Table 2 Quantitative results among ensemble classification with automatic assignment of base classifiers and the ensemble classifier with single base classifiers

Automatic assignment

400

Classified as

Non-T4SE

T4SE

Non-T4SE

0.943

0.938

0.940

Label non-T4SE

726

48

T4SE

0.765

0.780

0.772

Label T4SE

44

156

Weighted average

0.906

0.906

0.906

Automatic assignment

25

Classified as

Non-T4SE

T4SE

Non-T4SE

0.944

0.933

0.938

Label non-T4SE

722

52

T4SE

0.751

0.785

0.768

Label T4SE

43

157

Weighted average

0.904

0.903

0.903

DTC

25

Classified as

Non-T4SE

T4SE

Non-T4SE

0.925

0.950

0.937

Label non-T4SE

735

39

T4SE

0.782

0.700

0.739

Label T4SE

60

140

Weighted average

0.896

0.899

0.896

GBM

25

Classified as

Non-T4SE

T4SE

Non-T4SE

0.926

0.953

0.939

Label non-T4SE

738

36

T4SE

0.797

0.705

0.748

Label T4SE

59

141

Weighted average

0.900

0.902

0.900

kNN

25

Classified as

Non-T4SE

T4SE

Non-T4SE

0.931

0.919

0.925

Label non-T4SE

711

63

T4SE

0.700

0.735

0.717

Label T4SE

53

147

Weighted average

0.884

0.881

0.882

LDA

25

Classified as

Non-T4SE

T4SE

Non-T4SE

0.927

0.925

0.926

Label non-T4SE

716

58

T4SE

0.713

0.720

0.716

Label T4SE

56

144

Weighted average

0.883

0.883

0.883

LR

25

Classified as

Non-T4SE

T4SE

Non-T4SE

0.883

0.957

0.919

Label non-T4SE

741

33

T4SE

0.756

0.510

0.609

Label T4SE

98

102

Weighted average

0.857

0.865

0.855

MLP

25

Classified as

Non-T4SE

T4SE

Non-T4SE

0.930

0.946

0.938

Label non-T4SE

732

42

T4SE

0.775

0.725

0.749

Label T4SE

55

145

Weighted average

0.898

0.901

0.899

NB

25

Classified as

Non-T4SE

T4SE

Non-T4SE

0.942

0.875

0.907

Label non-T4SE

677

97

T4SE

0.620

0.790

0.695

Label T4SE

42

158

Weighted average

0.876

0.858

0.863

SVM

25

Classified as

Non-T4SE

T4SE

Non-T4SE

0.925

0.924

0.924

Label non-T4SE

715

59

T4SE

0.706

0.710

0.708

Label T4SE

58

142

Weighted average

0.880

0.880

0.880