Table 6 Performance of LXGB on the PCLW2 plan with different combination models.

From: LXGB: a machine learning algorithm for estimating the discharge coefficient of pseudo-cosine labyrinth weir

Model

Train

Test

RMSE

RRMSE

NSE

RMSE

RRMSE

NSE

K1

0.028

0.029

0.963

0.033

0.034

0.935

K2

0.016

0.018

0.973

0.019

0.020

0.948

K3

0.047

0.049

0.948

0.049

0.051

0.922

K4

0.083

0.085

0.830

0.087

0.089

0.810

K5

0.093

0.095

0.801

0.010

0.112

0.766

K6

0.009

0.012

0.991

0.015

0.012

0.970

K7

0.038

0.040

0.952

0.047

0.047

0.925

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