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- W4318173886 abstract "Flavonoids are natural compounds with diverse structures. This type of nature product is considered to possess a wide range of health beneficial effects. Different skeleton structures and substituent groups lead to different Raman spectral features. In this work, we developed three Raman spectrum analysis methods based on artificial intelligence to classify 18 flavonoids. Firstly, applying principal component analysis (PCA) as dimension reduction method, we compress the 1300cm<sup>-1</sup> -1600cm<sup>-1</sup> spectral band into several important variables. The results obtained by the preprocessing methods were combined with K-Nearest Neighbor algorithm (KNN), support vector machine (SVM) for classification. Secondly, the combination of relevant features was taken by advanced machine learning method of random forest (RF). In terms of the accuracy of the results, all the methods achieved acceptable classification accuracy, which was almost over 84% on the test set. The experimental results demonstrated that the Raman spectroscopy study based on corresponding unique vibration mode exhibited application prospects in chemical structure classification and pharmacological activity prediction." @default.
- W4318173886 created "2023-01-27" @default.
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- W4318173886 date "2023-03-15" @default.
- W4318173886 modified "2023-10-14" @default.
- W4318173886 title "Raman spectra-based structural classification analysis of flavone and isoflavone" @default.
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- W4318173886 doi "https://doi.org/10.1117/12.2655548" @default.
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