Table 3 Statistical parameters of the proposed models for determination of viscosity of gas condensate.

Model		APRE, %	AAPRE, %	RMSE	SD, %	R²
Ensemble methods	Train	−0.712	4.58	0.043951	0.031448	0.9805
	Test	−0.068	5.86	0.047429	0.034041	0.9695
	Total	−0.55	4.83	0.044646	0.031966	0.9788
SVR	Train	0.45	4.56	0.053017	0.024128	0.9719
	Test	0.40	6.49	0.047857	0.044276	0.9692
	Total	0.44	4.95	0.051985	0.0281576	0.9715
K-NN	Train	−1.93	5.24	0.044429	0.089516	0.9800
	Test	−0.23	6.31	0.053367	0.060065	0.9612
	Total	−1.59	5.45	0.046217	0.083579	0.9771
MLP-LM	Train	−2.96	8.11	0.032649	0.026572	0.9883
	Test	−1.80	7.10	0.055282	0.017382	0.971
	Total	−2.71	7.89	0.038174	0.024672	0.9844
MLP-BR	Train	−2.34	6.42	0.020271	0.021717	0.9956
	Test	−0.03	7.35	0.055470	0.038123	0.9679
	Total	−1.92	6.56	0.030417	0.024720	0.9899
RBF	Train	−4.262	10.59	0.032402	0.054177	0.989
	Test	−3.240	12.11	0.069143	0.051809	0.9449
	Total	−4.060	10.90	0.042395	0.053665	0.9808

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