Q4 Conference Proceedin 2020-05-28 The impact of Negative to Positive Training Dataset Ratio on Atrial Fibrillation Classification Machine Learning Algorithms Performance AHMAD ZARKASI Journal of Physics Conference Series ISSN 17426588 DOI 10.1088/1742-6596/1500/1/012131 Metrik jurnal & altmetrik 0sitasi Scopus