An early prediction model of regional landslide disasters in Fujian Province based on convolutional neural network

DONG Lihao; LIU Yanhui; HUANG Junbao; LIU Haining

doi:10.16030/j.cnki.issn.1000-3665.202211018

2024 Vol. 51, No. 1

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DONG Lihao, LIU Yanhui, HUANG Junbao, LIU Haining. An early prediction model of regional landslide disasters in Fujian Province based on convolutional neural network[J]. Hydrogeology & Engineering Geology, 2024, 51(1): 145-153. doi: 10.16030/j.cnki.issn.1000-3665.202211018

Citation:

DONG Lihao, LIU Yanhui, HUANG Junbao, LIU Haining. An early prediction model of regional landslide disasters in Fujian Province based on convolutional neural network[J]. Hydrogeology & Engineering Geology, 2024, 51(1): 145-153. doi: 10.16030/j.cnki.issn.1000-3665.202211018

An early prediction model of regional landslide disasters in Fujian Province based on convolutional neural network

1.
China Institute of Geo-Environment Monitoring （Guide Center of Prevention Technology for Geo-hazards，MNR）, Beijing　100081, China
2.
College of Geosciences and Engineering，North China University of Water Resources and Electric Power, Zhengzhou, Henan　450045, China
3.
Fujian Geological Environment Monitoring Center, Fuzhou, Fujian　350002, China

More Information

Corresponding author: LIU Yanhui, 392990563@qq.com

Received Date: 07 November 2022

Revised Date: 06 March 2023

Accepted Date: 13 March 2023

Publish Date: 15 January 2024

Abstract

Abstract

Landslide disasters occur frequently in Fujian Province, and early warning of landslide disasters on a regional scale is an important means of effective disaster prevention and mitigation. Due to the complex mechanism of landslide disasters, the traditional regional landslide early warning methods have such problems as insufficient accuracy. Deep learning mainly refers to the technology of feature extraction, abstraction, representation and learning by constructing the neural network model, which is a kind of machine learning. As a classical deep learning algorithm, convolutional neural network has more powerful classification and representation ability than traditional machine learning. Taking Fujian Province as the research area, this paper introduces the convolution neural network into the field of landslide disaster early warning and constructs a regional landslide early warning model of Fujian Province. The process is as follows: (1) The SMOTE optimization algorithm is used to optimize the sample database of landslide disasters in Fujian Province from 2010 to 2018, enlarging the number of positive samples and expanding the proportion of positive and negative samples from 1∶3.4 to 1∶2, and the total number of samples reaches 18040. (2) Construct a convolution neural network model structure, which includes an input layer, two convolution layers, two maximum pooling layers, a full connection layer and an output layer. (3) Use the convolution neural network to train the optimized samples (80% of the samples from 2010 to 2018 as the training set), and use the Bayesian optimization algorithm to optimize the model parameters to obtain the regional landslide early warning model of Fujian Province. (4) The model is tested with 20% of the samples from 2010 to 2018 as the test set, and the confusion matrix and ROC curve are used to test the model. The results show that the accuracy of the model ranges from 0.96 to 0.97, the AUC value is 0.977, indicating that the model accuracy and generalization ability are good. (5) The actual situation of the landslide disaster in the flood season of 2019 is taken as a positive sample, negative samples are collected through the method of time-space sampling, and the 2019 regional landslide sample verification set (603 samples) is constructed. The model is further verified by using the confusion matrix and ROC curve. The results show that the accuracy of the model ranges from 0.75 to 0.85, and the AUC value is 0.852. Although only the actual landslide samples in the flood season of 2019 is used for verification, good results is also achieved. In this paper, the convolution neural network algorithm is applied to the regional landslide early warning, which provides a new way to establish the regional landslide early warning model. The preliminary verification shows that the model is effective and will be further applied and verified in Fujian Province in the future.
- landslide disaster /
- early warning model /
- deep learning /
- convolutional neural network /
- model building

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References

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