A Support Vector Machine Model with Hyperparameters Optimised by Mind Evolutionary Algorithm for Assessing Permeability of Rock

Table 1

The statistical description of the input and output parameters.

Parameters	Categories	Data type	Statistics parameters/value range
			Minimum	Maximum	Mean	Standard deviation
Confining pressure (MPa)	Input parameter	Numeric	3	35	17.90	11.04
Pore pressure (MPa)	Input parameter	Numeric	0.1	1.4	0.71	0.43
Moisture saturation (%)	Input parameter	Numeric	0	73.60	33.65	23.73
Loading/unloading stage	Input parameter	Nominal	Loading stage and unloading stage
Permeability (10^−17)	Output parameter	Numeric	0.01	272.79	64.05	67.43