In multi-criteria group decision-making (MCGDM), one of the most important problems is to determine the weights of criteria and experts.  ...  From the numerical results, it is clear that the developed Min-Max models more effectively solve the MCGDM problems including the ones with incomplete score matrices, compared with the methods available  ...  The authors would like to express their thanks to the anonymous referees for their constructive comments on this paper, which have greatly improved its presentation.  ...