Comparison between stellar masses obtained through standard template fitting (M_LePh) and the new method presented in this work (M_SOM). The figure shows the density map of 208 404 galaxies in the SXDF field with the magnitude cut at K_s <  24.2. Upper panel: a solid line marks the 1:1 relationship. Bottom panel: the logarithmic ratio log(M_SOM/M_LePh) is shown as a function of log(M_LePh/M_⊙), the solid line marks the zero offset while the two dotted lines are set at ±0.3 dex.