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Application of convolutional neural network fused with machine learning modeling framework for geospatial comparative analysis of landslide susceptibility

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Abstract

Landslides in mountain settlements are among the most widespread and dangerous geohazards. In this study, we aimed to assess landslide susceptibility using Wenchuan, southwest China, as a case. For this purpose, we constructed an optimization method that combines a convolutional neural network with the machine learning algorithm of support vector machines, quadratic discriminant analysis, Bayesian optimized gradient boosting tree, and Bayesian optimized random forest. The model inputs were 13,886 historical seismic-induced landslide events interpreted from remote sensing imagery and ten evaluation features: elevation, slope angle, slope aspect, plan curvature, profile curvature, distance to roads, distance to rivers, distance to faults, land use pattern, and soil texture. The output was the probability of landslide occurrence for each prediction unit. Finally, we evaluated the assessed outcomes using both the receiver operating characteristic curve and 1074 latest recorded landslide dataset (2013–2020). The calculations showed that the overall susceptibility values to landslides in the high–very high interval produced by the hybrid convolutional neural networks was 9.95%–16.91%, which is close to the actual landslide susceptibility of the region. The receiver operating characteristic curve and statistical analysis of the latest landslide event outcomes demonstrated that the hybrid Bayesian optimized gradient boosting tree model had a higher classification accuracy than the other classifiers presented in this study. The research findings are available to local governments and disaster management authorities in guiding disaster prevention, mitigation policy formulation, and land use and provide reference value for evaluating landslide susceptibility in other mountainous areas.

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Abbreviations

AUC:

Area under the receiver operating characteristic curve

BO_GBT:

Bayesian optimized gradient boosting tree

BO_RF:

Bayesian optimized random forest

CNN:

Convolutional neural network

CSLC:

Classic supervised learning classifiers

DF:

Distance to faults

DRI:

Distance to rivers

DRO:

Distance to roads

ELE:

Elevation

LCF:

Landslide conditioning factors

LSM:

Landslide susceptibility mapping

LSV:

Landslide susceptibility value

LUP:

Land use pattern

ML:

Machine learning

PLC:

Plan curvature

PRC:

Profile curvature

QDA:

Quadratic discriminant analysis

ROC:

Receiver operating characteristic curve

SAN:

Slope angle

SLA:

Slope aspect

ST:

Soil texture

SVM:

Support vector machines

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Acknowledgements

The authors appreciate the support from Peng Du on the landslide data and Jintao Huang on the algorithm discussion and acknowledge the insightful comments of the editor and anonymous referees that were very helpful for an improvement in an earlier version of the manuscript.

Funding

This research was supported by the National Natural Science Foundation of China under Grant (No. 41871174) and the project of Science and Technology Department of Sichuan Province under Grant (No. 2020YFSY0013).

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Correspondence to Mingtao Ding.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Gao, Z., Ding, M. Application of convolutional neural network fused with machine learning modeling framework for geospatial comparative analysis of landslide susceptibility. Nat Hazards 113, 833–858 (2022). https://doi.org/10.1007/s11069-022-05326-7

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  • DOI: https://doi.org/10.1007/s11069-022-05326-7

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