《Table 3 Classification results of PCA, PCA-BP and KL-BP》

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《基于分子光谱图像识别的食用油快速分类研究（英文）》

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Let the IR spectra data compressed by PCA and KL decomposition as the input of the neural networks to establish the classifiers of PCA-BP and KL-BP.The classification results are shown in Table 3.Since IR spectra projections of edible oils overlap on the principal component subspaces，and the nonlinear classifiers such as the neural networks are needed to classify them.