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A comparison study of three nonlinear multivariate data analysis methods in smartongue: Kernel PCA, LLE and Sammon Mapping

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Academic year: 2020

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Figure

Table 1. Six Green Tea Samples
Fig. 1: Sketch map of the structure of Smartongue
Fig. 3. The results of bitter solutions from the different data processing methods: (a) PCA; (b) Sammon mapping; (c) LLE; (d) Kernel  PCA with gauss kernel function; (e) Kernel PCA with polynomial kernel function; (f) Kernel PCA with sigmoid kernel function
Fig. 4. The results of artificial green tea samples from the different data processing methods: (a) PCA; (b) Sammon mapping; (c) LLE; (d)  Kernel PCA with gauss kernel function; (e) Kernel PCA with polynomial kernel function; (f) Kernel PCA with sigmoid kernel function
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