摘要
在DHGF算法中,不同白化权函数的选择会产生不同的评估结果.专家在确定函数类型上具有主观性,针对结果会受到主观影响的问题,基于中心点三角白化权函数,构造动态梯形白化权函数,增强结果客观性,推广了经典DHGF算法.该方法给出的评估值是区间形式,有利于决策者清楚目标所在风险等级的概率,提高评价准确性.最后结合实例表明该方法的合理性和有效性.
The selection of different whiten weight functions produces different evaluation results in the DHGF algorithm.Experts have subjectivity in determining the function type.For the problem that the result will be subjectively affected,the dynamic trapezoid whiten weight function is constructed in this paper based on the center point triangular whiten weight function,which is used to enhance the objectivity of the result,and promote the classical DHGF algorithm.The evaluation value given by this method is in the form of intervals,which is beneficial for the decision makers to know the probability of the risk level at which the target is located and improve the accuracy of evaluation.Finally,an instance is given to verify the effectiveness and rationality of the method.
作者
刘启函
叶国菊
刘尉
赵大方
LIU Qihan;YE Guoju;LIU Wei;ZHAO Dafang(College of Science,Hohai University,Nanjing Jiangsu 210098,China;School of Mathematics and Statistics,Hubei Normal University,Huangshi Hubei 435002,China)
出处
《新疆大学学报（自然科学版）（中英文）》
CAS
2023年第1期23-29,共7页
Journal of Xinjiang University(Natural Science Edition in Chinese and English)
基金
湖北省教育厅重点项目“时标上空间离散型分数阶偏动力方程的定性研究”(D20192501)
国家冰川冻土沙漠科学数据中心项目“基于区间数学理论的渭河河流健康评价”(2021kf03).
关键词
三角白化权函数
动态梯形白化权函数
DHGF算法
triangle whiten weight function
dynamic trapezoid whiten weight function
DHGF algorithm
