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。
Phase-matched filter is applied to extract phase of fundamental surface wave, and then time-variable filter is used to correct amplitude spectrum in order to isolate fundamental mode signs.
使用相匹配滤波技术提取基阶面波振型的相位，然后再利用时变滤波进行振幅谱校正，以此分离出基阶振型面波信号。
This paper proves that all the forms of wind wave frequency spectrum can be converted into the forms of variable dimension fractals.
文中还证明，各种形式的风浪频谱均可转化为变维分形的形式。
This paper proves that all the forms of wind wave frequency spectrum can be converted into the forms of variable dimension fractals.
文中还证明，各种形式的风浪频谱均可转化为变维分形的形式。
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