. Author manuscript; available in PMC: 2016 Jun 4.

Published in final edited form as: IEEE Int Conf Autom Face Gesture Recognit Workshops. 2015 May;1:10.1109/FG.2015.7163106. doi: 10.1109/FG.2015.7163106

TABLE II.

Standardized regression coefficients for predicting the performance of SIFT-based classifiers

	Number of subjects			Frames/subject

AU	β	t	Sig.	β	t	Sig.
1	0.95	11.75	<.001	−0.06	−0.76	.46
2	0.97	15.02	<.001	−0.04	−0.63	.54
6	0.99	26.64	<.001	0.01	0.28	.78
7	0.98	18.72	<.001	0.01	0.22	.83
10	0.88	7.73	<.001	−0.24	−2.08	.06
11	0.96	11.95	<.001	−0.04	−0.52	.61
12	0.96	12.35	<.001	−0.06	−0.74	.45
14	0.98	16.61	<.001	−0.06	−0.96	.36
15	0.97	14.21	<.001	−0.01	−0.13	.90
17	0.98	18.98	<.001	0.01	0.12	.90
23	0.98	17.39	<.001	0.08	1.50	.16
24	0.96	12.46	<.001	0.02	0.32	.76