Measuring Efficiency Using Fuzzy DEA and Fuzzy Constraints to Control Weights and to Find a Common Set of Weights

Document Type : Research Paper


1 Assistant Prof. Industrial Management, Tehran University, Iran

2 Lecturer, Industrial Management, Hormozgan University, Ir


In this paper it has been tried to present a model by using
some changes in the classical DEA models and combining these models
with fuzzy models to eliminate these weaknesses. Inputs and outputs are
recognized by using MCDM and AHP techniques and experts views. In
the next step, the gathered data is compounded by fuzzy techniques and
entered in the special DEA model after changing to the crisp amounts.
Solving DEA model and attaining common set of weights will help
illustrate the efficient and inefficient units. As an illustrative case study,
the present research applies the proposed approach to evaluate the
efficiencies of 18 regional management units of Fars Power Distribution
Company in the year 1384 (2005). Finally, some areas are also suggested
for further research to be undertaken in future.