Before revision:  In these papers, the authors focus on minimizing regular performance measures, i.e., functions that are non decreasing in the jobs completion time, subject to the constraint that the total rejection cost cannot exceed a predefined upper bound.
After revision:  In these papers, the authors focus on minimizing regular performance measures, i.e., functions that are non-decreasing in the jobs completion time, subject to the constraint that the total rejection cost cannot exceed a predefined upper bound.