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Generalization from Low- to Moderate-resolution Spectra with Neural Networks for Stellar Parameter Estimation: A Case Study with DESI

  • Authors: Xiaosheng Zhao, Yuan-Sen Ting, Rosemary F.G. Wyse, Alexander S. Szalay, Yang Huang, László Dobos, Tamás Budavári, Viska Wei

Xiaosheng Zhao et al 2026 The Astrophysical Journal 1006 .

  • Provider: AAS Journals

Caption: Figure A2.

Effect of fine-tuning sample size on the predicted [α/Fe]–[Fe/H] diagrams, evaluated on all remaining samples not used for fine-tuning. Results are shown for residual-head fine-tuning of [Fe/H] and LoRA fine-tuning of [α/Fe]. Other conventions follow Figure 3.

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