International Gold Price Forecast Based on CEEMDAN and Support Vector Regression with Grey Wolf Algorithm

Table 4

Reconstructed results of the original gold price data.

Subsequences	Sequences/residual	Pearson correlation	Kendall rank correlation	Variance contribution rate (%)
IMFH	IMF1, IMF2, IMF3, IMF4, IMF5, IMF6, IMF7, IMF8, IMF9	0.0933	0.0537	0.9831
IMFL	IMF10, IMF11, IMF12	0.5969	0.2680	14.9269
Res	Residual	0.9210	0.7399	68.1219