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1.
为评估我国省域经济发展状况,文章从经济、社会及环境三个角度出发,构建了一套区域经济发展水平指标体系。并在此基础上综合运用CH指标法、面板数据K-means聚类法及判别分析法,实现了对我国31个省市的聚类评价,并依据评价结果将我国省域按经济发展水平高低划分为5类,展示了我国区域经济的空间分布;通过对聚类结果的解析为相关部门解决经济发展不平衡问题提供参考。  相似文献   

2.
在总结前人研究成果的基础上,构建了一套针对我国省域尺度经济可持续发展评价指标体系,运用投影寻踪和聚类方法,对我国内地30个省(市、自治区)1998-29年的经济可持续发展水平(多指标面板数据)进行分析,根据投影值进行聚类,得出5种经济可持续发展模式。分析结果表明,我国大部分省区目前处于经济可持续发展较好的水平,城市化水平较高的京沪津地区应在继续发展经济的同时,更加注重工业污染的治理和可持续发展指标的考核。  相似文献   

3.
《经济师》2018,(4)
客户价值细分是赢得企业核心竞争力优势的有效途径之一。通过建立客户价值细分聚类有效性评价指标及有效性函数,分析在标准数据库上仿真实验结果。对比传统客户细分聚类方法与客观聚类的结果对应的聚类评价指标及有效性函数值,验证了客观聚类结果优于传统客户细分聚类方法,尤其是在处理多属性客户数据及不需要领域专家经验支持决策方面的优势,表现出较强的可扩展性。  相似文献   

4.
为评估我国区域经济发展状况,从经济、社会和环境三个角度出发构建了一套经济发展水平评价指标体系,考虑到区域经济发展水平是一个动态变化的过程,为此引入了MA聚类法,实现了对我国区域经济发展水平的动态聚类及聚类预测,并依据聚类结果从多个角度揭示了我国区域经济发展水平的现状;通过对聚类结果变动原因的分析为相关部门研究区域经济问题提供了参考。  相似文献   

5.
论文从社会发展、经济增长、生态建设、资源利用和环境保护5个方面构建生态经济综合指数评价指标体系。基于2009—2013年江西省11个地级市的面板数据,利用熵权法对指标客观赋权,从评价者对生态经济评价趋优考虑的角度,构建趋优融合下的灰色关联分析模型,对江西省各地市的生态经济综合指数进行动态评价研究。运用系统聚类方法将各区域不同维度下的生态经济发展水平划分为三类:Ⅰ类城市:南昌市、景德镇市和萍乡市;Ⅱ类城市:九江市、新余市、鹰潭市和赣州市;Ⅲ类城市:吉安市、宜春市、抚州市和上饶市,并提出相关对策建议,以供参考。  相似文献   

6.
《经济师》2019,(12)
大数据时代,商业企业越发注重依据海量消费信息制定精准营销策略,卷烟消费者类别的精确识别则是制定精准营销策略的关键。文章构建了包含多指标的改进型RFM模型,采用组合赋权法确定指标权重,以T城市A公司卷烟消费者(会员店)电子数据为基础,并运用K-means聚类方法进行卷烟消费者细分。实证结果表明,利用此方法可将目标消费者细分为五种类型,烟草公司可根据细分消费者类型特征,制定精准营销策略。  相似文献   

7.
周—布方法是影响较大的城市职能分类方法,SOFM网络方法是应用人工神经网络进行城市职能分类的新方法。采用这两种方法分别将2010年135个城市的职能分为3类、5类和12类。比较二者的异同点和优缺点,得出:①周—布方法是监督聚类,权重设置对分类结果有很大影响,SOFM网络方法是非监督聚类,避免了人为确定指标的主观性;②周—布方法计算速率快,分类结果稳定,分类类别数较易确定;③周—布方法的三种分类结果之间形成聚类树形图,SOFM网络方法的三种结果之间存在交叉;④周—布方法对规模数据比较敏感,SOFM网络方法对行业数据比较敏感。⑤周—布方法的多个城市分类不合理,SOFM网络方法职能类型较明显,分类结果更为合理。综合来看,SOFM网络方法优于周—布方法,但分类结果的稳定性会影响其使用范围,需进一步研究。  相似文献   

