Research Article
A New Approach for Reconstruction of IMFs of Decomposition and Ensemble Model for Forecasting Crude Oil Prices
Table 9
Autocorrelation of Brent and WTI daily and weekly data.
| | IMFs | Daily | Weekly | | Brent | WTI | Brent | WTI |
| | IMF.1 | −0.467 | −0.484 | −0.479 | −0.448 | | IMF.2 | 0.473 | 0.488 | 0.578 | 0.592 | | IMF.3 | 0.836 | 0.850 | 0.889 | 0.892 | | IMF.4 | 0.953 | 0.954 | 0.983 | 0.987 | | IMF.5 | 0.987 | 0.988 | 0.995 | 0.997 | | IMF.6 | 0.997 | 0.998 | 0.999 | 0.999 | | IMF.7 | 0.999 | 0.999 | 0.999 | 0.999 | | IMF.8 | 0.999 | 1.000 | 1.000 | 1.000 | | IMF.9 | 1.000 | 1.000 | 1.000 | 1.000 | | IMF.10 | 1.000 | 1.000 | 1.000 | 1.000 | | IMF.11 | 1.000 | 1.000 | 1.000 | — | | IMF.12 | 1.000 | 1.000 | — | — | | IMF.13 | 1.000 | 1.000 | — | — |
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