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针对军队第三方物流供应商的选择评价问题,首先通过分析军队选择第三方物流供应商的基本原则,建立了军队第三方物流供应商的综合评价指标体系。其次针对传统评价中单纯由主观判断确定指标权重方法的不足,在采用熵权法确定指标客观权重的基础上,建立了一种将熵权法和TOPSIS(逼近理想解的排序方法)相结合的综合评价模型。最后进行实例分析,验证了该方法的有效性和实用性,取得了较为满意的结果。 相似文献
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针对军队第三方物流供应商的选择评价问题,首先通过分析军队选择第三方物流供应商的基本原则,建立了军队第三方物流供应商的综合评价指标体系.其次针对传统评价中单纯由主观判断确定指标权重方法的不足,在采用熵权法确定指标客观权重的基础上,建立了一种将熵权法和TOPSIS(逼近理想解的排序方法)相结合的综合评价模型.最后进行实例分析,验证了该方法的有效性和实用性,取得了较为满意的结果. 相似文献
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基于改进TOPSIS法的第三方物流供应商选择 总被引:2,自引:0,他引:2
确定了合理的评价指标体系,并在此基础上将熵权法和TOPSIS法相结合对第三方物流供应商进行综合评价。在评价过程中,利用熵权法科学地确定各评价指标的权重,通过TOPSIS法对各第三方物流供应商进行定量排序,从而作为选择的依据。最后以湖州某知名的童装生产商为例,说明该方法的实用性。 相似文献
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基于熵值法的供应商评价模型研究 总被引:1,自引:0,他引:1
通过引入"熵权"概念,提出了基于熵值法的供应商评价模型,运用熵值法根据各评价指标的差异性对指标权重进行客观赋值.较为客观地提示出各指标的重要性,并结合案例进行了实证研究. 相似文献
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通过设计供应商评价指标体系,建立了基于熵权与改进后的TOPSIS方法相结合构成的供应商评价模型,并将其应用于供应链管理中,经过算例验证该方法是可行的,具有一定的实际意义。 相似文献
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针对在高校数字图书馆用户界面评价中存在不确定性和复杂性因素较多的问题,首先基于熵权法确定高校数字图书馆用户界面评价指标的权重,其次结合灰色关联分析法和TOPSIS法,构建基于熵权法的灰理想关联评价模型,对各高校数字图书馆用户界面进行灰理想关联评价。并以某四个高校数字图书馆用户界面综合评价为例介绍该模型的具体应用。计算结果表明:应用该模型对某四个高校数字图书馆用户界面进行评价可行、有效。 相似文献
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En este estudio se analiza el incumplimiento del salario mínimo durante el periodo 2003–2012 en diez países de Europa central y oriental con salario mínimo obligatorio nacional. A partir de los datos de EU‐SILC y la metodología propuesta por Bhorat, Kanbur y Mayet (2013), se cuantifica la incidencia y magnitud del incumplimiento. Se realizan análisis de regresión sobre determinantes individuales, laborales y macroeconómicos. Aunque la incidencia permanece relativamente baja, los trabajadores a los que se dirigen las políticas de salario mínimo parecen los más expuestos a su incumplimiento. Con el tiempo, una mayor incidencia se asocia a una razón más alta entre salario mínimo y salario medio. 相似文献
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Carl Grodach 《International journal of urban and regional research》2013,37(5):1747-1765
While a growing body of research analyses the functional mechanisms of the cultural or creative economy, there has been little attention devoted to understanding how local governments translate this work into policy. Moreover, research in this vein focuses predominately on Richard Florida's creative class thesis rather than considering the wider body of work that may influence policy. This article seeks to develop a deeper understanding of how municipalities conceptualize and plan for the cultural economy through the lens of two cities held up as model ‘creative cities’ — Austin, Texas and Toronto, Ontario. The work pays particular attention to how the cities adopt and adapt leading theories, strategies and discourses of the cultural economy. While policy documents indicate that the cities embrace the creative city model, in practice agencies tend to adapt conventional economic development strategies for cultural economy activity and appropriate the language of the creative city for multiple purposes. 相似文献
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Despite the establishment of high-tech multinational enterprises (MNEs) in Ireland since the late 1950s, the country did not succeed in closing the technological gap with most of its EU counterparts. The weak National System of Innovation (NSI), and in particular low business and government R&D levels, combined with a lack of research and technology linkages between MNEs and indigenous firms, explain these poor results. However, the Shannon region in the West of the country presents some specific institutional characteristics that could theoretically make the region a strong technological enclave. The various actors in the region - i.e. the administrative, financial, political and research institutions, as well as the business organizations - have indeed infused a new type of economic development. After a brief review of the available concepts and models articulated around these actors and their interrelationships, the paper analyses whether the Shannon region, taken as an illustrative example, mirrors a specific economic and technological localized setting. The study is based on a survey of indigenous and foreign firms. 相似文献
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María del Carmen Triana Pamela Gu Olga Chapa Orlando Richard Adrienne Colella 《人力资源管理》2021,60(1):145-204
This article reviews discrimination and diversity research published in Human Resource Management (HRM) over the past 60 years. While discrimination and diversity are very different constructs, it is often informative to study them together, because when people recognize each other's diversity, this can result in bias, stereotyping, and discrimination. We conducted bibliographic searches for terms related to discrimination and diversity as well as a manual search through every title and abstract published in HRM over the last 60 years to assess article relevance. The search resulted in 135 research articles with 136 unique studies (i.e., samples) which are reviewed in this article. Sex and race are the demographics that have been examined the most in HRM, while religion has been examined the least. Moreover, the number of studies examining lesbian, gay, bisexual, transgender, and queer (LGBTQ) employees in the workplace in HRM has grown quickly within the past 10 years, culminating in a recent meta‐analysis. Our review looks at some of the earliest research published, the most recent research published, and the overall trends we identified in the research over the years for both discrimination and diversity articles. We then make future research suggestions and recommendations to advance the study of discrimination and diversity in the coming years. 相似文献