8.
基于聚类分析的银行客户关系管理策略研究   总被引:2,自引:1,他引:1  
肖凤  郑海健  卢闯 《技术经济》2010,29(1):87-93
本文将数据挖掘聚类技术应用于银行客户分类,分析了银行交易特征数据;构建了数据模型,对60万条样本数据进行了K-means聚类;采用轮廓系数对聚类结果进行了评估,并基于聚类结果进行了客户二维分类,据此制定出更有效的客户关系管理策略。  相似文献   

9.
企业信息化的灰聚类评价模型及应用   总被引:3,自引:0,他引:3  
企业信息化评价时需要考虑的因素多,具体指标的评价值又无法完全确知。根据这些特点,首先针对不同专家对多指标的评价,构造指标样本矩阵,建立白化权函数,确定友聚类评价系数,最后采用定权方法进行企业信息化的灰聚类综合评价。  相似文献   

10.
经济发展与环境关系的实证研究   总被引:2,自引:0,他引:2  
运用1995~2008年我国省际面板数据,对我国人均GDP与人类发展指数(HDI)两类经济发展指标与包括废水、废气、废渣的3类污染指标之间的关系进行了检验。实证结果发现,3类污染物指标与2类收入指标均大都呈现倒N型的关系,只有工业废水排放量与HDI呈现倒U型关系。表明我国各类污染物排放量随着经济的发展还是遵循较一致的路径的,这告诫我们,不发达省份应当吸收借鉴发达省份的环境治理经验,发挥后发优势,避免再走先污染后治理的老路。更为重要的是,已经越过倒N型第二个临界值的发达省份应极力避免经济发展与环境污染之间发生不利的重组现象,例如倒N型重组为W型。  相似文献   

11.
John Stuart Mill has traditionally been portrayed as self-contradictory and failing to construct a unified social theory. Recent scholarship, however, has challenged this view, finding Mill's work to be creatively synthetic in bridging the antinomies inherent in liberal democratic thought. This revisionist interpretation of Mill is advanced by an understanding of his theory of justice and its role in shaping his policy positions on issues such as welfare, education, voting rights, property rights, taxation, government intervention, and the future of capitalism.  相似文献   

12.
Arik Hesseldahl In the aftermath of the September 11 attacks, U.S. officials quickly turned their attention to other potential targets, including California's Golden Gate Bridge. What would happen if terrorists took down the bridge between San Francisco and Marin County? How much of the region would be affected and for how long?  相似文献   

13.
14.
Although he was much influenced by David Ricardo when he wrote the classical part of his Principles , John Stuart Mill was not a Ricardian when he penned his theories of wealth and distribution. They are based on a triple foundation. First, a belief that economics is a moral discipline. Second a theory of custom-driven human behavior. Third, an empirically formed conviction that the institutions of state, education and business cooperate to structure the distribution of income. On the basis of these presuppositions, Mill formulated 1) an institutional theory of the formation of human and non-human wealth and 2) an even more institutional theory of distribution demonstrating how the aforementioned institutions malignantly skew the distribution of income to the advantage of the propertied classes and to the extreme disadvantage of the working class. As a social economist, Mill recommended institutional reforms designed to eradicate the poverty of the working class.  相似文献   

15.
中国拥有世界五分之一强的人口 ,收入又在迅速增长。因此 ,国际上很自然地会考虑或推测她在今后的几十年是否有能力养活自己。中国的人口预计将从 2 0 0 0年的 1 2 8亿增长到 2 0 2 0年的 1 4 6亿 ,和 2 0 3 0年的 1 4 9亿。与此同时 ,人均收入的增长将导致对家畜和鱼类产品更大的需求 ,因而对饲料的需求也将有很大的增长  相似文献   

