A novel CGBoost deep learning algorithm for coseismic landslide susceptibility prediction  

作　　者：Qiyuan Yang Xianmin Wang Jing Yin Aiheng Du Aomei Zhang Lizhe Wang Haixiang Guo Dongdong Li 

机构地区：[1]Hubei Subsurface Multi-scale Imaging Key Laboratory,School of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China [2]State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Wuhan 430074,China [3]Key Laboratory of Geological and Evaluation of Ministry of Education,China University of Geosciences,Wuhan 430074,China [4]Laboratory of Natural Disaster Risk Prevention and Emergency Management,School of Economics and Management,China University of Geosciences,Wuhan 430074,China [5]College of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China

出　　处：《Geoscience Frontiers》2024年第2期349-365,共17页地学前缘（英文版）

基　　金：This work is funded by the National Natural Science Foundation of China(42311530065,U21A2013,71874165);Opening Fund of Key Laboratory of Geological Survey and Evaluation of Ministry of Education(Grant Nos.GLAB2020ZR02,GLAB2022ZR02);State Key Laboratory of Biogeology and Environmental Geology(Grant No.GBL12107);the Fundamental Research Funds for the Central Universities,China University of Geosciences(Wuhan)(CUG2642022006);Hunan Provincial Natural Science Foundation of China(2021JC0009).

摘　　要：The accurate prediction of landslide susceptibility shortly after a violent earthquake is quite vital to the emergency rescue in the 72-h‘‘golden window”.However,the limited quantity of interpreted landslides shortly after a massive earthquake makes landslide susceptibility prediction become a challenge.To address this gap,this work suggests an integrated method of Crossing Graph attention network and xgBoost(CGBoost).This method contains three branches,which extract the interrelations among pixels within a slope unit,the interrelations among various slope units,and the relevance between influencing factors and landslide probability,respectively,and obtain rich and discriminative features by an adaptive fusion mechanism.Thus,the difficulty of susceptibility modeling under a small number of coseismic landslides can be reduced.As a basic module of CGBoost,the proposed Crossing graph attention network(Crossgat)could characterize the spatial heterogeneity within and among slope units to reduce the false alarm in the susceptibility results.Moreover,the rainfall dynamic factors are utilized as prediction indices to improve the susceptibility performance,and the prediction index set is established by terrain,geology,human activity,environment,meteorology,and earthquake factors.CGBoost is applied to predict landslide susceptibility in the Gorkha meizoseismal area.3.43%of coseismic landslides are randomly selected,of which 70%are used for training,and the others for testing.In the testing set,the values of Overall Accuracy,Precision,Recall,F1-score,and Kappa coefficient of CGBoost attain 0.9800,0.9577,0.9999,0.9784,and 0.9598,respectively.Validated by all the coseismic landslides,CGBoost outperforms the current major landslide susceptibility assessment methods.The suggested CGBoost can be also applied to landslide susceptibility prediction in new earthquakes in the future.

关 键 词：Coseismic landslide Landslide susceptibility prediction Graph neural network Deep learning 

分 类 号：P642.22[天文地球—工程地质学]