A Hybrid Approach Integrating Multiple ICEEMDANs, WOA, and RVFL Networks for Economic and Financial Time Series Forecasting

Table 9

The directional statistic (D_stat) values of single decomposition and multiple decompositions.

Dataset	Horizon	MICEEMDAN-WOA-RVFL	ICEEMDAN-WOA-RVFL1	ICEEMDAN-WOA-RVFL2	ICEEMDAN-WOA-RVFL3	ICEEMDAN-WOA-RVFL4	ICEEMDAN-WOA-RVFL5	Mean
WTI	1	0.9381	0.9201	0.9161	0.9184	0.9323	0.9271	0.9228
	3	0.8576	0.8414	0.8548	0.8385	0.8553	0.8513	0.8483
	6	0.7737	0.7419	0.7703	0.7668	0.7627	0.7616	0.7607
USD/EUR	1	0.941	0.9008	0.9270	0.9204	0.9073	0.9157	0.9142
	3	0.8502	0.8052	0.8418	0.8399	0.8296	0.8427	0.8318
	6	0.7828	0.6826	0.7809	0.7819	0.7772	0.7706	0.7586
IP	1	0.9256	0.8967	0.8926	0.9132	0.8967	0.9174	0.9033
	3	0.8802	0.8760	0.8430	0.8223	0.8471	0.8802	0.8537
	6	0.8141	0.8017	0.8017	0.7066	0.7851	0.8017	0.7794
SSEC	1	0.9156	0.9052	0.9052	0.9052	0.9087	0.9135	0.9076
	3	0.8396	0.8222	0.8292	0.8208	0.8368	0.8264	0.8271
	6	0.7587	0.7462	0.7441	0.7134	0.7594	0.7448	0.7416