Chapter two is about the DEMATEL model and methods of distinguishing and analyzing elements and the application of DEMATEL method used in cause of formation analysis of crime.

第二章论述了因素识别与分析的DEMATEL模型和方法，探讨了DEMATEL方法在犯罪成因分析中的应用。

The traditional DEMATEL method was expanded to the fuzzy linguistic environment. Firstly the fuzzy linguistic variables were transformed into trapezoidal fuzzy numbers and quantized.

该方法将传统的DEMATEL方法拓展到模糊语言环境中，首先将语言变量转化为梯形模糊数，进行量化处理；