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Fig. 15.

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2D histograms showing CNN uncertainties (internal precision) as a function of four labels (Teff, log(g), [Fe/H], A(Li)) and S/N for the observed sample with S/N > 10 pix−1, i.e., 31 272 spectra. The red dashed line shows the limits of the training labels. The x-axis represents the labels and the y-axis shows the uncertainty (σ).

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