eng
International Journal of Data Envelopment Analysis
2345-458X
2345-458X
2017-05-01
5
2
1193
1206
12315
مقاله پژوهشی
Data Envelopment Analysis with Sensitive Analysis and Super-efficiency in Indian Banking Sector
Q. Farooq Dar
1
T. Rao Pad
2
A. Muhammad Tali
3
Yaser Hamid
4
F Danish
5
Department of Statistics, Ramanujan School of Mathematical Science, Pondicherry University, India
Department of Statistics, Ramanujan School of Mathematical Science, Pondicherry University, India
Department of Statistics, Ramanujan School of Mathematical Science, Pondicherry University, India
Dept. of Computer Science, Islamic University of Science and Technology Jammu and Kashmir, India
Division of Statistics and Computer Science, SKUAST-Jammu, India
Data envelopment analysis (DEA) is non-parametric linear programming (LP) based technique for estimating the relative efficiency of different decision making units (DMUs) assessing the homogeneous type of multiple-inputs and multiple-outputs. The procedure does not require a priori knowledge of weights, while the main concern of this non-parametric technique is to estimate the optimal weights of inputs and outputs through which the proper classifications of DMUs are possible. DMUs classification with DEA has many challenges in the case of volatility in the values of inputs and outputs. Sensitivity classifications (either efficient or inefficient) as well as returns to scale (RTS) classification (CRS, IRS and DRS) of DMUs are the prominent and vital challenges in DEA studies. Flexible and feasible convex regions with changing values of the reference units from the reference set of inefficient DMUs. This paper has proposed the issues of sensitivities regarding the above mentioned classifications of DMUs and assessing the technical efficiencies by using SBM case of DEA models. Super-efficiency is estimated in case of input and output slacks approach measure and ranking was mad as per the super-efficiency score. Validity of the proposed model is carried with the suitable numerical illustration.
http://ijdea.srbiau.ac.ir/article_12315_f204a975dcc6e14e7f99444a26c94fc9.pdf
Sensitivity analysis
Decision Making Units
Super Efficiency
Data Envelopment Analysis
Linear programming problems
classifications
Slacks Approach Measure
eng
International Journal of Data Envelopment Analysis
2345-458X
2345-458X
2017-05-01
5
2
1207
1230
12316
مقاله پژوهشی
Resource allocation based on DEA for distance improvement to MPSS points considering environmental factors
Azam Mottaghi
1
Reza Ezzati
2
Esmaeil Khorram
3
Faculty of Mathematics and Computer Science, Amirkabir University of Technology, 424 Hafez Avenue, 15914 Tehran, Iran
Department of Mathematics, Islamic Azad University, Karaj Branch, Karaj, Iran
Faculty of Mathematics and Computer Science, Amirkabir University of Technology, 424 Hafez Avenue, 15914 Tehran, Iran
This paper proposes a new resource allocation model which is based on data envelopment analysis (DEA) and concerns systems with several homogeneous units operating under supervision of a central unit. The previous studies in DEA literature deal with reallocating/allocating organizational resource to improve performance or maximize the total amount of outputs produced by individual units. In those researches, it is assumed that all data are discretionary. Resource allocation problem has a multiple criteria nature; thus to solve it, many intervening factors should be regarded. This paper not only develops resource allocation plan for systems with both discretionary and non discretionary data in their inputs, but also considers environmental factors as well. In addition, the overall distance from the decision making units (DMUs) to their most productive scale size (MPSS) points is taken into account and is minimized in this method. To find the best allocation plan, this paper applies multiple objective programming (MOLP). Numerical examples are employed to illustrate the application of this approach on real data.
http://ijdea.srbiau.ac.ir/article_12316_042c91a8d8522b87b8cae24a5b872b61.pdf
Resource Allocation
DEA
MOLP
MPSS point
Undesirable outputs
Discretionary inputs
eng
International Journal of Data Envelopment Analysis
2345-458X
2345-458X
2017-05-01
5
2
1231
1242
12317
مقاله پژوهشی
A DEA-bases Approach for Multi-objective Design of Attribute Acceptance Sampling Plans
S. Jafarian-Namin
1
A Pakzad
2
M.S. M.S. Fallah Nezhad
3
Faculty of Industrial Engineering, Yazd University, Yazd, Iran
Department of Indutrial Engineering, Kosar University of Bojnord, Bojnord, Iran
Faculty of Industrial Engineering, Yazd University, Yazd, Iran
Acceptance sampling (AS), as one of the main fields of statistical quality control (SQC),<br />involves a system of principles and methods to make decisions about accepting or rejecting a<br />lot or sample. For attributes, the design of a single AS plan generally requires determination of<br />sample size, and acceptance number. Numerous approaches have been developed for<br />optimally selection of design parameters in last decades. We develop a multi-objective<br />economic-statistical design (MOESD) of the single AS plan to reach a well-balanced<br />compromise between cost and quality features. Moreover, a simple and efficient DEA-based<br />algorithm for solving the model is proposed. Through a simulation study, the efficiency of<br />proposed model is illustrated. Comparisons of optimal designs obtained using MOESD to<br />economic model with statistical constraints reveals enhanced performance of the multiobjective<br />model.
