Method for building near-infrared qualitative analysis model
A qualitative analysis and method building technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve the problems of few near-infrared qualitative analysis model building methods and near-infrared spectra.
Inactive Publication Date: 2015-02-25
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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[0005] At present, there are few studies and applications of near-infrared spectroscopy in the field of qualitative analysis, and there are fewer methods for establishing qualitative analysis models involving near-infrared spectroscopy. Therefore, there is an urgent need for a method for establishing qualitative analysis models that is simple to operate, fast, efficient, and high in accuracy.
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[0133] In this experiment, taking the haploid and polyploid identification of corn varieties as an example, the method provided by the invention is used to establish the experiment of haploid and polyploid analysis and identification models, and the experimental test results are given to verify the established method of the present invention. The effect of the model.
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The invention discloses a method for building a near-infrared qualitative analysis model. The method includes the steps of (1) collecting near-infrared spectroscopic data of a sample, and determining modeling sample data; (2) preprocessing the modeling sample data; (3) conducting partial least square feature extraction on the modeling sample data; (4) conducting orthogonal linear discriminant analysis feature extraction on the modeling sample data; (5) building the qualitative analysis model with a support vector machine method. The method is accurate, efficient, rapid and free of professional operation.
Description
technical field [0001] The invention relates to a modeling method in the field of near-infrared qualitative analysis, in particular to a method for establishing a near-infrared qualitative analysis model. Background technique [0002] Near Infrared Spectroscopy (Near Infrared Spectroscopy, NIRS) analysis is an analytical method for qualitative and quantitative analysis of organic matter using the material information contained in the near-infrared spectral region. advantages of ingredients. Near-infrared spectroscopy is an indirect analysis technique, which realizes qualitative or quantitative analysis of unknown samples through the establishment of a calibration model. As a green and versatile analytical technique, near-infrared spectroscopy is widely used in agriculture, food, petrochemicals, medicine, forestry, textiles, mineralogy, and cosmetics. [0003] With the rapid development of analysis technology, various detection technologies based on near-infrared spectrosco...
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IPC IPC(8): G06K9/62G06K9/46
CPCG06F18/21322G06F18/21326G06F18/2411
Inventor 董肖莉李卫军覃鸿张丽萍
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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