一个框架来创建,评估和选择合成数据集用于瘤学生存预测
A T Christoforou1, S K B Spohn2, T Sprave2
1Department of Radiation Oncology, German Oncology Center, Limassol, Cyprus.
Computers in biology and medicine
|April 24, 2025
概括
这项研究引入了一个框架,用于在放射瘤学中生成高质量的合成数据 (SD). 该框架确保了隐私和临床实用性,促进了研究数据共享.
科学领域:
- 辐射瘤学 辐射瘤学
- 机器学习 机器学习
- 数据科学数据科学数据科学
背景情况:
- 在放射性瘤学 (RO) 中,数据驱动的决策需要有效地整合真实世界的数据.
- 通过机器学习生成的合成数据 (SD) 为模拟现实数据提供了一个保护隐私的解决方案.
研究的目的:
- 为生成,评估和选择高质量的表格SD用于RO的临床使用提供一个一般框架.
- 专注于辐射瘤学中的生存数据集.
主要方法:
- 五个回顾性RO生存数据集被清理和准备好.
- SD是使用四个机器学习模型生成的,产生了多个变体.
- 用强大的指标评估SD的隐私,临床行为和功能分布.
- 一个加权排名系统为每个现实数据集选择了一个单一的SD集.
主要成果:
- 该框架成功地为所有数据集生成了高质量的SD.
- 图表变量自动编码器模型产生了性能最高的SD集.
- 合成数据集和现实数据集之间存在最小的重叠 (≤5%).
- 合成和现实数据集在考克斯比例危险模型中表现相似 (一致性指数:0.701与0.699).
结论:
- 拟议的框架使得SD集的制作和选择能够密切反映现实世界的数据.
- 确保SD的隐私和临床实用性,用于放射瘤学应用.
- 通过解决隐私障碍,促进临床研究中的数据共享.
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