| 主成分分析法和模糊综合分析法在水质评价中的实例比较 |
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| 引用本文： | 孙雷.主成分分析法和模糊综合分析法在水质评价中的实例比较[J].环境科学与管理,2011,36(8):178-181. |
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| 作者姓名： | 孙雷 |
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| 作者单位： | 安徽省环境科学研究院,安徽合肥,230022 |
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| 摘 要： | 在涉及众多因子的水质综合评价中,每种评价方法有其自身的优缺点。将模糊综合分析法与主成分分析法在实例中进行比较,通过比较得出主成分分析法能够客观地确定各个指标的权重,避免了随意性,也避免了计算过程中由于因子众多,数据复杂而造成的人工计算误差,使结果更加可靠。主成分分析将原来的众多的子转化为少数主成分,少数主成分综合的反映水质情况,且各主成分内不同因子之间的相关性关系也十分明确。
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| 关 键 词： | 水质综合评价 模糊分析法 主成分分析法 |
Comparison between Performance of Principal Component Analysis and Fuzzy Analysis in Water Quality Evaluation |
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| Sun Lei.Comparison between Performance of Principal Component Analysis and Fuzzy Analysis in Water Quality Evaluation[J].Environmental Science and Management,2011,36(8):178-181. |
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| Authors: | Sun Lei |
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| Institution: | Sun Lei(Anhui Academy of Environmental Sciences,Hefei 230022,China) |
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| Abstract: | In a comprehensive water quality evaluation which involves many factors, each evaluation method has its own ad-vantages and disadvantages. This paper compares principal components analysis and fuzzy analysis by examples. The results show that the former d |
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| Keywords: | comprehensive water quality evaluation principal components analysis fuzzy analysis |
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