基于熵权的可变模糊模型在地下水质评价中的应用

Application of variable fuzzy model based on entropy weight to groundwater quality assessment

针对地下水质量评价中的模糊性和指标权重确定容易存在的人为性,将熵权理论与多目标模糊决策理论结合起来,建立基于熵权权重的多目标模糊评价模型。以前者反映指标权重的客观性,以后者反映多目标性和模糊性。将该模型应用到韩城矿区地下水水质评价中,通过与其他五种评价方法评价结果的综合对比分析,新模型的评价结果具有较高的合理性,可为其他领域的多目标评价与决策问题提供借鉴。

To deal with the fuzziness and artificiality in objective weights,we built a multi-objective variable fuzzy model for ground water assessment based on entropy-weight.The fuzzy model was used to deal with the fuzziness.The entropy was used for objective weights determination.Taking the ground water assessment of Hancheng mining area as an example,we used 5 models to evaluate the groundwater quality.The comparing results showed that the evaluated result by new model was more feasible.This model can be used in other related fields.