Efficient assessment of Electric Power company in Inner Mongolia by rule ensemble

Evaluation of power enterprise has becoming a focus of electricity industry since market reformation. Operation datum of nine subsidiaries of Inner Mongolia Power Group Co., Ltd was collected. Indexes weights were obtained by AHP. Considering experts' preferences, it is more reasonable to view weights as random variables. Assessment values of sample were calculated by simulation. Rule ensembles algorithm was applied to fit assessment function. The order of 9 constituent companies showed that the smallest Wuhai Electric Power-Supply Bureau had the most efficiency. Its operation experiences deserve extension.