Kernel Entropy Component Analysis with Nongreedy L1-Norm Maximization

Table 1

UCI datasets description.

Database
Ionosphere	351	33	2	30 × 2	175
Letter	20000	16	26	35 × 26	3870
Pendigits	10992	16	9	60 × 9	3500
Pima-Indians	768	8	2	100 × 2	325
WDBC	569	30	2	35 × 2	345
Wine	178	12	3	30 × 3	80

: number of samples, : number of dimensions, : number of classes, : number of training data, and : number of testing data.