使用深度学习和基于XAI的可解释特征选择从血液基因表达数据中预测阿尔茨海默病
1School of Computer Science and Engineering, Vellore Institute of Technology, Chennai, Vandalur-Kelambakkam Road, Chennai, Tamilnadu, 600127, India.
Scientific reports
|February 10, 2026
概括
这项研究使用机器学习识别了用于早期阿尔茨海默病 (AD) 检测的关键血液基因生物标志物. 我们的方法显著提高了这种神经退行性疾病的诊断准确性和解释性.
科学领域:
- 生物医学信息学 生物医学信息学
- 神经科学是一个神经科学.
- 基因组学就是基因组学.
背景情况:
- 阿尔茨海默病 (AD) 是一种日益增长的神经退行性疾病,需要可及的早期检测.
- 目前阿尔茨海默病的诊断方法往往是侵入性的和昂贵的.
- 血液基因表达是一种有希望的,不那么侵入性的替代生物标志物来源.
研究的目的:
- 利用血液基因表达生物标志物开发一种全面的阿尔茨海默病早期检测方法.
- 用有限的样本分析高维血基因表达数据的挑战.
- 用先进的计算技术识别AD诊断和分类的关键基因.
主要方法:
- 应用了四种特征选择方法 (Chi-square,ANOVA,RFE,ElasticNet) 来识别与AD相关的基因.
- 根据选定的基因生物标志物开发了两种用于AD分类的深度学习模型.
- 使用嵌套五倍交叉验证和夏普利添加式扩展 (XAI) 进行模型验证和基因排名.
- 采用基于生成对抗网络 (GAN) 的数据增强,以增强小样本尺寸的模型概括性.
主要成果:
- 成功确定了AD诊断的关键血液基因生物标志物.
- 在使用深度神经网络对AD样本进行分类时,获得了91%的准确性和95%的精度.
- 通过特征选择和数据增强,在精度和可解释性方面取得了显著的改进.
结论:
- 血液基因表达分析,结合高级特征选择和深度学习,为早期AD检测提供了可行的策略.
- 开发的方法提高了诊断阿尔茨海默病的准确性和可解释性.
- 这项研究为更容易获得和更具成本效益的阿尔茨海默病早期诊断工具铺平了道路.
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