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1.
Prediction Model of Data Envelopment Analysis with Undesirable Outputs   总被引:3,自引:0,他引:3  
Data envelopment analysis (DEA) has become a standard non-parametric approach to productivity analysis, especially to relative efficiency analysis of decision making units (DMUs). Extended to the prediction field, it can solve the prediction problem with multiple inputs and outputs which can not be solved easily by the regression analysis method. But the traditional DEA models can not solve the problem with undesirable outputs,so in this paper the inherent relationship between goal programming and the DEA method based on the relationship between multiple goal programming and goal programming is explored, and a mixed DEA model which can make all factors of inputs and undesirable outputs decrease in different proportions is built. And at the same time,all the factors of desirable outputs increase in different proportions.  相似文献   

2.
利用DEA模型,对安徽、江苏、浙江、上海4省市2005-2007年3年旅游业投资效率进行比较研究,结果表明:上海市连续3年DEA有效,且不存在投入冗余和产出不足,其余3省虽然不同年份存在非DEA有效,但总体效率还是较高的.4省市作为"泛长三角"区域性旅游业整体,要提高区域旅游业的效率,需提升旅游业管理水平、精简从业人员...  相似文献   

3.
DEA模型在高等学校内部院系效益评估中的运用   总被引:1,自引:0,他引:1  
DEA(数据包络分析)模型在关于多指标输入与多指标输出的相对效率评价中具有独特优势。根据某师范大学15个文科类院系在7个指标上的效益评估实例分析表明,高校内部院系效益评估在运用DEA模型时应兼顾或关注其所具有的适用性与不适用性的方面,综合运用多种评估方法。  相似文献   

4.
高质量的普通高中教育是办好高等教育的基础,科学有效的评价结果有助于提高高中教育的质量和效率。SBM交叉效率评价法,基于能够评价多输入、多输出系统的DEA方法,将自评价和他评价相结合,利用非径向和非角度的度量方法解决了投入松弛性问题,能够较科学地评价教育效率。利用SBM交叉效率方法对我国31个省份(自治区或直辖市)2000-2007年普通高中教育效率进行评价,结果发现:经济发展水平对各地区普通高中教育效率的影响较为复杂。经济发展处于中等水平的地区教育效率值较高,而经济发展水平较发达或较落后的地区教育效率值较低。教育决策者应站在整个国家的高度上统筹规划,将资源配置到对偶价格更高的省份(自治区或直辖市),使有限的教育资源得到更充分地利用。  相似文献   

5.
6.
目前集成电路所用的电源电压有多种,一个电路中不同电压的芯片之间传递信号(即前级输出驱动后级输入)存在着低电平驱动高电平以及高电平驱动低电平的情况,有必要采取一些措施,避免出现影响电路正常工作的问题。该文在进行一系列实验后,结合实际给出了一些电路连接的方法。  相似文献   

7.
Reviewers     
Abstract

The growth in importance of performance assessment in education over recent years has been linked with a concern to ensure that the service represents ‘value for money’. To date the absence of a satisfactory analytical framework has meant that questions of ‘effectiveness’ and ‘efficiency’ have been kept separate. An additional problem has been that, whilst there are many different outcomes which are appropriate for education authorities to pursue, conventional models handle these only one at a time.

In this paper we use data on the 96 English LEAs to show how an underlying model allows authorities to be compared in terms of ‘efficiency’ when facing different environmental circumstances and utilising different resource inputs. The technique of Data Envelopment Analysis (DEA) is first described in the context of an explanatory model, and then the results of applying this to the English LEAs are presented.

As distinct from a league table’ analysis, DEA gives some indications of where improvements are to be sought. It allows for ‘trade‐offs’ between outputs of different types and provides a small but distinct peer group of ‘efficient’ authorities to which an ‘inefficient’ LEA can be compared.

The efficiency measure used is ‘relative efficiency’ which arises from comparing the actual performance of an inefficient authority with that of others which can be used to model its environmental circumstances and resource inputs.

A number of case studies are described. The limitations of the technique, and the caution required in interpretation, are discussed.  相似文献   

8.
After correcting errors in our paper ([Bifulco and Bretschneider, 2001]), [Ruggiero, 2003]) finds that efficiency estimates provided by DEA and COLS have higher correlations with true efficiency values than indicated in our analysis. However, because Ruggiero only considers cases without measurement error, his analysis leaves the primary question of our study unanswered. Using the corrected data generation process proposed by Ruggiero, we find that the presence of measurement error substantially reduces the correlations between estimates of efficiency provided by DEA and COLS and true efficiency. Thus, the primary conclusions of our original study remain. If the administrative data sets used in school accountability programs have significant amounts of measurement error, and if the methods used to estimate efficiency require exogenous inputs, than measures of school efficiency can be quite misleading.  相似文献   

9.
To solve the problem of investment portfolio with single goal of maximal NPV, a 0- 1 programming model was proposed and proved effective; and to solve that concerning more elements of a project such as risk level and social benefit, a goal programming model is then introduced. The latter is a linear programming model adopting slack variable called deviation variable to turn inequation constraint into equation constraint, introducing a priority factor to denote different importance of the goals. A case study has demonstrated that this goal programming model can give different results according to different priority requirement of each objective.  相似文献   

10.
DEA方法在建设工程评标过程中的应用研究   总被引:2,自引:0,他引:2  
现行的评标方法存在主观因素影响大、评标指标之间缺乏关联性等缺陷。DEA方法是用来评价决策单元间的相对有效性(通常称为DEA有效)的一种评价方法。本文将DEA方法用于建设工程评标,建立了建设工程施工招标的DEA评价指标体系,并结合案例进行了分析。  相似文献   

