Incremental Matrix-Based Subspace Method for Matrix-Based Feature Extraction

Figure 3

Angles between the first three kernel principal components (red, green, and blue) computed by the proposed method and the standard MKPCA. (a, b) Results of two-dimensional example for data capacity 200; is 30 and 50, respectively;  = 1 for Gauss function. (c, d) Results of digit “0” matrix set for data capacity 120, is 30 and 50, respectively;  = 1 for Gauss function.

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