Table 4.

Details for assignment of scores.

Parameters	Criteria	Conditions (Scoring Method) *
Contour	circular contour	$p_{fc}\ge {\theta }_{c1}$ 1
	closed contour	$d_{\max }^c\ge {\theta }_{c2}$ 2
	appropriately sized contour	$A_c/W_c\ge {\theta }_{c3}$ 3
Numbers	all and no additional numbers	$N=15$ & $0\le D[j]\le 9$ for all j & n(D[j] = 1) = 5 & n(D[j] = 2) = 2
	correct order of numbers	$R_{seq}\ge {\theta }_n$ 4
	correct position of numbers	$n(d_{cn}[j]\le {\ell }_{dc}{}^5)/n(d_{cn}[j])>{\theta }_{dc}{}^6$
	positioning of numbers within contour	$R_{cN}<R_{cL}$,
Hands	two hands	$p_{fh}>{\theta }_{h1}$ 7
	one hand	$p_{fh}>{\theta }_{h2}$ 8
	correct proportion of hands	$p_{fh}>{\theta }_{h1}$ & $abs(n(S_1)-n(S_2))>{\theta }_{pr}$ 9
	correct hour target number	$abs(P(x[n_h],y[n_h])-P(x[h_t],y[h_t]))<\epsilon$ 10
	correct minute target number	$abs(P(x[n_m],y[n_m])-P(x[m_t],y[m_t]))<\epsilon$
Center	existence or inference of a center	$p_{fh}>{\theta }_{h1}$ or $abs(P(x[n],y[n])-P(x_{mid}^c,y_{mid}^c))<{\epsilon }_c$ 11
Total sum	13

* heuristic values of the thresholds: ¹ ${\theta }_{c1}=75.00$ pixels; ² ${\theta }_{c2}=50.00$ pixels; ³ ${\theta }_{c3}=0.1$; ⁴ ${\theta }_n=65.00$ pixels; ⁵ ${\ell }_{dc}=100.00$ pixels; ⁶ ${\theta }_{dc}=0.65$; ⁷ ${\theta }_{h1}=65.00$ pixels; ⁸ ${\theta }_{h2}=50.00$ pixels; ⁹ ${\theta }_{pr}=30.00$ pixels; ¹⁰ $\epsilon =200.00$ pixels; ¹¹ ${\epsilon }_c=75.00$ pixels.