Top panel: WISE color-color diagram for prediction set. The horizontal line presents the simple W1 − W2 criterion to select AGNs, while the gray density plots show the sources satisfying the criterion combining W1 − W2 color and W2mag (see the text for details). Bottom panel: Radio/MIR flux diagram for prediction set. The solid line shows the one-to-one correlation. The dashed line presents a division line to identify radio/MIR excess. For both panels, the orange contours represent AGNs. The levels of the contours are [10, 50, 100, 500, and 1000]. The blue contours represent non-AGNs. The levels of the contours are [10, 50, 100, 500, 1000, and 3000].