نتایج جستجو برای: dmu

تعداد نتایج: 678  

رضا فرضی پور صائن عزیزالله معمار یانی فرهاد حسین زاده لطفی

فرض کلیه مدل های فعلی DEA ، بر تجانس کامل DMU ها استوار می باشد.هدف این مقاله ارائه مدلی برای تعیین کارایی نسبی واحدهای تصمیم گیری تا حدی متجانس به کمک تکنیک DEA می باشد. در مدل پیشنهاد شده ابتدا توسط میانگین سری، مقادیر گمشده تکمیل می گردد، سپس به کمک تکنیک AHP اندازه نسبی بزرگی DMU ها در نظر گرفته می شود و در نهایت کارایی نسبی DMU ها به کمک تکنیک تحلیل پوششی داده ها محدود شده به قیود تصادفی ت...

Journal: :international journal of data envelopment analysis 0
e. sarfi e. noroozi f. hosseinzadeh lotfi

one of the important issues in data envelopment analysis (dea) is sensitivity analysis. heretofore the existent studies have considered the data modification of inputs and outputs in one or multiple dmus. in this paper the number of dmus is increased and a stability region is obtained in  by applying defining hyperplanes in which if the added dmu (only one dmu) is in this region then all of the...

Journal: :international journal of data envelopment analysis 0
sevan sohraiee department of mathematics, faculty of sciences, tehran north branch, islamic azad university, tehran, iran

the problem of utilizing undesirable (bad) outputs in dea models often need replacing the assumption of free disposability of outputs by weak disposability of outputs. the kuosmanen technology is the only correct representation of the fully convex technology exhibiting weak disposability of bad and good outputs. also, there are some specific features of non-radial data envelopment analysis (dea...

Journal: :international journal of data envelopment analysis 2013
b. shavazipour

in this paper, presenting two simple methods for ranking of efficient dmus in dea models that included to add one virtual dmu as ideal dmu and is using the additive model. note that, we use an ideal point just for comparing efficient dmus with. although these methods are simple, they have ability for ranking all efficient dmus, extreme points and the others, also they are capable of ranking the...

Journal: :Jurnal Ilmu Manajemen & Ekonomika 2023

This study began with an observation of the financial performance banks in assessing efficiency commercial Indonesia 2016 period and found inefficiency problems BUKU I based on values (BOPO) as indicator bank efficiency. is analysis measurement using quantitative secondary data obtained from balance sheet income statement for each sample (DMU) - 2017 a math-ematical model (linear program) Non-P...

Kiaei, H., naseri, S.H.,

To rank Decision Making Units (DMU) in Data Envelopment Analysis (DEA), the peer-evaluation based cross-efficiency method is generally used. Indeed, in this method, each DMU is evaluated from the view point of other DMUs. In this article, a method is suggested which instead examines each DMU just by using the weights resulting from the evaluation of ideal and anti-ideal virtual DMUs and thus ex...

This paper proposes a new method based on the ideal input vector to estimate inputs of a given decision making unit (DMU) when some or all of its outputs are increased to maintain its current efficiency level. In other words, this paper studied the following question: How much would be the increase in the inputs of the DMU if the decision maker increases certain outputs to a particular unit in ...

Journal: :Proceedings of the ... AAAI Conference on Artificial Intelligence 2023

The traditional model upgrading paradigm for retrieval requires recomputing all gallery embeddings before deploying the new (dubbed as "backfilling"), which is quite expensive and time-consuming considering billions of instances in industrial applications. BCT presents first step towards backward-compatible upgrades to get rid backfilling. It workable but leaves a dilemma between feature discri...

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