A Hybrid Model through the Fusion of Type-2 Fuzzy Logic Systems and Sensitivity-Based Linear Learning Method for Modeling PVT Properties of Crude Oil Systems

Table 2

Testing results for 283-dataset when predicting 𝐵_ob and 𝑃_𝑏. 𝑅²: correlation coefficient, SD: standard deviation, 𝐸_𝑎: average absolute percent relative error (AAPRE), 𝑃_𝑏: bubble-point pressure, 𝐵_ob: oil formation volume factor.

Prediction methods	𝐵ob			𝑃𝑏
	𝑅^2	SD	𝐸𝑎	𝑅^2	SD	𝐸𝑎
Type-2 fuzzy model	0.9948	0.2662	1.069	0.9978	0.8873	1.034721
SBLLM	0.9959	0.0372	0.852	0.9597	0.1427	30.205
T2-SBLLM hybrid	0.9978	0.00815	0.510	0.9968	0.0943	2.1034