ECG-Based Subject Identification Using Statistical Features and Random Forest

Table 2

Band-based approach classification results using 290 subjects of the PTB dataset with segment lengths of 1, 3, 5, 7, 10, and 15 sec.

Lead	1 second			3 seconds			5 seconds			7 seconds			10 seconds			15 seconds
	Avg. Acc.	Avg. Sen.	Avg. Spe.	Avg. Acc.	Avg. Sen.	Avg. Spe.	Avg. Acc.	Avg. Sen.	Avg. Spe.	Avg. Acc.	Avg. Sen.	Avg. Spe.	Avg. Acc.	Avg. Sen.	Avg. Spe.	Avg. Acc.	Avg. Sen.	Avg. Spe.
I	98.15	97.84	99.99	99.17	98.76	100	99.34	98.92	100	99.61	99.66	100	98.97	98.39	100	98.42	97.59	99.99
II	97.79	97.47	99.99	99.04	98.76	100	99.17	98.77	100	99.06	98.34	100	98.97	98.1	100	97.89	96.95	99.99
III	97.44	96.98	99.99	99.17	98.77	100	99.17	98.9	100	99.21	98.76	100	98.75	97.73	100	98.07	97.13	99.99
aVR	98.02	97.57	99.99	99.53	99.48	100	99.5	99.19	100	99.37	98.9	100	99.77	99.54	100	98.42	97.53	99.99
aVL	97.46	97.18	99.99	98.9	98.75	100	99.06	98.68	100	98.82	98.41	100	98.86	98.62	100	97.72	96.67	99.99
aVF	97.58	97.11	99.99	99.17	98.87	100	99.12	98.6	100	99.37	99.17	100	98.63	97.84	100	98.07	96.72	99.99
V1	98.38	98.09	99.99	99.53	99.36	100	99.45	98.77	100	99.76	99.52	100	99.54	99.37	100	98.6	97.87	100
V2	98.4	98.19	99.99	99.24	99.21	100	99.61	99.53	100	99.21	99.03	100	98.86	98.79	100	98.25	97.18	99.99
V3	98.89	98.77	100	99.37	99.27	100	99.61	99.17	100	99.45	98.69	100	98.63	97.87	100	98.25	97.18	99.99
V4	98.75	98.65	100	99.5	99.38	100	99.61	99.53	100	99.53	99.03	100	99.09	98.71	100	98.6	97.87	100
V5	98.41	98.32	99.99	99.5	99.43	100	99.28	98.99	100	99.61	99.1	100	98.86	98.28	100	98.25	97.36	99.99
V6	98.35	98.21	99.99	99.47	99.26	100	99.34	98.79	100	99.61	99.38	100	99.09	97.96	100	98.6	97.41	100
Vx	98.84	98.75	100	99.63	99.56	100	99.5	99.43	100	99.76	99.79	100	98.97	98.07	100	98.95	98.62	100
Vy	98.23	97.85	99.99	99.34	99.11	100	99.56	99.36	100	99.53	99.03	100	99.32	98.94	100	98.25	96.55	99.99
Vz	98.56	98.36	100	99.63	99.45	100	99.56	99.48	100	99.69	99.45	100	99.54	99.08	100	98.95	98.33	100