Photometric colors from SAGES DR1 and Gaia are mapped by random forests to Teff, log g, and [Fe/H] for about 21 million stars, with claimed precisions near 0.1 dex and 70 to 100 K.
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The Stellar Abundances and Galactic Evolution Survey (SAGES). II. Machine Learning-Based Stellar parameters for 21 million stars from the First Data Release
Photometric colors from SAGES DR1 and Gaia are mapped by random forests to Teff, log g, and [Fe/H] for about 21 million stars, with claimed precisions near 0.1 dex and 70 to 100 K.