Examples of J-PAS galaxies in the AEGIS field with SDSS spectrum. The SDSS spectrum is re-scaled to match the rSDSS J-PAS magnitude. Diamonds correspond to the filters not used by the ANN. Blue and black numbers show, respectively, the predictions made by the ANN_R on the EWs and the values measured in the SDSS spectrum. On the top-left part of the plot, we indicate the J-PAS ID of the object, its redshift and the prediction of the ANN_C for EW_min = 3 Å. At the bottom, we show the difference in magnitude between the synthetic fluxes obtained from SDSS spectra and J-PAS data. Dashed lines mark from left to right the position of [O II], Hβ, [O III], and Hα emission lines.