Fig. 6.
BPT diagram obtained with the ANNR and SDSS testing sample from the MPA-JHU DR8 catalog. The ANNR is trained with the CALMa set. The color-code indicates the density of points. The solid (ka03), dashed (Ke01) and dotted lines (S07) define the regions for the four main ionization mechanism of galaxies. The percentage for each group is shown in black.
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