期刊
GEOCARTO INTERNATIONAL
卷 37, 期 26, 页码 11088-11115出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10106049.2022.2046866
关键词
Flood susceptibility; deep learning; machine learning; GIS; flood management; Egypt
Geohazard risk is high in Arab countries due to ineffective disaster preparedness measures, mismanagement, lack of public awareness, inadequate funding and lack of stakeholder support. In this study, flood susceptibility modelling was conducted in Egypt using machine learning technique (Support Vector Machine) and deep learning method (Convolutional Neural Networks). The results showed that deep learning technique (CNN) provided better prediction accuracy than machine learning technique (SVM).
Geohazard risk is high in Arab countries due to ineffective disaster preparedness measures, mismanagement, lack of public awareness, inadequate funding and lack of stakeholder support. One such country is Egypt, which is hit by floods every year that cost lives and bring the economy to a standstill. Moreover, not much has been done to map flood-prone areas. In this paper, flood susceptibility modelling was evaluated in the Ras Gharib region of Egypt using two effective techniques machine learning technique-MLT (Support Vector Machine (SVM)) and deep learning method-DL (Convolutional Neural Networks (CNN)). Thirteen flood related factors and flood inventory layer were prepared to construct these models. Validation was performed with 30% of the flood locations where receiver operating characteristic (ROC) curves showed that the deep learning technique (CNN) gave a prediction accuracy of 86.5% (high performance), while the MLTs (SVM) gave 71.6% (medium performance). The results show that CNN provides 17% better than SVM which indicates a powerful and accurate model in flood susceptibility mapping. Results were confirmed using the Astro Digital images shortly after the 2016 flood, in which the CNN model provides a good agreement.
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