摘要
提出了一种对灰色斜率关联度的改进模型,并分析了它的性质,改进后的关联度模型能够反映序列的正、负相关关系,具有对称性、唯一性、可比性和无量纲化后的保序性.改进的灰色斜率关联度能够更充分地利用数据所包含的信息,所得关联分析结果较为客观可靠,最后以实例验证了评价方法的有效性与实用性.
An improvement model on degree of grey slope incidence is developed and analyse its nature.The improved one can reflect the positive and negative relation of sequence.It has some characters, such as symmetry, uniqueness,comparability and non-dimensionalized order preservation. It is found that this method makes better use of the information of datas,and the result of grey incidence analysis by this method is more scientific than before. At the end of this paper, some examples are utilized to prove the effectiveness and practicality of this method.
出处
《数学的实践与认识》
CSCD
北大核心
2012年第22期151-155,共5页
Mathematics in Practice and Theory
关键词
灰色系统
关联度
斜率
gegree of grey incidence
slopge
gree system
