Open Access
Table 2
Comparison of different algorithms based on magnitudes, colors, and photometric images for low-quality samples.
| Algorithm | σTeff (K) | σlog g (dex) | σ[Fe/H] (dex) | |||
|---|---|---|---|---|---|---|
| w/o parallax | w/ parallax | w/o parallax | w/ parallax | w/o parallax | w/ parallax | |
| RF_mag&color | 125.200 | 112.129 | 0.346 | 0.091 | 0.203 | 0.181 |
| XGBoost_mag&color | 123.906 | 110.721 | 0.338 | 0.089 | 0.196 | 0.173 |
| LightGBM_mag&color | 122.252 | 110.559 | 0.332 | 0.089 | 0.193 | 0.169 |
| CatBoost_mag&color | 122.400 | 110.071 | 0.333 | 0.088 | 0.192 | 0.168 |
| ACF | 116.816 | 104.269 | 0.297 | 0.082 | 0.170 | 0.153 |
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