Research Article

Two-Dimensional Extreme Learning Machine

Table 1

Summary of the image datasets for multiclass classification, . “Separate” indicates whether the training data and the testing data are provided separately.

Dataset # train # test # features # classes Separate

Yale_32 × 32 110 55 1024 15 16 No
Yale_64 × 64 110 55 4096 15 32 No
ORL_32 × 32 266 134 1024 40 16 No
ORL_64 × 64 266 134 4096 40 32 No
UMist 383 192 10304 20 50.5 No
GTface 500 250 307200 50 274.3 No
PIE 7703 3851 1024 68 16 No
Letter 15000 5000 16 26 2 Yes
Shuttle 43500 14500 9 7 1.5 Yes
USPS 7291 2007 256 10 8 Yes
MNIST 60000 10000 784 10 14 Yes