Incremental Nonnegative Matrix Factorization for Face Recognition

Table 8

Running times on sample incremental learning.

Incremental training number	NMF (s)	BNMF (s)	INMF (s)
0	79.58	57.35	37.24
7	79.77	2.34	1.20
14	80.02	3.12	2.36
21	80.23	4.53	3.21