نتایج جستجو برای: imprecise data envelopment analysis idea

تعداد نتایج: 4565128  

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....

Ashkan Hafezalkotob Elham Haji-Sami Hashem Omrani

Crisp input and output data are fundamentally indispensable in traditional data envelopment analysis (DEA). However, the real-world problems often deal with imprecise or ambiguous data. In this paper, we propose a novel robust data envelopment model (RDEA) to investigate the efficiencies of decision-making units (DMU) when there are discrete uncertain input and output data. The method is based ...

F. seyed Esmaeili M. Rostamy-Malkhalifeh

The basic assumption in data envelopment analysis patterns (DEA) (such as the CCR andBCC models) is that the value of data related to the inputs and outputs is a precise andpositive number, but most of the time in real conditions of business, determining precisenumerical value is not possible in for some inputs or outputs. For this purpose, differentmodels have been proposed in DEA for imprecis...

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: :ژورنال بین المللی پژوهش عملیاتی 0
s. r. mirshafaei f. keshavarz gildeh a. bina vajargahi

the ways of placing decision making units (dmus) in certain clusters are found as a subject in statistics, these ways usually are heuristic. the proposed clustering approach in this article considers preferences of dmus. this study applies data envelopment analysis (dea) dmus are clustered by solving multi-objective linear problem (molp) and by considering preferences of each dmu at production ...

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