摘要
计算灰关联度的均值方法湮没了关联因数的个性化信息,并且可能产生对整体接近性序关系的误判.提出了一种计算灰关联度的新方法,该方法引入了理想列和负理想列、近距和远距等概念,并研究了近距和远距的关系,以及它们与序列关联性的关系,给出了相关命题.基于范数概念,给出了范数灰关联度及其性质.计算结果表明:与现有灰关联度比较,范数关联度具有更好的整体接近性,且能够体现关联系数的个性化特征.
The mean method for computing gray relational grade(GRG) may obliterate information of the specific characteristics of gray coefficients and possibly make a mistake in judgement of the order relationship with whole approximation. The concepts of a perfect sequence, an opposite sequence, a near distance and a far distance are introduced. The relationship among the near distance and the far distance, and the correlative properties of a sequence is studied, and the relative propositions are presented. Norm gray relational grade (NGRG) is put forward based on the conception of norm, and its properties are discussed. Compared with the original GRG, the NGRG has a integrated approximation and can express the specific characteristics of gray relational coefficients.
出处
《大庆石油学院学报》
CAS
北大核心
1999年第4期61-63,共3页
Journal of Daqing Petroleum Institute
基金
黑龙江省自然科学基金!资助项目 ( 199819992 0 90 2 3 0 )
