Research for Multidimensional Systems Diagnostic Analysis based on Improved Mahalanobis Distance
The relative importance of variables is different when comprehensively evaluating samples from multidimensional systems;however,traditional Mahalanobis-Taguchi System (MTS) method ignores this difference and treats all variables equally. to improve the accuracy of diagnosis or prediction when using MTS to measure the degree of abnormality of multidimensional observations,this paper makes an improvement on Mahalanobis distance function. Firstly,the necessity and feasibility of weighted Mahalanobis distance are analyzed. Secondly,the weighted Mahalanobis distance function in MTS is proposed. Finally,based on the new method a blood viscosity diagnosis system is optimized and analyzed and the result proves the effectiveness of this method.
Multidimensional system Mahalanobis-Taguchi System Mahalanobis distance weighted Mahalanobis distance diagnosis
HAN Ya-juan HE Zhen SONG Guo-fang
School of Management,Shanghai University,Shanghai 200444,China School of Management,Tianjin University,Tianjin 300072,China
国际会议
北京
英文
213-217
2009-10-21(万方平台首次上网日期,不代表论文的发表时间)