OICC Press Fuzzy Optimization and Modeling Journal (FOMJ) 2676-7007 1 2 2020 10 01 The Application of Data Envelopment Analysis in Fuzzy Queuing Models 8 15 EN Najmeh Malekmohammadi Islamic Azad University, South Tehran Branch Journal Article 2020 10 01 In this paper, an approach is presented for the evaluation of efficiency in fuzzy queuing models with publicity and renouncement. In the existing method proposed for the functions of fuzzy profit of queuing models, in the last stage the function of standardized profit and the level of expense can be evaluated among different α-level set. According to the new approach we determine which α-level set can be chosen for the system as efficient and ideal. In this step an interval data envelopment analysis model is suggested to get the overall efficiency of the proposed method for the functions of fuzzy profit of queuing models. Numerical illustration is provided to show the application of interval DEA models to the fuzzy queuing systems.