مدل کارایی dea-r و رابطه های آن با برخی مدل های dea

تخصیص منابع مرکزی براساس کارایی ارزش در DEA و DEA-R

In this article, centralized resource allocation (CRA) models based on the value efficiency in DEA and DEA-R are recommended. In general, if the input and output data of decision-making units are available, DEA models provide targets of units on the efficiency frontier in addition to the efficiency of units. However, if only a ratio of the input data to output data, or vice versa, is available,...

Scale Efficiency in DEA and DEA-R with Weight Restriction

In data envelopment analyze (DEA) the scale efficiency in the input-oriented CCR model is less than or equal to the scale efficiency in DEA based on the fractional analysis (DEA-R). Also, the scale efficiency in case of multiple inputs and one output and vice versa the scale efficiencies are equal in DEA and DEA-R. In this paper, first, DEA-R model with weight restrictions when there is relativ...

Determining Malmquist Productivity Index in DEA and DEA-R based on Value Efficiency

Malmquist Productivity Index (MPI) is a numeric index that is of great importance in measuring productivity and its changes. In recent years, tools like DEA have been utilized for determining MPI. In the present paper, some models are recommended for calculating MPI when there are just ratio data available. Then, using DEA and DEA-R, some models are proposed under the constant returns to scale ...

Preprocessing DEA

Statement of Scope and Purpose. This is a comprehensive study of preprocessing in DEA. The purpose is to provide tools that will reduce the computational burden of DEA studies especially in large scale applications. Abstract. We collect, organize, analyze, implement, test, and compare a comprehensive list of ideas for pre-processors for entity classification in DEA. We limit our focus to proced...

یک مدل شبه DEA برای اندازه گیری کارایی تجمعی و کارایی مولفه ای

Dea Doklestic

The area of focus in this study is mainly Arizona, due to data richness and availability. Monsoon rains in Arizona usually start abruptly in early July and last until September. This strong precipitation pulse comprises the majority of precipitation in the region. It also influences the region’s energy budget in terms of flux partitioning. The question that arises naturally is – how does the ch...