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Table 4 Classification accuracies of 9-subjects across 6-filters using 3-feature combination for 6-classifiers

From: fNIRS-based Neurorobotic Interface for gait rehabilitation

Feature

Accuracy (%)

S1/S2/S3

S4/S5/S6

S7/S8/S9

KNN

LDA

QDA

NB

SVM

KNN

LDA

QDA

NB

SVM

KNN

LDA

QDA

NB

SVM

SM, SP, SS

60.4

58.8

71.7

67.5

74.2

70.8

63.8

58.3

63.3

73.3

58.8

61.7

65.8

63.3

60.0

SM, SP, KR

52.5

52.9

60.0

62.1

65.8

54.2

68.8

64.2

63.3

75.0

65.0

58.8

59.2

65.4

51.7

SM, SP, SK

56.7

54.6

55.4

61.3

58.3

64.6

65.8

63.8

62.1

69.2

60.4

59.2

63.8

62.9

60.8

SM, SP, VR

57.9

50.0

57.1

57.5

60.8

63.8

66.7

66.3

65.8

73.3

57.9

59.6

62.5

62.9

56.7

SS, SP, SK

56.7

55.4

57.5

66.7

75.0

64.6

55.8

62.9

64.6

64.2

60.4

62.1

63.3

67.1

64.2

SP, KR, VR

52.1

52.5

56.7

60.4

55.8

54.2

67.1

62.9

66.3

75.8

65.0

64.6

66.7

67.5

63.3

SP, SS, VR

60.0

55.8

61.3

66.3

72.5

65.0

44.6

58.3

64.6

71.7

58.8

60.4

66.3

64.2

57.5

VR, SS, KR

52.9

50.4

60.8

67.5

69.2

55.4

62.1

60.4

66.3

77.5

65.0

64.6

65.0

66.7

63.3

VR, SS, SM

61.7

60.8

69.2

66.3

73.3

72.5

58.3

64.6

70.0

71.7

58.8

62.9

60.8

64.6

62.5

VR, SM, SK

57.5

53.3

54.2

56.7

60.0

62.5

65.8

66.7

67.5

68.3

60.4

57.9

67.5

65.4

61.7

VR, SM, KR

52.5

52.5

56.3

58.8

60.8

54.6

67.5

67.1

70.0

80.0

65.0

60.8

62.9

67.1

57.5

KR, SP, SS

52.1

54.2

65.0

67.5

68.3

54.2

65.8

59.6

62.5

73.3

65.0

61.3

63.3

63.3

61.7

KR, SM, SK

57.9

52.1

59.6

61.7

65.0

63.3

67.9

63.3

64.2

69.2

67.1

63.3

59.2

62.5

55.0

SS, SM, SK

57.5

55.4

64.6

68.3

67.5

63.3

65.8

61.3

65.0

63.3

60.4

59.6

61.7

63.3

60.8

SS, SK, KR

57.9

56.7

48.8

66.7

73.3

63.3

61.3

57.5

62.5

70.0

67.1

58.8

64.2

59.6

56.7

SS, SM, KR

52.5

55.8

68.8

67.1

68.3

54.6

68.3

63.8

64.2

67.5

65.0

64.6

65.4

66.3

59.2

SS, SK, VR

57.1

55.8

54.6

68.3

75.0

60.8

54.2

62.1

68.8

62.5

60.8

63.3

66.3

65.0

69.2

SK, VR, KR

57.9

51.3

47.1

60.0

49.2

63.3

62.1

58.8

64.6

68.3

67.1

64.2

65.0

64.6

68.3

SK, SP, KR

57.9

50.8

46.7

61.3

48.3

63.3

67.1

62.1

62.1

71.7

67.1

60.4

65.4

63.3

55.8

SK, VR, SP

56.7

50.8

54.2

55.8

45.8

64.6

56.7

62.5

67.9

70.8

60.4

62.1

64.2

67.1

59.2

SM, SP, SS

70.4

57.5

73.8

65.4

74.2

81.3

57.9

60.4

62.9

70.8

73.3

67.5

70.8

61.7

72.5

SM, SP, KR

55.8

55.0

70.8

65.8

71.7

56.7

50.8

65.8

62.1

63.3

53.3

60.0

59.6

59.2

64.2

SM, SP, SK

58.3

53.8

70.0

66.3

70.0

54.2

44.2

61.3

62.5

62.5

51.3

48.3

53.8

57.9

50.8

SM, SP, VR

67.9

54.2

72.5

62.1

76.7

64.2

47.1

62.9

60.0

65.0

60.8

54.6

58.8

61.3

66.7

SS, SP, SK

58.3

62.1

56.3

67.9

70.0

54.2

59.2

59.2

62.5

65.8

52.5

65.4

65.0

60.8

72.5

SP, KR, VR

55.4

54.2

62.5

60.8

60.0

55.0

53.3

57.1

60.4

55.8

52.1

57.9

62.5

61.7

62.5

SP, SS, VR

53.8

60.0

62.9

65.0

69.2

69.2

57.9

63.8

64.6

63.3

66.7

69.2

70.8

62.5

70.0

VR, SS, KR

54.2

60.8

50.0

65.8

64.2

53.3

59.2

58.8

61.3

68.3

52.9

72.5

68.8

65.4

67.5

VR, SS, SM

61.7

57.9

