Table 9 The accuracy of soil EC prediction models.

From: A 40-year dataset of soil salinity dynamics (1985–2024) at 100 m resolution in the Western Songnen Plain, China

Algorithm

R2

RMSE

MSE

MAE

NNF

0.467

0.729

0.532

0.556

GPR

0.120

0.834

0.696

0.578

LSBoost

0.070

0.854

0.729

0.589

KPLS

0.070

0.855

0.730

0.610

Tree

0.060

0.861

0.741

0.611

SVM

0.030

0.876

0.767

0.545

LR

0.020

0.878

0.770

0.635

SVM Kernel

−0.040

0.904

0.818

0.559

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