Research Article
A Symmetric Rank-One Quasi-Newton Method for Nonnegative Matrix Factorization
Algorithm 2
The SR1 algorithm for NMF.
Initialization | Input matrix , the maximum number of iteration: maxiter; | initial matrix ; | the approximate rank , . | for : maxiter | (1) , ; | (2) Compute the matrix by using the Algorithm 1, where the object function is (18); | (3) , ; | (4) , ; | Compute the matrix by using the Algorithm 1, where the object function is (21); | (5) , ; | (6) if the stopping criteria is met, then break. | end for |
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