Require: Data Matrix , initial matrices , , and ;  (1) while stopping criterion not satisfied do  (2) Computing and ;  (3) for to do  (4)  (5) Normalizing  (6) end for  (7) Computing and ;  (8) for to do  (9)  (10) end for  (11) Using the fixed or adaptively tuning according to the change of the sparsity of ;  (12) end while 
