Key result
The Random Forest algorithm combined with recursive feature elimination with cross-validation achieved a classification accuracy of 99.7% for heart disease prediction, outperforming decision tree, support vector machine, and logistic regression models.
Why the study?
The quality of heart disease features used for training machine learning models significantly impacts the predictive performance, requiring investigation.
May support ML model development for prediction research; leaves open prospective validation before clinical use.
In recent years, machine learning is attaining higher precision and accuracy in clinical heart disease dataset classification. However, literature shows that the quality of heart disease feature used for the training model has a significant impact on the outcome of the predictive model. Thus, this study focuses on exploring the impact of the quality of heart disease features on the performance of the machine learning model on heart disease prediction by employing recursive feature elimination with cross-validation (RFECV). Furthermore, the study explores heart disease features with a significant effect on model output. The dataset for experimentation is obtained from the University of California Irvine (UCI) machine learning dataset. The experiment is implemented using a support vector machine (SVM), logistic regression (LR), decision tree (DT), and random forest (RF) are employed. The performance of the SVM, LR, DT, and RF models. The result appears to prove that the quality of the feature significantly affects the performance of the model. Overall, the experiment proves that RF outperforms as compared to other algorithms. In conclusion, the predictive accuracy of 99.7% is achieved with RF.
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Assegie et al. (2022) studied Heart disease (n=1,025). Random Forest algorithm with recursive feature elimination vs. Decision Tree, Support Vector Machine, and Logistic Regression algorithms was evaluated on Classification accuracy. The Random Forest algorithm combined with recursive feature elimination with cross-validation achieved a classification accuracy of 99.7% for heart disease prediction, outperforming decision tree, support vector machine, and logistic regression models.
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