New entropy-based method for variables selection and its application to the debris-flow hazard assessment

Chien chih Chen, Chih Yuan Tseng, Jia Jyun Dong

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

We propose a new data analyzing scheme, the method of minimum entropy analysis (MEA). New MEA method provides a quantitative criterion for selecting relevant variables to model the studied physical system. This method can be easily extended to the analyses of various geophysical/geological data, where many relevant or irrelevant available measurements may obscure the understanding of the highly complicated physical system like the occurrence 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 identify three relevant variables, i.e. the hydrological form factor, landslide area, and number of landslides, to the occurrence of observed debris-flow events by the 1996 Typhoon Herb.

Original languageEnglish
Pages (from-to)19-26
Number of pages8
JournalEngineering Geology
Volume94
Issue number1-2
DOIs
StatePublished - 16 Oct 2007

Keywords

  • Data analysis
  • Debris flow
  • Minimum entropy analysis

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