Machine learning for high-resolution landslide susceptibility mapping: case study in Inje County, South Korea

Xuan Hien Le, Song Eu, Chanul Choi, Duc Hai Nguyen, Minho Yeon, Giha Lee

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Landslides are a major natural hazard that can significantly damage infrastructure and cause loss of life. In South Korea, the current landslide susceptibility mapping (LSM) approach is mainly based on statistical techniques (logistic regression (LR) analysis). According to previous studies, this method has achieved an accuracy of approximately 75.2%. In this paper, we expand upon this traditional approach by comparing the performance of six machine learning (ML) algorithms for LSM in Inje County, South Korea. The study employed a combination of geographical data gathered from 2005 to 2019 to train and evaluate six algorithms, including LR, Gaussian Naive Bayes (GNB), Support Vector Machine (SVM), K-Nearest Neighbors (KNN), Random Forest (RF), and Extreme Gradient Boosting (XGB). The effectiveness of these models was measured by various criteria, such as the percentage of correct classification (PCC) score, F1 score, and Kappa score. The results demonstrated that the PCC and F1 scores of the six models fell between [0.869–0.941] and [0.857–0.940], respectively. RF and XGB had the highest PCC and F1 scores of 0.939 and 0.941, respectively. This study indicates that ML can be a valuable technique for high-resolution LSM in South Korea instead of the current approach.

Original languageEnglish
Article number1268501
JournalFrontiers in Earth Science
Volume11
DOIs
StatePublished - 2023

Keywords

  • disaster management
  • extreme gradient boosting (XGB)
  • feature importance
  • landslide
  • landslide probability
  • landslide susceptibility mapping (LSM)
  • random forest (RF)
  • risk map

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