系统相似性度量中的非平权距离系数法  

The method of uneven weight distance coefficient in the measurement of system similarity

作　　者：章四兵[1] 周美立[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2004年第8期903-906,共4页Journal of Hefei University of Technology：Natural Science

基　　金：安徽省自然科学基金资助项目(01044108)

摘　　要：文章基于系统相似性,指出传统距离系数法在相似度量中的局限性,提出非平权距离系数法,通过对现有的权重值确定方法进行分析与比较,提出了一种更易精确计算的权重值确定方法,建立相似度量的计算公式,通过相似分析实例详述该方法的计算步骤,比较客观地反映出系统间的相似程度,从而提高系统相似性度量的准确性和可靠性,同时也提高了相似性度量在工程应用中的实用性。The limitation of the traditional distance coefficient method for the measurement of system similarity is analyzed,and the method of uneven weight distance coefficient is put forward. The current methods for the calculation of weight coefficients are investigated,and a new method for calculating the weight more easily and accurately is presented,and the formula of similarity measurement is also established.The measurement process is elaborated by citing an instance. The method reflects the similarity degree between systems objectively;consequently,the accuracy,reliability and practicability of the similarity degree measurement are enhanced.

关 键 词：系统相似性 相似度量 距离系数 权重值 特征属性 

分 类 号：TH113[机械工程—机械设计及理论] TP391.9[自动化与计算机技术—计算机应用技术]