2D correlation 1 Algorithms 1 Article 1 Atrial Fibrillation 1 Atrial fibrillation 1 Atrial fibrillation (AF) 1 Biomedical signal processing 1 Cardiac monitoring 1 Classification methods 1 Cross validation 1 Databases, Factual 1 Different time windows Diseases 1 Electrocardiography 1 Heart Rate 1 Humans 1 Monitoring, Physiologic 1 Normal sinus rhythm 1 Normalized mutual information 1 Open source database 1 RR interval 1 algorithm 1 atrial bigeminy 1 atrial bigeminy (AB) 1 atrial fibrillation 1 controlled study 1 cross validation 1 diagnostic accuracy 1 diagnostic test accuracy study 1 electrocardiography 1