Learning a Deep Attention Dilated Residual Convolutional Neural Network for Landslide Susceptibility Mapping in Hanzhong City, Shaanxi Province, China

被引:9
|
作者
Ma, Yu [1 ]
Xu, Shenghua [2 ]
Jiang, Tao [3 ]
Wang, Zhuolu [1 ]
Wang, Yong [2 ]
Liu, Mengmeng [1 ]
Li, Xiaoyan [1 ]
Ma, Xinrui [1 ]
机构
[1] Liaoning Tech Univ, Sch Geomatics, Fuxin 123000, Peoples R China
[2] Chinese Acad Surveying & Mapping, Beijing 100830, Peoples R China
[3] Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430072, Peoples R China
关键词
landslide susceptibility; dilated convolution; residual learning; attention mechanism; convolutional neural network;
D O I
10.3390/rs15133296
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The analysis and evaluation of landslide susceptibility are of great significance in preventing and managing geological hazards. Aiming at the problems of insufficient information caused by the limited number of landslide datasets, complex information of landslide evaluation factors, and low prediction accuracy of landslide susceptibility, a landslide susceptibility evaluation method based on the deep attention dilated residual convolutional neural network (DADRCNN) is proposed. First, the dilated convolution unit (DCU) is used to increase the network receptive field, aggregate multi-scale information, and enhance the model ability to capture the characteristics of landslide evaluation factors. Second, the deep residual module (DRM) is used to solve the issue of gradient disappearance and better extract data features by overlaying the residual function mapping layer and increasing the network depth. Finally, the channel attention residual module (CARM) is introduced to learn the varying importance of different landslide evaluation factors, and assign different weights to improve the susceptibility prediction accuracy. The experimental results show that the DADRCNN method can extract features around the sample points, expand the receptive field, and deeply mine the information. It mitigates the lack of sample information in training, focuses on important feature information, and significantly improves the prediction accuracy.
引用
收藏
页数:19
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