A clustering approach in DEA involving preferences of DMUs

Aim of the note is placing of DMUs in certain clusters. This work is done by solving of multiple objective production problems and by considering of preferences of each DMU at production of each output or consumption of each input. Recently is proposed a method for clustering of DMUs that is base of CCR envelopment model and clusters them by reference units. This note applies method of axial solutions for solving MOLPs and considers preferences of DMUs. As result, clustering DMUs is done by optimization solutions. Also a numerical example is presented and the approach is compared with two different methods