Machine learning has been used successfully to improve the accuracy of computer-aided diagnosis systems. This paper experimentally assesses the performance of models derived by machine learning techniques by using relevant features chosen by various feature-selection methods. Four commonly used heart disease datasets have been evaluated using principal component analysis. Chi squared ... https://www.nacrack.com/great-deal-Sudadera-ch-ndal-roja-23-24-nino-quick-deal/