Yan Peng, Chenjun Shi, Yiming Zhu, Songlin Zhuang. Qualitative and Quantitative Analysis Algorithms Based on Terahertz Spectroscopy for Biomedical Detection[J]. Chinese Journal of Lasers, 2019, 46(6): 0614002
- Chinese Journal of Lasers
- Vol. 46, Issue 6, 0614002 (2019)
Fig. 1. Spectra of four pure samples of L-Glu, D-MI, CMH, and GABA
Fig. 2. Measured spectra and calculated spectra. (a) Mixture sample of L-Glu, D-MI, and CMH; (b) mixture sample of all four components
Fig. 3. Spectra of 10 mixture samples. (a) Before wavelet transform; (b) after wavelet transform
Fig. 4. RMSE of three SVR parameters based on leave-one-out cross validation. (a) Parameter c when g=0.01and e=0.01; (b) parameter g when c=0.25 and e=0.01; (c) parameter e when c=0.25 and g=0.01
Fig. 5. Actual and predicted concentrations of 10 mixture samples. (a) NAA; (b) NE
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Table 1. Concentration results of mixture sample of L-Glu, D-MI and CMH
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Table 2. Concentration results of mixture sample of all four components
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Table 3. Parameters of mixture samples including NAA and NE
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Table 4. RMSE and correlation coefficient between predicted and actual concentrations of NAA and NE in mixture
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Table 5. Accuracy of algorithm models under different sample numbers
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Table 6. Prediction accuracy of different algorithms
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