Open Access

Table 1

Hyperparameters considered during the tuning phase.

Hyperparameters Values
n, number of hidden layer units 256, 512, 1024, 2048, 4096
r, learning rate 0.001, 0.01, 0.1
f, regularisation factor 10−4, 10−5, 106

Notes. For each hyperparameter (first column) we explore various values (second column). The optimal values are marked in bold.

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