نتایج جستجو برای: dmu

تعداد نتایج: 678  

2013
S. Daneshvar E. Aziz Afshari

Abstract: Data Envelopment Analysis (DEA) is a mathematical programming method for the assessment of relative efficiency of a set of Decision Making Units (DMUs) that use several inputs to produce several outputs. It measures the efficiency of each Decision Making Unit (DMU) by maximizing the ratio of virtual output to virtual input with the constraint that the ratio does not exceed one for eac...

ژورنال: مهندسی صنایع 2015

سهرابی و نالچیگر (1389)، مدل نوین تحلیل پوششی داده‌ها را برای شناسایی کاراترین واحد تصمیم‌گیری (DMU) با داده‌های غیردقیق ارائه کردند. در این مقاله نشان داده می­شود مدل ارائه‌شده لزوماً قادر به تعیین کاراترین DMU نیست و این مدل به‌طورتصادفی یکی از DMUهای کارا را، کاراترین معرفی می­کند. همچنین ممکن است مدل ارائه‌شده برای تعیین کاراترین DMU در حالت بازده به مقیاس متغیر غیرممکن باشد. برای غلبه بر ای...

Journal: :European Journal of Operational Research 2006
Gautam Appa H. Paul Williams

We provide an alternative framework for solving Data Envelopment Analysis (DEA) models which, in comparison with the standard Linear Programming (LP) based approach that solves one LP for each Decision Making Unit (DMU), delivers much more information. By projecting out all the variables which are common to all LP runs, we obtain a formula into which we can substitute the inputs and outputs of ...

Journal: :Chemical communications 2013
Sangram Gore Kiran Chinthapally Sundarababu Baskaran Burkhard König

A novel domino synthesis of 1,3,5-trisubstituted hydantoin derivatives has been developed in low melting L-(+)-tartaric acid-DMU melt mixtures. The functionalized hydantoins are obtained in good yields from β,γ-unsaturated ketoacids and urea under environmentally benign and simple reaction conditions.

Journal: :International Journal of Power Electronics and Drive Systems 2023

<span lang="EN-US">Planning production is an essential component of the decision-making process, which has a direct bearing on effectiveness systems. This study’s objective to investigate efficiency performance units (DMU) in relation planning issues. However, system manufacturing environment frequently subject uncertain situations, such as demand and labor, this can have effect not only ...

H. Azizi, , R. Jahed, ,

The performances of decision-making units (DMUs) can be evaluated from two different points of view optimistic and pessimistic and accordingly, two different efficiencies can be calculated for each DMU: the best relative efficiency and the worst relative efficiency. In the conventional methods of data envelopment analysis (DEA), only the best relative efficiency is evaluated. It is argued h...

Azizi, H., Jafari Shaerlar, A., Jahed, R.,

Data envelopment analysis (DEA) is a method to measure relative efficiency of a set of decision-making units (DMUs) which uses multiple inputs and produces multiple outputs. In the conventional DEA, crisp inputs and outputs are fundamentally necessary. But the observed values of inputs and outputs in real-world problems are sometimes imprecise. Thus, performance measurement often needs to be do...

Journal: :Library Trends 2003
Wonsik Shim

INCREASINGLY, their use of resources IBRARIES A R E ASKED T O JUSTIFY in terms of producing meaningful services and impacts to the users and the parent organizations. This study applied an analytical technique called Data Envelopment Analysis (DEA) to calculate the relative technical efficiency of ninety-five academic research libraries that are members of the Association of Research Libraries....

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید