Boundedness of modified multiplicative updates for nonnegative matrix factorization. - Jiro Katayama; Norikazu Takahashi; Jun'ichi Takeuchi (CAMSAP, 2013)

A unified global convergence analysis of multiplicative update rules for nonnegative matrix factorization. - Norikazu Takahashi; Jiro Katayama; Masato Seki; Jun'ichi Takeuchi (Comput. Optim. Appl., 2018)