|
Title
|
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
|
|
Type
|
JournalPaper
|
|
Keywords
|
flood; machine learning; remote sensing data; goodness-of-fit; overfitting; Haraz; Iran
|
|
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.
|
|
Researchers
|
Anuar Ahmad (Not In First Six Researchers), Baharin Ben Ahmad (Not In First Six Researchers), Assefa M.Melesse (Not In First Six Researchers), Hoang Nguyen (Not In First Six Researchers), Ayub Mohammadi (Not In First Six Researchers), kyoumars Habibi (Not In First Six Researchers), Omid Rahmati (Not In First Six Researchers), Sepideh Bahrami (Not In First Six Researchers), Ata Amini (Not In First Six Researchers), khabat khosravi (Not In First Six Researchers), Marten Geertsema (Not In First Six Researchers), John J. Clague (Not In First Six Researchers), Nadhir Al-Ansari (Fifth Researcher), Ebrahim Omidvar (Fourth Researcher), Kayvan Ghaderi (Third Researcher), Ataollah Shirzadi (Second Researcher), Himan Shahabi (First Researcher)
|