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A Spectral Model Transfer Method Based on Cluster Analysis

A technology of cluster analysis and transfer method, applied in the direction of gene model, color/spectral characteristic measurement, genetic law, etc., can solve the problems of unrealized fast measurement, tedious and time-consuming, etc., to ensure stability and accuracy, small error, Achieve the effect of automatic machine calibration

Active Publication Date: 2022-04-01
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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Problems solved by technology

This means that before using the spectral model of the master sample, it is necessary to understand the slave sample, that is, to determine the chemical and spectral data of a representative part of the slave sample, and the former is a tedious and time-consuming process.
Therefore, the existing model transfer has not achieved a real quick test

Method used

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  • A Spectral Model Transfer Method Based on Cluster Analysis
  • A Spectral Model Transfer Method Based on Cluster Analysis
  • A Spectral Model Transfer Method Based on Cluster Analysis

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0044] The invention provides a spectral model transfer method based on cluster analysis, such as figure 1 The schematic diagram shown includes the following process: first establish the total sample, collect the spectral modeling set of each sample in the total sample, then perform cluster analysis on the spectra of the samples, establish a subset one by one, and then analyze each subset Set up a spectral model separately, perform cluster analysis on the samples to be tested, determine which category it belongs to, and then analyze according to the spectral model of the category to which it belongs, and output the results.

[0045] In the embodiment of the present invention, 60 soils were collected from the bottom of Fushan Mountain, Zaoshan Mountain and Licun River in Qingda...

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Abstract

The invention discloses a spectral model transfer method based on cluster analysis, which comprises the following steps: (1) classifying samples, adopting a density clustering algorithm, and performing cluster analysis on samples according to the density distance between sample spectra, so as to classify samples Classify; (2) spectral modeling, according to the cluster analysis results, respectively establish spectral models for similar samples; (3) automatic model transfer, for the sample to be tested, collect its spectrum, and perform Cluster analysis to determine the category it belongs to, so as to determine the spectral model it belongs to; according to the spectral model the sample belongs to, perform quick sample measurement and automatically complete the model transfer. The method disclosed by the invention can quickly and efficiently complete the spectral model transfer, can be used for automatic instrument calibration, truly realizes rapid sample measurement, and ensures measurement accuracy.

Description

technical field [0001] The invention relates to a spectral model transfer method, in particular to a spectral model transfer method based on cluster analysis. Background technique [0002] Spectral analysis technology is widely used in geology, metallurgy, petroleum, chemical industry, agriculture, Medicine, biochemistry, environmental protection and many other aspects. However, these applications are limited to the interior of homogeneous samples, which greatly limits the depth to which this technique can be used. [0003] To apply the spectral model of one type of sample to another type of sample, model transfer must be performed. Previous model transfer methods fall into two categories: labeled methods and unlabeled methods. Among them, the standard method uses a small-scale standard sample set to recalibrate (model), the procedure is cumbersome and time-consuming, and the effect is better; the standard-free method completely relies on the chemometric method, the proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/25G06F30/27G06N3/12G06K9/62
CPCG01N21/25G06N3/126G06F30/20
Inventor 范萍萍刘杰任国兴侯广利吕美蓉李雪莹刘岩
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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