First of all, because it extracts data character of input spectrum by using PLS, so the dimensions of input variable of SVM modeling are decreased effectively.
由于PLS - SV M建模法先通过PLS提取输入光谱的数据特征，因此有效降低了SVM模型输入变量的维数。
The discrete variable representation(DVR) scheme is applied to investigate the photoelectron spectrum(PES) of multiphoton ionization for some diatomic molecules in strong fields.
采用离散变量表示（DVR）方案研究了双原子分子在强场下的多光子电离光电子能谱，得到了与实验相同的结果。
Wavelength selection methods are variable selection techniques that allow calibration models to be constructed with a subset of spectral points instead of with the whole spectrum.
波段选择也属于变量选择，它是用选出来的波段代替全波段建模从而改善模型的性能。
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