نتایج جستجو برای: data envelopment analysis slack

تعداد نتایج: 4490217  

Journal: :iranian journal of optimization 0
sohrab kordrostami lahijan branch, islamic azad university alireza amirteimoori rasht branch, islamic azad university monireh jahani sayyad noveiri lahijan branch, islamic azad university

banks are one of the most important financial sectors in order to the economic development of each country. certainly, efficiency scores and ranks of banks are significant and effective aspects towards future planning. sometimes the performance of banks must be measured in the presence of undesirable and vague factors. for these reasons in the current paper a procedure based on data envelopment...

Journal: :international journal of data envelopment analysis 2013
b. babazadehah e. najafi m. ahadzadehnamin y. jafari e. ebrahimi

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 is obtained which may be less than or equal to one. given the possible large number of functional units, we use various ranking methods for evaluating units. one of the rating methods is balance index and topsis....

Journal: :international journal of industrial mathematics 0
s. kordrostami‎‎ department of mathematics, lahijan branch, islamic azad university, lahijan, ‎iran.‎ m. jahani sayyad ‎noveiri department of mathematics, lahijan branch, islamic azad university, lahijan, ‎iran.‎

data envelopment analysis (dea) is a mathematical technique to evaluate the performance of firms with multiple inputs and outputs. in conventional dea models, the efficiency scores of decision making units (dmus) with non-negative inputs and outputs are evaluated in a special period of time. however, in the real world there are situations wherein performance of firms must be evaluated in multip...

Journal: :international journal of data envelopment analysis 0
b. babazadehah 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 e. ebrahimi department of industrial engineering, science and research branch, islamic azad university, saveh, iran

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 is obtained which may be less than or equal to one. given the possible large number of functional units, we use various ranking methods for evaluating units. one of the rating methods is balance index and topsis....

2016
Hongwei Liu Yang Zhang Qingyuan Zhu Junfei Chu

As the second largest economic entity in the world, China plays an important role in controlling global carbon dioxide (CO2) emissions. The land transportation sector (including railway transportation and road transportation) has been the most important source of emissions in China and the average CO2 emissions of land transportation were 529.31 million tons during the period 2009e2012. In this...

2010
Tiziano Bellini

Data envelopment analysis (DEA) is a nonstochastic and nonparametric linear programming technique where a set of units are evaluated according to their input consumption and output production (Charnes et al. (1978)). Given that DEA efficiency analysis can be influenced by the presence of outliers, Banker and Chang (2006) proposed a method to detect atypical units through the super-efficiency mo...

Journal: :international journal of data envelopment analysis 0
m. fallah jelodar

the cross efficiency evaluation is used to performance measurement of decision making units in data envelopment analysis concept. one of the most important shortcoming of this method is existing alternative optimal solution and therefore, the efficiency scores are not unique. we are going to summarize the pervious models proposed by researchers and suggest an alternative secondary goal approach...

Journal: :international journal of data envelopment analysis 2014
h. zare haghighi m. rostamy-malkhalifeh

data envelopment analysis (dea) has been long employed as a popular methodology to evaluate the performance of various production activities with multiple inputs and outputs. however, an important issue is that the production process in the real world inevitably generates undesirable outputs (like wastes and pollutants) along with desirable outputs. therefore, the undesirable outputs should be ...

Journal: :international journal of industrial mathematics 0
m. shahriari faculty of management‎, ‎uae branch‎, ‎islamic azad university‎, ‎dubai‎, ‎uae‎.

data envelopment analysis (dea) is a method used for measuring the efficiency of decision-making units‎. unlike the standard models‎, ‎which assume decision-making units to be a black box‎, ‎network data envelopment analysis focuses on the internal structure of these units‎. ‎some researchers have developed a two-stage method where all the inputs are entirely used in the first stage‎, ‎producin...

2006
Chyan Yang Wen-Min Lu

This paper proposes an alternative data envelopment analysis for assessing the operational performance of 46 international tourist hotels (ITHs) in Taiwan over the period 1997-2002. This study is the first research that combines the discriminant power of a slack-based measure and the dynamic view of window analysis in applying DEA. It is shown that the trend of mean managerial efficiency is inc...

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