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The Early History of the Cumulants and the Gram-Charlier Series 总被引:2,自引:0,他引:2
Anders Hald 《Revue internationale de statistique》2000,68(2):137-153
The early history of the Gram-Charlier series is discussed from three points of view: (1) a generalization of Laplace's central limit theorem, (2) a least squares approximation to a continuous function by means of Chebyshev-Hermite polynomials, (3) a generalization of Gauss's normal distribution to a system of skew distributions. Thiele defined the cumulants in terms of the moments, first by a recursion formula and later by an expansion of the logarithm of the moment generating function. He devised a differential operator which adjusts any cumulant to a desired value. His little known 1899 paper in Danish on the properties of the cumulants is translated into English in the Appendix. 相似文献
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This paper evaluates the impact of service sector trade liberalization on the world economy by a ten-region, eleven-sector CGE model with import embodied technology transfer from developed countries to developing countries. Simulation results show that service sector trade liberalization not only directly affects world service production and trade, but also has significant implications for other sectors in the economy. The major channel of the impact is through inter-industry input-output relations and TFP growth induced from services imported by developing countries from developed countries, which may be embodied with new information and advanced technology. 相似文献
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Former industrial cities in the West are employing gentrification as urban policy. In these policies, women and families currently play an important role as gentrification pioneers. In my analysis of Rotterdam in the Netherlands, I propose the term genderfication to understand the gender dimensions of this process. Genderfication refers to the production of space for different gender relations. I analyse Rotterdam's urban planning program for becoming a ‘child‐friendly city’, which entails replacing existing urban dwellings with new, larger and more expensive ‘family‐friendly homes’ as a strategy for urban re‐generation. Urban re‐generation supplements regeneration in the form of material and economic restructuring, and refers to the replacement of part of the current population by a new and better suited generation. The ‘child‐friendly city program’ is considered in tandem with punitive ‘youth policies’. 相似文献
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Hierarchical Models in Environmental Science 总被引:6,自引:0,他引:6
Christopher K. Wikle 《Revue internationale de statistique》2003,71(2):181-199
Environmental systems are complicated. They include very intricate spatio-temporal processes, interacting on a wide variety of scales. There is increasingly vast amounts of data for such processes from geographical information systems, remote sensing platforms, monitoring networks, and computer models. In addition, often there is a great variety of scientific knowledge available for such systems, from partial differential equations based on first principles to panel surveys. It is argued that it is not generally adequate to consider such processes from a joint perspective. Instead, the processes often must be considered as a coherently linked system of conditional models. This paper provides a brief overview of hierarchical approaches applied to environmental processes. The key elements of such models can be considered in three general stages, the data stage, process stage, and parameter stage. In each stage, complicated dependence structure is mitigated by conditioning. For example, the data stage can incorporate measurement errors as well as multiple datasets with varying supports. The process and parameter stages can allow spatial and spatio-temporal processes as well as the direct inclusion of scientific knowledge. The paper concludes with a discussion of some outstanding problems in hierarchical modelling of environmental systems, including the need for new collaboration approaches. 相似文献
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When sampling a batch consisting of particulate material, the distribution of a sample estimator can be characterized using knowledge about the sample drawing process. With Bernoulli sampling, the number of particles in the sample is binomially distributed. Because this is rarely realized in practice, we propose a sampling design in which the possible samples have a nearly equal mass. Expected values and variances of the sample estimator are calculated. It is shown that the sample estimator becomes identical to the Horvitz–Thompson estimator in the case of a large batch-to-sample mass ratio and a large sample mass. Simulations and experiments were performed to test the theory. Simulations confirm that the round-off error due to the discrete nature of particles is negligible for large sample sizes. Sampling experiments were carried out with a mixture of PolyPropylene (PP) and PolyTetraFluorEthylene (PTFE) spheres suspended in a viscous medium. The measured and theoretical variations are in good agreement. 相似文献