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基于特征差异的仿真模型验证及选择方法

DOI: 10.3724/SP.J.1004.2014.02134, PP. 2134-2144

Keywords: 模型验证,模型选择,特征差异,主成分分析,聚类分析,判别分析

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Abstract:

?为了实现在系统存在多个数据类型各异的输出时,多个备选仿真模型的验证和择优,提出了基于特征差异的仿真模型验证及选择方法.首先,将系统输出分为静态、缓变和速变三类数据,并分别给出了每类数据的特征差异度量模型;然后,采用主成分分析法从多个具有相关性的特征差异中提取出少数几个独立的主成分变量;再者依据主成分数据,采用K-均值聚类分析方法将多个备选仿真模型的输出划分为K类;最后,基于Fisher判别分析法判定参考输出是否属于其中的某类,进而实现对多个备选仿真模型的验证和选择.通过实例应用,表明了该方法的有效性.

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