Zhi-chao YANG, Lu SHI, Jing CAI, Hui ZHANG. Raman Spectral Blood Stain Identification Based on Band Selection[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3137
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 10, 3137 (2021)
Fig. 1. Results of grid search for C and gamma
Fig. 2. Schematic diagram of a spectral dimensionality reduction algorithm
(a): Band selection method; (b): Mathematical transformation method
(a): Band selection method; (b): Mathematical transformation method
Fig. 3. The training set accuracy of the three band selection methods for different bands number
Fig. 4. Accuracy of training set and testing set for five methods
Fig. 5. The best 25 bands obtained by mutual information method
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Table 1. Accuracy of training set and test set for five methods
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