16.
Synopsis Classification is an important activity that facilitates theory development in many academic disciplines. Scholars in fields such as organizational science, management science and economics and have long recognized that classification offers an approach for ordering and understanding the diversity of organizational taxa (groups of one or more similar organizational entities). However, even the most prominent organizational classifications have limited utility, as they tend to be shaped by a specific research bias, inadequate units of analysis and a standard neoclassical economic view that does not naturally accommodate the disequilibrium dynamics of modern competition. The result is a relatively large number of individual and unconnected organizational classifications, which tend to ignore the processes of change responsible for organizational diversity. Collectively they fail to provide any sort of universal system for ordering, compiling and presenting knowledge on organizational diversity. This paper has two purposes. First, it reviews the general status of the major theoretical approaches to biological and organizational classification and compares the methods and resulting classifications derived from each approach. Definitions of key terms and a discussion on the three principal schools of biological classification (evolutionary systematics, phenetics and cladistics) are included in this review. Second, this paper aims to encourage critical thinking and debate about the use of the cladistic classification approach for inferring and representing the historical relationships underpinning organizational diversity. This involves examining the feasibility of applying the logic of common ancestry to populations of organizations. Consequently, this paper is exploratory and preparatory in style, with illustrations and assertions concerning the study and classification of organizational diversity.  相似文献   

17.
This paper examines the essential difference between the U.S. and Japan, when one considers information infrastructure. There are seven perception gaps between the U.S. and Japan concerning Information Infrastructure policies. These gaps must be understood in order to compare the countries' governmental policies in this area. In looking at the present circumstances, the essential question to answer concerns who is to build, own and operate the network(s) of the infrastructure. Liberalization is certain to be a central factor in the ongoing telecommunications debates. Now that customers have had a taste of the liberalized market-place, the movement toward more open markets will be difficult to stop. When considering options, it is necessary to pay close attention to standardized network access and the increasingly important role software plays. These issues are causing us to take a new approach to the traditional role played by regulators. They also force a closer look at the appropriate structure of utility companies. This paper addresses the above issues in hopes of stimulating dialog on the new telecommunications infrastructure paradigm.  相似文献   

18.
海岛地区产业演替及资源基础分析--以舟山群岛为例   总被引:2,自引:0,他引:2  
改革开放以来,舟山市产业构成发生了显著变化,其经济发展过程可以划分为三个阶段。1992年前,是以产业结构渔业占绝对地位的单一结构阶段;1993—1998年,以旅游业为主的第三产业快速发展阶段;上世纪末以来,又进入了新一轮的经济发展时期,即工业产值比重快速增加阶段。根据海岛的自然资源基础和特点,在新世纪的经济发展过程中,舟山市应定位为生态型的港口旅游城市。以港口及临港工业为主导,以海岛旅游和海洋经济为特色,大力发展第二产业和第三产业。海岛地区的主导产业应体现海岛资源优势及区位优势,以集群性环保型产业为主。同时由于海岛地区淡水资源缺乏,主导产业也应着重选择低耗水型产业。  相似文献   

19.
本文基于委托代理模型,从风险的视角研究企业治理结构对研发创新能力的影响。本文构建了一个包含创新活动的委托代理模型进行理论分析,利用动态DEA 模型测算创新能力,并使用2015-2018年我国上市制造业企业数据进行实证检验。实证部分检验了理论结论:委托代理问题不利于企业提升研发创新能力,且客观风险和主观风险厌恶会加剧该负面影响。基于此,本文认为上市企业应根据企业自身研发活动特点有针对性地改善企业治理结构,提出了适当延长代理人任期、推动股权激励计划、提升代理人的风险承担能力等建议。  相似文献   

20.
生物群落结构原型的仿生学模拟   总被引:3,自引:0,他引:3  
模拟生命系统管理规律的科学即管理仿生学,是知识时代仿生学研究的新领域与前沿.基于模拟生物群落结构规律的研究目的,采用仿生学模拟的研究方法,以生物群落结构为原型,建立了仿生群落结构模型.结论为:垂直结构、水平结构、时间结构与交错区结构是支持生物群落生命活动的结构规律,以该规律为原型,推理建立了仿生分层结构、仿生优化结构、仿生动态结构与仿生相邻结构,四种仿生结构分别侧重于管理资源的分层管理、局部优化管理、动态过程管理、相邻关系管理,该模型为建立类似生物群落的人造管理系统即仿生群落管理系统提供了仿生结构模型.可以预测,该模型具有广泛的应用价值,能够推动管理仿生学的发展.  相似文献   

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