Near-infrared spectral variable selection method based on Monte Carlo variable combination cluster
A technology of near-infrared spectroscopy and variable selection, which is applied in the field of near-infrared spectroscopy variable selection based on Monte Carlo variable combination clusters, which can solve the problems of less samples and more variables, the inclusion of non-informative variables and interference variables, and the impact of model prediction performance. , to achieve the effect of improving stability and reliability, reducing dependence and avoiding influence
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[0026] Embodiment 1: In order to prove the applicability of the present invention, a detailed description will be given in conjunction with examples. However, the present invention can also be applied to spectral data other than the example used here.
[0027] figure 1 Be the flow chart of the near-infrared spectrum variable selection method (MC-VCPA) algorithm based on the Monte Carlo variable combination cluster provided by the invention, as seen, the present invention specifically comprises the following steps:
[0028] (1) The chemical data of 93 wheat and wheat proteins used in this research come from the Beijing Fangfude Research Center of the State Grain Administration, using the near-infrared spectrum of each wheat sample with the MCS611NIR fiber optic spectrometer from Carl Zeiss, Germany. The spectral range 950 ~ 1690nm, each experimental sample collected 3 light, take the average absorbance. Use wavelet packet (WTP) to eliminate the noise signal in the spectrum. ...
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