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随机森林模型在城市排水分区排水能力评估中的应用研究

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我国城市内涝灾害频发,城市排水防涝能力建设是内涝治理工作的重要环节,评估城市排水能力,识别薄弱环节,对分时序分重点开展内涝治理工作至关重要.本文以福州市江北城区为例,以排水分区为单元,利用随机森林模型评估其排水能力.结果表明:随机森林模型评估精度达到90%,AUC值为0.883,模型具有较高的评估精度,评估结果能够较好地反映实际积水情况.
Research on the Application of Random Forest Model in Evaluating the Drainage Capacity of Urban Drainage Zoning
Urban water-logging disasters occur frequently in China.The construction of urban drainage and water-logging prevention ca-pacity is an important part of water-logging control.It is very important to evaluate urban drainage capacity and identify weak links in or-der to carry out water-logging control work in time sequence and focus.Taking Jiangbei urban area of Fuzhou as an example,taking drainage zoning as a unit,this paper uses random forest model to evaluate its drainage capacity.The results show that:the evaluation accu-racy of random forest model is 90%,the AUC value is 0.883,the model has high evaluation accuracy,and the model evaluation results can better reflect the actual ponding situation.

drainage capacity assessmentdrainage zoningrandom forest

翁焰枝

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福州市城区水系联排联调中心 福建福州 350000

排水能力评估 排水分区 随机森林

2024

福建建设科技
福建省建设厅科技情报中心站 福建省建筑科学研究院

福建建设科技

影响因子:0.5
ISSN:1006-3943
年,卷(期):2024.(4)