Table 6 Comparison of the MAPE (%) of... | Emerald Publishing

Table 6

Comparison of the MAPE (%) of various grey models under different noise levels

	Low(⁠ $α =$ 0.005)		Medium(⁠ $α =$ 0.01)		High(⁠ $α =$ 0.05)
Model	Training set	Test set	Training set	Test set	Training set	Test set
NGBM	4.0672	9.4358	4.0800	9.4331	4.1842	9.4334
FANGBM	5.5528	3.0567	5.5677	3.0490	5.7180	3.1622
Unbiased NGBM	4.1156	8.1849	4.1286	8.1821	4.2342	8.1788
SANDGMO	1.7369	0.1203	1.7436	0.1198	1.8414	0.2281

	Low( $α =$ 0.005)		Medium( $α =$ 0.01)		High( $α =$ 0.05)
Model	Training set	Test set	Training set	Test set	Training set	Test set
NGBM	4.0672	9.4358	4.0800	9.4331	4.1842	9.4334
FANGBM	5.5528	3.0567	5.5677	3.0490	5.7180	3.1622
Unbiased NGBM	4.1156	8.1849	4.1286	8.1821	4.2342	8.1788
SANDGMO	1.7369	0.1203	1.7436	0.1198	1.8414	0.2281

Source(s): Authors' own creation