A grey relation projection model for regional eco-environmental quality evaluation is established based on grey system theory and vector projection principle.
基于灰色系统理论和矢量投影原理,建立了区域生态环境评价的灰色关联投影模型。
On the basis of the fuzzy set theory and the concept of Euclid approach degree, a fuzzy matter-element model for assessment of regional eco-environmental quality is established.
基于生态环境质量概念的模糊性和评价指标的不相容性,在模糊物元分析的基础上,结合模糊集理论和欧氏贴近度概念,建立了区域生态环境评价的模糊物元模型。
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