Qualitative indices in multi-objective decision can usually be evaluated and measured by mathematical methods or models, but the obtained results are sometimes inaccurate because of fuzziness of indices. To improve the accuracy and reliability of the evaluation results, set-value statistic principle is applied, and accordingly four evaluation methods are obtained. Meanwhile, these methods are compared briefly.
Zhang Mingshan , Tang Xiaowo & He Dequan( School of Economics and Management, Southwest University for Nationalities, Chengdu 610041, P.R.China
