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http://dx.doi.org/10.14400/JDC.2017.15.11.245

The big data method for flash flood warning  

Park, Dain (Dept. of Statistics, Daegu University)
Yoon, Sanghoo (Dept. of Computer Science and Statistics, Daegu University)
Publication Information
Journal of Digital Convergence / v.15, no.11, 2017 , pp. 245-250 More about this Journal
Abstract
Flash floods is defined as the flooding of intense rainfall over a relatively small area that flows through river and valley rapidly in short time with no advance warning. So that it can cause damage property and casuality. This study is to establish the flash-flood warning system using 38 accident data, reported from the National Disaster Information Center and Land Surface Model(TOPLATS) between 2009 and 2012. Three variables were used in the Land Surface Model: precipitation, soil moisture, and surface runoff. The three variables of 6 hours preceding flash flood were reduced to 3 factors through factor analysis. Decision tree, random forest, Naive Bayes, Support Vector Machine, and logistic regression model are considered as big data methods. The prediction performance was evaluated by comparison of Accuracy, Kappa, TP Rate, FP Rate and F-Measure. The best method was suggested based on reproducibility evaluation at the each points of flash flood occurrence and predicted count versus actual count using 4 years data.
Keywords
Flash flood; Land Surface model; Logistic regression model; Nature hazard warning; Machine learning;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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