Regularized Embedded Multiple Kernel Dimensionality Reduction for Mine Signal Processing

Table 4

RI of different dimensionality reduction algorithms for the clustering task.

Datasets	MKL-TR	MKL-SRTR	MKL-DR	MKL-EGE
Ionosphere	0.5740	0.5762	0.5853	0.6034
Sonar	0.5023	0.5000	0.5000	0.5019
USPS	0.8690	0.8869	0.8619	0.8720
Isolet	0.9454	0.9497	0.9340	0.9668
MINIST	0.8822	0.8871	0.8870	0.9087
Yale	0.8942	0.9028	0.9009	0.9215
PIE	0.6338	0.6492	0.6335	0.6953
ORL	0.9536	0.9505	0.9517	0.9798
COIL-20	0.8945	0.8929	0.8945	0.9075
20NG (comp)	0.6883	0.6646	0.6648	0.7897
20NG (rec)	0.9249	0.9183	0.9172	0.9662
20NG (sci)	0.9072	0.9193	0.8157	0.9316
20NG (talk)	0.5655	0.6636	0.6210	0.7239