Construct and Validate a Predictive Model for Surgical Site Infection after Posterior Lumbar Interbody Fusion Based on Machine Learning Algorithm

Figure 4

Confusion matrix of prediction model for validation set. SSI: surgical site infection; no SSI: no surgical site infection; (a) Boosted Classification Trees; (b) SMOTE+Boosted Classification Trees; (c) Boosted Logistic Regression; (d) SMOTE+Boosted Logistic Regression; (e) Extreme Gradient Boosting; (f) SMOTE+Extreme Gradient Boosting; (g) Stochastic Gradient Boosting; (h) SMOTE+Stochastic Gradient Boosting; (i) Generalized Linear Model, (j) SMOTE+Generalized Linear Model; (k) AdaBoost Classification Trees; (l) SMOTE+AdaBoost Classification Trees; (m) random forest; (n) SMOTE+Random Forest.

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