Alternating Block Linearized Bregman Iterations for Regularized
Nonnegative Matrix Factorization
Abstract
In this paper, we propose an alternating block variant of the linearized
Bregman iterations for a class of regularized nonnegative matrix
factorization problems (NMF). The proposed method exploits the block
structure of NMF, utilizes the smooth adaptable property of the loss
function based on the Bregman distance, and at the same time follows the
iterative regularization idea of the linearized Bregman iterations
method. Theoretically, we show that the proposed method is a descent
method by adjusting the involved parameters. Finally, we end with
several illustrative numerical experiments.