Abstract:

Based on the variable fuzzy set theory, the reservoir region immigration′s production and living standard was evaluated. First, the index system was constructed and the membership degrees were calculated, which was involved in immigration′s production and living standard, and then the variable fuzzy recognition model was established. Second, several different models were constructed to evaluate  the reservoir region immigrations′s production and living standard by varing the model parameters and weights of all indicators. Finally, the grade characteristic values of every model were calculated, and their stability was checked. This evaluation could properly determine the assessment level of the sample, which depended on the average values of the grade characteristics of the proposed models. This method was used to evaluate the reservoir region immigration′s production and living standard of Liangshan County in Dongping Lake reservoir. The example evaluation results proved the feasibility and reliability of this method.

Key words:  variable fuzzy recognition, relative membership degree, grade characteristic value, reservoir region immigration, production and living standard