Effects of principle component analysis on assessment of coronary artery diseases using support vector machine

Authors:
Ismail Babaoğlu;Oğuz Fındık;Mehmet Bayrak
Affiliations:
Department of Computer Engineering, Selcuk University, Konya,Turkey;Department of Computer Engineering, Selcuk University, Konya,Turkey;Department of Electrical-Electronics Engineering, Selcuk University, Konya, Turkey
Venue:
Expert Systems with Applications: An International Journal
Year:
2010

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Abstract

Artificial intelligence techniques are being effectively used in medical diagnostic support tools to increase the diagnostic accuracy and to provide additional knowledge to medical stuff. Effects of principle component analysis on the assessment of exercise stress test with support vector machine in determination of coronary artery disease are studied in this work. Study dataset consist of 480 patients with 23 features for each patient. By reducing study dataset with principle component analysis method, optimum support vector machine model is found for each reduced dimension. According to the obtained results, optimum support vector machine model in which the dataset is reduced to 18 features with principle component analysis is more accurate than optimum support vector machine model which uses the whole 23 featured dataset. Besides, principle component analysis implementation decreases the training error and the sum of the training and test times.