Flood Detection and Susceptibility Mapping Using Sentinel-1 Remote Sensing Data and a Machine Learning Approach: Hybrid Intelligence of Bagging Ensemble Based on K-Nearest Neighbor Classifier

Clicks: 238
ID: 261159
2020
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Abstract
Mapping flood-prone areas is a key activity in flood disaster management. In this paper, we propose a new flood susceptibility mapping technique. We employ new ensemble models based on bagging as a meta-classifier and K-Nearest Neighbor (KNN) coarse, cosine, cubic, and weighted base classifiers to spatially forecast flooding in the Haraz watershed in northern Iran. We identified flood-prone areas using data from Sentinel-1 sensor. We then selected 10 conditioning factors to spatially predict floods and assess their predictive power using the Relief Attribute Evaluation (RFAE) method. Model validation was performed using two statistical error indices and the area under the curve (AUC). Our results show that the Bagging–Cubic–KNN ensemble model outperformed other ensemble models. It decreased the overfitting and variance problems in the training dataset and enhanced the prediction accuracy of the Cubic–KNN model (AUC=0.660). We therefore recommend that the Bagging–Cubic–KNN model be more widely applied for the sustainable management of flood-prone areas.
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shahabi2020remoteflood Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Himan Shahabi;Ataollah Shirzadi;Kayvan Ghaderi;Ebrahim Omidvar;Nadhir Al-Ansari;John J. Clague;Marten Geertsema;Khabat Khosravi;Ata Amini;Sepideh Bahrami;Omid Rahmati;Kyoumars Habibi;Ayub Mohammadi;Hoang Nguyen;Assefa M. Melesse;Baharin Bin Ahmad;Anuar Ahmad;Shahabi, Himan;Shirzadi, Ataollah;Ghaderi, Kayvan;Omidvar, Ebrahim;Al-Ansari, Nadhir;Clague, John J.;Geertsema, Marten;Khosravi, Khabat;Amini, Ata;Bahrami, Sepideh;Rahmati, Omid;Habibi, Kyoumars;Mohammadi, Ayub;Nguyen, Hoang;Melesse, Assefa M.;Ahmad, Baharin Bin;Ahmad, Anuar;
Journal remote sensing
Year 2020
DOI
10.3390/rs12020266
URL
https://dx.doi.org/10.3390/rs12020266
Keywords
Machine learning Iran goodness-of-fit flood overfitting remote sensing data haraz

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