Variable selection based on entropic criterion and its application to the debris-flow triggering

Details Variable selection based on entropic criterion and its application to the debris-flow triggering Variable selection based on entropic criterion and its application to the debris-flow triggering

2006-09-29

arxiv.org/abs/physics/0609252v1

Engineering Geology 94, 19 (2007)

Physics

Data Analysis, Statistics and Probability

9 pages and 4 tables

Scientific paper

10.1016/j.enggeo.2007.06.004

We propose a new data analyzing scheme, the method of minimum entropy analysis (MEA), in this paper. New MEA provides a quantitative criterion to select relevant variables for modeling the physical system interested. Such method can be easily extended to various geophysical/geological data analysis, where many relevant or irrelevant available measurements may obscure the understanding of the highly complicated physical system like the triggering of debris-flows. After demonstrating and testing the MEA method, we apply this method to a dataset of debris-flow occurrences in Taiwan and successfully find out three relevant variables, i.e. the hydrological form factor, numbers and areas of landslides, to the triggering of observed debris-flow events due to the 1996 Typhoon Herb.

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