The Calculation of Unit's Efficiency by Using the Interval

Subject Areas : International Journal of Data Envelopment Analysis

B. Babazadeh ¹ , E. Najafi ² , M. AhadzadehNamin ³ , Y. jafari ⁴ , Z. Ebrahimi ⁵

1 - Department of Industrial Engineering, Science and Research Branch, Islamic Azad University, Saveh, Iran
2 - Department of Industrial Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
3 - Department of mathematics, Shahr-e-QodsBranch, Islamic Azad University, Tehran, Iran
4 - Department of Mathematics, Shabestar Branch, Islamic Azad University, Shabestar, Iran
5 - Department of Industrial Engineering, Science and Research Branch, Islamic Azad University, Saveh, Iran

Received: 2013-08-05 Accepted : 2014-01-24 Published : 2014-03-30

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