使用贝叶斯神经网络来选择特征并计算可信度间隔以进行个性化生存预测
IEEE transactions on bio-medical engineering
|June 20, 2023
概括
我们开发了一个贝叶斯神经网络模型,用于个人生存分布 (ISD),它提供了准确的患者生存估计,并量化了预测不确定性. 这种方法有助于特征选择,并通过评估模型信心来增强临床决策.
科学领域:
- 机器学习 机器学习
- 生物统计学 生物统计学
- 临床信息学 临床信息学
背景情况:
- 个人生存分布 (ISD) 模型个性化生存概率预测.
- 现有的神经网络ISD模型缺乏透明度,由于特征选择和不确定性量化有限,阻碍了临床采用.
研究的目的:
- 介绍一个基于贝叶斯神经网络的ISD (BNN-ISD) 模型.
- 启用特征选择,并为ISD预测提供不确定性估计.
- 加强个性化生存模型的临床采用.
主要方法:
- 开发了一个BNN-ISD模型,其中包含了用于特征选择的稀疏性诱导先验.
- 在可信的间隔计算的参数估计中的量化不确定性.
- 在2个合成和3个现实世界的临床数据集上得到验证.
主要成果:
- BNN-ISD准确地估计了生存概率,并量化了预测不确定性.
- 该模型有效地执行特征选择,识别重要的临床因素.
- 经验证据显示,患者特异性生存分布的可靠可信间隔值得信赖.
- 实现了最先进的生存预测性能.
结论:
- BNN-ISD提供准确,可解释和不确定性意识的个性化生存预测.
- 该模型的特征重要性排名和可信度间隔支持临床决策.
- 这种方法解决了不透明的ISD模型的局限性,促进了更广泛的临床使用.
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