Kernel Sliced Inverse Regression: Regularization and Consistency

Table 1

Mean and standard deviations for error rates in classification of digits.

Digit	RKSIR	KSIR	RSIR	kNN
0	0.0273 (0.0089)	0.0472 (0.0191)	0.0487 (0.0128)	0.0291 (0.0071)
1	0.0150 (0.0049)	0.0177 (0.0051)	0.0292 (0.0113)	0.0052 (0.0012)
2	0.1039 (0.0207)	0.1475 (0.0497)	0.1921 (0.0238)	0.2008 (0.0186)
3	0.0845 (0.0208)	0.1279 (0.0494)	0.1723 (0.0283)	0.1092 (0.0130)
4	0.0784 (0.0240)	0.1044 (0.0461)	0.1327 (0.0327)	0.1617 (0.0213)
5	0.0877 (0.0209)	0.1327 (0.0540)	0.2146 (0.0294)	0.1419 (0.0193)
6	0.0472 (0.0108)	0.0804 (0.0383)	0.0816 (0.0172)	0.0446 (0.0081)
7	0.0887 (0.0169)	0.1119 (0.0357)	0.1354 (0.0172)	0.1140 (0.0125)
8	0.0981 (0.0259)	0.1490 (0.0699)	0.1981 (0.0286)	0.1140 (0.0156)
9	0.0774 (0.0251)	0.1095 (0.0398)	0.1533 (0.0212)	0.2006 (0.0153)
Average	0.0708 (0.0105)	0.1016 (0.0190)	0.1358 (0.0093)	0.1177 (0.0039)