نتایج جستجو برای: network data envelopment analysis model

تعداد نتایج: 6046067  

Journal: :international journal of data envelopment analysis 0
hoda golshani department of mathematics, yadegar - e- imam khomeini (rah), shahr-e-rey branch, islamic azad university, tehran, iran. hadi bagherzadeh valami department of mathematics, yadegar - e- imam khomeini (rah), shahr-e-rey branch, islamic azad university, tehran, iran. alireza davoodi department of mathematics, neyshabur branch, islamic azad university, neyshabur, iran

credit scoring is a kind of binary classification problem that contains important information for manager to make a decision in particularly in banking authorities. obtained scores provide a practical credit decision for a loan officer to classify clients to reject or accept for payment loan. for this sake, in this paper a data envelopment analysis- discriminant analysis (dea-da) approach is us...

Journal: :iranian journal of public health 0
edris kakemam abbas rahimi forushani hossein dargahi

background: nowadays, restriction on access and optimum use of resources is the main challenge of development in all organizations. therefore, the aim of this study was to determine the technical efficiency and its factors, influencing hospitals of tehran. methods: this research was a descriptive-analytical and retrospective study conducted in 2014-2015. fifty two hospitals with public, private...

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....

Given the speedy increase of knowledge in today's world, companies have to resort to communication technology so that they may harmoniously adapt themselves with the ever-variating conditions this, in turn, leads to more and more investments in this technology in a rapid pace. This study takes Data Envelopment Analysis (DEA) model to evaluate the financial performance of the provincial telecomm...

Journal: :Information & Management 2002
Benjamin B. M. Shao Winston T. Lin

One of the difficult challenges facing management and researchers today is how to justify costly investments in information technology (IT). This paper presents an approach to investigating the effects of IT on technical efficiency in a firm’s production process through a two-stage analytical study with a firm-level data set. In the first stage, a nonparametric frontier method of data envelopme...

Journal: :international journal of mathematical modelling and computations 0
s. keikha- javan department of mathematics, zabol branch, islamic azad university, zabol, iran m. rostamy-malkhalifeh department of mathematics, science and research branch, islamic azad university, tehran, iran

data envelopment analysis (dea) is a non-parametric technique for evaluation of relative efficiency of decision making units described by multiple inputs and outputs. it is based on solving linear programming problems. since 1978 when basic dea model was introduced many its modifications were formulated. among them are two or multi-stage models with serial or parallel structure often called net...

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...

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