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Tabular Foundation Models for the Estimation of Probabilistic Quasar Photometric Redshifts in S-PLUS

  • Authors: Raquel R. Valença, Lilianne Nakazono, Rafael Izbicki, Marco Henrique de Almeida Inácio, Bruno Marcondes e Resende, Maycon Jorge Deláqua da Silva, Kiana Coimbra Buin Lins, Natanael M. Cardoso, Claudia Mendes de Oliveira

Raquel R. Valença et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 6.

Performance versus training-set size under importance-weighted evaluation with the tuned recalibration exponent (α ≃ 0.36, ESS target 30%). Conventions match Figure 5. Under shift-corrected evaluation, foundation models lead both metrics across the full range of ntrain.

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