An Improved Hybrid Model for Cardiovascular Disease Detection Using
Machine Learning in IoT
Abstract
Cardiovascular disease (CVD) believes to be a major cause of transience
and indisposition worldwide. Early diagnosis and timely intervention are
critical in preventing the progression of CVD and improving patient
outcomes. Machine learning (ML) algorithms have emerged as powerful
tools in CVD recognition, with the potential to assist physicians in
making accurate and efficient diagnoses. This research paper explores
the combination of multiple ML algorithms for CVD recognition, utilizing
diverse datasets such as the Cleveland, Hungarian, Switzerland, statlog,
and VA Long Beach datasets. Additionally, a CVD dataset comprising 12
attributes and 70,000 records is employed, demonstrating improved
results through the proposed and trained model compared to previous
prediction techniques for CVD. The performance of various ML techniques,
including support vector machines (SVM), Naive Bayes (NB), K-Nearest
Neighbor (KNN), Random Forest (RF), and Logistic Regression (LR), is
evaluated and compared. The impact of feature selection and feature
scaling on the models’ performance is also examined. An ensemble bagging
techniques is applied which is being embedded with other classifiers. LR
classifier embedded with bagging techniques proved to be our proposed
model. The findings reveal that the proposed Hybrid Linear Regression
Bagging Model (HLRBM) outperforms other models. Furthermore, the study
highlights the significance of data preprocessing techniques, such as
data normalization and class balancing, which significantly enhance the
performance of all models. To this end, standard scalar and Synthetic
Minority Over-sampling Technique (SMOTE) are employed. The study
emphasizes the importance of selecting an appropriate ensemble technique
in conjunction with various ML algorithms and preprocessing methods for
CVD prediction. Overall, the research provides valuable insights into
the potential of ML in improving CVD risk assessment.