Fig. 5: Sixty empirical datasets show different levels of reducibility.

We show the cost function against the largest order considered in a sfhh-conference, b dawn, and c congress bills. d Reducibility χ for all 60 datasets colored by category and e its overall distribution. The number of datasets in each category is reported in parenthesis. Box plots show median (center line), interquartile range (box), and the non-outlier range (whiskers). All reducibility values are reported in Table 1.