Table 3.

Training Set and Validation Set of the Epidemic Trends in the Major Epidemic Areas

Countries	South Korea				Italy				Iran
	Actual	Forecast			Actual	Forecast			Actual	Forecast
Date		S1	S2	S3		S1	S2	S3		S1	S2	S3
2020/3/5	5766	5766	5766	5766	3089	3089	3089	3089	2922	2922	2922	2922
2020/3/6	6284	6199	6221	6239	3858	3794	3844	3852	3513	3613	3678	3687
2020/3/7	6767	6612	6683	6741	4636	4609	4795	4830	4747	4396	4630	4672
2020/3/8	7134	6990	7142	7268	5883	5515	5965	6064	5823	5250	5806	5921
2020/3/9	7382	7323	7589	7811	7375	6485	7374	7598	6566	6147	7224	7480

S1: optimistic scenario; S2: cautiously optimistic scenario; S3: relatively pessimistic scenario; Inc.: increment