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Table 2

Optimal configurations of the single-band classifiers, yielding best results on the validation sets.

Observational setup n PCA n hn n l n c F 1,va F 1,tt S va S tt

Euclid 24 26 2 48 0.75 0.42 0.98 0.90
HST F606W 27 29 3 24 0.57 0.30 0.94 0.68

Notes. The hyper-parameter nPCA is the number of retained PCA components, nhn is the number nodes in the hidden layers of the ANN, nl is the number of hidden layers, and nc is the number of ANNs retained in the committee (out of the 96 trained). The F1 score and the success rate S are given for the validation (va) and test (tt) sets. If the output catalogues were randomly drawn, the metrics would be F1 ≈ 0.07 and S ≈ 0.21.

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