In this paper, different classifiers are studied and the experiments are conducted to find the best classifier for predicting the patient
of heart disease.we propose an approach to predict the heart diseases using data mining techniques. Three classifiers such as ID3,
CART and DT were used for diagnosis of patients with heart diseases. Observation shows that CART performance is having
more accuracy, when compared with other two classification methods.
The best algorithm based on the patient’s data is CART Classification with accuracy of 83.49% and the total time taken to build
the model is at 0.23 seconds. CART classifier has the lowest average error at 0.3 compared to others. These results suggest that
among the machine learning algorithm tested, CART classifier has the potential to significantly improve the conventional
classification methods used in the study.
We also shows that the most important attributes for heart diseases are cp (Chest pain), slope (The slope of the peak exercise
segment), Exang (Exercise induced angina), and Restecg (Resting electrocardiographic). These attributes were found using three
tests for the assessment of input variables: Chi-square test, Info Gain test and Gain Ratio test.
The empirical results show that we can produce short but accurate prediction list for the heart patients by applying the predictive
models to the records of incoming new patients. This study will also work to identify those patients who needed special attention.