A Constrained Algorithm Based NMF_α for Image Representation

Table 5

The comparison of classification accuracy rates on the Caltech 101 Database.

	Ac() (%)
	CNMF
2	66.39	78.80	78.31 ± 1.69	80.10 ± 2.07	82.76 ± 3.56
3	60.91	69.98	68.77 ± 1.57	72.94 ± 1.51	73.59 ± 3.51
4	50.82	57.50	58.19 ± 1.98	56.28 ± 1.96	59.89 ± 2.82
5	50.83	53.67	53.71 ± 1.02	54.12 ± 1.44	55.06 ± 2.63
6	50.49	55.05	55.63 ± 0.89	58.04 ± 1.47	58.97 ± 1.97
7	46.09	51.12	50.04 ± 0.11	51.73 ± 0.25	52.36 ± 1.81
8	44.21	50.50	51.72 ± 0.51	48.37 ± 1.59	52.64 ± 1.52
9	41.34	46.58	47.85 ± 0.28	45.87 ± 0.30	49.54 ± 1.23
10	40.80	46.02	46.02 ± 0.05	45.76 ± 0.08	46.02 ± 0.26
Avg.	50.21	56.58	56.69	57.02	58.98