Evaluation of Decision-Making Units with Interval Grey Data in DEA

Department of Applied Mathematics, Azarbaijan Shahaid Madani University,Tabriz, Iran.

Department of Applied Mathematics, Azarbaijan Shahaid Madani University,Tabriz, Iran.

Department of Mathematics, Payame Noor University, Tehran, Iran

Department of Computer Science, Faculty of Mathematics Sciences and Computer, Kharazmi University, Karaj, Iran