在分布式机器学习中使用PHT-meDIC进行保护隐私的AUC计算.
Marius de Arruda Botelho1,2,3, Cem Ata Baykara2, Ali Burak Ünal2
1Methods in Medical Informatics, Department of Computer Science, University of Tübingen, Tübingen, Germany.
PLOS digital health
|November 13, 2025
概括
我们开发了两种保护隐私的方法来计算分布式机器学习中的曲线下的面积 (AUC). 这些解决方案可以在不共享敏感数据的情况下,在机构之间进行安全的AUC计算,从而增强医疗保健分析中的隐私.
科学领域:
- 分布式机器学习 分布式机器学习
- 计算隐私 计算机隐私
- 医疗保健信息学是一种医疗信息学.
背景情况:
- 在分布式机器学习中,计算曲线下的计算区域 (AUC) 由于数据隐私问题而具有挑战性.
- 目前用于AUC计算的加密方法可能会牺牲可扩展性或准确性.
- 在多机构环境中,敏感测试数据的汇集往往受到限制.
研究的目的:
- 为分布式环境中安全的AUC计算提供新的隐私保护解决方案.
- 为了在不影响数据保密的情况下,在多个机构中实现准确的AUC计算.
- 将这些方法集成和展示在现实世界医疗保健平台中.
主要方法:
- 开发了一种精确的全球AUC方法,具有线性可扩展性和绑定处理.
- 引入了一种近似方法,以缩短运行时间并保持准确性.
- 使用同型加密 (修改的Paillier),对称/不对称密码学和随机编码.
- 整合到个人健康列车 (PHT) -meDIC平台中的协议.
主要成果:
- 精确的方法计算真实的AUC,而不暴露私人输入,有效地处理联系.
- 接近方法提供了计算效率和精度之间的平衡.
- 在现实世界和合成数据集上证明了正确性和可行性.
- 为了更广泛的采用,公开发布的代码和数据.
结论:
- 提出的方法成功实现了在分布式机器学习中保护隐私的AUC计算.
- 这些解决方案对于医疗保健等敏感领域的安全分析至关重要.
- 与PHT-meDIC的整合展示了实际应用性,并促进了进一步的研究.
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