Boost recall in quasi-stellar object selection from highly imbalanced photometric datasets - The reverse selection method

Open Access

Fig. 1

Known QSO with δ < 0 and i mag < 19.5 from the considered catalogs in literature (black symbols, see Sect. 4), from the QUBRICS survey (red circles), and identified by the reverse selection method in this work (blue squares, see Sect. 7).

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