Aihua Wei

Dr. Aihua Wei


Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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23 May 2022 in Sustainability
Verified
Journal Article
Open access
PDF file
AWAihua Wei
Aihua Wei
KYKaining Yu
Kaining Yu
FDFenggang Dai
Fenggang Dai
FGFuji Gu
Fuji Gu
WZWanxi Zhang
Wanxi Zhang
YLYu Liu
Yu Liu
Ensemble machine learning methods have been widely used for modeling landslide susceptibility, but there has been no uniform ensemble method for this problem. The main objective of this study is to compare popular ensemble machine learning-based models and apply them to landslides susceptibility mapping. The selected models include the random forest (RF), which is a typical bagging ensemble model, and three advanced boosting models, namely, adaptive boosting (AB), gradient boosting decision trees (GBDT), and extreme gradient boosting (XGBoost). This study considers 94 landslide points and 12 affecting factors. The data are divided into a training dataset consisting of 70% of the overall data, and a validation dataset, containing the remaining 30% of the data. The models are evaluated using the area under the receiver operating characteristic curve (AUC) and three common performance metrics: sensitivity, specificity, and accuracy. The results indicate that the four ensemble models have an AUC of more than 0.8, suggesting that they can appropriately and accurately predict landslide susceptibility maps. In particular, the XGBoost model achieves the best performance among all models, having a sensitivity of 92.86, specificity of 90.00, and accuracy of 91.38. Furthermore, the bagging model has a sensitivity of 89.29, specificity of 86.67, and accuracy of 87.93, and it is superior to the GBDT, which achieves a sensitivity of 86.21, specificity of 86.21, and accuracy of 86.21, and the AB, reaching a sensitivity of 82.14, specificity of 80.00, and accuracy of 81.03. The results presented in this study indicate that the advanced ensemble model, the XGBoost model, could be a promising tool for the selection of ensemble models for predicting landslide susceptibility mapping.

5 August 2022 in Earth Science Informatics
Verified
Journal Article
Closed access
PDF file
AWAihua Wei
Aihua Wei
YCYuanyao Chen
Yuanyao Chen
DLDuo Li
Duo Li
XZXianfu Zhang
Xianfu Zhang
TWTao Wu
Tao Wu
HLHui Li
Hui Li

23 December 2014 in Journal of Earth Science
Verified
Journal Article
Closed access
PDF file
FMFengshan Ma
Fengshan Ma
AWAihua Wei
Aihua Wei
DQDeng Qinghai
Deng Qinghai
HZHaijun Zhao
Haijun Zhao



27 December 2011 in Acta Geologica Sinica - English Edition
Verified
Journal Article
Closed access
PDF file
MFMa Fengshan
Ma Fengshan
AWAihua Wei
Aihua Wei
ZHZhantao Han
Zhantao Han
ZHZhao Haijun
Zhao Haijun
GJGuo Jie
Guo Jie