Data Envelopment Analysis, DEA
1. Determine the Efficiency of Time Depended Units by Using Data Envelopment Analysis

Z. Taeb; F. Hosseinzadeh Lotfi; S. Abbasbandy

Volume 6, Issue 3 , Autumn 2017, , Pages 193-201

http://dx.doi.org/10.22105/riej.2017.49156

Abstract
  In the last years, several techniques have been reported for managing a system and recognition of the related decision making units. One of them is based on mathematical modeling. Efficiency of any system is very important for all decision makings. Often applied data have time dependent inputs/ outputs. ...  Read More

Data Envelopment Analysis, DEA
2. The Methods of Ranking based Super Efficiency

M. Nayebi; F Hosseinzadeh Lotfi

Volume 5, 1(4) , Autumn 2016, , Pages 43-66

http://dx.doi.org/10.22105/riej.2017.49169

Abstract
  The science of Data Envelopment Analysis (DEA) evaluates the effectiveness of decision making units. But, one of the problems of Data Envelopment Analysis (DEA) is that, if the number of units with the same efficiency equal to one was more than one, then we couldn’t select the best between them. ...  Read More

Data Envelopment Analysis, DEA
3. Assess the efficiency and effectiveness simultaneously in a three-stage process, by using a unified model

F Hosseinzadeh Lotfi; M. Jahanbakhsh

Volume 4, 1(4) , Autumn 2015, , Pages 15-23

http://dx.doi.org/10.22105/riej.2017.49165

Abstract
  By distinction between efficiency and effectiveness scales, the aim of this paper is to propose a model that can show the differents of efficiency and effectiveness. For this purpose, enveloping form of ICCR model ,has considered to calculate simultaneously the influences of efficiency and effectiveness. ...  Read More

4. Ranking Decision Making Units with Negative and Positive Input and Output

F Hosseinzadeh Lotfi; M. Piri

Volume 3, Issue 3 , Summer 2014, , Pages 69-74

Abstract
  Data Envelopment Analysis (DEA) is a nonparametric method for measuring the efficiency of Decision Making Units (DMUs) which was first introduced by Charnes, Cooper and Rhodes in1978 as the CCR model .One of the most important topics in management science is determining the efficiency of DMUs. DEA technique ...  Read More

5. Data Envelopment Analysis Based on MPSS Efficient and Inefficient Frontiers

F. Piran; F Hosseinzadeh Lotfi; M. Rostami-Malkhalifeh

Volume 2, Issue 4 , Autumn 2013, , Pages 15-25

Abstract
  Data envelopment analysis (DEA) is a non-parametric analytical methodology widely used in efficiency measurement of decision making units (DMUs). Conventionally, after identifying the efficient frontier, each DMU is compared to this frontier and classified as efficient or inefficient. This thesis introduces ...  Read More

6. A New Bargaining Game Model for Measuring Performance of Two-Stage Network Structures

F. Hosseinzadeh Lotfi; G.R. Jahanshahloo; S. Hemati; S. Givehchi

Volume 1, Issue 2 , Summer 2012, , Pages 27-39

Abstract
  Data envelopment analysis (DEA) mainly utilizes envelopment technology to replace production function in microeconomics. Based on this replacement, DEA is a widely used mathematical programming approach for evaluating the relative efficiency of decision making units (DMUs) in organizations. Evaluating ...  Read More