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http://dx.doi.org/10.9720/kseg.2020.4.649

The Study for Utilizing Data of Cut-Slope Management System by Using Logistic Regression  

Woo, Yonghoon (Korea Institute of Civil Engineering and Building Technology)
Kim, Seung-Hyun (Korea Institute of Civil Engineering and Building Technology)
Yang, Inchul (Korea Institute of Civil Engineering and Building Technology)
Lee, Se-Hyeok (Korea Institute of Civil Engineering and Building Technology)
Publication Information
The Journal of Engineering Geology / v.30, no.4, 2020 , pp. 649-661 More about this Journal
Abstract
Cut-slope management system (CSMS) has been investigated all slopes on the road of the whole country to evaluate risk rating of each slope. Based on this evaluation, the decision-making for maintenance can be conducted, and this procedure will be helpful to establish a consistent and efficient policy of safe road. CSMS has updated the database of all slopes annually, and this database is constructed based on a basic and detailed investigation. In the database, there are two type of data: first one is an objective data such as slopes' location, height, width, length, and information about underground and bedrock, etc; second one is subjective data, which is decided by experts based on those objective data, e.g., degree of emergency and risk, maintenance solution, etc. The purpose of this study is identifying an data application plan to utilize those CSMS data. For this purpose, logistic regression, which is a basic machine-learning method to construct a prediction model, is performed to predict a judging-type variable (i.e., subjective data) based on objective data. The constructed logistic model shows the accurate prediction, and this model can be used to judge a priority of slopes for detailed investigation. Also, it is anticipated that the prediction model can filter unusual data by comparing with a prediction value.
Keywords
cut-slope management system; machine-learning; logistic regression; prediction model;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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