نتایج جستجو برای: data envelopment analysis model

تعداد نتایج: 5751262  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی عمران 1388

چکیده روش های متعددی برای برآورد رواناب حاصل از بارش در حوضه های آبریز وجود دارد. یکی از این روش ها استفاده از مدل های هیدرولوژیکی است. با استفاده از مدل های هیدرولوژیکی و شبیه سازی فرآیندهای هیدرولوژیکی می توان با صرف کمترین زمان و هزینه، رواناب و مولفه های دیگر چرخ? هیدرولوژیکی را برآورد کرد. از آنجا که در حوضه های آبریز اندازه گیری تمام کمیت های مورد نیاز برای تحلیل رواناب ممکن نیست، انتخاب...

Journal: :international journal of data envelopment analysis 0
akbar rahimipoor young researchers club and elite, sirjan branch, islamic azad university, sirjan, iran masomeh tadress hasani young researchers club and elite, sirjan branch, islamic azad university, sirjan, iran

recent bankruptcy of big companies all over the world and fluctuations in iran's stock market require that some methods be developed for the evaluation of companies' financial potential. different models are used for the prediction of bankruptcy and the evaluation of organizational financial situation. environmental changes and increasing competition among agencies led to companies&ap...

Journal: :iranian journal of optimization 2010
a. mahmoodi rad r. dehghan f. hosseinzadeh lotfi

in this paper, we show that inverse data envelopment analysis (dea) models can be used to estimate output with fuzzy data for a decision making unit (dmu) when some or all inputs are increased and deficiency level of the unit remains unchanged.

Journal: :iranian journal of optimization 0
amir amini msc. graduate of industrial engineering, alghadir institute of higher education, tabriz, iran alireza alinezhad associate professor, faculty of industrial and mechanical engineering, qazvin branch, islamic azad university, qazvin, iran.

this paper processes a combined method, based on vikor and data envelopment analysis (dea) to select the units with most efficiency. we utilize the vikor as compromise solution method. this research is a two-stage model designed to fully rank the alternatives, where each alternative has multiple inputs and outputs. the problem involves belief parameters in the solution procedure. first, the alt...

Journal: :مدیریت صنعتی 0
احمد رضا جعفریان مقدم دانشگاه علم و صنعت ایران کیوان قصیری دانشگاه علم و صنعت ایران

data envelopment analysis (dea) is a managerial powerful tool for assess the performance of decision making units (dmus). nowadays, multi-objective dea models are an attractive technique for evaluation quantity and quality aspects of performance analysis. but these models are in static. in this paper, we want to present a proposed fuzzy dynamic multi-objective dea model in which data are changi...

Journal: :international journal of hospital research 2013
amir afsharinia morteza bagherpour kambiz farahmand

background and objectives: evaluating the performance of clinical units is critical for effective managementof health settings. certain assessment of clinical variables for performance analysis is not always possible,calling for use of uncertainty theory. this study aimed to develop and evaluate an integrated independentcomponent analysis-fuzzy-data envelopment analysis approach to accurate the...

Journal: :ژورنال بین المللی پژوهش عملیاتی 0
m. khodabakhshi a. barani f. khodabakhshi k. moradian m. nemati goodarzi

performance evaluation of electricity distribution units is an important issue between researchers and regulators. classic data envelopment analysis models with deterministic data have been used by many authors to measure efficiency of power distribution units in different countries. however, data envelopment analysis with stochastic data are rarely used to measure efficiency of distribution co...

Journal: :The Stata Journal: Promoting communications on statistics and Stata 2010

Journal: :international journal of industrial mathematics 0
m. ‎jahantighi department of mathematics‎, ‎islamic azad ‎‎university‎, ‎zahedan branch‎, ‎zahedan‎, ‎iran.‎ z. ‎moghaddas‎ department of electrical‎, ‎computer and biomedical engineering‎, ‎‎‎islamic azad university‎, ‎qazvin branch‎, ‎qazvin‎, ‎iran. m. ‎vaez-‎ghasemi‎ department of mathematics‎, ‎islamic azad‎‎ university‎, ‎rasht ‎b‎ranch‎, ‎rasht‎, ‎iran.‎

‎in this paper allocating a fixed resource for producing ‎finite projects in order to obtaining a desired level of‎ ‎efficiency will be discussed‎. ‎note that it is assumed that a ‎vector of limited sources is at hand‎. ‎this vector of resources can‎ ‎be contained human resource‎, ‎budget‎, ‎equipment‎, ‎and facilities‎. ‎in ‎any firm there exist different suggestions from subunits for ‎running...

A. Amirteimoori, M. Pakdaman Ashrafiyeh, S. Kordrostami,

Rough data envelopment analysis (RDEA) evaluates the performance of the decision making units (DMUs) under rough uncertainty assumption. In this paper, new discussion regarding RDEA is extended. The RSBM model is proposed by integrating SBM model and rough set theory. The process of reaching solution is presented and this model is applied to efficiency evaluation of the DMUs with uncertain ...

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