A Hybrid Method for Short-Term Host Utilization Prediction in Cloud Computing

Table 4

Positive and negative error analysis.

Host ID	Prediction length	ARIMA		EEMD-ARIMA		EEMD-RT-ARIMA
		Positive error (%)	Negative error (%)	Positive error (%)	Negative error (%)	Positive error (%)	Negative error (%)
839	6-point	Null	9.77	3.16	5.85	4.92	4.15
	12-point	Null	13.78	3.43	10.71	4.80	4.74
22	6-point	Null	10.66	3.91	6.70	4.12	6.34
	12-point	Null	9.72	4.26	6.09	5.39	5.05
237	6-point	0.39	26.68	14.31	4.62	13.81	11.37
	12-point	0.39	27.51	17.44	8.00	17.90	8.92