Table 8 The recognition accuracy results (%) of ${\text{WS-HEQ}}_{\text{II}}^{\left(1\right)}$ using the optimal scaling factor α (in parentheses)

99.36 (0.7)

99.06 (0.8)

99.05 (0.8)

99.11 (0.4)

99.36 (0.7)

99.06 (0.8)

99.05 (0.8)

99.11 (0.4)

99.17 (0.7)

99.15 (0.4)

96.56 (0.7)

97.52 (0.6)

98.12 (0.8)

96.98 (0.8)

97.54 (0.7)

97.94 (0.8)

98.42 (0.5)

98.36 (0.8)

96.96 (0.4)

97.76 (0.8)

94.60 (0.4)

95.71 (0.7)

97.17 (0.7)

94.60 (0.5)

95.52 (0.6)

96.55 (0.6)

96.90 (0.6)

97.25 (0.8)

94.41 (0.6)

96.28 (0.6)

89.65 (0.5)

92.14 (0.6)

93.83 (0.7)

89.48 (0.5)

91.83 (0.7)

93.05 (0.6)

94.72 (0.8)

94.32 (0.6)

89.75 (0.4)

92.62 (0.6)

79.89 (0.5)

80.11 (0.6)

84.28 (0.8)

78.22 (0.5)

80.07 (0.7)

82.56 (0.5)

85.51 (0.8)

84.33 (0.6)

79.83 (0.4)

81.65 (0.6)

58.27 (0.4)

53.42 (0.7)

61.65 (0.7)

57.27 (0.4)

56.77 (0.7)

58.92 (0.5)

65.49 (0.7)

61.65 (0.8)

57.72 (0.4)

58.74 (0.6)

28.43 (0.5)

22.76 (0.8)

28.81 (0.9)

30.48 (0.4)

25.85 (0.9)

27.33 (0.6)

31.26 (0.9)

29.28 (0.9)

29.60 (0.5)

27.42 (0.8)