Entropy method for determination of weight of evaluating indicators in fuzzy synthetic evaluation for water quality assessment
Entropy method for determination of weight of evaluating indicators in fuzzy synthetic evaluation for water quality assessment
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DOI：
10.1016/s1001-0742(06)60032-6
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发表时间：
2006-01-01
影响因子：
6.9
通讯作者：
Sun Jing-nan
中科院分区：
文献类型：
--
作者：
Zou Zhi-hong;Yun Yi;Sun Jing-nan
针对模糊综合评价方法难以计算多个因素，且忽视评价对象之间的相互关系的问题，提出了一种新的基于熵值法的权重评价方法。将改进后的评价指标权重确定方法应用于三峡库区水质评价。结果表明，当评价对象多于一个时，该方法有利于模糊综合评价。每一个监测点，一次计算就足够了。与原评价方法相比，该方法大大简化了模糊综合评价过程，评价结果更加合理。
Considering the difficulty of fuzzy synthetic evaluation method in calculation of the multiple factors and ignorance of the relationship among evaluating objects, a new weight evaluation process using entropy method was introduced. This improved method for determination of weight of the evaluating indicators was applied in water quality assessment of the Three Gorges reservoir area. The results showed that this method was favorable for fuzzy synthetic evaluation when there were more than one evaluating objects. One calculation was enough for calculating every monitoring point. Compared with the original evaluation method, the method predigested the fuzzy synthetic evaluation process greatly and the evaluation results are more reasonable.