基于证据推理与粗集理论的主客观综合评价方法

A Method of Comprehensive Evaluation with Subjective and Objective Information Based on Evidential Reasoning and Rough Set Theory

提出一种面向多层次、多属性、主客观知识源并存的评价问题的综合评价方法。该方法试图利用证据推理处理主观判断信息 ,而利用粗集理论处理客观历史信息 ,从过去的客观数据中获取评价知识 ,通过合成算法综合两方面的评判结果 ,以得到更符合实际的评价结论。介绍了该方法的模型与算法 。

A comprehensive evaluation method is set forth based on evidential reasoning and rough set theory, which is used to deal with multi-level, multi-attribute evaluation problem. This method can utilize subjective information and objective information effectively. Evidential reasoning is used to deal with the information of subjective judgement. At the same time rough set theory is used to obtain objective evaluation knowledge from used data. So the results which conform with engineering practice would be gotten by means of combining them during evaluation. The model and algorithm are introduced. At last, it proves the method is rational and reasonable through the example of evaluating design selection of a gearbox.