Fig. 2

Simultaneous optimization of entry-to-nearest-entry (E-NE) and accession-to-nearest-entry (A-NE) distance. These Pareto front approximations for Core Hunter 3 were obtained by sampling cores with varying weights α₁∈[ 0,1] and α₂=1−α₁ assigned to the E-NE and A-NE measures, respectively, with a step size of 0.05. The quality of the cores constructed by CH3 is compared with those obtained by GDOpt and SimEli, in terms of both objective functions. All reported values are averages of 10 independently sampled cores with the same settings