不确定性意识培训,以改善深度学习模型的校准,以对心脏MR图像进行分类
Tareen Dawood1, Chen Chen2, Baldeep S Sidhu3
1School of Biomedical Engineering & Imaging Sciences, King's College London, UK.
Medical image analysis
|June 16, 2023
概括
开发可靠的人工智能 (AI) 需要不确定性意识培训. 自信权重方法改善了AI模型校准和临床预测的准确性,优于其他策略.
科学领域:
- 人工智能的人工智能
- 机器学习 机器学习
- 医疗信息学 医疗信息学
背景情况:
- 量化预测不确定性对于可信的人工智能至关重要,尤其是在临床决策支持方面.
- 当前的人工智能培训策略往往忽视校准,导致自信错误的预测.
- 改进模型校准确保AI避免自信错误,并最大限度地提高对正确预测的信心.
研究的目的:
- 评估AI分类模型的新型不确定性意识培训策略.
- 将这些策略与使用精度和校准指标的最先进方法进行比较.
- 分析校准指标与准确度指标在医疗保健模型选择中的影响.
主要方法:
- 评估了三个新的不确定性意识培训策略和两个最先进的方法.
- 对所有评估模型的量化 aleatoric (数据) 和 epistemic (模型) 不确定性.
- 在临床应用中使用准确度和校准指标 (例如,预期校准误差) 评估模型性能:预测心脏再同步治疗反应和冠状动脉疾病诊断.
主要成果:
- 信任权重方法在分类准确性和校准方面都表现出卓越的表现 (减少了ECE的17-22%).
- 这种新的方法,惩罚了自信的错误预测,在两种临床应用中略有提高了准确性.
- 在选择基于不同校准措施的最佳模型时,观察到缺乏一致性.
结论:
- 不确定性意识培训策略,特别是信心权重方法,提高AI模型的可靠性和在临床环境中的性能.
- 仔细考虑性能指标对于培训和选择高风险医疗保健应用中的AI模型至关重要.
- 需要进一步的研究来协调模型选择标准在临床AI的各种校准措施.
关键词:
在这里,我们可以看到AIAIAI.在这里,我们可以看到CAD,CAD,CAD.在CRT中,CRT可以在CRT中使用.校准 校准 校准 校准 校准 校准可靠性 可靠性可靠性在信任信任信任信任信任信任信任不确定性 不确定性更多相关视频
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