Table 1.
Number of stars and galaxies in the validation catalogues matched in AllWISE × PS1.
| Survey | Criteria | Galaxies | Stars |
|---|---|---|---|
| DEEP2 | z > 0 | 601 | 0 |
| DEIMOS | z is not −1,Q = 2 | 438 | 285 |
| GAMA | z > 0.05 | 97 820 | 0 |
| z < 0.90 | |||
| NQ > 1 | |||
| Survey is not SDSS | |||
| LAMOST (a) | Class is not None | 30 093 | 1 107 982 |
| PRIMUS | zqual > 1 | 10 119 | 789 |
| SDSS (b) | See Sect. 2.4 | 1 474 458 | 310 152 |
| VIPERS | zflg > 2 (c) | 2517 | 312 |
| zCOSMOS | z > 0 | 2188 | 0 |
Notes. In selecting the most reliable data, we used the criteria described in the second column.
Here we used a filtered sample of LAMOST DR4, excluding common sources with SDSS (see Sect. 5.3 for details).
For validation with training SDSS sample, we used estimations received by 5-fold cross-validation technique (see appendix for details).
Meaning the integer part of zflg, see http://vipers.inaf.it/data/pdr2/catalogs/PDR2_SPECTRO_TABLES.html.
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