使用梯度增强机器预测医疗保健设施对气候的影响
Hao Yin1, Bhavna Sharma2, Howard Hu3
1Department of Economics, University of Southern California, Los Angeles, California, USA, 90089.
概括
梯度增强机 (GBM) 可以通过归因缺失的资源消耗数据,准确估计医院温室气体 (GHG) 排放. 该方法通过为医院提供可靠的排放数据,有助于医疗保健部门的脱碳.
科学领域:
- 环境科学环境科学
- 医疗信息学 医疗信息学
- 机器学习 机器学习
背景情况:
- 医疗保健对美国温室气体 (GHG) 排放 (9-10%) 的贡献很大.
- 医院级温室气体排放监测对于行业脱碳至关重要.
- 准确收集排放估计数据是一个挑战,特别是对于较小的医院.
研究的目的:
- 探索梯度增强机 (GBM) 在归因医院温室气体排放计算缺少的资源消耗数据方面的有效性.
- 评估使用易于获取的行政数据用于此归算过程的可行性.
主要方法:
- 在实践绿色健康中使用了来自283家医院的2020年调查数据集.
- 使用梯度增强机 (GBM) 来计算电力,牛肉和德斯弗消耗的缺失值.
- 在归算模型中使用了大多数医院可以访问的行政数据.
主要成果:
- GBM成功预测了电力和牛肉消耗 (R2=0.82) 和德斯弗使用 (R2=0.51).
- 估计来自电力,牛肉和德斯弗的温室气体排放总量超过300万公的二氧化碳等价物 (MTCO2e) 在医院.
- 电力消费占最大的碳足迹 (2.4 MTCO2e),其次是牛肉 (0.6 万MTCO2e) 和脱氨酸 (0.03 万MTCO2e).
结论:
- 梯度增强机提供了一种可行的方法,用于归纳缺少的医院资源消耗数据以估计温室气体排放.
- 该方法可以帮助各个医院估计其总排放量,并完善数据收集策略.
- 该方法支持制定针对医疗保健部门脱碳的有针对性的干预措施.
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