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Rank-one residue iteration (RRI) is a recently developed block coordinate method for nonnegative matrix factorization (NMF). Numerical results show that the decomposed matrices generated by RRI method may have several columns, which are zero vectors. In this paper, by studying two special kinds of quadratic programming, we develop two block coordinate methods for NMF, rank-two residue iteration (RTRI)...
In order to overcome the restricts of linear discriminant analysis (LDA), such as multivariate Normal distributed classes with equal covariance matrix but different means and the single-cluster structure in each class, subclass discriminant analysis (SDA) is proposed recently. In this paper the kernel SDA is presented, called KSDA. Moreover, we reformulate SDA so as to avoid the complicated derivation...
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