Yong HAO, Qi-ming WANG, Shu-min ZHANG. Study on Online Detection Method of “Yali” Pear Black Heart Disease Based on Vis-Near Infrared Spectroscopy and AdaBoost Integrated Model[J]. Spectroscopy and Spectral Analysis, 2021, 41(9): 2764
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 9, 2764 (2021)
Fig. 1. Schematic diagram of the vis-near infrared spectroscopy online sorting device for ‘Yali' pear
Fig. 2. Arrangement top view of halogen lamp
Fig. 3. Energy spectra curve of normal pear and black heart pear
Fig. 4. Distribution of the first three principal components of normal pears and black heart pears
Fig. 5. AdaBoost algorithm principle
Fig. 6. Comparison of actual categories and predicted categories in WT-AdaBoost model for ‘Yali' pear samples
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Table 1. Sample set information
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Table 2. confusion matrix for classification result
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Table 3. kNN model results of qualitative identification of ‘Yali' pears with different pretreatment methods
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Table 4. NBC model results of qualitative identification of ‘Yali' pears with different pretreatment methods
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Table 5. SVM model results of qualitative identification of ‘Yali' pears with different pretreatment methods
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Table 6. AdaBoost qualitative identification results of ‘Yali' pears with different pretreatment methods
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Table 7. KNN, NBC, SVM and AdaBoost model test set prediction results
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