Geometric score of the extragalactic classes for different parametric combinations of DSC Specmod and Allosmod. (a) Results of all combinations using the global prior. (b) As (a) but using the variable prior. The parameters α=[α_quasar, α_galaxy, α_star] are computed on a coarse grid. The geometric score of the extragalactic classes is computed at each combination. The evolving sequence can be followed from top to bottom, left to right, where α_quasar and α_galaxy are set to vary between 0 and 1 while α_star is fixed between 0 and 0.5. Each panel reports the geometric score evaluated at each α_star as a function of the other two parameters. The colour scheme of the mapping is defined such that bright colours refer to higher geometric score values and dark colours to lower values.