Abstract
This paper adopted the feature selection method for information gain calculation to screen factors for landslide hazard susceptibility evaluation in Wushan County, the reservoir area of the Three Gorges Reservoir Hub. A comparative experimental study of evaluation factor screening was conducted via the Bayesian information criterion method and information gain method. The following conclusions could be drawn: in the selection of regional landslide susceptibility evaluation factors, the information gain value could be used as a screening index. The screening method steps are as follows: the information gain value of each factor is calculated, and the corresponding evaluation factors are selected based on the order of the information gain values. The percentage of the information gain value of a single factor to the sum of the information gain values of all factors could be used as an evaluation factor screening criterion. Since the information gain value provides a clear meaning and is easy to calculate in terms of the contribution of each evaluation factor to the evaluation model accuracy, this index could play an important role in the screening process of landslide susceptibility evaluation factors.
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Acknowledgements
We thank the editors and anonymous reviewers for their valuable comments on the manuscript. We are grateful for the support provided by the Key Research and Development Program of Hubei Province: Research on Disaster Causing Mechanism and Key Risk Prevention Technologies of Major Landslides in Mountainous Areas Under Heavy Rain (No. 2021BCA219).
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Li, X., Chong, J., Lu, Y. et al. Application of information gain in the selection of factors for regional slope stability evaluation. Bull Eng Geol Environ 81, 470 (2022). https://doi.org/10.1007/s10064-022-02970-y
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DOI: https://doi.org/10.1007/s10064-022-02970-y