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Table 5 Performance of the ML algorithms

From: A multi-expert ensemble system for predicting Alzheimer transition using clinical features

Classifier models

Sensitivity (%)

Specificity (%)

Precision (%)

NPV (%)

BA (%)

F1-score

MEE proposed

73.5

88.3

68.3

91.5

80.9

70.8

AdaBoost

54.2

93.3

73.8

87.0

73.7

62.5

MLP

76.3

78.4

54.4

91.6

77.4

63.5

NB

48.5

90.0

61.1

85.4

69.4

54.1

DT

59.1

87.0

66.0

87.5

73.1

62.4

KNN

52.8

93.5

73.4

87.4

74.6

61.4

LR

75.0

79.5

55.2

91.3

77.3

63.6

RF

68.6

86.0

63.1

89.9

77.3

65.7

SVM

65.6

89.0

66.9

89.4

77.3

66.2

  1. Sensitivity: ratio between the AD converter subjects correctly labeled by the algorithm and all subjects that actually converted; Specificity: ratio between the non-AD converter subjects correctly labeled by the algorithm and all subjects that have not actually converted; Precision: ratio between the correctly AD converter subjects labeled by the algorithm and the AD converters; Negative predictive value (NPV): the proportion of predicted negatives which are real negatives. It reflects the probability that a predicted negative is a true negative; Balanced accuracy (BA): the average between sensitivity and specificity; F1-score: the harmonic average of the sensitivity and precision