Table 7 Comparative analysis with previous works.

From: Panoramic tongue imaging and deep convolutional machine learning model for diabetes diagnosis in humans

Classification models

Accuracy

Precision

Sensitivity

Specificity

F1 Score

Error rate

Computational time (min)

PCA- GA-SVM—Zhang et al.17

0.670

0.669

0.769

0.555

0.715

0.329

2.01

Non-invasive approach—Zhang 43

0.763

0.691

0.728

0.607

0.774

0.317

3.46

Greedy Snake Algorithm—Naveed and Geetha 44

0.801

0.760

0.803

0.669

0.792

0.258

3.19

ResNet 34—Wang et al. [27]

0.875

0.890

0.907

0.826

0.898

0.125

3.24

SqueezeNet—Wu et al.29

0.856

0.865

0.899

0.793

0.882

0.143

3.31

AlexNet—Huo et al.18

0.863

0.870

0.905

0.801

0.887

0.137

3.27

Random forest algorithm—Xiang et al.45

0.877

0.881

0.893

0.829

0.890

0.133

3.07

Stacking model—Li et al.46

0.892

0.894

0.912

0.850

0. 917

0.119

3.61

GA_XGBT approach—Li et al.47

0.906

0.911

0.899

0.872

0.934

0.103

3.57

SVM classifiers—Sagayaraj et al.48

0.927

0.932

0.945

0.917

0.955

0.085

3.41

Proposed ResNet50-Deep RBFNN model

0.984

0.989

0.991

0.943

0.990

0.016

3.50