نتایج جستجو برای: dmu

تعداد نتایج: 678  

2015
Ying-Ming Wang Kwai-Sang Chin

Cross-efficiency evaluation is an effective way of ranking decision making units (DMUs) in data envelopment analysis (DEA). Existing approaches for cross-efficiency evaluation are mainly focused on the calculation of cross-efficiency matrix, but pay little attention to the aggregation of the efficiencies in the cross-efficiency matrix. The most widely used approach is to aggregate the efficienc...

Journal: :International journal of education and humanities 2022

Data envelopment analysis is a new field of interdisciplinary research in operations management science and mathematical economics. uses programming to evaluate the relationship between decision-making units with multiple inputs outputs (abbreviated as DMU). Effectiveness (DEA effective) judge whether DMU located on "frontier surface" production possibility set. This paper proposes method for e...

Journal: :مهندسی صنایع 0
بهلول ابراهیمی دانشجوی دکتری مهندسی صنایع پژوهشکدة توسعة تکنولوژی جهاد دانشگاهی شریف مرتضی رحمانی دانشیار گروه پژوهشی مهندسی صنایع پژوهشکدة توسعة تکنولوژی جهاد دانشگاهی شریف و دانشیار دانشکدة علوم پایه، دانشگاه علم و فرهنگ مرتضی خاکزار بفرویی استادیار گروه پژوهشی مهندسی صنایع پژوهشکدة توسعة تکنولوژی جهاد دانشگاهی شریف

sohrabi and nalchigar (2010) proposed a new data envelopment analysis (dea) model to identify the most efficient decision-making unit (dmu) in presence of imprecise data. in this paper, it is shown that the proposed model is not able to determine the most efficient dmu and is randomly introduced an efficient dmu. in addition, it is shown that this model determines the most efficient dmu in the ...

Journal: :Statistics, Optimization and Information Computing 2022

Data envelopment analysis (DEA) is a non-parametric technique for measuring and analyzing the relative efficiency of Decision-Making Unit (DMU) having multiple homogeneous types inputs outputs. Traditional DEA treats DMU as black boxes calculates their efficiencies by considering initial final But overall directly depended upon performances intermediate processes operations. In many situations,...

2016
Jaehun Park

Stepwise benchmark target selection in data envelopment analysis (DEA) is a realistic and effective method by which inefficient decision-making units (DMUs) can choose benchmarks in a stepwise manner. We propose, for the construction of a benchmarking network (i.e., a network structure consisting of an alternative sequence of benchmark targets), an approach that integrates the cross-efficiency ...

2010
Angelo Corallo Giampaolo Pascali

Assembly activities represent a crucial phase of new product development processes. The identification of potential assembly issues early in the design stage can thus allow companies to save time and cost of successive manufacturing phases. In such context, this article analyses the potential of digital mock-up (DMU) to enhance assembly feasibility and efficiency through specific design analysi...

2012
Mohammad Izadikhah

Data envelopment analysis (DEA) is a non-parametric method for evaluating the relative efficiency of decision making units (DMUs) on the basis of multiple inputs and outputs. The context-dependent DEA is introduced to measure the relative attractiveness of a particular DMU when compared to others. In real-world situation, because of incomplete or non-obtainable information, the data (Input and ...

Journal: :ITOR 2013
Silvio Figueiredo Gomes Júnior João Carlos Correia Baptista Soares de Mello Lidia Angulo Meza

Classic data envelopment analysis (DEA) models determine the efficiency of productive units, called decision making units (DMUs). DEA uses as its methodology the equiproportional reduction of inputs or increase of outputs and the finding of a single target for each DMU. This target does not incorporate the preference of the decision maker. Later works propose obtaining alternative targets based...

Journal: :Mathematical and Computer Modelling 2011
Gholam Reza Jahanshahloo F. Hosseinzadeh Lotfi N. Shoja A. Gholam Abri M. Fallah Jelodar Kamran Jamali Firouzabadi

In data envelopment analysis (DEA) efficient decision making units (DMUs) are of primary importance as they define the efficient frontier. By means of modified CCR model, in which the test DMU is excluded from the reference set, we are able to determine what perturbations of data can be tolerated before frontier DMUs become nonfrontier. In this paper we discuss simultaneous data perturbations i...

2014
G. R. Jahanshahloo F. Hosseinzadeh Lotfi M. Rostamy-Malkhalifeh S. Ghobadi

This paper studies the inverse data envelopment analysis using the nonradial enhanced Russell model. Necessary and sufficient conditions for inputs/outputs determination are introduced based on Pareto solutions of multiple-objective linear programming. In addition, an approach is investigated to identify extra input/lack output in each of input/output components (maximum/minimum reduction/incre...

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