Table 2.

Quantitative measures of performance for different forecasting models on the testing data (Experiment-1) 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	114436.4	97628.29	110496.5	97560.62	121771.3	108767.7	96983.67	97410.53
India	MAE	103884	94889.18	100468.6	95074.81	111168.23	98275.48	94414.72	94860.79
US	RMSE	354887.93	235589.97	330537.01	203448.8	324292.93	307000.06	194434.38	160769.1
US	MAE	322286.3	137865.9	291098.1	150755.72	289144.28	276120.35	159307.17	144636.46