Spectroscopy and Spectral Analysis, Volume. 41, Issue 11, 3377(2021)
Prediction Model of TVB-N Concentration in Mutton Based on Near Infrared Characteristic Spectra
Figures & Tables(16)
Fig. 2. The outlier results detected by Monte Carlo sampling method
Fig. 9. Prediction results of TVB-N concentration in mutton by CARS-PLS model
Fig. 10. Prediction results of TVB-N concentration in mutton by CARS-SVM model
Fig. 11. Prediction results of TVB-N concentration in mutton by CARS-LS-SVM model
Table 1. Statistical results of TVB-N concentration of mutton samples
View tableView in ArticleTable 1. Statistical results of TVB-N concentration of mutton samples
样本集 样本数 TVB-N含量/(mg·100 g-1) 最大值 最小值 平均值 标准差 校正集 87 26.58 4.81 14.51 5.82 验证集 29 23.26 5.55 12.66 5.07
Table 2. Comparison of PLS prediction models with different pretreatment methods
View tableView in ArticleTable 2. Comparison of PLS prediction models with different pretreatment methods
预处理方法 主成
分校正集 验证集 RMSEC RMSEV RAW 11 0.848 1 2.253 4 0.808 5 2.180 9 SNV 9 0.710 3 2.509 7 0.654 6 3.207 9 MSC 12 0.775 5 2.293 8 0.696 6 3.296 2 Normalization 10 0.839 3 2.317 7 0.798 5 2.237 3 Centering 9 0.840 6 2.308 6 0.814 8 2.144 8 Autoscaling 8 0.705 1 2.515 2 0.694 0 3.290 2 MAS 12 0.839 9 2.313 7 0.814 6 2.146 0 SGS 11 0.850 2 2.211 5 0.824 6 2.105 8
Table 3. Comparison of PLS models with different wavelength selection methods
View tableView in ArticleTable 3. Comparison of PLS models with different wavelength selection methods
特征波长
提取方法变量
个数主成
分校正集 验证集 RMSEC RMSEV Full spectrum 1 921 9 0.840 2 2.311 5 0.814 6 2.145 8 CARS 14 9 0.890 0 1.917 8 0.873 6 1.771 6 UVE 703 9 0.834 4 2.353 0 0.816 7 2.133 5 IUVE 144 9 0.844 8 2.278 0 0.823 7 2.092 3 SPA 15 10 0.826 1 2.411 4 0.798 4 2.237 7
Table 4. Comparison of SVM models with different wavelength selection methods
View tableView in ArticleTable 4. Comparison of SVM models with different wavelength selection methods
特征波长
提取方法参数
(C)参数
(γ)校正集 验证集 RMSEC RMSEV Full spectrum 16.000 0 0.003 9 0.926 8 1.565 0 0.826 1 2.078 2 CARS 48.502 9 1.000 0 0.939 1 1.426 7 0.801 6 2.219 7 UVE 9.189 6 0.006 8 0.900 5 1.824 2 0.823 3 2.095 2 IUVE 1.741 1 0.011 8 0.916 1 1.674 9 0.824 1 2.090 1 SPA 256.000 0 0.189 5 0.881 3 1.992 1 0.791 9 2.273 7
Table 5. Comparison of LS-SVM models with different wavelength selection methods
View tableView in ArticleTable 5. Comparison of LS-SVM models with different wavelength selection methods
特征波长
提取方法参数
(γ)参数
(σ2)校正集 验证集 RMSEC RMSEV Full spectrum 93.497 6 3 641.32 8 0.914 5 1.690 7 0.844 7 1.964 3 CARS 12.031 3 5.627 6 0.923 5 1.599 0 0.850 1 1.929 4 UVE 26.185 0 1 118.810 0.901 3 1.817 0 0.855 1 1.896 9 IUVE 94.239 7 1.716.1 0.911 2 1.723 4 0.856 8 1.886 2 SPA 131.846 9 20.751 5 0.879 3 2.008 8 0.824 3 2.089 2
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Xu ZHANG, Xue-bing BAI, Xue-pei WANG, Xin-wu LI, Zhi-gang LI, Xiao-shuan ZHANG. Prediction Model of TVB-N Concentration in Mutton Based on Near Infrared Characteristic Spectra[J]. Spectroscopy and Spectral Analysis, 2021, 41(11): 3377
Paper Information
Category: Orginal Article
Received: Sep. 1, 2020
Accepted: --
Published Online: Dec. 17, 2021
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