| Methods | Abbreviation | Search space | Note |
| K-nearest neighbor | KNN | | , | | | Random forest | RF | , | | | | Decision tree | DT | , | , | | | Extra tree | ET | , | , | | | Support vector machine | SVM | , | | | | Gradient boosting | GB | , | , | MSS  [2, 3, 4, 5, 6, 7] | | Multilayer perceptron | MLP | , | | WD  [0.1, 0.2, 0.3, 0.4] | | Adaptive boost | ADB | , | , | | \end | Light gradient boosting machine | LGBM | , | , | | \end | Blood usage prediction neural network | BUPNN (ours) | | , | | \end |
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