Comparing the Performance of Data Mining Algorithms in Predicting Coronary Artery Diseases

Cardiovascular diseases are the first leading cause of death worldwide. World health organization has estimated that the morality rate due to heart diseases will mount to 23 million cases by 2030. Hence, the use of data mining algorithms will be useful in predicting coronary artery disease. The objective of the present study was to compare the accuracy of the CAD predictions made by ANN and SVM techniques.

The present study was conducted via descriptive-analytical method. The research sample included all CAD patients hospitalized in three hospitals affiliated to AJA University of Medical Sciences from March 2016 to March 2017. Totally, 1324 records with 26 characteristics affecting the disease were extracted and after normalizing, and cleaning of the data, they were entered in SPSS statistics V23.0 & IBM Excel 2013; then, R3.3.2 data mining software was used to format data.

SVM model with lower MAPE (112.03) and higher Hosmer-lemeshow statistic (16.71), sensitivity (92.23) and specificity (74.42) yielded better fitness of data and provides more accurate prediction than ANN model. On the other hand, since the area under the ROC curve in SVM algorithm was more than that in ANN, it could be concluded that this model had higher accuracy.

According to the results, SVM algorithm presented higher accuracy and better performance than ANN model and showed higher sensitivity and accuracy. It is suggested that in future studies, the results of the present study be compared with the findings resulted from applying other data mining algorithms