Upper six panels: PF-DNN application to HD 170580, based on six frequencies (f₁, f₂, f₁₉, f₂₃, f₂₄, and f₂₆) of identified modes and five (f₁₀, f₁₄, f₁₆, f₂₇, and f₃₂) of unidentified modes. Lower six panels: similar, but where the PF-DNN was retrained such as to comply with the Gaia DR2 parallax and the spectroscopic T_eff, both at 2σ-level. The blue and grey points represent the results for two different settings for the genetic algorithm and sampling of the PF-DNN, according to Hendriks & Aerts (2019).