Table 3.

Quantitative measures of performance for different forecasting models on the training data (Experiment-2) for Covid 19 confirm cases

Data	Performance	ARIMA	NNAR	${\mathrm{Hybrid}}_1$	${\mathrm{Hybrid}}_2$	${\mathrm{Hybrid}}_3$	${\mathrm{Hybrid}}_4$	${\mathrm{Hybrid}}_5$	${\mathrm{Hybrid}}_6$
India	RMSE	6557.79	2647.36	935.02	2647.36	7684.53	1777.04	897.26	2959.08
India	MAE	3870.92	1559.8	636.68	1559.8	4610.08	1119.52	620.16	1795.06
US	RMSE	61897.78	44412.9	5170.12	34438.9	46039.06	13042.29	16781.65	35439.48
US	MAE	25961.78	16503.91	3184.22	15175.91	20257.33	7709.54	8712.99	16704.81