نتایج جستجو برای: network dea global cost efficiency multi

تعداد نتایج: 2071439  

2015
Mangor Pedersen Amir H. Omidvarnia Jennifer M. Walz Graeme D. Jackson

Focal epilepsy is conceived of as activating local areas of the brain as well as engaging regional brain networks. Graph theory represents a powerful quantitative framework for investigation of brain networks. Here we investigate whether functional network changes are present in extratemporal focal epilepsy. Task-free functional magnetic resonance imaging data from 15 subjects with extratempora...

In data envelopment analysis (DEA), mul-tiplier and envelopment CCR models eval-uate the decision-making units (DMUs) under optimal conditions. Therefore, the best prices are allocated to the inputs and outputs. Thus, if a given DMU was not efficient under optimal conditions, it would not be considered efficient by any other models. In the current study, using common weights in DEA, a number of...

2012
Henriette Rau Jacob Grieger Christian Marzahl Peter Penndorf Martin Staemmler

Fall detection based on images is rated obtrusive and costly. This paper presents an unobtrusive fall detection system, which allows a nearly invisible positioning under furniture and cost-efficient integration and scalability in retirement homes via WLAN. The system classifies events using image analysis and notifies the caregiver if an alarming event occurred. It was successfully tested in a ...

2016
Li Zhang Yu Luo

The level of development of higher education is a sign of a country's comprehensive national strength and the level of economic and social development. In this paper, the author makes comprehensive evaluation of the resource utilization efficiency in higher education, by using large scale network data, the result shows that the main reason lead to non DEA effective in colleges and universities ...

Subhadip Sarkar

Data Envelopment Analysis (DEA) is a nonparametric tool for discriminating the best performers from a number of homogenous Decision Making Units (DMU). Cost oriented DEA models identify those best DMUs which run cost efficient process. This paper validates the outcome derived from the Ideal Frontier (mentioned in Sarkar. S (2014)) derived from non-central Principal Component Analysis and a slac...

Journal: :مدیریت صنعتی 0
سیدعلی رخشان کارشناس‎ارشد ریاضی کاربردی، دانشکدۀ ریاضی، دانشگاه علم و صنعت ایران، تهران، ایران محمدرضا علیرضایی دانشیار گروه ریاضی کاربردی، دانشگاه علم و صنعت ایران، تهران، ایران

data envelopment analysis (dea) is one of the scientific method that computes the efficiency by using a powerful mathematics basic. data envelopment analysis is a non-parametric technique to evaluate the efficiency of a set of decision making units (dmu) with multi inputs and outputs . since dea’s models classifies decision making units into two categories of efficient and inefficient, so most ...

In a global economy, an efficient supply chain as a main core competency empowers enterprises to provide products or services at the right time in the right quantity, at a low cost. This paper is to plan a single product, multi-echelon, multi-period closed loop supply chain for high-tech products (which have continuous price decrease). Ultimately, considering components rated to procurement, pr...

A. Malek, F. Ghorbani, G. Aslani, S. H. Momeni-Masuleh,

In the present time, evaluating the performance of banks is one of the important subjects for societies and the bank managers who want to expand the scope of their operation. One of the non-parametric approaches for evaluating efficiency is data envelopment analysis(DEA). By a mathematical programming model, DEA provides an estimation of efficiency surfaces. A major problem faced by DEA is that...

2005
Lei Zhang Michael Mannino Biswadip Ghosh Judy E. Scott

This paper proposes the macro model and micro model for the efficiency evaluation of data warehouses (DWH), and introduces Fuzzy Data Envelopment Analysis (FDEA) and Data Envelopment Analysis (DEA) to comprehensively assess DWH efficiency. FDEA can determine the efficiencies of data warehouses with multiple input / output variables, and also resolve the problem that standard DEA cannot handle w...

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