Assessment for Thermal Conductivity of Frozen Soil Based on Nonlinear Regression and Support Vector Regression Methods

Table 5

Fitting results of coarse and fine-grained soil categories.

Soil type	Ternary fitting					SVR
	a	b	c	d	R^2	R^2
Fine-grained soil	−0.770	1.355	0.253	−0.102	0.80	0.85
Coarse-grained soil	−0.788	1.190	0.293	0.225	0.89	0.91