Prediction of Air Quality Based on Hybrid Grey Double Exponential Smoothing Model

Table 5

The forecasting results of AQI concentration.

Date	Actual value	CFES	AAES	Hybrid model
Parameter	—
1-Dec	63	63	63	63
2-Dec	44	45.53	44.60	44.97
3-Dec	56	70.75	53.66	60.40
4-Dec	58	74.14	58.00	64.36
5-Dec	54	64.60	55.69	59.21
6-Dec	58	61.53	58.33	59.59
7-Dec	57	57.05	58.11	57.69
8-Dec	67	64.71	67.02	66.11
9-Dec	100	100.00	100.00	100.00
10-Dec	108	115.69	116.97	116.46
MAPE	—	9.40%	1.95%	4.38%
11-Dec	111	97.46	126.93	115.31
12-Dec	112	102.35	138.16	124.04
13-Dec	118	107.05	149.16	132.56
MAPE	—	10.03%	21.37%	8.99%