摘要
分析了加权马氏距离判别分析中的权值问题,提出了用熵理论来确定加权马氏距离中权值的方法。实证分析显示基于熵理论的加权马氏距离要优于基于主成分的加权马氏距离。
Weighted problem in the weighted Mahalanobis Distance is discussed here. In the new approach, the weight can be accurately determined with the entropy theory. Simulation results illustrate that the weighted Mahalanobis Distance based on entropy theory superior to the weighted Mahalanobis Distance based on the Principal Component Analysis.
出处
《阜阳师范学院学报(自然科学版)》
2011年第3期21-24,共4页
Journal of Fuyang Normal University(Natural Science)
关键词
马氏距离
加权马氏距离
熵理论
主成分分析
Mahalanobis distance
weighted Mahalanobis distance
entropy theory
Principal Component Analysis