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Prediction of efficient outputs based on GM (1, N) model and weak DEA efficiency

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Prediction of efficient outputs based on GM (1, N) model and weak DEA efficiency

Prediction of efficient outputs based on GM (1, N) model and weak DEA efficiency

作者/编辑:Author:… http://www.unjs.com 自然科学论文
  [Prediction of efficient outputs based on GM (1, N) model and weak DEA efficiency]Abstract:This paper expresses the efficient outputs of decisionmaking unit (DMU) as the sum of “average outputs” forecasted by a GM (1,N) model and “increased outputs” which reflect the difficulty to realize efficient outputs.The increased outputs are solved by linear programming using data envelopment analysis efficiency theories,wherein a new sample is introduced whose inputs are equal to the budget in the issue No.n + 1 and outputs are forecasted by the GM (1,N) model.The shortcoming in the existing methods that the forecasted efficient outputs may be less than the possible actual outputs according to developing trends of input-output rate in the periods of pre-n is overcome.The new prediction method provides decision-makers with more decisionmaking information,and the initial conditions are easy to be given. 作者: Author: Jiefang Wang[1]  Sifeng Liu[2] 作者单位: College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China;College of Management and Economics, North China University of Water Resources and Electric Power,Zhengzhou 450000, P. R. ChinaCollege of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China 期 刊: 系统工程与电子技术(英文版)   EISCI Journal: Journal of Systems Engineering and Electronics 年,卷(期): 2011, 22(6) 分类号: N941.5 O221.1 Keywords: efficient outputs    GM (1,N) model    data envelopment analysis (DEA)    weak DEA efficiency    prediction    机标分类号: S7 O22 机标关键词: based    DEA    data envelopment analysis    linear programming    initial conditions    prediction method    information    model    theories    new    paper    DMU 基金项目: the Research Start Funds for Introducing High-level Talents of North China University of Water Resources and Electric Power Prediction of efficient outputs based on GM (1, N) model and weak DEA efficiency[期刊论文]  系统工程与电子技术(英文版) --2011, 22(6)This paper expresses the efficient outputs of decisionmaking unit (DMU) as the sum of “average outputs” forecasted by a GM (1,N) model and “increased outputs” which reflect the difficulty to realize ef...
Prediction of efficient outputs based on GM (1, N) model and weak DEA efficiency2
  第2篇 关于环境保护的论文:Effect of refining slag containing Ce2O3 on stee
  〖预览〗Abstract:The effect of pre-melting refining slag containing different contents of Ce2O3 on the absorption and modification of Al2O3 inclusion in an Al-killed steel was investigated through the slag/steel reaction experiment at 1600 ℃.It was found that the replacement of 10 wt.%Al2O3 with Ce2O3 for 50 wt.%CaO-33 wt.%Al2O3-7 wt.%MgO-10 wt.%SiO2 refining slag promoted the slag absorption ability of alumina inclusion,which made the total oxygen content determined by infrared absorption method decrease from 100 to 25 ppm in 15 min.The Mg-Al-Ce-O type inclusion was al……【全文阅读:关于环境保护的论文:Effect of refining slag containing Ce2O3 on stee
Prediction of efficient outputs based on GM (1, N) model and weak DEA efficiency3
  第3篇 Toxicological effects and risk assessment of lanthanum ions on leave
  〖预览〗Abstract:Viciafaba L.seedlings were hydroponically cultivated in 0-12 mg/L of extraneous lanthanum (La) for 15 d to investigate ecotoxicological effects and risk assessment of rare earth elements (REEs).The results showed that reactive oxygen species (ROS) production such as superoxide radical (O2-) and hydrogen peroxide (H2O2) were overproduced at higher concentrations of La,resulting in oxidatively modified proteins and shoot growth retardation.While,superoxide dismutase (SOD),catalase (CAT),ascorbate peroxidase (APX) and guaiacol peroxidase (GPX) isoenzymes w……【全文阅读:Toxicological effects and risk assessment of lanthanum ions on leave】   〔Prediction of efficient outputs based on GM (1, N) model and weak DEA efficiency
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