Citation: | YAN Tianxiao, ZHANG Jiantong, ZHU Yueqin, LIU Haoran, ZHU Haomeng. 2024. Application of incremental learning in landslide susceptibility assessment: A case study of Tianshui, Gansu Province. Geological Bulletin of China, 43(4): 630-640. doi: 10.12097/gbc.2023.07.020 |
To enhance the generalization ability of machine learning models in the assessment of landslide susceptibility, this paper takes the city of Tianshui as an example and employs an incremental learning model based on LightGBM. By utilizing the Autogluon automated machine learning framework, the model's hyperparameter optimization and mdoel stacking are implemented. Additionally, the SHAP explainable framework is used for feature selection and data anomaly analysis. By using the above methods we construct an incremental learning model suitable for landslide susceptibility assessment. Model validation using landslide disaster data collected from various regions in Tianshui city demonstrates that the incremental learning model for landslide susceptibility can effectively identify and predict landslide-prone areas. It adapts to new datasets by self-adjusting the model and improves model performance.
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Sample optimization process
AutoGluon model(a)and K-fold cross-validation(b)
SHAP interpretable model analysis process
Landslide distribution map of Tianshui City
Slope unit division based on multi-scale image segmentation
Landslide impact factor diagrams
SHAP feature clustering plot (a) and SHAP feature ranking plot (b)
Performance comparison of autogluon and other models
Decision Graph analysis of LightGBM model
Incremental learning process based on LightGBM
Predictive effect after incremental learning
Landslide susceptibility assessment map of Tianshui City