Table 4.

Comparison between the PS Feature Vector’s dimension (cf. Equation 8) and the PSM Feature Vector’s Dimension (cf. Equation 9)

k	Dimension of PS Vectora	m	Dimension of PSM Vectorb	Ratio γc
2	464	1	232	∼2
3	1,792	1	1,344	∼1.3
		2	336	∼5.3
4	6,912	1	6,912	1
		2	2,592	∼2.7
		3	432	∼16
5	26,624	2	16,640	∼1.6
		3	4,160	∼6.4
		4	520	∼51.2
6	102,400	4	6,000	∼17.07
		5	600	∼170.67
$⋮$	$⋮$	$⋮$	$⋮$	$⋮$
$⋮$	$⋮$	$⋮$	$⋮$	$⋮$

^aCalculated by Equation 8.

^bCalculated by Equation 9.

^cRatio of the number of column 2 and the number of column 4; it is the same with $\text{γ}=4^m\times \left[\left(k-m\right)!m!/k!\right]$, where m is given in column 3.