http://ijdea.srbiau.ac.ir/article_12317_54f6e692fae227caa46a1391551d1c62.pdf
Acceptance sampling
Single sampling plan
MOESD
DEA
eng
International Journal of Data Envelopment Analysis
2345-458X
2345-458X
2017-05-01
5
2
1243
1256
12318
مقاله پژوهشی
Interval Malmquist Productivity Index in DEA
N. Aghayi
1
B.H. Maleki
2
Department of Mathematics, Ardabil Branch, Islamic Azad University, Ardabil, Iran
Department of Mathematics, Ardabil Branch, Islamic Azad University, Ardabil, Iran
Data envelopment analysis is a method for evaluating the relative efficiency of a collection of decision making units. The DEA classic models calculate each unit’s efficiency in the best condition, meaning that finds a weight that the DMU is at its maximum efficiency. In this paper, utilizing the directional distance function model in the presence of undesirable outputs, the efficiency of each unit has been calculated in the best and worst condition and an efficiency interval for each DMU is designated and then with aid from these efficiency interval, we present an interval for each unit with a proportionate Malmquist productivity index, that these intervals indicate the progression or regression of each DMU.
http://ijdea.srbiau.ac.ir/article_12318_a9c3ad18e17f8dbdde61dcad23ec8fc8.pdf
Interval data
Directional distance function
Undesirable Output
Malmquist Productivity Index
eng
International Journal of Data Envelopment Analysis
2345-458X
2345-458X
2017-05-01
5
2
1257
1276
13490
مقاله پژوهشی
Efficiency analysis in multi-stage network DEA-R models
Mohammad Reza Mozaffari
mozaffari854@yahoo.com
1
masoud Sanei
masoudsanei49@yahoo.com
2
josef jablonsky
jablon@vse.cz
3
Department of Mathematics, Shiraz Branch, Islamic Azad University, Shiraz, Iran
Islamic Azad Univercity, Central Tehran Branch
Department of Econometrics, University of Economics, Prague, Czech Republic.
In many organizations and financial institutions, it is in many cases more cost and time efficient to access ratio data. Therefore, it is of great importance to evaluate the performance of decision-making units (DMUs) which only have access to ratios of inputs to outputs or vice versa (for instance, ratio of employees to students, ratio of assets to liabilities and ratio of doctors to patients). In this paper, we will propose two-stage network DEA-R model with multi-objective linear programming (MOLP) structures. Then, introducing a production possibility set (PPS) in each network stage, we will compare efficiency values in network DEA and DEA-R. In the end, through an applied study on 22 medical centers which treat special patients in three stages, we will suggest an output-oriented multi-stage network DEA-R model under assumption of CRS technology. The medical centers are evaluated in all three stages based on overall network efficiency. The results of the analysis are presented and a future research in this field is discussed in the final section of the paper.
http://ijdea.srbiau.ac.ir/article_13490_37b070d1432ec92c510c2bbad5357c35.pdf
DEA
Network DEA
DEA-R models
Efficiency
eng
International Journal of Data Envelopment Analysis
2345-458X
2345-458X
2017-05-01
5
2
1277
1290
13492
مقاله پژوهشی
A general Approach to find Non-Zero Multiplier Weights in DEA
F. Moradi
1
S. Shahghobadi
s.shahghobadi@iauksh.ac.ir
2
Department of Mathematics, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.
Department of Mathematics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.
Data Envelopment Analysis (DEA) models can be stated as two mutually dual linear programs referred to as the envelopment and multiplier models. The multiplier models are stated in terms of variable input and output weights (multipliers). Zero multiplier weight for an input or output causes efficient problems in multiplier model. This paper concentrates on a previously proposed DEA model developed by Wang and Chin (2010) and later improved by Wang et al. (2011) to find non-zero multi-plier weights. We will show that these models reveal shortcoming for certain classes of DMUs. In addition, we propose a general developed model to find a maximal element for a multiplier DEA model.
http://ijdea.srbiau.ac.ir/article_13492_ca8970177aba68dcd36e16283fc25245.pdf
Data Envelopment Analysis
Maximal element
Cross-efficiency.