为了提高应急物资需求预测的精度,基于应急物资需求预测问题的特点,引入对称三角模糊数表示影响因素的模糊特征,建立基于多元模糊线性回归的应急物资需求预测模型,并给出多元模糊线性回归预测模型的参数估计方法,通过实证案例分析,验证预测方法的有效性.结果表明,灾害级别、受灾人口、受灾面积是影响应急物资需求预测的重要因素,针对灾害级别、受灾人口、受灾面积等因素的不确定性特征,用对称三角模糊数表征有关模糊属性,有助于提高应急物资需求预测的准确性.
In order to improve the prediction accuracy, based on the characteristics of emergency supplies demand prediction, the symmetric triangle fuzzy numbers were introduced in this paper to describe fuzzy feature of effect factors of emergency demand.The emergency supplies demand prediction method based on multiple fuzzy linear regression model was proposed, the parameter estimation method of the proposed model was presented.Finally, a numerical example shows that the method is valid.The results show that the disaster level, the affected population and the damage area are important factors influencing the emergency supplies demand prediction.To deal with the uncertainty attribute in the process of predicting emergency demands, using the symmetric triangular fuzzy number to represent the fuzzy attributes can improve the accuracy of emergency supplies demand prediction.
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