Table 9 Test results obtained when the threshold of the second layer LightGBM OvR model is set to 0.4 and 0.6.

From: Emerging infectious disease surveillance using a hierarchical diagnosis model and the Knox algorithm

Category of infectious diseases

The number of infectious diseases predicted by the first-level model(TP1K + FP1k)

Threshold is 0.4

Threshold is 0.6

Sensitivity2k

FNR2k

FPR2k

Sensitivity2k

FNR2k

FPR2k

Viral hepatitis

16,207

87.44

12.56

58.79

94.57

5.43

63.52

Influenza

3008

96.82

3.18

26.67

92.39

7.61

44.67

Tuberculosis

4101

90.43

9.57

22.69

85.94

14.06

28.66

Hand-foot-and-mouth disease

1385

69.25

30.75

15.79

77.24

22.76

39.47

Syphilis

855

93.15

6.85

33.33

92.58

7.42

66.67

Infectious diarrhea

525

71.86

28.14

23.44

70.38

29.62

46.88

Scarlatina fever

410

70.36

29.64

51.61

70.16

29.84

74.19

COVID-19

80

92.00

8.00

20.00

91.25

8.75

80.00

Weighted average by test sample size

87.64

12.36

45.60

91.16

8.84

54.74