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Types of heartbeats we used in the MIT‐BIH Arrhythmia dataset and overview of its beat annotations.
| Heartbeats | Classes | Beat description | Frequency (%) | Count |
|---|---|---|---|---|
| Normal | N | Normal beat | 75.0 | 75,011 |
| L | Left bundle branch block beat | 8.07 | 8071 | |
| R | Right bundle branch block beat | 7.25 | 7255 | |
| Supraventricular | A | Atrial premature beat | 7.13 | 7129 |
| Ventricular | V | Premature ventricular contraction | 2.55 | 2546 |
