使用三种机器学习技术进行洪水易感性评估,并比较它们的性能
Tade Mule Asrade1, Sintayehu Adefires Abebe2, Kassahun Birhanu Tadesse3
1Department of Hydraulic and Water Resources Engineering , Debre Markos University , Debre Markos, Ethiopia. tadie_muluie@dmu.edu.et.
Scientific reports
|February 10, 2026
概括
机器学习模型准确地预测洪水易感性. 梯度提升和极端梯度提升实现了0.97的准确性,在有效的洪水风险管理方面表现优于随机森林.
科学领域:
- 环境科学 环境科学
- 地理空间分析是什么
- 机器学习应用 机器学习应用
背景情况:
- 洪水是一种常见的自然灾害,造成了严重的环境和基础设施破坏.
- 洪水易感性映射 (FSM) 对于定量洪水风险评估和管理至关重要.
- 开发先进的预测模型对于提高FSM准确性至关重要.
研究的目的:
- 开发和比较用于洪水预测的最先进的整体机器学习模型.
- 确定最有效的机器学习方法,以准确地绘制克流域洪水易感性的地图.
- 为了提高洪水风险评估,利用各种地理空间和环境数据.
主要方法:
- 利用多种数据集,包括海拔,斜率,土地覆盖面,土壤和水文因素作为条件变量.
- 采用了三种机器学习算法:随机森林 (RF),梯度提升 (GB) 和极端梯度提升 (XGBoost).
- 使用混矩阵指标和接收器操作特征曲线 (AUROC) 下的区域评估模型性能.
主要成果:
- 梯度提升 (GB) 和极度梯度提升 (XGBoost) 模型显示了0.97.9的最高测试准确度.
- 随机森林 (RF) 模型实现了0.96.9的测试准确度.
- 这项研究代表了这些先进的ML模型在Choke流域的FSM的首次应用.
结论:
- 集成机器学习模型,特别是GB和XGBoost,对于准确地绘制洪水易感性地图非常有效.
- 这些发现为克流域的洪水风险管理提供了坚实的框架,可以适应其他地区和自然灾害.
- 这项研究有助于全球减轻灾害风险和环境可持续性的努力,特别适用于埃塞俄比亚.
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