针对分布式医疗分析的多层加密学习
1Complex System Monitoring, Modeling, and Control Laboratory, The Pennsylvania State University, University Park, PA, 16802, USA.
Scientific reports
|November 11, 2025
概括
医疗物联网 (IoMT) 产生了大量的健康数据,引发了隐私问题. 本研究介绍了一种使用加密和分布式学习保护隐私的框架,以保护数据以进行准确的医疗分析.
科学领域:
- 医疗信息学 医疗信息学
- 数据安全 数据安全
- 机器学习 机器学习
背景情况:
- 医疗物联网 (IoMT) 促进了持续的医疗数据收集,创造了数据丰富的环境.
- 跨系统的广泛数据分布引发了严重的隐私问题,特别是在集中数据聚合以进行分析期间.
- 现有的方法难以平衡强大的数据隐私与需要准确的分析洞察力.
研究的目的:
- 提出一种新的隐私保护框架,用于对加密数据的分布式医疗分析.
- 为了减轻大规模医疗数据处理中固有的数据泄露风险和隐私侵犯.
- 为了保持分析模型的准确性,同时确保严格的数据隐私.
主要方法:
- 实施分布式医疗分析的三层保护机制.
- 使用完全同型加密 (FHE) 来加密数据,使得在密码文本上进行计算.
- 开发一个支持代学习的分布式FHE框架和用于并行处理的分布式集合学习架构.
主要成果:
- 拟议的框架有效地保护了真实世界重症监护室 (ICU) 病例研究中的数据隐私.
- 在不影响数据安全的情况下保持分析模型性能.
- 保护隐私的框架实现了最高的准确率84.6%,超过了个别部门模型.
结论:
- 新的框架成功解决了与IoMT数据相关的隐私问题.
- 分布式FHE和集体学习为安全,协作式医疗分析提供了可行的解决方案.
- 这种方法避免了集中数据存储,提高了安全性,并使数据丰富的医疗保健环境中能够持续更新模型.
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