基于SMOTE策略的数据不完整时滑坡易发性评价

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关键词：滑坡易发性；不完整滑坡数据;随机森林；神经网络；合成少数过采样;黄河上游中图分类号：TV62;TV882.1 文献标志码：A doi：10.3969/j.issn.1000-1379.2025.07.009引用格式：，，，等.基于 SMOTE策略的数据不完整时滑坡易发性评价[J].人民黄河，2025，47（7）：50-58.

Landslide Susceptibility Assessment Using SMOTE Strategy Under Incomplete Data Conditions

MENG Jinhao’，SUN Benbo¹，WANG Juan1，HUANG Chengfang1.2 （1. School of Water Conservancy and Transportation， Zhengzhou University， Zhengzhou 45ooo1，China; 2. School of Architecture，Zhengzhou University，Zhengzhou 450oo1，China）

Abstract：Thesstfslidetiliipoasiseolalserredool，utlepe dataareofenmissngocomplete，makingitdifultfocelearingmodelstocoductauateandreliablesusptibitoeling. Basedonrandomforest（RF）andartficialneuralnetwork（AN）odels，tispperdisusedteaccuracyhangesoflandslidesuseptibility assessment results and susceptibility zoning characteristics under diferent missing ratios （ 10%-50% ） and regional missing conditions. Afterexpandingthesamplebyusingthesynthticminortyoversamplingtechique（SMOTE），tepredictionresultswerecomparedandanalyzedtoverifyteectivenessofsmpleexpansion.Theesultsshowthatwithteincreaseoftheproportionofmisingsamples，eodel accuracygradualldecrease，utthedcreaseilimitedTepredictedareasofteRFandANNmodelsintehgh-riskareasabovethe higher level are reduced by up to 7.0% and 5.5% respectively. Under regional missing conditions，the accuracy of the evaluation results varies greatly，and the maximum predicted area of high-level prone areas is reduced by 11.1% and 11.2% respectively. After expanding the sample，the accuracy of the evaluation results decreases slightly with the increase of the supplement ratio. When 50% of the samples are supplemented，the predicted areas of the high-risk areas of the two models are reduced by 14.0% and 19.5% respectively. Generating landslide samplesasedonthe SMOTEtrategycanprovideanefectivemethodforlandslidesusceptibilityevaluationmodelinginareas withising landslide data.

Key words：landslidesusceptibilt；incompleteladslidedata；randomforest；neuralnetwork；sytheticminorityoversampling；uppe Yellow River

0 引言

黄河流域地质运动活跃、地貌演化迅速、气候区域差异显著，导致流域重大灾害类型多样[1]、分布广且突发性强，威胁黄河流域生态环境与地质安全[2]。（剩余11425字）