ECG-Lens: Benchmarking ML & DL Models on PTB-XL Dataset
This study addresses the application of automated electrocardiogram (ECG) classification in cardiovascular disease diagnosis by systematically evaluating the performance of various machine learning and deep learning models on real-world clinical data. Leveraging the PTB-XL dataset, the authors utilize raw 12-lead ECG signals augmented with stationary wavelet transform (SWT) and compare multiple models—including decision trees, random forests, logistic regression, a simple CNN, LSTM, and a newly proposed complex CNN architecture named ECG-Lens. Experimental results demonstrate that ECG-Lens achieves an accuracy of 80% and a ROC-AUC of 90% without requiring manual feature extraction, significantly outperforming all other evaluated methods. This work establishes ECG-Lens as a new high-performance benchmark for end-to-end automated ECG classification.