A Novel Semi-Supervised Learning Method Based on Fast Search and Density Peaks

Figure 7

The projections of the learning set for KLFDA, Semi-KLFDA, and KPCA, respectively, when the number of the labeled samples is 20. (a)KPCA; (b)KLFDA; (c)Semi-KLFDA; (d)KFDA; (e)WKFDA.

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