基于灰色关联分析的系统仿真因素权重确定

在系统仿真综合评估中,因素权重的确定至关重要.首先分析了在系统仿真综合评估中因素权重确定的常用方法,归纳了采用的步骤.针对常用方法存在的主观因素影响较大和工程应用中不易组织实施两方面不足,从灰色系统角度对仿真系统进行分析,进而介绍了灰色关联分析法及基于该法进行关联度的计算和权重确定的步骤,最后在某仿真系统中进行应用并对比分析采用常用方法得到的结论.结果表明,使用此法方便、简捷,可靠性高,在系统综合评估中权重的确定上具有较高的应用价值.

Weight Determination of Assessment Indices in System Simulation Based on Gray Correlation Analysis

The weight determination of assessment indices is very important in system simulation evaluation.In this paper,the usual methods of weight determination of assessment indices are analyzed firstly and the general steps are summarized.Then to overcome the two deficiencies of the usual methods,which are influenced strongly by subjective factors and is very hard to put in practice in project,the simulation systems are analyzed based on the gray system theory.Furthermore,gray correlation analysis is introduced,and the steps for computing gray correlation degree and weight determination are presented based on it.At last,the method is used in an example of simulation and compared with usual one.The result has showed that it is absolutely convenient,simple and reliable.It has an important application value in weight determination of simulation evaluation.