摘要
为克服在一般水质综合评价过程中确定评价指标权重系数带有专家打分法的主观偏向性,利用Shannon熵理论客观地确定出水质评价指标的熵权系数,并结合程乾生提出的属性识别理论建立了基于熵权的地下水源地水质属性识别模型。首先,建立属性空间矩阵并确定权重,然后计算属性测度,最后利用置信度准则和评分准则对模型做出评价并给出了应用实例。该模型和作者应用SPA模型的评价结果具有很好的一致性。
In order to overcome subjective and erroneous tendency problem of experts determination method in comprehensive water quality evaluation, this paper sets the attribute recognition model of water quality for groundwater sources based on entropy weight by Chen Qiansheng＇s attribute recognition theory. The entropic coefficient of water quality assessment indicators is determined by using Shannon entropy theory. In the model, firstly, the author establishes the attribute space matrix and determines the weight based on Shannon entropy theory; secondly, calculates attribute measure; thirdly, evaluates that with confidence criterion and score criterion; finally, an application example is given. The results of this model and the SPA model have good consistency.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
2008年第3期56-58,共3页
Coal Geology & Exploration
关键词
水质评价
权重
属性识别模型
water quality evaluation
weight
attribvte recognition model
