Introduction - If you have any usage issues, please Google them yourself
Input: X, training data, dim*num
Y, training data labels, num*class
para.alpha, para.beta, regularization parameters
para.rd, reduced dimensionality
Web Image Annotation via Subspace-Sparsity Collaborated Feature Selection.
Zhigang Ma, Feiping Nie, Yi Yang, Jasper Uijlings, and Nicu Sebe.
IEEE Transactions on Multimedia (TMM) 14(4):1021-1030, 2012.