一种加权绝对灰色关联度及其在密云水库水质评价中的应用

在系统分析了目前各种绝对灰色关联度计算方法的基础上,提出了一种简单的加权绝对灰色关联度计算方法.该方法不涉及高深的数学知识,思想方法易于理解和掌握,计算只涉及简单的算术运算.采用算例将该方法与神经网络、模糊综合评价、 LOG等方法进行了对比检验,结果表明该方法可行有效.用该方法对密云水库水质进行了综合评价,给出密云水库水质基本上为二级的结论,为密云水库水质的进一步综合管理和规划提供了理论依据.

A Weight Absolute Grey Correlation Degree and It's Application in Evaluation of Water Quality Miyun Reservoir

First, a weight absolute grey correlation degree has been presented in this paper,based on the analysis of different computation method of absolute grey correlation degree which are widely used at present .The weight absolute grey correlation degree is simple method, and more advanced mathematical knowledge is not involved in. Meanwhile applied the method in the classical example and compared the results with the methods of ANN, Fuzzy integrative evaluation and grey clustering. The fact shows that the method put forward is convenient and feasible and useful. It was applied in evaluation water quality level of Miyun reservoir. Water quality of Miyun reservoir is in the second level has been concluded, which provides the base for management of Miyun reservoir.