关于灰色关联度计算方法的研究

Study on the calculation method of grey relationship degree

灰色关联度是关联分析的基础,是灰色理论的重要组成部分。然而关联度的计算还存在一些缺陷,学者们在改进以前关联度计算方法的时候,往往又产生了一些新的问题。究其原因,主要对关联度的计算应该满足的最基本条件缺乏系统研究,才导致提出新计算方法的时候顾此失彼。详细论述了灰色关联度的实质(即关联度要达到与实际相符,应具备最基本的性质),并在此基础上提出了一种基于实质的关联度计算方法,论证了它具有良好的性质,从而弥补了以往灰色关联度不完全符合实际的缺陷。

Grey relationship degree is the basis of the relation analysis, and it is the important part of the grey theory. Nevertheless, there are some shortages with the calculation of relationship degree. While scholars improve the former calculation methods of relationship degree, there often occur some other questions. The main reason is the lack of systematic study on the essential condition of grey relationship degree, which attends to one thing and loses another. Thereby, the essential of grey relationship degree is discussed, and a kind of calculation method is put forward based on the essential, and it can make up the limitation of former grey relationship degree which accords to actual fact incompletely.