Power Grid Estimation Using Electric Network Frequency Signals

Table 7

The accuracy according to the number of harmonic bands extracted from multimedia files with XGBoost (trained 70%, averaged over 20 rounds).

Time (hour)	Accuracy by the number of harmonic bands (%)								Average
	1	2	3	4	5	6	7	8
0.25	—	99.07	98.91	99.25	49.25	59.86	61.84	88.21	85
0.5	—	99.74	99.95	100	73.85	85.63	87.79	95.22	94.17
1	—	99.88	—	—	100	100	99.68	99.97	99.92