Two Efficient Algorithms for Orthogonal Nonnegative Matrix Factorization

Table 4

Comparison of ORE testing on image panda.

Rank J	Algorithm 1	Algorithm 2	Algorithm 3	Algorithm 4
10	372.6551 ± 10.2546		0.9955 ± 0.1257	0.9210 ± 0.1546
20	686.1020 ± 40.1120		0.9979 ± 0.1522	0.9664 ± 0.1753
40	± 70.1885		0.9995 ± 0.2561	0.9718 ± 0.2051
60	± 114.2850		0.9999 ± 0.2101	0.9957 ± 0.2689
80	± 160.4782		1.0000 ± 0.2008	0.9980 ± 0.1280