The Calculation of Unit's Efficiency by Using the Interval

Authors

  • B. Babazadeh Department of Industrial Engineering, Science and Research Branch, Islamic Azad University, Saveh, Iran
  • E. Najafi Department of Industrial Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
  • M. AhadzadehNamin Department of mathematics, Shahr-e-QodsBranch, Islamic Azad University, Tehran, Iran
  • Y. jafari Department of Mathematics, Shabestar Branch, Islamic Azad University, Shabestar, Iran
  • Z. Ebrahimi Department of Industrial Engineering, Science and Research Branch, Islamic Azad University, Saveh, Iran
Abstract:

Data Envelopment Analysis )DEA( is a technique for measuring the efficiency of decision making units. In all models of the DEA, for each unit under assessment, the numerical efficiency which may be less than or equal to one is obtained. Given the possible large number of efficiency units for evaluating units, we use various methods of ranking. span style="font-family: Cambria Math;font-size:8pt;color:rgb(0,0,0);font-style:normal;font-variant:normal L1 norm is one of the methods of ranking. This method has been used for categorical data. In this paper, we assume data as interval and introducespan style="font-family: Cambria Math;font-size:8pt;color:rgb(0,0,0);font-style:normal;font-variant:normal L1 norm andrun it on a single example.

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Journal title

volume 2  issue 1

pages  333- 341

publication date 2014-03-30

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