11.
合理、准确的进行普通高中教育效率评价有利于引导教育投资方向,提高教育效率,推进教育改革。利用DEA模型,在假设规模收益不变条件下,采用基于投入的视窗分析方法研究1999-2009年我国各省市区普通高中的教育效率发现:同一时间段不同省份之间的教育效率差别很大,但同一省份不同时间段间的效率差别不大;与经济发展情况不同,中西部地区的教育效率高于东部地区;经济发达地区的各种投入的影子价格均低于欠发达地区。针对各地教育效率现状,政府应针对不同地区实际,制定鼓励民间资本投资普通高中的优惠政策,扩大对自然条件恶劣或少数民族聚居区异地教学支持的帮扶,加大财政转移支付,改善欠发达地区教育投入不足的现状,从而从总体上提高全国普通高中教育的效率水平。  相似文献   

12.
为了解决语义Web服务匹配方法主要针对服务IO描述的匹配, 导致匹配结果较为片面的问题, 提出了一种基于描述逻辑的语义Web服务IOPE描述及匹配方法. 具体使用描述逻辑概念标注服务IO, 以描述逻辑断言库刻画服务PE. 进行服务匹配时, 利用描述逻辑TBox概念包含检测确定服务请求与广告IO之间的包含关系; 利用描述逻辑ABox一致性检测推理, 判断服务请求与广告PE之间的逻辑蕴含关系; 依据此蕴含关系, 将PE匹配情况划分为4种, 即Exact, Perfect, Side-effect和Common匹配, 用以对匹配结果进行有意义的排序. 实验结果表明, 所提方法在召回率与现有方法相当的情况下, 具有更高的查准率.  相似文献   

13.
DEA两个基本模型研究概述   总被引:1,自引:0,他引:1  
主要探讨了DEA中的两个基本模型.首先,简要回顾了有关DEA模型的研究进展;接着,介绍了DEA研究中常用的两个基本模型:CCR模型及BCC模型,以及基于CCR模型的其他相关模型;最后,对CCR模型和BCC模型做了比较分析,并指出CCR模型和BCC模型各自的生产可行性/可能性集合是不同的.因此,CCR模型的边界具有线性特征,而BCC模型的边界具有分段线性特征,并呈现凹特性.  相似文献   

14.
对于具有多个阶段的生产过程,某个阶段中的一些产出可能为污染品,并且可以通过一定的技术转化为正常品。基于网络包络分析理论,以多阶段生产过程为研究对象,考虑污染品不经过处理情形下的最优预算和无排污权转让的技术定价问题。  相似文献   

15.
基于径向基函数神经网络的插值及其应用   总被引:1,自引:0,他引:1  
针对径向基函数 (RBF)神经网络的特点 ,对插值问题 ,采用RBF神经网络进行求解。并通过增加神经元的输入和输出来拓展应用范围 ,文中讨论了在对一个实际问题建立数学模型中的应用 ,从应用的结果看 ,比传统插值方法更方便 ,具有较好的使用价值 ,并且可以很容易地推广到求解高维数据插值问题之中。  相似文献   

16.
基于AHP/DEA的高校人文社会科学科研效率评价研究   总被引:2,自引:0,他引:2  
高校人文社会科学科研效率的评价应该同时考虑影响科研效率的定量因素和定性因素,为解决这个问题,建立了AHP/DEA评价模型。该模型首先运用AHP充分考虑定性因素,确定高校人文社会科学的科研产出效益,然后将评价结果作为DEA的输出项,并结合其它定量因素进行DEA评价。  相似文献   

17.
This article concurrently studies customer relationship management (CRM ) and organizational excellence (OE ) by pursuing three goals. First, it investigates the relationship between CRM and OE ; second, it conducts a performance assessment from CRM and OE viewpoints; and third, it analyzes how each factor of CRM and each criterion of OE affects an organization's performance. To achieve the first goal, a number of hypotheses about potential relationships between CRM factors and OE criteria are proposed with the cooperation of experts and using fuzzy DEMATEL . These hypotheses are then examined using the path analysis method to find out which one is supported and which one must be rejected. Subsequently, the data envelopment analysis (DEA ) approach is employed to accomplish the second goal. Finally, a t‐test is used to achieve the third goal. To implement the research in the real world, two major international airports of Iran are considered as our survey cases.  相似文献   

18.
超效率DEA(数据包络分析法)效率测度方法,在测度企业生产经营效率方面已经被广泛应用到企业效率测度领域.我们主要运用超效率DEA模型从投入、产出效率角度分析上市军工企业的经营效率.由于军工企业经营受到管理制度模式的影响,根据制度也是一种投入资源的理论,将军工企业管理体制作为投入资源之一,利用EMS软件对军工企业经营效率进行实证分析,以期对我国军工企业经营效率的提高做出一些探索.  相似文献   

19.
基于DEA的离岸软件外包承接城市效率研究   总被引:1,自引:0,他引:1  
通过将因子分析和数据包络分析的方法相结合,和对我国15个离岸软件外包承接城市的运作效率进行评价。用因子得分作为数据包络分析的输入输出指标,改进了传统数据包络分析的缺陷,得出了较为满意的结论。  相似文献   

20.
大学素质教育越来越关注创造教育投入绩效问题,用数据包络分析方法( DEA)对样本高校的创造教育状况进行实证分析,利用Tobit回归模型,分析影响创造教育的因素。通过分析和研究,发现高校创造教育投入绩效状况不理想,创造教育有较大提升空间;不同类型高校、不同大学年级存在效率差异,高校管理层对创造教育关注程度对创造教育投入绩效具有显著影响。  相似文献   

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