Title :
Assessment model of set pair analysis for flood loss based on triangular fuzzy intervals under α-cut
Author :
Pan Zheng-wei ; Wu Kai-ya ; Jin Ju-liang ; Liu Xiao-Wei
Author_Institution :
Coll. of Natural Resources & Environ. Eng., Hefei Univ. of Technol., Hefei, China
Abstract :
The flood disaster is one of the most serious natural disasters. It is the important basis of making plan for flood control to assess flood losses accurately. The results of the common assessment methods are discrete values and low resolution which are applied widely at present. The research to more precise, more intuitive method of loss evaluation for flood disaster is the focus. The set pair analysis assessment model was established by the alpha-cut set of triangle fuzzy number A tilde in this paper. The case study shows this method not only presents the concrete rank of flood lose, but also finds that the evaluating rank is a confidence interval; in addition, we can obtain priorities of different areas by the expectation and square difference method for priorities of interval numbers.
Keywords :
disasters; floods; fuzzy set theory; number theory; statistical analysis; alpha-cut set; confidence interval; discrete value; expectation-and-square difference method; flood control plan; flood disaster; flood loss assessment; intuitive method; natural disaster; rank evaluation; set pair analysis assessment model; triangular fuzzy interval number priority; Decision support systems; Floods; Fuzzy sets; α-cut set; expectation and square difference method for priorities; flood lose; interval numbers; set pair analysis; triangle fuzzy number;
Conference_Titel :
Control and Decision Conference, 2009. CCDC '09. Chinese
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-2722-2
Electronic_ISBN :
978-1-4244-2723-9
DOI :
10.1109/CCDC.2009.5192608