Code for "SoftmaxU"
Training dataset is :
COIL20: the training classes are 1 2 5 10 
USPS: the training classes are 2 7 6 9
BALLET: the training classes are 1 3 4 5 6 7 8 9 13 14 15 16 17 18 20 23 24 25 31 32
YaleB: the training classes are 1 2 3 4 8 9 10 11 12 14 15 16 17
MNIST: the training classes are 1 3 5 6 7 9