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This article has an erratum: [https://doi.org/10.2516/ogst/2019053]

Table 3

Parameter values for the GFA model presented in equation (4), determined using each fold as external data (Test set). <> stands for the average of parameter values taken over the nine folds.

Fold-01 Fold-02 Fold-03 Fold-04 Fold-05 Fold-06 Fold-07 Fold-08 Fold-09 <>
λ 0 13.761 14.508 13.312 13.270 13.765 14.007 13.033 12.127 13.371 13.462
λ 1 −0.120 −0.133 −0.124 −0.120 −0.129 −0.132 −0.121 −0.116 −0.122 −0.124
λ 2 0.141 0.140 0.148 0.149 0.146 0.141 0.160 0.175 0.147 0.150
λ 3 0.112 0.056 0.162 0.140 0.129 0.154 0.146 0.180 0.146 0.136

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