نتایج جستجو برای: data envelopment analysis efficiency complex valued

تعداد نتایج: 5245736  

Journal: :jundishapur journal of health sciences 0
maryam najarzadeh department of rehabilitation management, muscul rehabilitation research center, school of rehabilitation, ahvaz jundishapur university of medical sciences, ahvaz, ir iran amin torabipoor roya ghasemzadeh department of rehabilitation management, muscul rehabilitation research center, school of rehabilitation, ahvaz jundishapur university of medical sciences, ahvaz, ir iran reza salehi department of physical therapy, school of rehabilitation, ahvaz jundishapur university of medical sciences, ahvaz, , ir iran

hospitals as the centers that consume the most resource of health system, based on their function have difference performance and efficiency. the purpose of this study was to assess the efficiency of ahvaz hospitals using data envelopment analysis (dea) method. this study is a descriptive-analytic study that assessed the efficiency of teaching and nonteaching hospitals in ahvaz using dea in 200...

Journal: :journal of optimization in industrial engineering 2011
reza kazemi matin

data envelopment analysis (dea) has been widely studied in the literature since its inception with charnes, cooper and rhodes work in 1978. the methodology behind the classical dea method is to determine how much improvements in the outputs (inputs) dimensions is necessary in order to render them efficient. one of the underlying assumptions of this methodology is that the units consume and prod...

Journal: :Journal of systems science and information 2021

Abstract DEA (data envelopment analysis) models can be divided into two groups: Radial and non-radial DEA, the latter has higher discriminatory power than former. The range adjusted measure (RAM) is an effective widely used approach. However, to best of our knowledge, there no literature on integer-valued super-efficiency RAM-DEA model, especially when undesirable outputs are included. We first...

Journal: :international journal of data envelopment analysis 0
f. seyed esmaeili department of mathematics, islamic azad university, south tehran branch, tehran, iran

data envelopment analysis (dea) is a mathematical programming-based approach for evaluates the relative efficiency of a set of dmus (decision making units). the relative efficiency of a dmu is the result of comparing the inputs and outputs of the dmu and those of other dmus in the pps (production possibility set). also, in data envelopment analysis various models have been developed in order to...

Journal: :international journal of data envelopment analysis 2013
s. banihashemi g. tohidi

the present study is an attempt towards remodeling cost, revenue and profit relationship within the network process. the previous models of data envelopment analysis (dea) have been too general in their scope and focused on the input and the output within a black box system, therefore they have not been able to measure various phases simultaneously within a network system. by using these models...

Journal: :iranian journal of public health 0
asma sabermahani dept. of health economics, school of health management and information sciences, tehran university of medical sciences, tehran, iran. mohsen barouni hesam seyedin aidin aryankhesal

human development index (hdi) is a composite indicator that can show the impact of economic strategies on human life standards. the index is calculated by three main factors of income, education and health. this research studies the status of hdi across the iranian provinces, its changes over time and the efficiency of provinces in using resources.the data for 2001 and 2009 was obtained from th...

Journal: :journal of linear and topological algebra (jlta) 2015
saber saati n. nayebi

data envelopment analysis (dea) is a method to evaluate the relative efficiency of decision making units (dmus). in this method, the issue has always been to determine a set of weights for each dmu which often caused many problems. since the dea models also have the multi-objective linear programming (molp) problems nature, a rational relationship can be established between molp and dea problem...

Journal: :journal of industrial engineering, international 2011
s razavyan gh tohidi

this paper uses integrated data envelopment analysis (dea) models to rank all extreme and non-extreme efficient decision making units (dmus) and then applies integrated dea ranking method as a criterion to modify genetic algorithm (ga) for finding pareto optimal solutions of a multi objective programming (mop) problem. the researchers have used ranking method as a shortcut way to modify ga to d...

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