Abstract
Landslide hazard mapping is a fundamental tool for disaster management activities in Loess terrains. Aiming at major issues with these landslide hazard assessment methods based on Naïve Bayesian classification technique, which is difficult in quantifying those uncertain triggering factors, the main purpose of this work is to evaluate the predictive power of landslide spatial models based on uncertain Naïve Bayesian classification method in Baota district of Yan’an city in Shaanxi province, China. Firstly, thematic maps representing various factors that are related to landslide activity were generated. Secondly, by using field data and GIS techniques, a landslide hazard map was performed. To improve the accuracy of the resulting landslide hazard map, the strategies were designed, which quantified the uncertain triggering factor to design landslide spatial models based on uncertain Naïve Bayesian classification method named NBU algorithm. The accuracies of the area under relative operating characteristics curves (AUC) in NBU and Naïve Bayesian algorithm are 87.29% and 82.47% respectively. Thus, NBU algorithm can be used efficiently for landslide hazard analysis and might be widely used for the prediction of various spatial events based on uncertain classification technique.
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Foundation item: Projects(41362015, 51164012) supported by the National Natural Science Foundation of China; Project(2012AA061901) supported by the National High-tech Research and Development Program of China
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Mao, Ym., Zhang, Ms., Wang, Gl. et al. Landslide hazards mapping using uncertain Naïve Bayesian classification method. J. Cent. South Univ. 22, 3512–3520 (2015). https://doi.org/10.1007/s11771-015-2891-1
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DOI: https://doi.org/10.1007/s11771-015-2891-1