD diagnosis, offering a non-invasive and cost-effective solution to improve patient outcomes.
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