Hao MA, Kai ZHANG, Jiang-tao JI, Xin JIN, Kai-xuan ZHAO. Quantitative Detection of Agaricus Bisporus Freshness Based on VIS-NIR Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3740
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 12, 3740 (2021)
Fig. 1. Spectral pretreating
(a): Original spectra; (b): Smoothing+MSC
(a): Original spectra; (b): Smoothing+MSC
Fig. 2. Flowchart of data processing
Fig. 3. The flowchart of the ELM algorithm optimized with SOA
Fig. 4. Results of principal component analysis
Fig. 5. Preferred characteristic wavelength distribution
Fig. 6. Full spectroscopy and ELM detection results
Fig. 7. PCA+ELM detection results
Fig. 8. SPA+-ELM test results
Fig. 9. SPA+PSO-ELM test results
Fig. 10. SPA+SOA-ELM test results
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Table 1. Comparison results of the classificationmodel testing
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