69.6

64.6

72.5

75.0

59.6

65.4

65.0

73.3

75.0

67.1

72.5

63.3

69.2

VR, SM, SK

58.3

54.6

70.4

65.4

71.7

56.3

46.3

62.5

60.0

65.8

50.0

49.6

60.8

60.8

65.8

VR, SM, KR

54.2

53.8

72.1

66.3

68.3

55.0

54.6

66.7

58.3

66.7

52.1

59.2

65.0

61.3

68.3

KR, SP, SS

55.4

60.8

51.3

63.8

64.2

54.6

55.4

57.9

62.9

68.3

52.1

70.4

70.0

60.4

70.8

KR, SM, SK

67.1

62.9

75.0

66.3

70.8

60.0

53.3

57.1

61.3

57.5

51.3

55.0

54.6

60.4

60.8

SS, SM, SK

58.3

62.1

63.8

70.0

70.0

56.3

59.6

59.2

64.2

67.5

50.0

68.3

70.0

62.9

73.3

SS, SK, KR

67.1

61.7

66.7

69.2

76.7

60.0

59.6

63.8

58.8

68.3

51.3

72.5

70.0

62.5

69.2

SS, SM, KR

54.2

60.0

59.2

65.8

70.0

55.0

59.2

63.8

61.3

70.8

52.1

69.2

71.7

63.8

78.3

SS, SK, VR

57.9

62.1

56.3

69.2

72.5

57.1

62.9

59.6

61.3

68.3

51.3

66.3

65.0

64.2

62.5

SK, VR, KR

67.1

57.1

73.3

62.9

68.3

60.0

55.4

56.7

59.6

60.0

51.3

54.2

61.3

62.1

67.5

SK, SP, KR

67.1

58.8

74.6

62.5

70.0

60.0

50.0

54.2

61.7

55.0

51.7

55.4

57.9

61.3

53.3

SK, VR, SP

58.3

51.7

56.7

60.4

59.2

54.2

53.3

61.7

61.3

61.7

52.5

51.3

61.7

61.3

60.8

SM, SP, SS

61.7

43.8

57.1

55.8

55.8

68.8

60.4

71.7

62.5

75.0

80.4

60.8

76.3

76.3

83.3

SM, SP, KR

56.7

38.8

56.3

56.7

61.7

57.5

56.3

57.9

56.3

55.0

71.3

65.4

65.4

74.6

80.0

SM, SP, SK

59.6

60.4

64.2

59.6

60.0

47.1

57.1

58.3

57.1

54.2

64.2

62.5

66.7

72.9

81.7

SM, SP, VR

57.1

62.9

64.2

55.0

58.3

57.1

62.1

64.6

62.1

53.3

73.8

62.9

63.8

63.8

77.5

SS, SP, SK

59.6

60.4

59.6

60.4

58.3

47.1

63.8

64.6

64.6

63.3

64.2

63.8

73.3

76.3

79.2

SP, KR, VR

56.7

56.3

56.3

49.6

59.2

57.9

62.9

65.0

62.1

53.3

71.3

65.8

69.6

67.9

77.5

SP, SS, VR

52.5

57.1

55.4

47.5

55.0

65.8

64.6

67.9

63.8

65.0

66.3

62.5

76.3

72.5

82.5

VR, SS, KR

55.4

56.7

53.8

51.3

58.3

58.3

62.5

67.5

65.4

80.0

71.3

66.3

72.1

70.8

77.5

VR, SS, SM

66.7

50.8

64.6

55.8

58.3

74.2

62.9

66.3

62.9

68.3

77.9

60.4

73.3

75.4

83.3

VR, SM, SK

59.6

62.1

65.4

58.8

60.8

47.5

58.8

58.8

62.1

56.7

65.8

63.3

67.9

72.1

82.5

VR, SM, KR

55.8

47.5

61.7

55.4

60.8

58.8

63.3

62.5

62.1

57.5

71.3

65.4

65.8

68.3

81.7

KR, SP, SS

56.7

42.1

54.2

60.4

58.3

57.9

60.4

65.4

66.7

69.2

71.3

67.1

72.1

72.9

80.8

KR, SM, SK

62.1

62.5

60.8

62.9

64.2

54.2

53.8

57.1

55.8

55.0

77.5

66.3

70.4

74.6

75.8

SS, SM, SK

59.6

60.0

66.7

59.6

60.8

47.5

57.1

51.7

61.7

65.0

65.8

66.3

68.3

78.3

85.8

SS, SK, KR

62.1

55.0

55.0

63.8

48.3

54.2

55.0

57.9

65.0

67.5

77.5

71.3

73.8

73.8

80.8

SS, SM, KR

55.8

46.7

62.9

58.3

56.7

58.8

56.7

64.6

64.2

65.0

71.3

70.8

70.4

77.1

86.7

SS, SK, VR

59.6

58.8

59.2

58.8

58.3

47.5

64.2

68.3

63.8

64.2

65.8

64.2

74.2

74.2

80.0

SK, VR, KR

62.1

59.2

58.3

58.3

64.2

54.2

60.4

65.0

61.3

60.0

77.5

68.8

70.8

70.4

77.5

SK, SP, KR

62.1

60.0

59.2

63.8

62.5

54.2

59.2

60.0

50.0

58.3

77.5

67.9

72.9

73.3

75.8

SK, VR, SP

59.6

57.5

53.3

57.1

60.8

47.1

59.6

62.9

62.1

52.5

64.2

60.4

67.9

71.3

80.0